Circuit Protection

1812L125/6PR

Active

PTC RESETTABLE FUSE 1.25A(HOLD) 2.5A(TRIP) 6VDC 100A 0.8W 0.4S 0.05OHM SMD SOLDER PAD 1812 T/R

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Circuit Protection

Active

PTC RESETTABLE FUSE 1.25A(HOLD) 2.5A(TRIP) 6VDC 100A 0.8W 0.4S 0.05OHM SMD SOLDER PAD 1812 T/R

Technical Specifications

Parameters and characteristics for this part

Specification	1812L125/6PR

Approval Agency	cURus, TUV
Current - Hold (Ih) (Max)	1.25 A
Current - Max [Max]	100 A
Current - Trip (It)	2.5 A
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	1812, Concave
Package / Case	4532 Metric
Resistance - Initial (Ri) (Min) [Min]	50 mOhms
Resistance - Post Trip (R1) (Max) [Max]	140 mOhms
Size / Dimension [x]	4.55 mm
Size / Dimension [x]	0.179 in
Size / Dimension [y]	3.24 mm
Size / Dimension [y]	0.128 in
Thickness (Max) [Max]	0.75 mm
Thickness (Max) [Max]	0.03 in
Time to Trip	400 ms
Type	Polymeric
Voltage - Max [Max]	6 V

PTC 6V POLYFUSE SURF MOUNT 1812 1.25A

Part	Approval Agency	Type	Package / Case	Package / Case	Voltage - Max [Max]	Resistance - Initial (Ri) (Min) [Min]	Current - Trip (It)	Time to Trip	Mounting Type	Current - Max [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Thickness (Max) [Max]	Thickness (Max) [Max]	Current - Hold (Ih) (Max)	Resistance - Post Trip (R1) (Max) [Max]
Littelfuse/Commercial Vehicle Products 1812L125/6PR	cURus TUV	Polymeric	1812 Concave	4532 Metric	6 V	50 mOhms	2.5 A	400 ms	Surface Mount	100 A	85 °C	-40 °C	4.55 mm	3.24 mm	0.179 in	0.128 in	0.75 mm	0.03 in	1.25 A	140 mOhms

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

General part information

The 1812L series device provides surface mount overcurrent protection for applications where resettable protection is desired.

Technical documentation and resources