MF-RX135/72 The Bourns MF-RX135/72 is a PTC resettable fuse with a 72V rating and 1.35A hold current. It features radial leaded devices for easy integration.
Mfr Part #:

MF-RX135/72

Available from 1 distributors
Mfr Name: Bourns
Bourns
The Bourns MF-RX135/72 is a PTC resettable fuse with a 72V rating and 1.35A hold current. It features radial leaded devices for easy integration.
✓ Total Stock: 140 pcs
$ Price Range: $0.99

MF-RX135/72 Available from 1 distributor

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✓ Non-Authorised
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MF-RX135/72 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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MF-RX135/72 Description

Short technical summary and product information.

The Bourns MF-RX135/72 is a PTC resettable fuse designed for low voltage power supply protection up to 72V. It features a radial leaded device construction with a cured, flame retardant epoxy polymer insulating material that meets UL 94V-0 requirements.

 

Key electrical characteristics include a maximum voltage rating of 72V and a maximum current rating of 40A. The hold current is rated at 1.35A at 23°C, with a trip current of 2.70A at 23°C. The initial resistance is a maximum of 0.12 Ohms, and the typical post-trip resistance is 0.19 Ohms. The typical power dissipation is 1.70W.

 

This resettable fuse operates within a temperature range of -40°C to +85°C. In the tripped state, the maximum device surface temperature is 125°C. The insulating material is compliant with UL 94V-0 standards.

 

Applications for the MF-RX135/72 include security and fire alarm systems, loudspeakers, and power transformers, providing reliable overcurrent protection in various low voltage systems.

MF-RX135/72 Quick Information

Product Type: PTC Resettable Fuse
Series: MF-RX/72
Canonical Name: Bourns MF-RX135/72 PTC Resettable Fuse

MF-RX135/72 Compliance

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

MF-RX135/72 Estimated Pricing

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1+ $0.99 $0.99

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

MF-RX135/72 Features

  • 72V rated voltage for low voltage applications.
  • 1.35A hold current at 23°C.
  • Radial leaded devices for easy mounting.
  • Flame retardant epoxy polymer insulation.
  • UL 94V-0 compliant material.

MF-RX135/72 Applications

  • Protects security and fire alarm systems.
  • Suitable for loudspeaker current protection.
  • Used in low voltage power transformers.
  • General low voltage circuit protection.

MF-RX135/72 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the rated voltage of the MF-RX135/72?

The rated voltage is 72 V.

What is the hold current of the MF-RX135/72?

The hold current is 1.35 A at 23 °C.

What is the trip current of the MF-RX135/72?

The trip current is 2.70 A at 23 °C.

What is the maximum current rating of the MF-RX135/72?

The maximum current is 40 A.

What is the operating temperature range?

The operating temperature range is -40 °C to +85 °C.

What is the typical power dissipation?

The typical power dissipation is 1.70 W at 23 °C.

What mounting style does the MF-RX135/72 use?

It uses through-hole radial leads.

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