TDK Thermistor, PTC Type 450 mΩ 21 mm 17.5 mm 3.5 mm

RS Stock No.:: 212-0421
Distrelec Article No.:: 302-03-601
Mfr. Part No.:: B59945C0120A070
Brand:: TDK

TDK Thermistor, PTC Type 450 mΩ 21 mm 17.5 mm 3.5 mm

View all Thermistor ICs

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£1.05

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£1.26

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1,374 unit(s) shipping from 29 July 2026

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RS Stock No.:: 212-0421
Distrelec Article No.:: 302-03-601
Mfr. Part No.:: B59945C0120A070
Brand:: TDK

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	TDK
	Product Type	Thermistor
	Series	B599
	Temperature Coefficient Type	PTC
	Thermal Time Constant	10s
	Tolerance ±	25%
	Mount Type	PCB
	Automotive Standard	AEC-Q200
	Application	Short Circuit Protection, Overcurrent
	Resistance at 25°C	450mΩ
	Pin Count	2
	Termination Style	Lead Free Terminal
	Length	17.5mm
	Height	21mm
	Diameter	0.6mm
	Standards/Approvals	IEC 60068-2-27, IEC 60068-2-30, IEC 60068-2-6, UL 1434 E69802, IEC 60738-1, IEC 60068-2-14, VDE 104843 E, IEC 60068-2-3
	Depth	3.5mm
	Minimum Operating Temperature	-40°C
	Maximum Operating Temperature	125°C

	Select all
	Brand TDK
	Product Type Thermistor
	Series B599
	Temperature Coefficient Type PTC
	Thermal Time Constant 10s
	Tolerance ± 25%
	Mount Type PCB
	Automotive Standard AEC-Q200
	Application Short Circuit Protection, Overcurrent
	Resistance at 25°C 450mΩ
	Pin Count 2
	Termination Style Lead Free Terminal
	Length 17.5mm
	Height 21mm
	Diameter 0.6mm
	Standards/Approvals IEC 60068-2-27, IEC 60068-2-30, IEC 60068-2-6, UL 1434 E69802, IEC 60738-1, IEC 60068-2-14, VDE 104843 E, IEC 60068-2-3
	Depth 3.5mm
	Minimum Operating Temperature -40°C
	Maximum Operating Temperature 125°C

Datasheet

Epcos Overload Protection B59xxx Series

Protection against current overload and short-circuit

Coated thermistor disk

Manufacturer’s logo and type designation stamped on in yellow

Thermistors - PTC (Positive Temperature Coefficient)

Positive temperature coefficient Thermistor is designed for general purpose over-current, over-voltage, and direct over temperature protection. Applications in TV tube degaussing, choke and transformer protection, time delay, motor starting, liquid level sensors and overflow protection for oil tanks.

Approvals

UL recognised component up to 265V for all types

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