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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 (CHF) Filter the results in the table by unit price based on your quantity.	Qty.
PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 120C Temperature Sensor B59701A120A62 TDK 1: CHF 0.563 689In 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	689In Stock	Cut Tape CHF 0.563 CHF 0.533 CHF 0.498 CHF 0.475 View Reel CHF 0.356 CHF 0.453 CHF 0.403 CHF 0.386 CHF 0.356 MouseReel Available	Min.: 1 Mult.: 1 : 4’000
PTC (Positive Temperature Coefficient) Thermistors T=5K 100deg C B59008C0100A040 TDK 1: CHF 1.17 291In 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	291In Stock	CHF 1.17 CHF 1.12 CHF 1.05 CHF 1.01 View CHF 0.955 CHF 0.877 CHF 0.792 CHF 0.733	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors T=5K 130deg C B59008C0130A040 TDK 1: CHF 1.24 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	CHF 1.24 CHF 1.18 CHF 1.11 CHF 1.07 View CHF 1.01 CHF 0.917 CHF 0.821	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors T=5K 80deg C B59008C0080A040 TDK 1: CHF 1.17 669In 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	669In Stock	CHF 1.17 CHF 1.12 CHF 1.05 CHF 1.01 View CHF 0.955 CHF 0.894 CHF 0.813 CHF 0.779	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors T=5K 90deg C B59008C0090A040 TDK 1: CHF 1.17 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	CHF 1.17 CHF 1.12 CHF 1.05 CHF 1.01 View CHF 0.894 CHF 0.861 CHF 0.773	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 115C Temperature Sensor B59601A115A62 TDK 1: CHF 0.418 4’975In Stock	Mfr. Part No. B59601A115A62 Mouser Part No 871-B59601A115A62	TDK	PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 115C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	4’975In Stock	Cut Tape CHF 0.418 CHF 0.393 CHF 0.367 CHF 0.348 View Reel CHF 0.242 CHF 0.332 CHF 0.30 CHF 0.284 CHF 0.242	Min.: 1 Mult.: 1 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 75C Temperature Sensor B59601A75A62 TDK 1: CHF 0.418 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 CHF 0.418 CHF 0.393 CHF 0.367 CHF 0.348 View Reel CHF 0.242 CHF 0.332 CHF 0.30 CHF 0.284 CHF 0.242 MouseReel Available	Min.: 1 Mult.: 1 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 105C Temperature Sensor B59641A0105A062 TDK 1: CHF 0.266 3’970In Stock 4’000Expected 2/18/2027	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	3’970In Stock 4’000Expected 2/18/2027	Cut Tape CHF 0.266 CHF 0.251 CHF 0.222 CHF 0.211 Reel CHF 0.161 View CHF 0.188 CHF 0.166 CHF 0.154 CHF 0.15 MouseReel Available	Min.: 1 Mult.: 1 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 115C Temperature Sensor B59641A0115A062 TDK 1: CHF 0.306 2’305In Stock 12’000Expected 2/23/2027	Mfr. Part No. B59641A0115A062 Mouser Part No 871-B59641A0115A062	TDK	PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 115C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	2’305In Stock 12’000Expected 2/23/2027	Cut Tape CHF 0.306 CHF 0.288 CHF 0.256 CHF 0.242 Reel CHF 0.192 View CHF 0.215 CHF 0.204 CHF 0.19 CHF 0.188 MouseReel Available	Min.: 1 Mult.: 1 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 125C Temperature Sensor B59641A0125A062 TDK 1: CHF 0.33 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 CHF 0.33 CHF 0.305 CHF 0.271 CHF 0.252 Reel CHF 0.19 View CHF 0.222 CHF 0.204 CHF 0.169 CHF 0.167 MouseReel Available	Min.: 1 Mult.: 1 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 135C Temperature Sensor B59641A0135A062 TDK 1: CHF 0.306 4’703In 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	4’703In Stock	Cut Tape CHF 0.306 CHF 0.288 CHF 0.256 CHF 0.242 Reel CHF 0.184 View CHF 0.215 CHF 0.193 CHF 0.176 CHF 0.173 MouseReel Available	Min.: 1 Mult.: 1 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 145C Temperature Sensor B59641A145A62 TDK 1: CHF 0.306 6’900In Stock	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	6’900In Stock	Cut Tape CHF 0.306 CHF 0.288 CHF 0.256 CHF 0.242 Reel CHF 0.168 View CHF 0.215 CHF 0.175 CHF 0.161 CHF 0.158 MouseReel Available	Min.: 1 Mult.: 1 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 130C Temperature Sensor B59721A0130A062 TDK 1: CHF 0.378 3’991In Stock	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	3’991In Stock	Cut Tape CHF 0.378 CHF 0.355 CHF 0.331 CHF 0.314 View Reel CHF 0.227 CHF 0.296 CHF 0.262 CHF 0.247 CHF 0.227 MouseReel Available	Min.: 1 Mult.: 1 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0402 470ohms 85C Temperature Sensor B59421A0085A062 TDK 1: CHF 0.314 20’000On Order	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	20’000On Order On Order Ship Dates Mfr. No: B59421A0085A062 Stock: 0 On Order: 10’000 Expected 12/8/2026 10’000 Expected 1/29/2027 Factory Lead Time: 16 Weeks	Cut Tape CHF 0.314 CHF 0.29 CHF 0.256 CHF 0.244 Reel CHF 0.182 View CHF 0.217 CHF 0.207 CHF 0.188 CHF 0.175 MouseReel Available	Min.: 1 Mult.: 1 : 10’000
PTC (Positive Temperature Coefficient) Thermistors T=5K 140deg C B59008C0140A040 TDK 1’000: CHF 0.821 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	CHF 0.821 CHF 0.797	Min.: 1’000 Mult.: 1’000
PTC (Positive Temperature Coefficient) Thermistors 404A 60A 40 3X16 PTC Thermistor B59404B0060A040 TDK 500: CHF 1.75 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	CHF 1.75 CHF 1.64 CHF 1.52	Min.: 500 Mult.: 500
PTC (Positive Temperature Coefficient) Thermistors 0402 470ohms 75C Temperature Sensor B59421A75A62 TDK 10’000: CHF 0.182 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 CHF 0.182 CHF 0.175	Min.: 10’000 Mult.: 10’000 : 10’000
PTC (Positive Temperature Coefficient) Thermistors 0402 470ohms 95C Temperature Sensor B59421A95A62 TDK 1: CHF 0.314 Non-Stocked Lead-Time 16 Weeks	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	Non-Stocked Lead-Time 16 Weeks	Cut Tape CHF 0.314 CHF 0.29 CHF 0.256 CHF 0.244 Reel CHF 0.193 View CHF 0.229 CHF 0.224 CHF 0.213 CHF 0.187 MouseReel Available	Min.: 1 Mult.: 1 : 10’000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 125C Temperature Sensor B59601A0125A062 TDK 4’000: CHF 0.267 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	Reel CHF 0.267	Min.: 4’000 Mult.: 4’000 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0603 470ohms 135C Temperature Sensor B59601A0135A062 TDK 4’000: CHF 0.242 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 CHF 0.242	Min.: 4’000 Mult.: 4’000 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 140C Temperature Sensor B59701A0140A062 TDK 4’000: CHF 0.341 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 CHF 0.341	Min.: 4’000 Mult.: 4’000 : 4’000
PTC (Positive Temperature Coefficient) Thermistors 0805 680ohms 130C Temperature Sensor B59701A130A62 TDK 4’000: CHF 0.347 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 CHF 0.347	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

Superior SMD PTC Thermistors

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Superior SMD PTC Thermistors

Types of Circuit Protection