Circuit Protection

1812L125DR

Obsolete

RESISTOR, TEMPERATURE DEPENDENT, PTC RESETTABLE FUSE, SURFACE MOUNT, CHIP, 1812, ROHS COMPLIANT

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Circuit Protection

Obsolete

RESISTOR, TEMPERATURE DEPENDENT, PTC RESETTABLE FUSE, SURFACE MOUNT, CHIP, 1812, ROHS COMPLIANT

Technical Specifications

Parameters and characteristics for this part

Specification	1812L125DR

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]	1.25 mm
Thickness (Max) [Max]	0.049 "
Time to Trip	400 ms
Type	Polymeric
Voltage - Max [Max]	15 V

PTC 15V POLYFUSE SURF MOUNT 1812 1.25A

Part	Voltage - Max [Max]	Package / Case	Package / Case	Current - Max [Max]	Thickness (Max) [Max]	Thickness (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Resistance - Initial (Ri) (Min) [Min]	Resistance - Post Trip (R1) (Max) [Max]	Current - Hold (Ih) (Max)	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Type	Current - Trip (It)	Mounting Type	Time to Trip
Littelfuse/Commercial Vehicle Products 1812L125DR	15 V	1812 Concave	4532 Metric	100 A	1.25 mm	0.049 "	85 °C	-40 °C	50 mOhms	140 mOhms	1.25 A	4.55 mm	3.24 mm	0.179 in	0.128 in	Polymeric	2.5 A	Surface Mount	400 ms

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

Distributor	Package	Quantity	$

General part information

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

Technical documentation and resources