FSC-1.25A The OptiFuse FSC-1.25A is a 5x20mm glass tube fuse rated at 1.25A and 250VAC. It features a fast blow response and a breaking capacity of 100A at 250VAC.
Mfr Part #:

FSC-1.25A

Available from 1 distributors
Mfr Name: OptiFuse
OptiFuse
The OptiFuse FSC-1.25A is a 5x20mm glass tube fuse rated at 1.25A and 250VAC. It features a fast blow response and a breaking capacity of 100A at 250VAC.
Total Stock: 10 pcs
$ Price Range: $0.47 - $0.79

FSC-1.25A Available from 1 distributor

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10 pcs
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FSC-1.25A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Body Material
Breaking Capacity @ Rated Voltage
Current Rating (Amps)
Fuse Type
Mounting Type
Operating Temperature
Response Time
Termination Style
Voltage Rating

FSC-1.25A Description

Short technical summary and product information.

The OptiFuse FSC-1.25A is a 5mm x 20mm glass tube cartridge fuse designed for overcurrent protection. It is part of the FSC series and features a fast-acting (fast blow) response time.

 

Electrically, the fuse is rated for 1.25A continuous current at 250VAC. Its interrupting rating is 100A at 250VAC for the 1.2A-3.5A current range, and the I²t reference value is 1.54 A²s. The operating temperature range is -55°C to 125°C as per the datasheet.

 

The fuse body is made of glass, and the package size is standard 5mm x 20mm cartridge. Mounting requires a compatible holder. Termination style is cartridge type.

 

Compliance listings include RoHS3, REACH unaffected, and MSL level 1 (unlimited), though these are unverified. The fuse is tested to UL 248-14 and CSA C22.2 No.248.14 standards (file E197390).

FSC-1.25A Quick Information

Product Type: Fuse
Series: FSC
Canonical Name: OptiFuse FSC Series 1.25A 250V Fast Blow Glass Cartridge Fuse
Subcategory: Glass Tube Fuse

FSC-1.25A Compliance

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

FSC-1.25A Estimated Pricing

Qty Low High
1+ $0.79 $0.79
10+ $0.70 $0.70
50+ $0.61 $0.61
100+ $0.56 $0.56
250+ $0.53 $0.53
500+ $0.50 $0.50
1,000+ $0.47 $0.47

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

FSC-1.25A Features

  • Rated 1.25A at 250VAC.
  • Fast blow response time.
  • 100A breaking capacity at 250VAC.
  • Glass tube body, 5x20mm.
  • Operating temperature -55°C to 125°C.

FSC-1.25A Applications

  • Overcurrent protection in power supplies.
  • Suitable for general electronics circuits.
  • Ideal for fast-acting protection needs.
  • Use in appliances and lighting equipment.

FSC-1.25A FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the FSC-1.25A?

The current rating is 1.25 A.

What is the voltage rating of the FSC-1.25A?

The voltage rating is 250 V.

What is the breaking capacity of the FSC-1.25A?

The breaking capacity is 100 A at 250 VAC.

What is the response time of the FSC-1.25A?

The response time is Fast Blow.

What is the package/case of the FSC-1.25A?

The package is 5mm x 20mm cartridge.

What is the I²t value of the FSC-1.25A?

The I²t value is 1.54 A²s.

What is the operating temperature range of the FSC-1.25A?

The operating temperature range is -55°C to 125°C.

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