RS120-375

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OptiFuse

PTC RESET FUSE 120V 3.75A RADIAL

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RS120-375

Active

OptiFuse

PTC RESET FUSE 120V 3.75A RADIAL

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Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics commom to parts in this series

Specification	RS120-375	RS120 Series

Approval Agency	cUL, TUV, UL	cUL, TUV, UL
Current - Hold (Ih) (Max) [Max]	3.75 A	1.1 - 500 mA
Current - Max [Max]	20 A	3 - 20 A
Current - Trip (It)	7.5 A	1 - 7.5 A
Height - Seated (Max)	-	14.9 - 27.9 mm
Height - Seated (Max)	-	0.587 - 0.72 "
Height - Seated (Max) [Max] [z]	1.339 in	0.98 - 1.339 in
Height - Seated (Max) [Max] [z]	34 mm	24.9 - 34 mm
Lead Spacing	-	5.1 mm
Lead Spacing	-	0.201 in
Mounting Type	Through Hole	Through Hole
Operating Temperature [Max]	85 °C	85 °C
Operating Temperature [Min]	-40 °C	-40 °C
Package / Case	Disc, Radial	Disc, Radial
Resistance - Initial (Ri) (Min) [Min]	30 mOhms	30 - 150 mOhms
Resistance - Post Trip (R1) (Max) [Max]	80 mOhms	1.17 - 380 Ohms
Size / Dimension	4.1 mm, 25.5 mm	3.8 - 25.5 mm
Size / Dimension	-	0.15 in
Size / Dimension	-	13.3 - 19.9 mm
Size / Dimension	-	0.783 "
Size / Dimension	-	4.1 mm
Size / Dimension	-	0.161 "
Size / Dimension	-	0.925 "
Size / Dimension	-	0.161 in
Size / Dimension	-	23.5 mm
Size / Dimension	-	4.1 mm
Size / Dimension	-	0.161 in
Size / Dimension [diameter]	1.004 in	0.362 - 1.004 in
Size / Dimension [z]	0.161 "	0.161 "
Time to Trip	24 s	6 - 24 s
Type	Polymeric	Polymeric
Voltage - Max [Max]	135 V	135 V
Voltage - Max [Max]	120 V	120 V

RS120 Series

PTC RESET FUSE 120V 500MA RADIAL

Part	Current - Hold (Ih) (Max) [Max]	Resistance - Post Trip (R1) (Max) [Max]	Voltage - Max [Max]	Voltage - Max [Max]	Package / Case	Size / Dimension	Size / Dimension [custom]	Size / Dimension [diameter]	Type	Current - Max [Max]	Mounting Type	Time to Trip	Lead Spacing	Lead Spacing	Operating Temperature [Max]	Operating Temperature [Min]	Height - Seated (Max) [Max]	Height - Seated (Max) [Max]	Approval Agency	Current - Trip (It)	Resistance - Initial (Ri) (Min) [Min]	Size / Dimension [z]	Height - Seated (Max) [Max] [z]	Height - Seated (Max) [Max] [z]	Size / Dimension [diameter]	Size / Dimension [diameter]	Size / Dimension [custom]	Size / Dimension [custom]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [custom]
OptiFuse RS120-050	500 mA	1.17 Ohms	135 V	120 V	Disc, Radial	3.8 mm, 9.2 mm	0.15 in	0.362 in	Polymeric	3 A	Through Hole	6 s	5.1 mm	0.201 in	85 °C	-40 °C	14.9 mm	0.587 "	cUL, TUV, UL	1 A
OptiFuse RS120-375	3.75 A	80 mOhms	135 V	120 V	Disc, Radial	4.1 mm, 25.5 mm		1.004 in	Polymeric	20 A	Through Hole	24 s			85 °C	-40 °C			cUL, TUV, UL	7.5 A	30 mOhms	0.161 "	1.339 in	34 mm
OptiFuse RS120-185	1.85 A		135 V	120 V	Disc, Radial				Polymeric	12 A	Through Hole		5.1 mm	0.201 in	85 °C	-40 °C			cUL, TUV, UL	3.7 A	80 mOhms		0.98 in	24.9 mm	19.9 mm	0.783 "	4.1 mm	0.161 "
OptiFuse RS120-200	2 A	210 mOhms	135 V	120 V	Disc, Radial				Polymeric	20 A	Through Hole		5.1 mm	0.201 in	85 °C	-40 °C	27.9 mm		cUL, TUV, UL	4.2 A	80 mOhms		1.098 "						0.925 "	0.161 in	23.5 mm	4.1 mm
OptiFuse RS120-110	1.1 A	380 mOhms	135 V	120 V	Disc, Radial			0.524 in	Polymeric	8 A	Through Hole	8.2 s	5.1 mm	0.201 in	85 °C	-40 °C	18.3 mm	0.72 in	cUL, TUV, UL	2.2 A	150 mOhms				13.3 mm		4.1 mm						0.161 in

Pricing

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

Distributor	Package	Quantity	$

Digikey	Bulk	1	$ 2.20
		10	$ 2.06
		25	$ 1.93
		50	$ 1.79
		100	$ 1.63
		250	$ 1.52
		500	$ 1.39
		1000	$ 1.27

Description

General part information

RS120 Series

Polymeric PTC Resettable Fuse 120V (135V Int) 3.75 A Ih Through Hole Radial, Disc

Documents

Technical documentation and resources