MF-SMDF050-2 PTC resettable fuse from Bourns, rated for 60V maximum voltage and 550mA hold current with a 1.2A trip current. Surface mount in a 2018 (5045 Metric) concave package.
Mfr Part #:

MF-SMDF050-2

Available from 7 distributors
Mfr Name: Bourns
Bourns
PTC resettable fuse from Bourns, rated for 60V maximum voltage and 550mA hold current with a 1.2A trip current. Surface mount in a 2018 (5045 Metric) concave package.
Total Stock: 58,392 pcs
$ Price Range: $0.19 - $0.49

MF-SMDF050-2 Available from 7 distributors

Authorised
Non-Authorised

MF-SMDF050-2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Halogen Free
Hold Current (Ihold)
Length
Maximum Current (Imax)
Mounting Type
Operating Temperature
Prop 65
Resistance
SVHC Present
Tape & Reel
Thickness (Max)
Time to Trip
Trip Current (Itrip)
Tripped Power Dissipation
Type
Voltage
Width

MF-SMDF050-2 Description

Short technical summary and product information.

The Bourns MF-SMDF050-2 is a polymeric PTC resettable fuse designed for overcurrent protection in electronic circuits. It features a hold current of 0.55 A and a trip current of 1.2 A, with a maximum voltage rating of 60 V and a maximum interrupt current of 10 A. The device offers a fast trip time of 3.0 seconds maximum at 2.5 A and 23 °C, and a typical tripped power dissipation of 0.9 W.

 

This resettable fuse is housed in a compact 2018 (5045 Metric) concave surface mount package with dimensions of 5.08 mm length, 4.58 mm width, and 1.09 mm maximum thickness. It operates over a temperature range of -40°C to 85°C, making it suitable for a wide variety of environments.

 

The MF-SMDF050-2 is RoHS compliant, lead free, and halogen free. It is intended for use in applications requiring reliable overcurrent protection with automatic reset capability, such as in power supplies, battery packs, and consumer electronics.

MF-SMDF050-2 Quick Information

Product Type: PTC Resettable Fuse
Series: MF-SMDF050
Canonical Name: Bourns MF-SMDF050-2 PTC Resettable Fuse
Subcategory: Polymeric PTC

MF-SMDF050-2 Compliance

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

MF-SMDF050-2 Estimated Pricing

Qty Low High
1+ $0.49 $0.49
10+ $0.45 $0.45
50+ $0.37 $0.37
100+ $0.34 $0.34
250+ $0.29 $0.29
500+ $0.27 $0.27
1,000+ $0.25 $0.25
2,500+ $0.25 $0.25
6,000+ $0.19 $0.19

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

MF-SMDF050-2 Features

  • 0.55 A hold current rating.
  • 1.2 A trip current at 23°C.
  • 60 V maximum operating voltage.
  • Fast trip time of 3.0 seconds.
  • Surface mount 2018 concave package.

MF-SMDF050-2 Applications

  • Overcurrent protection in power supplies.
  • Battery pack protection circuits.
  • Consumer electronics fault protection.
  • Automotive low-power circuit protection.

MF-SMDF050-2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the hold current of the Bourns MF-SMDF050-2?

The hold current is 0.55 A.

What is the trip current of this PTC fuse?

The trip current is 1.2 A.

What is the maximum voltage rating?

The maximum voltage is 60 V.

What is the maximum interrupt current?

The maximum interrupt current is 10 A.

What is the operating temperature range?

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

What package does the MF-SMDF050-2 come in?

It comes in a 2018 (5045 Metric) concave surface mount package.

Is the MF-SMDF050-2 RoHS compliant?

Yes, it is RoHS compliant, lead free, and halogen free.

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