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TRF250-145-2 TRF250-145-2 is a polymeric PTC resettable fuse from Littelfuse with a hold current of 145 mA and a maximum voltage of 60V. It features a through-hole radial disc package and an initial resistance of 14 Ω.
Mfr Part #:

TRF250-145-2

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
TRF250-145-2 is a polymeric PTC resettable fuse from Littelfuse with a hold current of 145 mA and a maximum voltage of 60V. It features a through-hole radial disc package and an initial resistance of 14 Ω.
Total Stock: 10,540 pcs
$ Price Range: $0.41 - $0.75

TRF250-145-2 Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
10,540 pcs
10540 pcs On Request 1 On Request On Request On Request On Request On Request

TRF250-145-2 Specifications Quick View

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

TRF250-145-2 Description

Short technical summary and product information.

This part, the TRF250-145-2 from Littelfuse, is a polymeric PTC (Positive Temperature Coefficient) resettable fuse designed for overcurrent protection. It automatically resets after the fault is cleared, making it suitable for applications where replacing a fuse is impractical.

 

Key electrical specifications include a hold current of 145 mA, a maximum voltage rating of 60V DC, and a typical time to trip of 5 seconds. The initial series resistance is 14 Ω, and the device operates over a temperature range of -40°C to 85°C.

 

Mechanically, the fuse is a through-hole component with a radial disc package measuring 6.50mm x 4.60mm x 11.00mm, featuring a lead spacing of 5.08mm. It is RoHS and REACH compliant (unverified).

TRF250-145-2 Quick Information

Product Type: PTC Resettable Fuse (Polymeric)
Series: TRF250
Canonical Name: Littelfuse TRF250-145-2 Polymeric PTC Resettable Fuse, 60V, 145mA, Through Hole, Radial Disc
Subcategory: Polymeric PTC Resettable Fuse

TRF250-145-2 Compliance

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

TRF250-145-2 Estimated Pricing

Qty Low High
1+ $0.75 $0.75
10+ $0.68 $0.68
50+ $0.56 $0.56
100+ $0.52 $0.52
250+ $0.47 $0.47
500+ $0.43 $0.43
1,500+ $0.42 $0.42
3,000+ $0.42 $0.42
4,500+ $0.41 $0.41

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

TRF250-145-2 Features

  • Hold current rating of 145 mA.
  • Maximum voltage rating of 60V DC.
  • Time to trip typical 5 seconds.
  • Initial resistance of 14 Ω.
  • Operating temperature -40°C to 85°C.

TRF250-145-2 Applications

  • Provides resettable overcurrent protection in circuits.
  • Suitable for power supply and battery protection.

TRF250-145-2 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the hold current of the TRF250-145-2?

145 mA.

What is the maximum voltage rating?

60V DC.

What is the time to trip?

5 seconds.

What is the initial resistance?

14 Ω.

What is the operating temperature range?

-40°C to 85°C.

What package does this PTC fuse come in?

Radial disc, through-hole with 5.08mm lead spacing.

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