Circuit Protection – Mouser Mexico

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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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
PTC Thermistors 0805 680ohms 100C Temperature Sensor B59721A100A62 TDK 1: $0.572 20,000In Stock	Mfr. Part # B59721A100A62 Mouser Part # 871-B59721A100A62	TDK	PTC Thermistors 0805 680ohms 100C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	20,000In Stock	Cut Tape $0.572 $0.541 $0.504 $0.48 View Reel $0.355 $0.458 $0.411 $0.389 $0.355 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0805 680ohms 120C Temperature Sensor B59701A120A62 TDK 1: $0.91 1,439In Stock	Mfr. Part # B59701A120A62 Mouser Part # 871-B59701A120A62	TDK	PTC Thermistors 0805 680ohms 120C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	1,439In Stock	Cut Tape $0.91 $0.861 $0.805 $0.767 View Reel $0.575 $0.732 $0.651 $0.623 $0.575 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors T=5K 100deg C B59008C0100A040 TDK 1: $1.89 221In Stock	Mfr. Part # B59008C0100A040 Mouser Part # 871-B59008C100A40	TDK	PTC Thermistors T=5K 100deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	221In Stock	$1.89 $1.81 $1.69 $1.63 View $1.55 $1.42 $1.28 $1.18	Min.: 1 Mult.: 1
PTC Thermistors T=5K 130deg C B59008C0130A040 TDK 1: $2.00 1,022In Stock	Mfr. Part # B59008C0130A040 Mouser Part # 871-B59008C130A40	TDK	PTC Thermistors T=5K 130deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	1,022In Stock	$2.00 $1.91 $1.79 $1.72 View $1.64 $1.48 $1.30	Min.: 1 Mult.: 1
PTC Thermistors T=5K 80deg C B59008C0080A040 TDK 1: $1.89 769In Stock	Mfr. Part # B59008C0080A040 Mouser Part # 871-B59008C80A40	TDK	PTC Thermistors T=5K 80deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	769In Stock	$1.89 $1.81 $1.69 $1.63 View $1.55 $1.44 $1.31 $1.26	Min.: 1 Mult.: 1
PTC Thermistors T=5K 90deg C B59008C0090A040 TDK 1: $1.89 1,223In Stock	Mfr. Part # B59008C0090A040 Mouser Part # 871-B59008C90A40	TDK	PTC Thermistors T=5K 90deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	1,223In Stock	$1.89 $1.81 $1.69 $1.63 View $1.44 $1.39 $1.25	Min.: 1 Mult.: 1
PTC Thermistors 0402 470ohms 95C Temperature Sensor B59421A95A62 TDK 1: $0.507 26In Stock	Mfr. Part # B59421A95A62 Mouser Part # 871-B59421A95A62	TDK	PTC Thermistors 0402 470ohms 95C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	26In Stock	Cut Tape $0.507 $0.469 $0.415 $0.395 Reel $0.293 View $0.351 $0.334 $0.304 $0.282 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
PTC Thermistors 0603 470ohms 75C Temperature Sensor B59601A75A62 TDK 1: $0.676 3,576In Stock	Mfr. Part # B59601A75A62 Mouser Part # 871-B59601A75A62	TDK	PTC Thermistors 0603 470ohms 75C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	3,576In Stock	Cut Tape $0.676 $0.634 $0.593 $0.563 View Reel $0.391 $0.537 $0.484 $0.458 $0.391 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0603 470ohms 105C Temperature Sensor B59641A0105A062 TDK 1: $0.429 4,238In Stock	Mfr. Part # B59641A0105A062 Mouser Part # 871-B59641A0105A062	TDK	PTC Thermistors 0603 470ohms 105C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	4,238In Stock	Cut Tape $0.429 $0.406 $0.358 $0.341 Reel $0.257 View $0.304 $0.268 $0.244 $0.242 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0603 470ohms 125C Temperature Sensor B59641A0125A062 TDK 1: $0.533 304In Stock	Mfr. Part # B59641A0125A062 Mouser Part # 871-B59641A0125A062	TDK	PTC Thermistors 0603 470ohms 125C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	304In Stock	Cut Tape $0.533 $0.493 $0.437 $0.407 Reel $0.307 View $0.359 $0.329 $0.302 $0.296 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0603 470ohms 135C Temperature Sensor B59641A0135A062 TDK 1: $0.494 6,203In Stock	Mfr. Part # B59641A0135A062 Mouser Part # 871-B59641A0135A062	TDK	PTC Thermistors 0603 470ohms 135C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	6,203In Stock	Cut Tape $0.494 $0.465 $0.412 $0.391 Reel $0.298 View $0.348 $0.311 $0.285 $0.28 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0402 470ohms 85C Temperature Sensor B59421A0085A062 TDK 1: $0.507 9,995Expected 1/29/2027	Mfr. Part # B59421A0085A062 Mouser Part # 871-B59421A0085A062	TDK	PTC Thermistors 0402 470ohms 85C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	9,995Expected 1/29/2027	Cut Tape $0.507 $0.469 $0.415 $0.395 Reel $0.293 View $0.351 $0.334 $0.304 $0.282 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
PTC Thermistors 0805 680ohms 110C Temperature Sensor B59721A110A62 TDK 1: $0.572 7,500Expected 10/27/2026	Mfr. Part # B59721A110A62 Mouser Part # 871-B59721A110A62	TDK	PTC Thermistors 0805 680ohms 110C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	7,500Expected 10/27/2026	Cut Tape $0.572 $0.541 $0.504 $0.48 View Reel $0.35 $0.458 $0.411 $0.389 $0.35 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0603 470ohms 145C Temperature Sensor B59641A145A62 TDK 1: $0.494 6,900Expected 11/2/2026	Mfr. Part # B59641A145A62 Mouser Part # 871-B59641A145A62	TDK	PTC Thermistors 0603 470ohms 145C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	6,900Expected 11/2/2026	Cut Tape $0.494 $0.465 $0.412 $0.391 Reel $0.272 View $0.348 $0.283 $0.26 $0.255 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0805 680ohms 130C Temperature Sensor B59721A0130A062 TDK 1: $0.572 3,991Expected 11/9/2026	Mfr. Part # B59721A0130A062 Mouser Part # 871-B59721A0130A062	TDK	PTC Thermistors 0805 680ohms 130C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	3,991Expected 11/9/2026	Cut Tape $0.572 $0.541 $0.504 $0.48 View Reel $0.332 $0.458 $0.411 $0.385 $0.332 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors T=5K 140deg C B59008C0140A040 TDK 1: $2.82 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # B59008C0140A040 Mouser Part # 871-B59008C140A40	TDK	PTC Thermistors T=5K 140deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	Non-Stocked Lead-Time 16 Weeks	$2.82 $2.18 $1.82 $1.78 View $1.61 $1.42 $1.33 $1.24	Min.: 1 Mult.: 1
PTC Thermistors 404A 60A 40 3X16 PTC Thermistor B59404B0060A040 TDK 1: $5.08 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # B59404B0060A040 Mouser Part # 871-B59404B0060A040	TDK	PTC Thermistors 404A 60A 40 3X16 PTC Thermistor Learn More about TDK epcos superior ptc thermistors	Datasheet	Non-Stocked Lead-Time 18 Weeks	$5.08 $3.81 $3.39 $3.22 View $3.13 $2.73 $2.64 $2.46	Min.: 1 Mult.: 1
PTC Thermistors 0402 470ohms 75C Temperature Sensor B59421A75A62 TDK 10,000: $0.293 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # B59421A75A62 Mouser Part # 871-B59421A75A62	TDK	PTC Thermistors 0402 470ohms 75C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel $0.293 $0.282	Min.: 10,000 Mult.: 10,000 : 10,000
PTC Thermistors 0603 470ohms 125C Temperature Sensor B59601A0125A062 TDK 4,000: $0.43 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # B59601A0125A062 Mouser Part # 871-B59601A0125A062	TDK	PTC Thermistors 0603 470ohms 125C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel $0.43	Min.: 4,000 Mult.: 4,000 : 4,000
PTC Thermistors 0603 470ohms 135C Temperature Sensor B59601A0135A062 TDK 4,000: $0.391 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # B59601A0135A062 Mouser Part # 871-B59601A0135A062	TDK	PTC Thermistors 0603 470ohms 135C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel $0.391	Min.: 4,000 Mult.: 4,000 : 4,000
PTC Thermistors 0805 680ohms 140C Temperature Sensor B59701A0140A062 TDK 4,000: $0.55 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # B59701A0140A062 Mouser Part # 871-B59701A0140A062	TDK	PTC Thermistors 0805 680ohms 140C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel $0.55	Min.: 4,000 Mult.: 4,000 : 4,000
PTC Thermistors 0805 680ohms 130C Temperature Sensor B59701A130A62 TDK 4,000: $0.56 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # B59701A130A62 Mouser Part # 871-B59701A130A62	TDK	PTC Thermistors 0805 680ohms 130C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel $0.56	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 # B59001Z0999A099 Mouser Part # 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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