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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 110C Temperature Sensor B59721A110A62 TDK 1: $0.44 7,500In Stock	Mfr. Part # B59721A110A62 Mouser Part # 871-B59721A110A62	TDK	PTC Thermistors 0805 680ohms 110C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	7,500In Stock	Cut Tape $0.44 $0.416 $0.388 $0.369 View Reel $0.269 $0.352 $0.316 $0.299 $0.269 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0805 680ohms 120C Temperature Sensor B59701A120A62 TDK 1: $0.70 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 $0.70 $0.662 $0.619 $0.59 View Reel $0.442 $0.563 $0.501 $0.479 $0.442 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors T=5K 100deg C B59008C0100A040 TDK 1: $1.45 191In Stock 100Expected 11/9/2026	Mfr. Part # B59008C0100A040 Mouser Part # 871-B59008C100A40	TDK	PTC Thermistors T=5K 100deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	191In Stock 100Expected 11/9/2026	$1.45 $1.39 $1.30 $1.25 View $1.19 $1.09 $0.984 $0.907	Min.: 1 Mult.: 1
PTC Thermistors T=5K 130deg C B59008C0130A040 TDK 1: $1.54 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	$1.54 $1.47 $1.38 $1.32 View $1.26 $1.14 $1.00	Min.: 1 Mult.: 1
PTC Thermistors T=5K 80deg C B59008C0080A040 TDK 1: $1.45 669In Stock	Mfr. Part # B59008C0080A040 Mouser Part # 871-B59008C80A40	TDK	PTC Thermistors T=5K 80deg C Learn More about TDK epcos superior ptc thermistors	Datasheet	669In Stock	$1.45 $1.39 $1.30 $1.25 View $1.19 $1.11 $1.01 $0.967	Min.: 1 Mult.: 1
PTC Thermistors T=5K 90deg C B59008C0090A040 TDK 1: $1.45 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	$1.45 $1.39 $1.30 $1.25 View $1.11 $1.07 $0.96	Min.: 1 Mult.: 1
PTC Thermistors 0402 470ohms 95C Temperature Sensor B59421A95A62 TDK 1: $0.39 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 $0.39 $0.361 $0.319 $0.304 Reel $0.225 View $0.27 $0.257 $0.234 $0.217 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
PTC Thermistors 0603 470ohms 115C Temperature Sensor B59601A115A62 TDK 1: $0.52 4,975In Stock	Mfr. Part # B59601A115A62 Mouser Part # 871-B59601A115A62	TDK	PTC Thermistors 0603 470ohms 115C Temperature Sensor Learn More about TDK epcosPTCSMDthermistor	Datasheet	4,975In Stock	Cut Tape $0.52 $0.488 $0.456 $0.433 View Reel $0.301 $0.413 $0.372 $0.352 $0.301	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0603 470ohms 75C Temperature Sensor B59601A75A62 TDK 1: $0.52 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 $0.52 $0.488 $0.456 $0.433 View Reel $0.301 $0.413 $0.372 $0.352 $0.301 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0603 470ohms 105C Temperature Sensor B59641A0105A062 TDK 1: $0.33 4,188In 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	4,188In Stock	Cut Tape $0.33 $0.312 $0.275 $0.262 Reel $0.198 View $0.234 $0.206 $0.188 $0.186 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0603 470ohms 125C Temperature Sensor B59641A0125A062 TDK 1: $0.41 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 $0.41 $0.379 $0.336 $0.313 Reel $0.236 View $0.276 $0.253 $0.218 $0.215 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0603 470ohms 135C Temperature Sensor B59641A0135A062 TDK 1: $0.38 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 $0.38 $0.358 $0.317 $0.301 Reel $0.229 View $0.268 $0.239 $0.219 $0.215 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0603 470ohms 145C Temperature Sensor B59641A145A62 TDK 1: $0.38 6,900In Stock	Mfr. Part # B59641A145A62 Mouser Part # 871-B59641A145A62	TDK	PTC Thermistors 0603 470ohms 145C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	6,900In Stock	Cut Tape $0.38 $0.358 $0.317 $0.301 Reel $0.209 View $0.268 $0.218 $0.20 $0.196 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0805 680ohms 130C Temperature Sensor B59721A0130A062 TDK 1: $0.44 3,991In Stock	Mfr. Part # B59721A0130A062 Mouser Part # 871-B59721A0130A062	TDK	PTC Thermistors 0805 680ohms 130C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	3,991In Stock	Cut Tape $0.44 $0.416 $0.388 $0.369 View Reel $0.255 $0.352 $0.316 $0.296 $0.255 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0402 470ohms 85C Temperature Sensor B59421A0085A062 TDK 1: $0.39 20,000Expected 2/9/2027	Mfr. Part # B59421A0085A062 Mouser Part # 871-B59421A0085A062	TDK	PTC Thermistors 0402 470ohms 85C Temperature Sensor Learn More about TDK epcos superior ptc thermistors	Datasheet	20,000Expected 2/9/2027	Cut Tape $0.39 $0.361 $0.319 $0.304 Reel $0.225 View $0.27 $0.257 $0.234 $0.217 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
PTC Thermistors T=5K 140deg C B59008C0140A040 TDK 1,000: $1.02 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	$1.02 $0.95	Min.: 1,000 Mult.: 1,000
PTC Thermistors 404A 60A 40 3X16 PTC Thermistor B59404B0060A040 TDK 1: $2.97 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	$2.97 $2.83 $2.64 $2.52 View $2.44 $2.17 $2.04 $1.88	Min.: 1 Mult.: 1
PTC Thermistors 0402 470ohms 75C Temperature Sensor B59421A75A62 TDK 10,000: $0.225 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 $0.225 $0.217	Min.: 10,000 Mult.: 10,000 : 10,000
PTC Thermistors 0603 470ohms 125C Temperature Sensor B59601A0125A062 TDK 1: $0.52 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	Cut Tape $0.52 $0.488 $0.456 $0.433 View Reel $0.331 $0.413 $0.372 $0.352 $0.331 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
PTC Thermistors 0603 470ohms 135C Temperature Sensor B59601A0135A062 TDK 4,000: $0.301 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 $0.301	Min.: 4,000 Mult.: 4,000 : 4,000
PTC Thermistors 0805 680ohms 140C Temperature Sensor B59701A0140A062 TDK 4,000: $0.423 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 $0.423	Min.: 4,000 Mult.: 4,000 : 4,000
PTC Thermistors 0805 680ohms 130C Temperature Sensor B59701A130A62 TDK 4,000: $0.431 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 $0.431	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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Superior SMD PTC Thermistors

Types of Circuit Protection