TRF250-120US Polymeric PTC resettable fuse rated for 120mA hold current and 60V maximum voltage. Through-hole radial disc package with 5.00mm lead spacing.
Mfr Part #:

TRF250-120US

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Polymeric PTC resettable fuse rated for 120mA hold current and 60V maximum voltage. Through-hole radial disc package with 5.00mm lead spacing.
Total Stock: 1,000 pcs
$ Price Range: $0.44 - $1.13

TRF250-120US 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
1,000 pcs
1000 pcs On Request 1 On Request On Request On Request On Request On Request

TRF250-120US 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

TRF250-120US Description

Short technical summary and product information.

The TRF250-120US from Littelfuse is a polymeric PTC resettable fuse designed for overcurrent protection in electronic circuits. It features a hold current of 120 mA and a maximum voltage rating of 60V, with an initial resistance of 16 ohms. This component trips within 2 seconds under fault conditions, providing reliable resettable circuit protection.

 

Packaged in a through-hole radial disc format, the TRF250-120US has a compact body measuring 6.00mm x 3.80mm x 10.00mm and a lead spacing of 5.00mm, making it suitable for standard PCB layouts. It operates over a temperature range of -40°C to 85°C.

 

This part is RoHS, REACH, and MSL 1 compliant (unverified), and is commonly used in telecom, consumer electronics, and industrial applications where resettable overcurrent protection is required.

TRF250-120US Quick Information

Product Type: PTC Resettable Fuse
Series: TRF250
Canonical Name: Littelfuse Inc. TRF250-120US Polymeric PTC Resettable Fuse
Subcategory: Through-Hole PTC Fuses

TRF250-120US Compliance

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

TRF250-120US Estimated Pricing

Qty Low High
1+ $1.13 $1.13
10+ $0.85 $0.85
50+ $0.64 $0.64
100+ $0.62 $0.62
250+ $0.57 $0.57
500+ $0.49 $0.49
1,000+ $0.48 $0.48
2,500+ $0.47 $0.47
5,000+ $0.44 $0.44

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

TRF250-120US Features

  • Polymeric PTC resettable overcurrent protection.
  • 120mA hold current and 60V max voltage.
  • Fast trip time under 2 seconds.
  • Through-hole radial disc with 5.00mm lead spacing.
  • Wide -40°C to 85°C operating range.

TRF250-120US Applications

  • Overcurrent protection in power supply circuits.
  • Used in telecommunication line protection.
  • Ideal for consumer electronics protection.
  • Suitable for industrial control systems.

TRF250-120US FAQs

6 frequently asked questions generated from this part’s specifications.
What is the hold current rating of the TRF250-120US?

The hold current is 120 mA.

What is the maximum voltage rating for this PTC fuse?

The maximum voltage is 60V.

What is the trip time of the TRF250-120US?

The trip time is 2 seconds.

What is the package type and lead spacing?

Radial, disc package with 5.00mm lead spacing.

What is the operating temperature range?

-40°C to 85°C.

What is the initial resistance of the TRF250-120US?

Initial resistance is 16 ohms.

Home
Account

Categories