FSA-7A OptiFuse FSA-7A is a fast-acting glass tube fuse rated for 7A at 250VAC, with a breaking capacity of 200A at 250VAC. It comes in a standard 3AB/3AG package (1/4" x 1-1/4") requiring a holder.
Mfr Part #:

FSA-7A

Available from 1 distributors
Mfr Name: OptiFuse
OptiFuse
OptiFuse FSA-7A is a fast-acting glass tube fuse rated for 7A at 250VAC, with a breaking capacity of 200A at 250VAC. It comes in a standard 3AB/3AG package (1/4" x 1-1/4") requiring a holder.
Total Stock: 20 pcs
$ Price Range: $0.58 - $0.97

FSA-7A 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
20 pcs
20 pcs On Request 1 100 On Request On Request On Request On Request

FSA-7A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Breaking Capacity @ Rated Voltage
Current Rating (Amps)
Fuse Type
Melting I²t
Mounting Type
Operating Temperature
Response Time
Termination Style
Voltage Rating

FSA-7A Description

Short technical summary and product information.

The OptiFuse FSA-7A is a fast-acting glass tube fuse designed for overcurrent protection in a variety of electronic and electrical applications. It is rated for 7A continuous current at 250VAC, with an interrupting rating of 200A at 250VAC and 100A at 125VAC (PSE standard). Its fast-blow response time makes it suitable for protecting sensitive components where rapid opening is critical.

 

This fuse features a glass tube body with metal end caps and requires a compatible fuse holder for installation. It measures 0.250" diameter by 1.252" length (6.35mm x 31.80mm), conforming to the industry-standard 3AB/3AG footprint. The operating temperature range is -55°C to 125°C, allowing use in diverse environments.

 

The FSA-7A is listed under UL 248-14 and CSA C22.2 No.248.14 standards, carrying approvals from CSA, cULus, and UR. A melting I²t rating of 195.3 A²s is provided for coordination studies. This fuse is part of the FSA series from OptiFuse and is RoHS3, REACH, and MSL 1 compliant per current data (unverified).

FSA-7A Quick Information

Product Type: Glass Tube Fuse
Series: FSA
Canonical Name: Fast-Acting Glass Tube Fuse, 7A, 250VAC, 3AB/3AG
Subcategory: Fast Blow Fuse

FSA-7A Compliance

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

FSA-7A Estimated Pricing

Qty Low High
1+ $0.97 $0.97
10+ $0.85 $0.85
50+ $0.74 $0.74
100+ $0.70 $0.70
250+ $0.65 $0.65
500+ $0.60 $0.60
1,000+ $0.58 $0.58

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

FSA-7A Features

  • Fast-acting response time protects sensitive circuits.
  • Rated 7A at 250VAC for general applications.
  • Cartridge-style, requiring a holder for installation.
  • Meets UL 248-14 and CSA C22.2 No.248.14 standards.
  • Operating temperature range from -55°C to 125°C.

FSA-7A Applications

  • Overcurrent protection in power supply circuits.
  • Suitable for industrial control equipment.
  • Ideal for consumer electronics and appliances.
  • Used in automotive and lighting applications.

FSA-7A FAQs

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

7A

What is the voltage rating of the FSA-7A?

250VAC

What is the breaking capacity of the FSA-7A?

200A at 250VAC and 100A at 125VAC

What is the response time of this fuse?

Fast Blow

What package size is the FSA-7A?

3AB, 3AG, 1/4" x 1-1/4" (6.35mm x 31.80mm)

What is the operating temperature range?

-55°C to 125°C

What is the melting I²t of the FSA-7A?

195.3 A²s

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