Surface Mount Thermistors

Littelfuse Surface Mount Thermistors offer a 0.7Ω to 500,000Ω resistance range and a maximum operating range of -55°C to +220°C. The Littelfuse Surface Mount Thermistors portfolio includes surface mount end-banded chip thermistors, leadless top/bottom terminated chip thermistors, inrush current limiters (power thermistors), and more.

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Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
B Parameter
Resistance
Power Rating
Tolerance
Mounting Style
Termination Style
Minimum Operating Temperature
Maximum Operating Temperature
Package/Case
Diameter
Length
Width
Height
Packaging
Littelfuse NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR
Datasheet
Non-Stocked
Min.: 10,000
Mult.: 10,000

RA 4250 K 100 kOhms 40 mW 5 % PCB Mount SMD/SMT - 40 C + 125 C 0402 (1005 metric) 0.0394 in 0.0197 in 0.208 in
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 200K OHM 5% 0402 SMT
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

RA 4250 K 200 kOhms 40 mW 5 % PCB Mount SMD/SMT - 40 C + 125 C 0402 (1005 metric) 0.0394 in 0.0197 in 0.028 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 30K OHM 5% 0402 SMT
Datasheet
Non-Stocked
Min.: 10,000
Mult.: 10,000

RA 4000 K 30 kOhms 40 mW 5 % PCB Mount SMD/SMT - 40 C + 125 C 0402 (1005 metric) 0.0394 in 0.0197 in 0.028 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 47K OHM 5% 0402 SMT
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

RA 4000 K 47 kOhms 40 mW 5 % PCB Mount SMD/SMT - 40 C + 125 C 0402 (1005 metric) 0.0394 in 0.0197 in 0.028 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 200K OHM 5% 0603 SMT
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

RB 4250 K 200 kOhms 150 mW 5 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 0.063 in 0.0315 in 0.0395 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 30K OHM 5% 0603 SMT
Datasheet
Non-Stocked
Min.: 4,000
Mult.: 1

RB 4000 K 30 kOhms 150 mW 5 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 0.063 in 0.0315 in 0.0395 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 50K OHM 5% 0603 SMT
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

RB 4000 K 50 kOhms 150 mW 5 % PCB Mount SMD/SMT - 40 C + 125 C 0603 (1608 metric) 0.063 in 0.0315 in 0.0395 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 20K OHM 10% MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SB 4140 K 20 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.252K OHM MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SB 3892 K 2.252 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.5K OHM 10% MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SB 3892 K 2.5 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.7K OHM 10% MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SB 3892 K 2.7 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 3K OHM 10% MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SB 3892 K 3 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

3892 K 5 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MELF-2 0.096 in 0.135 in 0.06 in 0.096 in
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1K OHM 10% MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SM 3263 K 1 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MiniMELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K OHM 10% MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SM 3575 K 10 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MiniMELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 0.5C MELF
Datasheet
Non-Stocked
Min.: 5,000
Mult.: 1
SM 3892 K 100 kOhms 0.5 C PCB Mount SMD/SMT - 55 C + 220 C 0.06 in 0.135 in
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 100K OHM 10% MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SM 4140 K 100 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MiniMELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.186K OHM MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SM 3320 K 2.186 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MiniMELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 2.5K OHM 10%
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SM 2941 K 2.5 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MiniMELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 250K OHM 10% MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SM 4140 K 250 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MiniMELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 500K OHM 10%
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SM 4140 K 500 kOhms 10 % PCB Mount SMD/SMT - 55 C + 220 C MiniMELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 20K OHM 1C MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

WM 3892 K 20 kOhms 1 C PCB Mount SMD/SMT - 55 C + 220 C MiniMELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 50K OHM 1C MELF
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

WM 3892 K 50 kOhms 1 C PCB Mount SMD/SMT - 55 C + 220 C MiniMELF-2 0.06 in 0.135 in Bulk
Littelfuse NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO
Datasheet
Non-Stocked

KR 4150 K 50 kOhms 300 mW 5 % PCB Mount SMD/SMT - 40 C + 125 C 0805 (2012 metric) 0.0787 in 0.0492 in 0.05 in