MF-RX375/72-0 PTC resettable fuse from Bourns, rated for 3.75A hold current and 72V maximum voltage. Features a radial through-hole package with 10.2mm lead spacing.
Mfr Part #:

MF-RX375/72-0

Available from 1 distributors
Mfr Name: Bourns
Bourns
PTC resettable fuse from Bourns, rated for 3.75A hold current and 72V maximum voltage. Features a radial through-hole package with 10.2mm lead spacing.
Total Stock: 100 pcs
$ Price Range: $0.36 - $0.77

MF-RX375/72-0 Available from 1 distributor

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100 pcs
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MF-RX375/72-0 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Halogen Free
Height
Lead Spacing
Lead Style
Length
Maximum Current
Mounting Type
Operating Temperature
Post-Trip Resistance (Max)
Prop 65
Resistance
Tape & Reel
Time to Trip
Trip Current (Itrip)
Tripped Power Dissipation
Type
Voltage
Width

MF-RX375/72-0 Description

Short technical summary and product information.

The Bourns MF-RX375/72-0 is a polymeric PTC resettable fuse from the MF-RX/72 series. It is designed for overcurrent protection in low voltage circuits up to 72V. With a hold current of 3.75A and a trip current of 7.50A, it provides reliable protection.

 

Electrical characteristics include a maximum current rating of 40A, initial resistance range of 30 mΩ to 80 mΩ (typical 50 mΩ), and post-trip resistance maximum of 130 mΩ. The maximum time to trip at 18.75A is 24 seconds, with typical tripped power dissipation of 3.20W.

 

The device is housed in a radial disc package with through-hole mounting. Dimensions are 23.51mm length, 3.10mm width, 29.50mm height, and lead spacing of 10.20mm. It operates over a temperature range of -40°C to 85°C.

 

The MF-RX375/72-0 is RoHS compliant, lead-free, and halogen-free. It is suitable for applications such as security systems, loudspeakers, and power transformers. The epoxy polymer insulating material meets UL 94 V-0 flammability requirements.

MF-RX375/72-0 Quick Information

Product Type: PTC Resettable Fuse
Series: MF-RX/72
Canonical Name: Bourns MF-RX375/72-0 PTC Resettable Fuse
Subcategory: Polymeric PTC

MF-RX375/72-0 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead Free

MF-RX375/72-0 Estimated Pricing

Qty Low High
1+ $0.77 $0.77
10+ $0.62 $0.62
50+ $0.57 $0.57
100+ $0.51 $0.51
250+ $0.49 $0.49
500+ $0.45 $0.45
1,000+ $0.41 $0.41
3,000+ $0.41 $0.41
6,000+ $0.36 $0.36

Estimated market price range - modelled values for guidance only, not live distributor offers.

MF-RX375/72-0 Features

  • 3.75A hold current, 7.50A trip current.
  • 72V maximum voltage rating.
  • 40A maximum interrupt current.
  • Radial through-hole package.
  • RoHS and halogen free compliant.

MF-RX375/72-0 Applications

  • Security and fire alarm systems.
  • Loudspeaker overcurrent protection.
  • Power transformer protection.
  • Low voltage power supply circuits.

MF-RX375/72-0 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the hold current of the MF-RX375/72-0?

3.75 A.

What is the maximum voltage rating?

72 V.

What is the maximum interrupt current?

40 A.

What is the time to trip at 18.75 A?

24 seconds maximum.

What is the package type?

Radial, Disc through-hole.

What is the operating temperature range?

-40°C to 85°C.

Is the MF-RX375/72-0 RoHS compliant?

Yes, RoHS3 compliant and lead-free.

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