Circuit Protection

MF-R300-2

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FUSE, RESETTABLE PTC, 30V, 3A, RADIAL

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Circuit Protection

Active

FUSE, RESETTABLE PTC, 30V, 3A, RADIAL

Technical Specifications

Parameters and characteristics for this part

Specification	MF-R300-2

Approval Agency	cURus, TUV
Current - Hold (Ih) (Max) [Max]	3 A
Current - Max [Max]	40 A
Current - Trip (It)	6 A
Height - Seated (Max) [Max] [z]	18.3 mm
Height - Seated (Max) [Max] [z]	0.72 in
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]	20 mOhms
Resistance - Post Trip (R1) (Max) [Max]	80 mOhms
Size / Dimension [x]	12 mm
Size / Dimension [x]	0.472 in
Size / Dimension [y]	0.118 in
Size / Dimension [y]	3 mm
Time to Trip	10.8 s
Type	Polymeric
Voltage - Max [Max]	30 V

Part	Approval Agency	Resistance - Initial (Ri) (Min) [Min]	Current - Max [Max]	Voltage - Max [Max]	Type	Operating Temperature [Max]	Operating Temperature [Min]	Current - Hold (Ih) (Max) [Max]	Lead Spacing	Lead Spacing	Height - Seated (Max) [Max] [z]	Height - Seated (Max) [Max] [z]	Package / Case	Resistance - Post Trip (R1) (Max) [Max]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]	Time to Trip	Mounting Type	Current - Trip (It)
Bourns Inc. MF-R300-AP-99	cURus TUV	20 mOhms	40 A	30 V	Polymeric	85 °C	-40 C	3 A	0.201 in	5.1 mm	18.3 mm	0.72 in	Disc Radial	80 mOhms	0.118 in	12 mm	3 mm	0.472 in	10.8 s	Through Hole	6 A
Bourns Inc. MF-R300-2	cURus TUV	20 mOhms	40 A	30 V	Polymeric	85 °C	-40 C	3 A	0.201 in	5.1 mm	18.3 mm	0.72 in	Disc Radial	80 mOhms	0.118 in	12 mm	3 mm	0.472 in	10.8 s	Through Hole	6 A
Bourns Inc. MF-R300-AP	cURus TUV	20 mOhms	40 A	30 V	Polymeric	85 °C	-40 C	3 A	0.201 in	5.1 mm	18.3 mm	0.72 in	Disc Radial	80 mOhms	0.118 in	12 mm	3 mm	0.472 in	10.8 s	Through Hole	6 A

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 30V 3 A Ih Through Hole Radial, Disc

Technical documentation and resources