MF-R005-2 PTC resettable fuse with 50 mA hold current, 60 V max voltage, and 40 A max current. Through-hole radial disc package.
Mfr Part #:

MF-R005-2

Available from 1 distributors
Mfr Name: Bourns
Bourns
PTC resettable fuse with 50 mA hold current, 60 V max voltage, and 40 A max current. Through-hole radial disc package.
Total Stock: 193 pcs
$ Price Range: $0.16 - $0.36

MF-R005-2 Available from 1 distributor

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193 pcs
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MF-R005-2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Agency Approvals
Current
Halogen Free
Height
Lead Spacing
Max Current (Imax)
Mounting Type
Operating Temperature
Post-Trip Resistance (R1max)
Prop 65
Resistance
Tape & Reel
Termination Style
Time to Trip
Trip Current (Itrip)
Tripped Power Dissipation
Type
Voltage

MF-R005-2 Description

Short technical summary and product information.

The Bourns MF-R005-2 is a polymeric PTC resettable fuse designed for overcurrent protection in low-power circuits. It features a hold current of 50 mA at 23°C and a trip current of 100 mA. The device can handle a maximum voltage of 60 V and a maximum fault current of 40 A.

 

This fuse offers a low initial resistance range of 7.3 Ω to 11.1 Ω, with a post-trip resistance of 22 Ω maximum. The time to trip is typically 5 seconds at 0.5 A. The tripped power dissipation is 0.22 W typical. It operates over a temperature range of -40°C to 85°C.

 

The MF-R005-2 is housed in a radial disc package with through-hole mounting. It has a diameter of 8.00 mm and a thickness of 3.10 mm, with a lead spacing of 5.10 mm. The device is RoHS compliant, lead-free, and halogen-free, with cUL and TÜV agency approvals. It is available in tape and reel (TR) or cut tape (CT) packaging options.

MF-R005-2 Quick Information

Product Type: PTC Resettable Fuse
Series: MF-R Series
Canonical Name: Bourns MF-R005-2 PTC Resettable Fuse, 50mA Hold Current, 60V
Subcategory: Polymeric PTC Resettable Fuse

MF-R005-2 Compliance

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

MF-R005-2 Estimated Pricing

Qty Low High
1+ $0.36 $0.36
10+ $0.33 $0.33
50+ $0.28 $0.28
100+ $0.26 $0.26
250+ $0.23 $0.23
500+ $0.21 $0.21
1,000+ $0.20 $0.20
3,000+ $0.17 $0.17
6,000+ $0.16 $0.16

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

MF-R005-2 Features

  • Hold current of 50 mA at 23°C.
  • Max voltage rating of 60 V.
  • Max current rating of 40 A.
  • Initial resistance range of 7.3 to 11.1 ohms.
  • Time to trip of 5 seconds at 0.5 A.

MF-R005-2 Applications

  • Used in overcurrent protection circuits.
  • Suitable for low-power electronic devices.
  • Ideal for battery charging circuits.
  • Common in telecommunications equipment.
  • Protects sensitive components from fault currents.

MF-R005-2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the hold current of the MF-R005-2?

50 mA at 23°C.

What is the maximum voltage rating?

60 V.

What is the time to trip?

Max 5 seconds at 0.5 A.

What is the package type?

Through Hole, Radial Disc.

What is the operating temperature range?

-40°C to 85°C.

What agency approvals does it have?

cUL (E174545) and TÜV (R50366745).

What is the initial resistance range?

7.3 Ω to 11.1 Ω at 23°C.

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