Littelfuse

Discover how Littelfuse is at the forefront of electrical safety and efficiency, providing essential circuit protection solutions across various industries.
HOT Product
Integrated Circuits (ICs)
571239 items
Audio Special Purpose  (1505)
Clock/Timing  (50097)
Embedded  (130229)
Interface  (51675)
Linear  (44892)
Logic  (61900)
Power Management (PMIC)  (228339)
Specialized ICs  (2602)
Discrete Semiconductor Products
247908 items
Diodes  (154564)
Bridge Rectifiers (7481)
Rectifiers (67458)
Zener (75893)
Power Driver Modules  (1292)
Thyristors  (2546)
Bridge Rectifiers (7481)
Rectifiers (67458)
Zener (75893)
Transistors  (89506)
Bridge Rectifiers (7481)
Rectifiers (67458)
Zener (75893)
RF and Wireless
15950 items
RF Misc ICs and Modules  (3292)
RF Transceiver ICs  (4612)
RF Transceiver Modules and Modems  (7314)
RFID Transponders, Tags  (732)
Circuit Protection
301709 items
Circuit Breakers  (119514)
Electrical, Specialty Fuses  (19287)
Fuseholders  (6514)
Fuses  (25148)
Gas Discharge Tube Arresters (GDT)  (4226)
Ground Fault Circuit Interrupter (GFCI)  (810)
Inrush Current Limiters (ICL)  (1296)
Lighting Protection  (80)
PTC Resettable Fuses  (5860)
Surge Suppression Ics  (565)
Thermal Cutoffs (Thermal Fuses)  (427)
Transient Voltage Suppressors (TVS)  (117982)
Isolators
20466 items
Isolators - Gate Drivers  (3249)
Optoisolators  (17109)
Special Purpose Isolators  (108)
Sensors, Transducers
51932 items
Current Sensors  (3775)
Float, Level Sensors  (1292)
Flow Sensors  (599)
IrDA Transceiver Modules  (154)
Magnetic Sensors  (9899)
Magnets  (2026)
Motion Sensors  (3492)
Angle, Linear Position Measuring  (5936)
Shock Sensors  (67)
Solar Cells  (506)
Temperature Sensors  (24186)
Optoelectronics
41438 items
Panel Indicators, Pilot Lights  (41438)
Relays
68293 items
Automotive Relays  (2119)
Contactors (Electromechanical)  (12604)
Power Relays, Over 2 Amps  (28312)
Reed Relays  (1701)
Relay Sockets  (2227)
Safety Relays  (1410)
Signal Relays, Up to 2 Amps  (9042)
Solid State Relays  (10878)
Transformers
16596 items
Current Sense Transformers  (1445)
Power Transformers  (7193)
Pulse Transformers  (7958)
Capacitors
133685 items
Aluminum Electrolytic Capacitors  (131351)
Capacitor Networks, Arrays  (2334)
Resistors
1061709 items
Chip Resistor - Surface Mount  (1060854)
Specialized Resistors  (855)
Connectors, Interconnects
2967794 items
Circular Connectors  (2582207)
Circular Connector Assemblies (1950137)
Circular Connector Assemblies (1950137)
Circular Connector Contacts (4347)
Backshells and Cable Clamps (47545)
D-Sub, D-Shaped Connectors  (138097)
Circular Connector Assemblies (1950137)
Circular Connector Assemblies (1950137)
Circular Connector Contacts (4347)
Backshells and Cable Clamps (47545)
Terminal Blocks  (207928)
Circular Connector Assemblies (1950137)
Circular Connector Assemblies (1950137)
Circular Connector Contacts (4347)
Backshells and Cable Clamps (47545)
Terminal Strips and Turret Boards  (502)
Terminals  (39060)
Circular Connector Assemblies (1950137)
Circular Connector Assemblies (1950137)
Circular Connector Contacts (4347)
Backshells and Cable Clamps (47545)
Switches
419642 items
Disconnect Switch Components  (2560)
Keylock Switches  (20052)
Limit Switches  (28765)
Magnetic, Reed Switches  (1319)
Pushbutton Switches  (230302)
Rocker Switches  (54451)
Rotary Switches  (14155)
Selector Switches  (30830)
Toggle Switches  (37208)
Inductors, Coils, Chokes
182384 items
Fixed Inductors  (182384)
Filters
11561 items
Common Mode Chokes  (9271)
EMI/RFI Filters (LC, RC Networks)  (2290)
Audio Products
5871 items
Alarms, Buzzers, and Sirens  (5871)
Potentiometers, Variable Resistors
11332 items
Rotary Potentiometers, Rheostats  (11219)
Scale Dials  (113)
Power Supplies - Board Mount
293391 items
DC DC Converters  (293391)
Uncategorized
138989 items
Unclassified  (138989)