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Superior SMD PTC Thermistors

TDK Superior SMD PTC thermistors for limit temperature measurement are available in case sizes 0805, 0603, and 0402. Compared to the standard series, TDK Superior thermistors employ a more homogeneous ceramic material that enables them to exhibit excellent performance in reliability tests and be reflow and wave-soldered at temperatures of up to +280°C. These TDK SMD PTC thermistors are qualified based on AEC-Q200 Rev-C and satisfy the rigorous requirements for use in automotive applications involving frequent and rapid temperature changes. The B59721A in case size 0805 has response temperatures from +70° to +130°C in steps of 10K and a 680Ω rated resistance. The response temperatures of the B59641A (0603) and B59421A (0402) are from +75° to +145°C and +75° to +135°C respectively, also in steps of 10K and feature a rated resistance of 470Ω.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.
PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 100C Temperature Sensor B59721A100A62 TDK 1: £0.33 20,000In Stock	Mfr. Part No. B59721A100A62 Mouser Part No 871-B59721A100A62	TDK	PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 100C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	20,000In Stock	Cut Tape £0.33 £0.313 £0.292 £0.277 View Reel £0.205 £0.265 £0.237 £0.224 £0.205 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 120C Temperature Sensor B59701A120A62 TDK 1: £0.526 1,439In Stock	Mfr. Part No. B59701A120A62 Mouser Part No 871-B59701A120A62	TDK	PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 120C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	1,439In Stock	Cut Tape £0.526 £0.497 £0.464 £0.443 View Reel £0.332 £0.423 £0.376 £0.36 £0.332 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C B59008C0100A040 TDK 1: £1.09 221In Stock	Mfr. Part No. B59008C0100A040 Mouser Part No 871-B59008C100A40	TDK	PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	221In Stock	£1.09 £1.05 £0.978 £0.943 View £0.89 £0.818 £0.739 £0.681	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors T=5K 130deg C B59008C0130A040 TDK 1: £1.15 1,022In Stock	Mfr. Part No. B59008C0130A040 Mouser Part No 871-B59008C130A40	TDK	PTC (Positive Temperature Coefficient) Thermistors T=5K 130deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	1,022In Stock	£1.15 £1.10 £1.04 £0.995 View £0.943 £0.856 £0.751	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors T=5K 80deg C B59008C0080A040 TDK 1: £1.09 769In Stock	Mfr. Part No. B59008C0080A040 Mouser Part No 871-B59008C80A40	TDK	PTC (Positive Temperature Coefficient) Thermistors T=5K 80deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	769In Stock	£1.09 £1.05 £0.978 £0.943 View £0.89 £0.834 £0.759 £0.726	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors T=5K 90deg C B59008C0090A040 TDK 1: £1.09 1,223In Stock	Mfr. Part No. B59008C0090A040 Mouser Part No 871-B59008C90A40	TDK	PTC (Positive Temperature Coefficient) Thermistors T=5K 90deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	1,223In Stock	£1.09 £1.05 £0.978 £0.943 View £0.834 £0.803 £0.721	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors 0402 470ohms 95C Temperature Sensor B59421A95A62 TDK 1: £0.292 26In Stock	Mfr. Part No. B59421A95A62 Mouser Part No 871-B59421A95A62	TDK	PTC (Positive Temperature Coefficient) Thermistors 0402 470ohms 95C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	26In Stock	Cut Tape £0.292 £0.271 £0.239 £0.228 Reel £0.169 View £0.203 £0.193 £0.175 £0.163 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 75C Temperature Sensor B59601A75A62 TDK 1: £0.39 3,576In Stock	Mfr. Part No. B59601A75A62 Mouser Part No 871-B59601A75A62	TDK	PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 75C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	3,576In Stock	Cut Tape £0.39 £0.367 £0.342 £0.325 View Reel £0.226 £0.31 £0.279 £0.265 £0.226 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 105C Temperature Sensor B59641A0105A062 TDK 1: £0.248 4,238In Stock	Mfr. Part No. B59641A0105A062 Mouser Part No 871-B59641A0105A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 105C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	4,238In Stock	Cut Tape £0.248 £0.234 £0.207 £0.196 Reel £0.149 View £0.175 £0.155 £0.141 £0.14 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 125C Temperature Sensor B59641A0125A062 TDK 1: £0.308 304In Stock	Mfr. Part No. B59641A0125A062 Mouser Part No 871-B59641A0125A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 125C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	304In Stock	Cut Tape £0.308 £0.285 £0.252 £0.235 Reel £0.177 View £0.207 £0.19 £0.163 £0.162 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 135C Temperature Sensor B59641A0135A062 TDK 1: £0.285 6,203In Stock	Mfr. Part No. B59641A0135A062 Mouser Part No 871-B59641A0135A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 135C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	6,203In Stock	Cut Tape £0.285 £0.269 £0.238 £0.226 Reel £0.172 View £0.201 £0.18 £0.164 £0.162 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC (Positive Temperature Coefficient) Thermistors 0402 470ohms 85C Temperature Sensor B59421A0085A062 TDK 1: £0.292 Lead-Time 16 Weeks	Mfr. Part No. B59421A0085A062 Mouser Part No 871-B59421A0085A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 0402 470ohms 85C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	Lead-Time 16 Weeks	Cut Tape £0.292 £0.271 £0.239 £0.228 Reel £0.169 View £0.203 £0.193 £0.175 £0.163 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 110C Temperature Sensor B59721A110A62 TDK 1: £0.33 7,500Expected 03/11/2026	Mfr. Part No. B59721A110A62 Mouser Part No 871-B59721A110A62	TDK	PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 110C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	7,500Expected 03/11/2026	Cut Tape £0.33 £0.313 £0.292 £0.277 View Reel £0.202 £0.265 £0.237 £0.224 £0.202 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 145C Temperature Sensor B59641A145A62 TDK 1: £0.285 6,900Expected 02/11/2026	Mfr. Part No. B59641A145A62 Mouser Part No 871-B59641A145A62	TDK	PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 145C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	6,900Expected 02/11/2026	Cut Tape £0.285 £0.269 £0.238 £0.226 Reel £0.157 View £0.201 £0.163 £0.15 £0.148 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 130C Temperature Sensor B59721A0130A062 TDK 1: £0.33 3,991Expected 03/11/2026	Mfr. Part No. B59721A0130A062 Mouser Part No 871-B59721A0130A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 130C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	3,991Expected 03/11/2026	Cut Tape £0.33 £0.313 £0.292 £0.277 View Reel £0.191 £0.265 £0.237 £0.223 £0.191 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC (Positive Temperature Coefficient) Thermistors T=5K 140deg C B59008C0140A040 TDK 1: £1.63 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. B59008C0140A040 Mouser Part No 871-B59008C140A40	TDK	PTC (Positive Temperature Coefficient) Thermistors T=5K 140deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	Non-Stocked Lead-Time 16 Weeks	£1.63 £1.26 £1.05 £1.03 View £0.934 £0.818 £0.766 £0.713	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors 404A 60A 40 3X16 PTC Thermistor B59404B0060A040 TDK 1: £2.23 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. B59404B0060A040 Mouser Part No 871-B59404B0060A040	TDK	PTC (Positive Temperature Coefficient) Thermistors 404A 60A 40 3X16 PTC Thermistor Learn More about TDK epcos superior ptc thermistors	Datasheet	Non-Stocked Lead-Time 18 Weeks	£2.23 £2.12 £1.98 £1.89 View £1.83 £1.63 £1.53 £1.41	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors 0402 470ohms 75C Temperature Sensor B59421A75A62 TDK 10,000: £0.169 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. B59421A75A62 Mouser Part No 871-B59421A75A62	TDK	PTC (Positive Temperature Coefficient) Thermistors 0402 470ohms 75C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel £0.169 £0.163	Min.: 10,000 Mult.: 10,000 : 10,000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 125C Temperature Sensor B59601A0125A062 TDK 1: £0.39 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. B59601A0125A062 Mouser Part No 871-B59601A0125A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 125C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape £0.39 £0.367 £0.342 £0.325 View Reel £0.249 £0.31 £0.279 £0.265 £0.249 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 135C Temperature Sensor B59601A0135A062 TDK 4,000: £0.226 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. B59601A0135A062 Mouser Part No 871-B59601A0135A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 135C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel £0.226	Min.: 4,000 Mult.: 4,000 : 4,000
PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 140C Temperature Sensor B59701A0140A062 TDK 4,000: £0.318 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. B59701A0140A062 Mouser Part No 871-B59701A0140A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 140C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel £0.318	Min.: 4,000 Mult.: 4,000 : 4,000
PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 130C Temperature Sensor B59701A130A62 TDK 4,000: £0.324 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. B59701A130A62 Mouser Part No 871-B59701A130A62	TDK	PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 130C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel £0.324	Min.: 4,000 Mult.: 4,000 : 4,000
Circuit Protection Kits Design Kit PTC Limit Temp Sensing B59001Z0999A099 TDK Non-Stocked Lead-Time 5 Weeks Factory Special Order	Mfr. Part No. B59001Z0999A099 Mouser Part No 871-B59001Z0999A099 Factory Special Order	TDK	Circuit Protection Kits Design Kit PTC Limit Temp Sensing Learn More about TDK epcos kits	Datasheet	Non-Stocked Lead-Time 5 Weeks		Request a Quote

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