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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DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum AC Contact Current: .7 A; Maximum AC Contact Voltage: 140 V; Maximum DC Contact Voltage: 200 V;
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Magnetic Reed Switches MLRR-4-27-38 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:
Mounting Feature:
Maximum Operating Temperature:
Minimum Operating Temperature:
Packing Method:
Maximum Pull In:
Minimum Pull In:
Nominal Resonant Frequency:
Sealing:
Switch Function:
Switch Type:
Termination Type:
MLRR-4-27-38 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.
SS14
Vishay Semiconductors
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
SMBJ18CA
KYOCERA AVX
TRANS VOLTAGE SUPPRESSOR DIODE; Terminal Position: DUAL; Terminal Form: C BEND; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
2N2222A
Raytheon Semiconductor
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 250 MHz; Minimum DC Current Gain (hFE): 100; Maximum Turn On Time (ton): 35 ns;
Pro-an Electronic
TRANS VOLTAGE SUPPRESSOR DIODE; Surface Mount: YES; Maximum Clamping Voltage: 29.2 V; Polarity: BIDIRECTIONAL; Nominal Breakdown Voltage: 21.05 V; Maximum Repetitive Peak Reverse Voltage: 18 V;
2N7002
Plessey Semiconductors Discrete Components Div
Other Transistors;
Allegro MicroSystems
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
1N4148
Microchip Technology
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
SMMBT2222ALT1G
Onsemi
SMMBT2222ALT1G by Onsemi is a NPN BJT transistor with 3 terminals, 0.6A IC, and 40V VCE. It has a hFE of 75, fT of 300MHz, and operates up to 150°C. Ideal for small signal applications in automotive electronics due to AEC-Q101 compliance.
M39029/58360
Souriau-sunbank Connection Technologies
Souriau-sunbank's M39029/58360 is a MIL-Spec backshell with CRIMP contact type and male gender. It conforms to MIL-DTL-38999 standards, mates with M39029/56348 contacts, and requires M81969/14-01 insertion tools. Ideal for military applications requiring reliable crimp terminals.
LM555CM
Texas Instruments
LM555CM by Texas Instruments is an Analog Waveform Generation IC with a supply voltage range of 4.5V to 16V and max operating temperature of 70°C. It comes in a small outline package, suitable for applications requiring pulse generation or rectangular waveform outputs. With surface mount capability and low supply current of 15mA, it is ideal for commercial-grade electronic circuits.
STM32H743BIT6
STMicroelectronics
STM32H743BIT6 by STMicroelectronics is a 32-bit microcontroller with Cortex-M7 CPU, 208 terminals, and 1085440 bytes of RAM. It features 2 DAC channels, 32 ADC channels, and operates at a max clock frequency of 48 MHz. Ideal for industrial applications requiring high-speed processing and extensive peripheral connectivity.
OHN3140U
Optek Technology
MAGNETIC FIELD SENSOR,HALL EFFECT; Mounting Feature: THROUGH HOLE MOUNT; No. of Terminals: 3; Output Type: ANALOG CURRENT; Package Shape or Style: RECTANGULAR; Output Range: 25mA;
STM32F405RGT6TR
STM32F405RGT6TR by STMicroelectronics is a 32-bit microcontroller with 64 terminals, operating at a max frequency of 26 MHz. It features DAC and ADC channels, along with DMA support. Ideal for industrial applications requiring low power consumption and high-speed processing capabilities.
First Components International
RECTIFIER DIODE; Surface Mount: NO; No. of Phases: 1; Maximum Operating Temperature: 200 Cel; Config: SINGLE; No. of Elements: 1;
NC7WZ07P6X
Fairchild Semiconductor
BUFFER; Temperature Grade: INDUSTRIAL; Terminal Form: GULL WING; No. of Terminals: 6; Package Code: TSSOP; Package Shape: RECTANGULAR;
LM555CN
Intersil
PULSE; RECTANGULAR; Temperature Grade: COMMERCIAL; No. of Terminals: 8; Package Code: DIP; Package Shape: RECTANGULAR; Surface Mount: NO;
LL4148
Diodes Incorporated
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
SN65HVD230DR
SN65HVD230DR by Texas Instruments is a BICMOS technology interface circuit with 1Mbps data rate, suitable for industrial applications. It operates at 3.3V, has 8 terminals in a small outline package, and can withstand temperatures from -40 to 85°C.
FT232RL-TUBE
FTDI
FTDI's FT232RL-TUBE is a bus controller with 28 terminals, operating at 3.3-5.25V. It supports USB, VBUS, and UART interfaces with a data transfer rate of 60MBps. Ideal for industrial applications requiring RS232/RS422/RS485 compatibility in compact designs due to its small outline package style.
LM358D-T
Philips Semiconductors
OPERATIONAL AMPLIFIER; Temperature Grade: COMMERCIAL; Terminal Form: GULL WING; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR;
DRS-50-77-83
Littelfuse
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;
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;
59165-1-S-00-A
Hamlin Electronics Europe
DRY REED SWITCH;
MISM-3V1R-6-10
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Maximum AC Contact Voltage: 120 V; Body Length/Diameter: 1.8 mm; Maximum AC Contact Current: .18 A;
MDCG-4-17-28AT
DRY REED SWITCH; Manufacturer Series: MDCG-4;
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;
MDRR-DT-20-25-F
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: CHANGE-OVER; Minimum Pull In: 20 AT; Packing Method: BULK; DC Maximum Rating R Load (Contact): 0.25A@175VDC;
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;
DRT-DTH
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPDT; Sealing: HERMETICALLY SEALED; Body Length/Diameter: 5.33 mm; Maximum DC Contact Voltage: 500 V;
MRPR-20-37-43
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum DC Contact Current: 1.5 A; Maximum AC Contact Voltage: 265 V; Minimum Operating Temperature: -20 Cel;
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;
59166-1-U-00-C
DRY REED SWITCH; Mounting Feature: SURFACE MOUNT-STRAIGHT; Switch Function: SPST; Maximum AC Contact Voltage: 140 V; Termination Type: SOLDER; Maximum Pull In: 25 AT;
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.
59045-1-S-00-0
Littelfuse 59045-1-S-00-0 is a SPST DRY REED SWITCH with max pull in of 20AT and min pull in of 15AT. Hermetically sealed, it operates b/w -40 to 105 °C, suitable for applications requiring reliable switching at up to 200VDC or 140VAC.
DRT-DTH-50-60
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: CHANGE-OVER; Nominal Resonant Frequency: 2.75 kHz; Minimum Operating Temperature: -20 Cel; Body Height: 39.67 mm;
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;
MDRR-DT-25-35-U
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: CHANGE-OVER; Maximum Pull In: 35 AT; Maximum DC Contact Voltage: 175 V; Maximum DC Contact Current: .25 A;
MDSR-10-10-15AT
DRY REED SWITCH; Manufacturer Series: MDSR-10;
DRR-129-57-63AT
DRY REED SWITCH; Manufacturer Series: DRR-129;
MDRR-DT-25-30-F
Littelfuse MDRR-DT-25-30-F is a CHANGE-OVER magnetic reed switch with 25 AT min and 30 AT max pull in. It operates b/w -40 to 125 °C, with DC contact current of 0.25 A at 175 V. Ideal for applications requiring reliable switching in harsh environments.
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MLRR-3
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Minimum Pull In: 17 AT; Maximum DC Contact Current: 1 A; Body Height: 15.24 mm;
MLRR-4
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Minimum Operating Temperature: -40 Cel; Termination Type: SOLDER; Maximum DC Contact Current: 1 A;
MLRR-4-17-23
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Body Height: 15.24 mm; Maximum Pull In: 23 AT; Maximum DC Contact Current: 1 A;
MLRR-4-17-28
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum Pull In: 28 AT; AC Maximum Rating R Load (Contact): .7A@140VAC; Maximum DC Contact Voltage: 200 V;
MLRR-4-22-28
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Body Length/Diameter: 2.66 mm; Maximum DC Contact Current: 1 A; Minimum Operating Temperature: -40 Cel;
MLRR-4-22-33
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Nominal Resonant Frequency: 6.25 kHz; AC Maximum Rating R Load (Contact): .7A@140VAC; Body Length/Diameter: 2.66 mm;
MLRR-4-27-33
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Maximum Pull In: 33 AT; Minimum Operating Temperature: -40 Cel; Packing Method: BULK;
MLRR-4-32-38
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Sealing: HERMETICALLY SEALED; AC Maximum Rating R Load (Contact): .7A@140VAC; Termination Type: SOLDER;
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Manufacturer Series: MLRR-3; Sealing: HERMETICALLY SEALED; Minimum Operating Temperature: -40 Cel;
DRY REED SWITCH; Mounting Feature: THROUGH HOLE-STRAIGHT; Switch Function: SPST; Minimum Operating Temperature: -40 Cel; Termination Type: SOLDER; Maximum Operating Temperature: 125 Cel;
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