MF-RX135/72-0

$0.68

Description：PTC RESET FUSE 72V 1.35A RADIAL
Series：Multifuse®, MF-RX/72
Mfr：Bourns Inc.
Package：Bulk

SKU:3265bd20848a Category: PTC Resettable Fuses Brand: Bourns Inc.

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Product introduction

Product Detailed Parameters

Description：PTC RESET FUSE 72V 1.35A RADIAL
Series：Multifuse®, MF-RX/72
Mfr：Bourns Inc.
Package：Bulk
Type：Polymeric
Voltage - Max：72V
Current - Hold (Ih) (Max)：1.35 A
Current - Trip (It)：2.7 A
Current - Max：40 A
Time to Trip：9.6 s
Resistance - Initial (Ri) (Min)：120 mOhms
Resistance - Post Trip (R1) (Max)：300 mOhms
Operating Temperature：-40°C ~ 85°C
Grade：-
Qualification：-
Ratings：-
Mounting Type：Through Hole
Package / Case：Radial, Disc
Size / Dimension：0.483" L x 0.122" W (12.26mm x 3.10mm)
Height - Seated (Max)：0.718" (18.26mm)
Thickness (Max)：-
Lead Spacing：0.201" (5.10mm)

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MF-RX135/72-0

Overview

The Bourns MF-RX135/72-0 is a polymeric positive temperature coefficient (PPTC) resettable fuse from the MF-RX/72 series. It features a hold current of 1.35 A and a trip current of 2.7 A at rated voltage. The device supports a maximum voltage of 72 VDC and a maximum fault current of 40 A. Typical trip time is 9.6 seconds. Initial resistance is 0.12 Ohms, with power dissipation of 1.7 W. Operating temperature range is -40°C to +85°C. Dimensions are 12.26 mm length, 3.1 mm width, and 18.26 mm height, with 5.1 mm lead spacing.

Feature Summary

Provides automatic circuit protection through reversible resistance increase during overcurrent events
Complies with automotive reliability standards including AEC-Q200 certification
Utilizes radial through-hole mounting for standard PCB integration

Applications

Automotive electronic circuits requiring AEC-Q200 compliance
Consumer electronics power input protection
Industrial control board overcurrent safeguarding

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm package type matches bulk or tape-and-reel requirements. Ensure storage conditions maintain material integrity prior to soldering. Cross-reference date codes with production timelines to avoid obsolete inventory.

Selection Notes

Select this component when circuit design requires 72 VDC rating and 1.35 A continuous current handling. Evaluate thermal environment constraints within the -40°C to +85°C operational window. Consider initial resistance impact on signal integrity. Verify mechanical fitment against available PCB real estate and lead spacing requirements.

Part Context

This part belongs to the Bourns MF-RX/72 series of high-current PPTC devices. The series offers various hold currents ranging from low milliampere levels to several amperes. All members share common voltage ratings and physical mounting characteristics while differing in trip thresholds and response times.