SMD250F-2 Littelfuse SMD250F-2 is a polymeric PTC resettable fuse rated for 15V DC with a 2.5A hold current. It comes in a surface mount 2-SMD package.
Mfr Part #:

SMD250F-2

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse SMD250F-2 is a polymeric PTC resettable fuse rated for 15V DC with a 2.5A hold current. It comes in a surface mount 2-SMD package.
Total Stock: 1,511 pcs
$ Price Range: $0.23 - $0.72

SMD250F-2 Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,491 pcs
1491 pcs On Request 1 On Request On Request 20+ On Request On Request
Non-Authorised Inventory information
20 pcs
20 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

SMD250F-2 Specifications Quick View

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

SMD250F-2 Description

Short technical summary and product information.

The Littelfuse SMD250F-2 is a polymeric positive temperature coefficient (PTC) resettable fuse designed for overcurrent protection in electronic circuits. It is rated for a maximum voltage of 15V DC and a hold current of 2.5A. The device has a typical resistance of 85 mΩ and a trip time of 25 seconds at rated conditions.

 

This resettable fuse is housed in a compact 2-SMD surface mount package measuring 8.70mm in length, 6.36mm in width, and 3.00mm in thickness. It operates over a temperature range of -40°C to 85°C, making it suitable for a wide variety of environments.

 

Polymeric PTC fuses are commonly used in applications where overcurrent protection is required and where replacing a traditional fuse is impractical. The SMD250F-2 automatically resets after the fault is cleared and power is removed, reducing maintenance and downtime.

SMD250F-2 Quick Information

Product Type: PTC Resettable Fuse
Canonical Name: Littelfuse SMD250F-2 Polymeric PTC Resettable Fuse
Subcategory: Surface Mount PTC Fuse

SMD250F-2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 2
REACH Status: REACH Unaffected

SMD250F-2 Estimated Pricing

Qty Low High
1+ $0.72 $0.72
5+ $0.60 $0.60
10+ $0.55 $0.55
50+ $0.46 $0.46
100+ $0.42 $0.42
250+ $0.38 $0.38
500+ $0.35 $0.35
1,500+ $0.26 $0.26
3,000+ $0.24 $0.24
4,500+ $0.23 $0.23
7,500+ $0.23 $0.23

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

SMD250F-2 Features

  • Polymeric PTC resettable overcurrent protection.
  • Rated for 15V DC and 2.5A hold current.
  • Surface mount 2-SMD package design.
  • 85 mΩ typical resistance value.
  • Operating temperature range -40°C to 85°C.

SMD250F-2 Applications

  • Overcurrent protection in consumer electronics.
  • Used in battery charging and power management.
  • Protection for USB and peripheral ports.
  • Suitable for automotive low-voltage circuits.

SMD250F-2 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the SMD250F-2?

The SMD250F-2 is rated for 15V DC.

What is the hold current of this PTC fuse?

The hold current is 2.5A.

What is the resistance of the SMD250F-2?

The typical resistance is 85 mΩ.

What package does the SMD250F-2 come in?

It comes in a surface mount 2-SMD package.

What is the operating temperature range?

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

What is the trip time of the SMD250F-2?

The trip time is 25 seconds.

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