Product catalog: SMD NTC thermistors

NTC (Negative Temperature Coefficient) thermistors are thermally sensitive resistors whose resistance decreases when the temperature increases.

Their resistance changes between 2% and 6% per Kelvin temperature change, which is significantly more than the resistance of metallic conductors or silicon-based temperature sensors.

Thanks to their excellent long-term stability, sensitivity, and accuracy, NTC thermistors are the preferred solution for temperature measurement and compensation in automotive, commercial, and industrial applications.

Quick search for NTC thermistors

Explore TDK’s powerful search interface to pinpoint the ideal NTC thermistor for your application. Easily filter products by key parameters such as:

Size, thickness
Resistance and tolerance
B Values and tolerance
Max. operating temperature
and more ...

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Features & Benefits


Features	Automotive series (B57*V5)	Standard series (B57*V2)
Tight tolerances down to	R₂₅ ± 0.5%	R₂₅ ± 0.5%
Tight tolerances down to	B ± 0.5%	B ± 0.5%
Accurate temperature sensing [°C]	+150 … +175	+125
Qualified based on AEC-Q200 with extended stress level	✔	✔
Portfolio includes a wide range of case sizes (EIA 0402 … 1206)	✔	✔
Excellent long-term aging stability in high-temperature, high-humidity environments	✔	✔
Soft termination available for increased robustness against mechanical stress by board bending and thermal shocks	✔	on demand
UL compliant (E69802)	✔	✔
Short response time	✔	✔
RoHS compliant, 100% Pb-free	✔	✔

SMD NTC series with high temperature up to 175 °C

Features:

Accurate temperature measurement from -40° C to 175°C
B values specified between 25 °C and 100 °C for the highest accuracy at the typical working temperature
Minimized resistance drift after the soldering process
100% lead-free and RoHS compliant

Applications

xEV, battery management systems, ECUs
Power modules
Threshold and DCB & PCB temperature measurement
Heat sink temperature monitoring

Portfolio

Ordering code	R₂₅ [kΩ]	DR_R/R_R [%]	B_25/50 [K]	B_25/85 [K]	B_25/100 [K]	EIA
B57621C5502H062	5	± 3	3375	3420	3455 ± 2%	1206
B57432V5502A262	5	± 3	3375	3420	3455 ± 2%	0805
B57432V5103A262	10	± 1	3380	3435	3455 ± 1%	0805
B57332V5103A260	10	± 1	3380	3435	3455 ± 1%	0603
B57232V5103A260	10	± 1	3380	3435	3455 ± 1%	0402

SMD NTC series with soft termination

Features

High resistance to mechanical stress by resin layers
Enhanced mechanical stress robustness for special substrate combinations
Increased robustness against mechanical stress by board bending and thermal shocks, compared to standard termination
Accurate temperature measurement from -40 °C to +150 °C
Tight R and B tolerances

Applications

Charging and temperature control of battery packs and BMS
Thermal protection for power semiconductors (GaN/SiC) in power modules
LED lighting
DC-DC converter, on-board charger, inverter
Electronic control units (ECUs)

Datasheet

Typical applications

Automotive

Battery management systems
ADAS, ECUs
DC/DC converters, inverters
On-board charger
Thermal protection of semiconductors (GaN/SiC) in power modules
LED lighting

Industry

Industrial automation
Heating and air-conditioning
HVAC, thermostats, Smart metering
Lighting
Battery management systems (BMS) and energy storage system (ESS)
Security and building automation

Consumer

Household appliances
Healthcare

Power modules

Fast switching wide bandgap (WBG) semiconductors like SiC and GaN

ICT

Smartphones
Wearable devices
Displays

Artificial intelligence

AI server
Data center
AI power supplies

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	PDF	Remarks	Case size	Resistance (at 25 °C) (kOhm)	Type
				10	B57432V5
				5	B57432V5
				10	B57432V5
				10	B57432V5
				4.7 - 100	B57232V5 - B57459V5
				5	B57432V6
				47	B57459V6
				5 - 47	B57332V6, B57342V6, B57343V6, B57359V6, B57621C6
				1 - 470	B57221V2 - B57471V2
				5	B57621C5
				1 - 10	B57621C5

SMD NTC Thermistors

The preferred solution for temperature measurement and compensation for automotive and general use

Quick search for NTC thermistors

Features & Benefits

SMD NTC series with high temperature up to 175 °C

SMD NTC series with soft termination

Typical applications

Automotive

Industry

Consumer

Power modules

ICT

Artificial intelligence

Get data sheets and search

Product resources

Presentation

Multilayer SMD NTC thermistors

Tools

NTC R/T Calculation 5.0 - Web-based Application

NTC Thermistor Library for PSpice

NTC Thermistor Class Library for Python 3 or C++

Product Center

TDK SIM CAL Studio

Explore more

Power Modules

Thermal Management Solutions for BEVs

Application Note

How to Use Temperature Protection Devices: Chip NTC Thermistors

Application Note

Temperature sensing of LED Flash with NTC Thermistor

Selection Guide

Chip NTC Thermistors

Product Center

Chip NTC Thermistors (Sensor)

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Product Inquiry

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Product Notice

Resources for Sensors

Environmental Information

General information