Circuit Protection

BK250-120-SY

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RESETTABLE FUSES - PPTC SQUARE 7MM PPTC

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Circuit Protection

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RESETTABLE FUSES - PPTC SQUARE 7MM PPTC

Technical Specifications

Parameters and characteristics for this part

Specification	BK250-120-SY

Approval Agency	UL
Current - Hold (Ih) (Max) [Max]	120 mA
Current - Max [Max]	3 A
Current - Trip (It)	240 mA
Height - Seated (Max) [Max]	0.571 "
Height - Seated (Max) [Max]	14.5 mm
Lead Spacing	0.201 in
Lead Spacing	5.1 mm
Mounting Type	Through Hole
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	Disc, Radial
Resistance - Initial (Ri) (Min) [Min]	6 Ohms
Resistance - Post Trip (R1) (Max) [Max]	10.5 Ohms
Size / Dimension [x]	0.276 "
Size / Dimension [x]	7 mm
Size / Dimension [y]	4.6 mm
Size / Dimension [y]	0.181 in
Time to Trip	5 s
Type	Polymeric
Voltage - Max [Max]	250 V

Part	Approval Agency	Mounting Type	Resistance - Post Trip (R1) (Max) [Max]	Resistance - Initial (Ri) (Min) [Min]	Current - Trip (It)	Current - Max [Max]	Size / Dimension [x]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [y]	Time to Trip	Type	Package / Case	Current - Hold (Ih) (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Max [Max]	Height - Seated (Max) [Max]	Height - Seated (Max) [Max]	Lead Spacing	Lead Spacing	Size / Dimension [diameter]	Size / Dimension [diameter]	Size / Dimension [z]	Size / Dimension [z]	Height - Seated (Max) [Max] [custom]	Height - Seated (Max) [Max] [custom]
YAGEO BK250-120-SY	UL	Through Hole	10.5 Ohms	6 Ohms	240 mA	3 A	0.276 "	7 mm	4.6 mm	0.181 in	5 s	Polymeric	Disc Radial	120 mA	85 °C	-40 C	250 V	0.571 "	14.5 mm	0.201 in	5.1 mm
YAGEO BK250-060-DY	UL	Through Hole	45 Ohms	20 Ohms	120 mA	3 A					5 s	Polymeric	Disc Radial	60 mA	85 °C	-40 C	250 V	0.571 "	14.5 mm	0.201 in	5.1 mm	0.291 "	7.4 mm	0.181 "	4.6 mm
YAGEO BK250-800-SZ		Through Hole	1 Ohms	400 mOhms	1.6 A	10 A	0.787 "	20 mm	4.6 mm	0.181 in	18 s	Polymeric	Disc Radial	800 mA	85 °C	-40 C	250 V			0.201 in	5.1 mm					0.866 in	22 mm

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

General part information

Polymeric PTC Resettable Fuse 250V 120 mA Ih Through Hole Radial, Disc

Technical documentation and resources