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.
Choose from over than a million of proven quality materials. Over 300 manufacturers are presented. From renowned major international players to small independent companies with a proven track record in local markets.
Featured manufacturers
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Body Length/Diameter: 2.28 mm; Maximum Operating Temperature: 125 Cel; Maximum DC Contact Voltage: 200 V;
Median Price
$1.545
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3
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1k+
Mouser Electronics
1+ parts
$1.520
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$1.080
1k+ parts
$0.913
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$0.815
DigiKey
$1.570
$1.098
$0.817
Vyrian
-
Formix International (Excess)
Magnetic Reed Switches MDSM-4B-12-18 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:
Packing Method:
Maximum Pull In:
Minimum Pull In:
Nominal Resonant Frequency:
Sealing:
Switch Function:
Switch Type:
Terminal Finish:
Termination Type:
MDSM-4B-12-18 Switches trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8536.50.70.00
SB
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.
1N4148
STMicroelectronics
RECTIFIER DIODE; Surface Mount: NO; Maximum Output Current: .15 A; Maximum Operating Temperature: 200 Cel; Config: SINGLE; Terminal Finish: Tin/Lead (Sn/Pb);
261
Micronetics
Other Interface ICs; Temperature Grade: MILITARY; Terminal Form: FLAT; No. of Terminals: 14; Package Code: DFP; Package Shape: SQUARE;
Laube Technology
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
2N2222A
Microsemi
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Collector Current (IC): .8 A; Minimum DC Current Gain (hFE): 30; No. of Elements: 1;
LAN8720AI-CP-TR
Microchip Technology
LAN8720AI-CP-TR by Microchip is an Ethernet transceiver with 100 Mbps data rate, operating at -40 to 85 °C. It features a 3.3 V supply voltage, 54 mA supply current, and TS 16949 screening level. Ideal for network interfaces in industrial applications due to its compact square package and low profile design.
DS18B20Z+T&R
Analog Devices
DS18B20Z+T&R by Analog Devices is a 12-bit temperature sensor with 1-Wire interface. It operates b/w -55 to 125°C, offering ±0.5°C accuracy. The sensor comes in a plastic package suitable for surface mount applications, with a max supply voltage of 5.5V and min of 3V.
CRCW040210K0FKED
Vishay Intertechnology
Vishay Intertechnology's CRCW040210K0FKED is a fixed resistor with 10000 ohm resistance, 1% tolerance, and 0.063 W power dissipation. Ideal for surface mount applications in electronics due to its compact SMT package style and high operating temperature range of -55 to 155 °C.
BAV99W-7-F
Diodes Incorporated
Diodes Incorporated BAV99W-7-F is a fast recovery rectifier diode with 2 elements in series connected, center tap configuration. It has a max reverse recovery time of 0.004 us and can handle a max output current of 0.15 A. Ideal for applications requiring fast switching capabilities and operating temperatures ranging from -65 to 150 °C.
87832-1420
Molex
87832-1420 by Molex is a 14-contact board connector with 0.079" pitch, suitable for commercial applications. It features matte tin over nickel finish, glass-filled polyamide insulator, and polarization key for easy assembly. Withstanding voltage of 1400VAC and operating temperature range from -55 to 105°C make it reliable for various electronic devices.
LL4148
Lite-on Semiconductor
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
Loras Industries
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
LM317T
Texas Instruments
LM317T by Texas Instruments is an adjustable positive single output standard regulator with a max output voltage of 37V and max input-output voltage differential of 40V. Operating temperature ranges from 0 to 125°C, making it suitable for various applications requiring precise voltage regulation in electronic circuits. With a max output current of 1.5A, this through-hole package regulator is ideal for power supply designs where adjustable voltage levels are needed.
1N4148WS
Dc Components
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
BAV99WT1G
Fairchild Semiconductor
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
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;
2N7002
Silicon Standard
N-CHANNEL; Configuration: SINGLE WITH BUILT-IN DIODE; Surface Mount: NO; Maximum Power Dissipation (Abs): .225 W; Maximum Drain-Source On Resistance: 7.5 ohm; Transistor Element Material: SILICON;
350766-1
TE Connectivity
TE Connectivity 350766-1 is a rectangular power connector with 0.25" mating contact pitch, rated for 600V and operating temperatures from -55 to 105°C. It has a durable design with POLYAMIDE insulator material, suitable for commercial applications requiring secure crimp termination in cable mounting setups.
M39029/56-351
Itt Cannon
CONNECTOR ACCESSORY; MIL Conformity: YES; Terminal Type: WIRE; IEC Conformity: NO; Alternate Contact Sources: ITT CANNON; Associated Military - Specifications: MIL-C-38999;
International Semiconductor
MBR0530T1G
Onsemi
MBR0530T1G by Onsemi is a Schottky rectifier diode with a max forward voltage of 0.375V and output current of 0.5A. It operates b/w -65°C to 125°C, making it suitable for applications requiring high-speed switching in compact electronic devices like smartphones and tablets. The package style is small outline with gull wing terminals for surface mount assembly.
MISM-7R10-15
Littelfuse
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Nominal Resonant Frequency: 14 kHz; Termination Type: SOLDER; Maximum Pull In: 15 AT;
MLRR-4-17-23
MLRR-4-17-23 by Littelfuse is a hermetically sealed SPST dry reed switch with 17 AT min pull in and 23 AT max pull in. It operates b/w -40 to 125 °C, with a max DC contact current of 1A@200VDC. Ideal for applications requiring reliable switching at high temperatures and low power consumption.
MDSM-DTR-25-30
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: CHANGE-OVER; Body Height: 2.54 mm; Maximum Pull In: 30 AT; AC Maximum Rating R Load (Contact): .18A@120VAC;
MDSM-10B-15-20
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; DC Maximum Rating R Load (Contact): .5A@200VDC; Minimum Operating Temperature: -40 Cel; Maximum Operating Temperature: 125 Cel;
MDSR-10
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Termination Type: SOLDER; Minimum Operating Temperature: -40 Cel; Maximum DC Contact Current: .5 A;
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;
MDSR-7-20-25AT
DRY REED SWITCH; Maximum Operating Temperature: 125 Cel; Minimum Operating Temperature: -40 Cel;
DRS-50-47-58
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Termination Type: SOLDER; Nominal Resonant Frequency: .85 kHz; Maximum AC Contact Voltage: 280 V;
DRR-129-57-68AT
DRY REED SWITCH; Manufacturer Series: DRR-129;
MLSM-4R-17-23
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Maximum Operating Temperature: 125 Cel; Additional Features: STANDARDS: ATEX; CUL; UL; Sealing: HERMETICALLY SEALED;
MDSM-DTR-15-20
MDSM-DTR-15-20 by Littelfuse is a hermetically sealed dry reed switch with a max pull-in of 30 AT and min pull-in of 15 AT. It has a change-over switch function, operates b/w -40 to 125 °C, and can handle 0.18A@120VAC AC contact current. Ideal for applications requiring reliable switching in compact spaces.
DRT-DTH-50-65
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: CHANGE-OVER; DC Maximum Rating R Load (Contact): 1.5A@500VDC; Minimum Operating Temperature: -20 Cel; Packing Method: BULK;
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;
DRS-DTH-50-55
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPDT; Nominal Resonant Frequency: 2.75 kHz; Packing Method: BULK; Maximum Operating Temperature: 125 Cel;
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.
59165-1-T-00-A
DRY REED SWITCH;
MLSM-3
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Body Height: 3 mm; Maximum Pull In: 23 AT; Sealing: HERMETICALLY SEALED;
CT10-1530-G1
Coto Technology
CT10-1530-G1 by Coto Technology is a SPST DRY REED SWITCH with 30 AT pull in, 3 AT drop-out, and 15 AT min pull in. Ideal for applications requiring reliable magnetic reed switches in environments with temperatures ranging from -40 to 125°C.
DRR-129-62-68
DRY REED SWITCH; Terminal Finish: Tin (Sn); JESD-609 Code: e3;
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;
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MDSM-4R-12-18
MDSM-4R-12-18 by Littelfuse is a magnetic reed switch with a max pull in of 18 AT and min pull in of 12 AT. It is hermetically sealed and has a switch function of SPST. This switch is commonly used for surface mount applications requiring dry reed switches.
MDSM-DTR-20-25
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: CHANGE-OVER; Nominal Resonant Frequency: 11 kHz; Maximum AC Contact Current: .18 A; Body Height: 2.54 mm;
MDSM-DTB-15-20
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: CHANGE-OVER; Minimum Operating Temperature: -40 Cel; Maximum DC Contact Current: .25 A; Maximum Operating Temperature: 125 Cel;
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;
MDSM-10B-10-15
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Packing Method: BULK; Minimum Operating Temperature: -40 Cel; Maximum AC Contact Voltage: 140 V;
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;
MDSM-10B-20-25
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Sealing: HERMETICALLY SEALED; Packing Method: BULK; Body Length/Diameter: 1.8 mm;
MDSM-10R-10-15
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Maximum AC Contact Current: .35 A; Maximum Operating Temperature: 125 Cel; Termination Type: SOLDER;
MDSM-10R-10-25
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Maximum AC Contact Voltage: 140 V; Maximum AC Contact Current: .35 A; Nominal Resonant Frequency: 6.5 kHz;
MDSM-10R-15-20
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Maximum Pull In: 20 AT; Sealing: HERMETICALLY SEALED; Maximum DC Contact Voltage: 200 V;
MDSM-10R-20-25
The Littelfuse MDSM-10R-20-25 is a hermetically sealed SPST dry reed switch with a max pull-in of 25 AT and min pull-in of 20 AT. It operates b/w -40 to 125 °C, suitable for applications requiring reliable switching at up to 0.35A@140VAC or 0.5A@200VDC.
MDSM-4
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-RIGHT ANGLE; Switch Function: SPST; Maximum Operating Temperature: 125 Cel; Nominal Resonant Frequency: 3.9 kHz; Sealing: HERMETICALLY SEALED;
MDSM-4R-17-23
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; AC Maximum Rating R Load (Contact): .35A@140VAC; Maximum AC Contact Voltage: 140 V; JESD-609 Code: e3;
MDSM-4X12-18
MDSM-DT
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-RIGHT ANGLE; Switch Function: SPDT; Maximum Operating Temperature: 125 Cel; Body Length/Diameter: 2.54 mm; Manufacturer Series: MDSM-DT;
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: CHANGE-OVER; AC Maximum Rating R Load (Contact): .18A@120VAC; Terminal Finish: TIN; Maximum DC Contact Voltage: 175 V;
Hamlin Electronics Europe
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-RIGHT ANGLE; Switch Function: SPST; Nominal Resonant Frequency: 3.9 kHz; Termination Type: SOLDER; Body Length/Diameter: 2.28 mm;
Supply Digital Components
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