Semiconductors
Passive Components
Sensors
Power
Optoelectronics
Littelfuse Product Lines
Semiconductors
Diodes & Rectifiers
- • Rectifiers - Arrays (105)
- • Rectifiers - Single (128)
- • Zener Diodes - Single (1)
Power Management ICs
Thyristors
- • DIACs, SIDACs (246)
- • SCRs (875)
- • SCRs - Modules (1)
- • TRIACs (1,365)
Transistors
- • FETs, MOSFETs - Single (5)
- • IGBTs - Modules (48)
- • IGBTs - Single (22)
Passive Components
Capacitors
- • Mica and PTFE Capacitors (1)
Filters
- • Common Mode Chokes (61)
Inductors, Coils, Chokes
- • Fixed Inductors (28)
Potentiometers, Variable Resistors
- • Rotary Potentiometers, Rheostats (17)
- • Scale Dials (6)
Resistors
- • Specialized Resistors (8)
Sensors
Specialized Sensors
- • Current Sensors (2)
- • Float, Level Sensors (100)
- • Flow Sensors (2)
- • Position Sensors - Angle, Linear Position Measuring (7)
- • Shock Sensors (7)
Temperature Sensors
- • NTC Thermistors (556)
- • PTC Thermistors (8)
- • RTD (Resistance Temperature Detector) (25)
- • Thermocouple, Temperature Probes (1)
- • Thermostats - Mechanical (37)
Magnetic Sensors
- • Position, Proximity, Speed (Modules) (3,028)
- • Magnets - Multi Purpose (13)
- • Magnets - Sensor Matched (18)
Power
Circuit Protection
- • Circuit Breakers (216)
- • Electrical, Specialty Fuses (4,830)
- • Fuseholders (2,190)
- • Fuses (11,333)
- • Gas Discharge Tube Arresters (GDT) (1,184)
- • Ground Fault Circuit Interrupter (GFCI) (16)
- • Inrush Current Limiters (ICL) (43)
- • Lighting Protection (140)
- • PTC Resettable Fuses (1,697)
- • TVS - Diodes (8,987)
- • TVS - Mixed Technology (302)
- • TVS - Thyristors (2,002)
- • TVS - Varistors, MOVs (7,464)
- • Thermal Cutoffs (Thermal Fuses) (2)
Switches
- • Disconnect Switch Components (30)
- • Keylock Switches (61)
- • Magnetic, Reed Switches (554)
- • Pushbutton Switches (128)
- • Rocker Switches (128)
- • Rotary Switches (1)
- • Selector Switches (63)
- • Snap Action, Limit Switches (25)
- • Toggle Switches (100)
Transformers
- • Current Sense Transformers (28)
Relays
- • Automotive Relays (9)
- • Power Relays, Over 2 Amps (61)
- • Reed Relays (114)
- • Relay Sockets (15)
- • Safety Relays (4)
- • Solid State Relays (15)