Active filters amplify desired signals while rejecting unwanted frequencies, and can be tailored to meet application-specific requirements in electronics.
Amplifiers boost signal strength, match impedance levels, and are essential in many circuit systems, including audio, broadcasting, and telecommunications.
Batteries store and provide electrical energy, come in various types and sizes for multiple uses, rechargeable or single-use.
Capacitors store electrical charge with metallic plates and a dielectric; types vary and can be combined for specific circuit characteristics.
Chip carriers and sockets provide an interface between components and PCBs, enabling easy replacement or upgrading without soldering.
Circuit protection devices prevent damage from overcurrent flow, including fuses, breakers, surge protectors, and voltage regulators.
Connector accessories and support devices aid connector function and longevity, including backshells, grips, clamps, and ties; must be compatible with connector type.
Connectors join electronic circuits to transfer signals and power, come in various sizes and shapes, and include support accessories.
Converters transform DC input to another voltage level, essential in electronic systems, renewable energy, and automotive electronics.
Crystals and resonators generate and stabilize frequency signals via piezoelectricity. They are used in timing, frequency control, and filters. Crystals are quartz and resonators are ceramic with a built-in capacitor.
Semiconductor diodes control current flow in one direction (uni-directionality) via low resistance. Useful for rectification, voltage regulation, detection, and digital logic.
Discover essential electronic components for your devices, including CPU accelerators, system cache controllers, computer processors, motherboards, and graphics computing systems. Enhance device performance and connectivity with reliable components engineered for seamless integration and optimal functionality.
Fiber optics use light pulses to transmit data over long distances. They have superior bandwidth capacity, low signal attenuation, and secure physical properties. They are essential in telecommunications networks today.
Filters enhance signal processing by selectively passing desired frequencies while suppressing unwanted ones. Filters can be passive (using capacitors, resistors, and inductors) or active (using transistors or amplifiers).
Flash devices are non-volatile storage solutions that offer fast read and write speeds, making them ideal for applications requiring high-speed data transfer. These devices utilize flash memory technology, providing reliable storage for data-intensive tasks such as gaming, multimedia, and enterprise-level applications.
General purpose ICs consist of multiple individual circuits or components (e.g., logic gates, amplifiers, oscillators, etc.) that are combined onto a single integrated circuit chip for a smaller physical footprint.
I/O and storage controllers are crucial components in computer systems, managing input/output operations and storage devices. These controllers facilitate efficient data transfer between peripherals, storage drives, and the central processing unit (CPU), enhancing system performance and enabling seamless connectivity.
Inductors store energy in magnetic fields, oppose sudden changes in current flow and prevent electrical surges. Common inductor applications include power supplies, signal filters, and oscillators.
Interface ICs allow efficient device connectivity with high-speed data transfer and low power consumption.They can be ASIC or FPGA types, and may perform additional functions such as sensing, storage, and conversion.
Logic ICs can be used for storage, memory, amplification, and multiplexing. They perform fundamental logical operations on digital input signals (1, 0, H, L) to generate a corresponding digital output signal.
Memory modules are essential components in electronic devices, storing data temporarily or permanently for processing and retrieval. From volatile RAM (Random Access Memory) to non-volatile ROM (Read-Only Memory), memory technologies vary in speed, capacity, and functionality, catering to diverse application requirements.
Memory ICs store digital data and retain the information even when the power is turned off. They come in various types, like RAM (Random Access Memory) for fast data access, and ROM (Read-Only Memory) for permanent data storage.
Miscellaneous semiconductor components are a diverse category of electronic components that combines elements from a mix of component devices.
Optoelectronic devices interact with light. This family of devices can emit light, detect light, generate current, and transmit light signals for long-distance communication.
Oscillators generate repetitive waveforms, such as sine, square, or triangle waves. They are commonly used to produce stable and precise frequencies for applications like clocks, signal generation, and communication systems.
Other Function Semiconductor components are a diverse category of semiconductor components that perform a range of specialized functions.
Passive component networks operate without a power source and support data transmission within system by performing filtering, energy storage, and/or signal coupling functions.
Peripheral ICs (Integrated Circuits) are designed to control and manage the peripheral devices connected to a computer or other electronic device.
Programmable Logic ICs are user-programmable devices that allow designers to create custom logic circuits. These cost saving ICs offer real-time data processing and maximum design flexibilty.
RF (Radio Frequency) and microwave devices are used in telecommunications, wireless communications, and electronic systems. These devices include amplifiers, attenuators, filters, mixers, oscillators, and antennas, and a host of other components.
Voltage regulators are used to ensure a constant output voltage despite power fluctuations and load changes. Linear and switching regulators are common types used to maintain voltage stability.
Relays are electromagnetic switches that are used to control the flow of electrical current in an electrical circuit. Relays are a safe means of providing isolation between a controlling circuit and a controlled circuit.
Resistors control the flow of electrical current in a circuit by introducing a set resistance. These passive components reduce current flow, adjust signal levels, and bias active elements in circuits.
Transducers convert energy from one form to another and are crucial in sensing, audio and control systems. They transform physical measures like temperature, pressure, or sound into electrical signals for circuits.
Storage drives are hardware devices used to store and retrieve digital data in computers and electronic devices. These drives come in various forms, including hard disk drives (HDDs), solid-state drives (SSDs), and hybrid drives, offering different levels of capacity, speed, and durability to suit specific storage needs.
Storage media encompass physical or digital mediums used for storing and preserving digital data. From optical discs and magnetic tapes to USB flash drives and memory cards, storage media come in diverse formats and capacities, offering flexibility and reliability for data storage and archival purposes.
Storage systems comprise hardware and software components designed to manage and store digital data efficiently. These systems range from simple standalone devices to complex network-attached storage (NAS) and storage area network (SAN) solutions, providing scalable storage capacity and data protection features for businesses and enterprises.
Switches control electrical current flow by making or breaking connections. These devices vary in design and application, from basic on/off switches to complex industrial automation systems.
Telecom integrated circuits (ICs) are specialized electronics for telecommunications, tailored to high data rates, low power use, and reliable long-distance transmission. These devices include amplifiers, filters, ADCs, DACs, and more-- and they are often integrated on one chip for specific telecom tasks.
Terminal blocks, or connection terminals, are modular blocks that bring together multiple electrical wires at one connection point. They offer a reliable, organized way to terminate cables.
Thermal management devices control heat in electronic systems, preventing overheating and ensuring optimal performance and reliability. Examples include heat sinks, fans, and thermal interface materials that dissipate or transfer heat away from components.
Transformers are devices that alter electrical voltage levels between circuits through electromagnetic induction. They are vital in power distribution, converting high-voltage electricity for transmission and lower voltage for safe usage.
Transistors are 3-layer semiconductor devices that regulate the flow of electrical current. They function as amplifiers, boosting weak signals, and as switches, controlling the flow of current between terminals.
Triggering devices initiate electronic processes or events in response to specific conditions. These devices support many automated tasks such as activating switches and signals, or turning on lights when motion is detected.
Video cards, also known as graphics cards or GPU (Graphics Processing Unit), are essential components in computers, responsible for rendering graphics and images on display devices. These cards feature dedicated processors and memory, delivering smooth and immersive visual experiences for gaming, multimedia, and professional applications.
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The Littelfuse MDCG-4-17-28 is a SPST dry reed switch with max pull in of 38 AT and min pull in of 12 AT. It operates b/w -40 to 125 °C, with max DC contact current of 0.5 A. Ideal for applications requiring reliable switching at resonant frequency of 3.9 kHz.
Median Price
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Mouser Electronics
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DigiKey
$0.960
$0.798
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$0.625
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NAC Semi
$0.286
Kepictronics
Higher pull in force ensures reliable operation and precise switching, making this product suitable for applications where accuracy is crucial.
Lower minimum pull in force allows for efficient operation even in low-power situations, making this product versatile and energy-efficient.
SPST (Single Pole, Single Throw) functionality offers simple on/off control, making this product easy to use and ideal for basic switching applications.
With a high maximum operating temperature, this product can withstand extreme heat conditions, making it suitable for a wide range of environments.
The maximum AC contact current rating ensures safe and reliable operation under specified conditions, making this product a dependable choice for AC circuits.
With a low minimum operating temperature, this product can function effectively in cold environments, making it suitable for applications that require operation in freezing conditions.
The nominal resonant frequency indicates the frequency at which the switch operates optimally, ensuring fast and responsive switching, making this product suitable for high-speed applications.
The TIN terminal finish provides corrosion resistance and ensures good electrical conductivity, making this product durable and reliable over time.
With a high maximum DC contact voltage rating, this product can safely handle high voltage levels, making it suitable for DC circuits with varying voltage requirements.
Dry reed switches offer precise and reliable operation with minimal contact bounce, making this product ideal for applications that require accurate switching without electrical noise.
The maximum AC rating for resistive load contact ensures compatibility with a variety of AC devices, making this product versatile and suitable for different AC circuit applications.
The compact body size of this product allows for easy installation and integration into small spaces, making it ideal for applications with limited area for sensor placement.
The high DC rating for resistive load contact ensures reliable performance with DC devices, making this product suitable for a wide range of DC circuit applications.
The maximum DC contact current rating indicates the maximum current that the switch can handle without overheating, making this product safe and reliable for DC circuits.
Solder termination provides a secure and reliable connection, making installation quick and easy, and ensuring a stable connection for long-term use.
The maximum AC contact voltage rating indicates the maximum voltage that the switch can safely interrupt, making this product suitable for a wide range of AC circuit applications.
The through-hole straight mounting feature allows for easy and secure installation on circuit boards, making this product convenient for integration into electronic devices and systems.
Magnetic Reed Switches MDCG-4-17-28 attributes and parameters. Explore more Magnetic Reed Switches devices from Littelfuse
Body Height:
Body Length/Diameter:
AC Maximum Rating R Load (Contact):
Maximum AC Contact Current:
Maximum DC Contact Current:
DC Maximum Rating R Load (Contact):
Maximum AC Contact Voltage:
Maximum DC Contact Voltage:
JESD-609 Code:
Mounting Feature:
Maximum Operating Temperature:
Minimum Operating Temperature:
Maximum Pull In:
Minimum Pull In:
Nominal Resonant Frequency:
Switch Function:
Switch Type:
Terminal Finish:
Termination Type:
MDCG-4-17-28 Switches trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.50.70.00
SB
PCN Design/Specification - Reed Switch Box Logo Change 23/Sep/2015
PCN Packaging - Multiple Series Packaging 26/Aug/2020
Littelfuse is a diversified industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 18,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation, and electronics end markets—everywhere, every day. Headquartered in Chicago, Illinois, United States, Littelfuse was founded in 1927.
1N4148WS
Sangdest Microelectronics (Nanjing)
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
2N7002
Telcom Semiconductor
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .2 W; Maximum Operating Temperature: 150 Cel; JESD-609 Code: e0;
M39029/58-360
Conesys
CONNECTOR ACCESSORY; MIL Conformity: YES; Mating Contacts: M39029/57-354; Terminal Type: CRIMP; DIN Conformity: NO; MIL-Connector Accessory Name: CONTACT;
LP2950CDT-3.3G
Onsemi
LP2950CDT-3.3G by Onsemi is a fixed positive single output LDO regulator with a nominal output voltage of 3.3V and max output current of 0.1A. It has a small outline package style, operates at temperatures ranging from -40 to 125 °C, and is suitable for applications requiring low dropout voltage and precise voltage regulation in electronic circuits.
IRLML6401TRPBF
International Rectifier
P-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): 1.3 W; Minimum Operating Temperature: -55 Cel; Avalanche Energy Rating (EAS): 33 mJ;
BSS138
Siemens
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; Maximum Drain-Source On Resistance: 3.5 ohm; Terminal Finish: Tin/Lead (Sn/Pb);
AH180-WG-7
Diodes Incorporated
AH180-WG-7 by Diodes Inc. is a magnetic field sensor with 1.5mT hysteresis, 0.30V output range, and 9mA max operating current. Ideal for applications requiring non-inverting analog voltage output in a compact rectangular package suitable for surface mount installations.
Continental Device India
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LM7805CT
Silicon Group
Other Regulators; No. of Terminals: 3; Maximum Input Voltage Absolute: 35 V; Maximum Voltage Tolerance: 5 %; Package Body Material: PLASTIC/EPOXY; Maximum Load Regulation: .05 %;
SMBJ18CA
Dc Components
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
North American Philips Discrete Products Div
N-CHANNEL; Configuration: SINGLE; Surface Mount: YES; Maximum Power Dissipation (Abs): .36 W; No. of Elements: 1; Maximum Drain Current (Abs) (ID): .2 A;
BSS138K-13
BSS138K-13 by Diodes Inc. is a N-channel FET with 50V DS breakdown voltage, ideal for switching applications. It features single configuration with built-in diode, operating in enhancement mode. With 3 terminals and 0.31A max drain current, it offers high performance in small outline package style.
BAV99
Micro Commercial Components
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
0460-202-16141
TE Connectivity
TE Connectivity's 0460-202-16141 contact features a crimp terminal type, machined contact design, and rated AC voltage of 1500V. With a wire gauge range of 20-16 AWG, it is ideal for applications requiring a male round pin-socket contact style in assembly products.
OPA2277UA
Burr-Brown Corporation
OPERATIONAL AMPLIFIER; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
1N4148
Gulf Semiconductor
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
Infineon Technologies
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: YES; Maximum Power Dissipation (Abs): .5 W; Transistor Element Material: SILICON; Field Effect Transistor Technology: METAL-OXIDE SEMICONDUCTOR;
2N2222A
General Transistor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
MICRODIODE ELECTRONICS SHENZHEN CO LTD
M24308/2-1F
Souriau-sunbank Connection Technologies
D SUBMINIATURE CONNECTOR; Option: GENERAL PURPOSE; Contact Gender: FEMALE; Body Length: 1.228 inch; Mounting Type: CABLE AND PANEL; Termination Type: CRIMP;
MRPR-20-22-33
Littelfuse
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum AC Contact Current: 1.1 A; Minimum Pull In: 22 AT; Body Height: 20.32 mm;
MDSM-10B-10-25
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; AC Maximum Rating R Load (Contact): .35A@140VAC; Body Height: 10.16 mm; Body Length/Diameter: 1.8 mm;
MITI-710-15
MITI-710-15 by Littelfuse is a SPST dry reed switch with hermetically sealed body. It has a max pull in of 15 AT and operates b/w -40 to 125 °C. Ideal for applications requiring reliable switching at up to 170VDC or 120VAC, such as automotive sensors and security systems.
59166-1-S-00-C
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Body Height: 2.51 mm; AC Maximum Rating R Load (Contact): .35A@140VAC; Minimum Pull In: 10 AT;
MLSM-3R32-38
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Maximum DC Contact Current: 1 A; AC Maximum Rating R Load (Contact): .7A@140VAC; Termination Type: SOLDER;
RI80SMD-0515-G2
Comus International
RI80SMD-0515-G2 by Comus Int. is a SPST dry reed switch with 15AT max pull in, 2AT min drop-out, and 5AT min pull in. Hermetically sealed for reliability, it operates b/w -55°C to 125°C. Ideal for applications requiring high electrical life and precise switching at resonant frequency of 21.3kHz.
KSK-1A35-1520
Meder Electronic Ag
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; DC Maximum Rating R Load (Contact): 1A@200VDC; Body Length/Diameter: 2.2 mm; Maximum DC Contact Voltage: 200 V;
DRS-50-42-53
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum DC Contact Voltage: 400 V; Minimum Operating Temperature: -40 Cel; Maximum AC Contact Voltage: 280 V;
MITI-3V1-6-10
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum Operating Temperature: 125 Cel; Body Height: 7 mm; Body Length/Diameter: 1.8 mm;
DRS-50-77-83
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Packing Method: BULK; Minimum Pull In: 77 AT; Maximum AC Contact Current: 2.1 A;
MLSM-3B22-28
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Nominal Resonant Frequency: 6 kHz; Maximum Operating Temperature: 125 Cel; Maximum DC Contact Current: 1 A;
59165-1-T-00-D
Hamlin Electronics Europe
DRY REED SWITCH;
HA15-2-22-28
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Minimum Pull In: 22 AT; Maximum DC Contact Current: .5 A; Maximum AC Contact Current: .35 A;
KSK-1C90F-2025
Standex-meder Electronics
KSK-1C90F-2025 by Standex-Meder Electronics is a SPDT magnetic reed switch with 25 AT max pull in and 20 AT min pull in. With a body height of 14 mm, it operates b/w -40 to 130 °C and can handle 0.5A@175VAC/DC. Ideal for applications requiring reliable switching in various environments.
MDCG-4-17-23
The Littelfuse MDCG-4-17-23 is a SPST DRY REED SWITCH with 38 AT max pull in and 12 AT min pull in. It operates b/w -40 to 125 °C, with 0.5A@200VDC DC max rating. Ideal for applications requiring reliable magnetic reed switches.
MLSM-3R17-23
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Maximum DC Contact Voltage: 200 V; Maximum Pull In: 23 AT; Nominal Resonant Frequency: 6 kHz;
MDSM-10
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-RIGHT ANGLE; Switch Function: SPST; Maximum Pull In: 25 AT; Maximum DC Contact Current: .5 A; Minimum Pull In: 10 AT;
MDCG-4-32-38
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; DC Maximum Rating R Load (Contact): .5A@200VDC; Maximum DC Contact Voltage: 200 V; Body Height: 15.24 mm;
MASM-14R-20-25
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Sealing: HERMETICALLY SEALED; Maximum AC Contact Voltage: 140 V; Maximum DC Contact Voltage: 200 V;
MDRR-DT-15-25-U
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: CHANGE-OVER; Maximum AC Contact Voltage: 120 V; Body Height: 14.73 mm; Nominal Resonant Frequency: 11 kHz;
Partstack™ will investigate all reported instances of potential suspect/counterfeit part listings.
MDCG-4-12-33
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Body Height: 15.24 mm; Body Length/Diameter: 2.28 mm; Minimum Operating Temperature: -40 Cel;
MDCG-4
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Manufacturer Series: MDCG-4; Sealing: HERMETICALLY SEALED; Body Length/Diameter: 2.28 mm;
MDCG-4-12-18
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; AC Maximum Rating R Load (Contact): .35A@140VAC; Terminal Finish: TIN; Termination Type: SOLDER;
MDCG-4-12-23
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Terminal Finish: TIN; Maximum AC Contact Voltage: 140 V; Maximum DC Contact Current: .5 A;
MDCG-4-12-23AT
DRY REED SWITCH; Manufacturer Series: MDCG-4;
MDCG-4-17-23AT
MDCG-4-17-28AT
MDCG-4-22-28
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum DC Contact Voltage: 200 V; Maximum AC Contact Voltage: 140 V; JESD-609 Code: e3;
MDCG-4-22-28AT
MDCG-4-22-33
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; AC Maximum Rating R Load (Contact): .35A@140VAC; Maximum AC Contact Current: .35 A; Minimum Pull In: 12 AT;
MDCG-4-22-33AT
MDCG-4-27-33
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum AC Contact Voltage: 140 V; Maximum DC Contact Voltage: 200 V; Maximum Pull In: 38 AT;
MDCG-4-27-33AT
MDCG-4-27-38
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum AC Contact Current: .35 A; AC Maximum Rating R Load (Contact): .35A@140VAC; Maximum Operating Temperature: 125 Cel;
MDCG-4-27-38AT
MDCG-4-32-38AT
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Sealing: HERMETICALLY SEALED; Body Height: 15.24 mm; Maximum DC Contact Voltage: 200 V;
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