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MICROSMD005F-2 Polymeric PTC resettable fuse rated for 30V and 50mA hold current. Surface mount package in 1210 (3225 Metric) with a 1.5s trip time.
Mfr Part #:

MICROSMD005F-2

Available from 5 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Polymeric PTC resettable fuse rated for 30V and 50mA hold current. Surface mount package in 1210 (3225 Metric) with a 1.5s trip time.
Total Stock: 27,798 pcs
$ Price Range: $0.20 - $0.51

MICROSMD005F-2 Available from 5 distributors

Authorised
Non-Authorised

MICROSMD005F-2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Lead Style
Length
Mounting Type
Operating Temperature
Resistance
Tape & Reel
Thickness (Max)
Time to Trip
Type
Voltage
Width

MICROSMD005F-2 Description

Short technical summary and product information.

The Littelfuse MICROSMD005F-2 is a polymeric PTC resettable fuse designed for overcurrent protection in low-power circuits. It features a maximum voltage rating of 30V and a hold current of 50mA, with a maximum post-trip resistance of 50Ω. The device trips in 1.5 seconds under fault conditions, resetting automatically once power is removed and the fault clears.

 

This surface mount fuse is housed in a compact 1210 (3225 Metric) concave package, measuring 3.22mm x 2.58mm x 0.85mm. It operates over a temperature range of -40°C to 85°C, making it suitable for a variety of environments. The polymeric construction ensures fast response and robust performance in repetitive fault conditions.

 

Typical applications include overcurrent protection in USB ports, battery packs, and other portable electronics where resettable protection is required to prevent damage from short circuits or overload events.

MICROSMD005F-2 Quick Information

Product Type: PTC Resettable Fuse
Series: microSMD
Canonical Name: Littelfuse MICROSMD005F-2 Polymeric PTC Resettable Fuse
Subcategory: Polymeric PTC

MICROSMD005F-2 Compliance

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

MICROSMD005F-2 Estimated Pricing

Qty Low High
1+ $0.51 $0.51
10+ $0.46 $0.46
50+ $0.39 $0.39
100+ $0.36 $0.36
200+ $0.32 $0.32
500+ $0.30 $0.30
1,000+ $0.27 $0.27
4,000+ $0.20 $0.20

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

MICROSMD005F-2 Features

  • Polymeric PTC resettable fuse for overcurrent protection.
  • Rated for 30V maximum voltage and 50mA hold current.
  • Surface mount package in 1210 (3225 Metric) size.
  • Trip time of 1.5 seconds under fault conditions.
  • Operating temperature range from -40°C to 85°C.

MICROSMD005F-2 Applications

  • Overcurrent protection in USB and power ports.
  • Battery pack protection in portable electronics.
  • Resettable fuse for low-voltage DC circuits.
  • Protection in consumer and industrial control boards.

MICROSMD005F-2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the hold current rating of the MICROSMD005F-2?

The hold current (maximum) is 50 mA.

What is the maximum voltage rating?

The maximum voltage is 30V.

What is the trip time?

The time to trip is 1.5 seconds.

What is the package or case style?

The package is 1210 (3225 Metric), Concave.

What is the maximum post-trip resistance?

The maximum post-trip resistance (R1) is 50 Ω.

What is the operating temperature range?

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

What is the mounting type?

Surface Mount.

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