Have a small number of parts or want to add parts manually? Request Quote manually

Search across all market segments

043803.5WRA Littelfuse 043803.5WRA is a 3.5A, 32VDC/12VAC fast-acting ceramic fuse in a 0603 surface mount package with 50A breaking capacity.
Mfr Part #:

043803.5WRA

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 043803.5WRA is a 3.5A, 32VDC/12VAC fast-acting ceramic fuse in a 0603 surface mount package with 50A breaking capacity.
Total Stock: 816 pcs

043803.5WRA 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
816 pcs
816 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16

043803.5WRA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Approval Agency
Automotive Grade
Breaking Capacity
Breaking Capacity @ Rated Voltage
Current Rating
Current Rating (Amps)
Fuse Type
Halogen Free
Height
Length
Melting I²t
Mounting Type
Operating Temperature
Package / Case
Response Time
Tape & Reel
Voltage Rating
Voltage Rating AC
Voltage Rating DC
Width

043803.5WRA Description

Short technical summary and product information.

The Littelfuse 043803.5WRA is a 3.5 Amp fast-acting fuse from the 438A series, designed for surface mount applications. It is rated for 12 volts AC and 32 volts DC with a breaking capacity of 50 amperes. The fuse features a fast blow response time with a melting I²t of 0.647 A²s. The operating temperature range spans -55°C to +150°C. The component measures 1.58 mm length by 0.85 mm width by 0.61 mm height in an 0603 (1608 metric) ceramic package. The 438A series is AECQ-compliant, 100% lead-free, RoHS compliant, and halogen-free with CSA and UR agency approvals.

043803.5WRA Quick Information

Product Type: Surface Mount Fuse
Series: 438A
Canonical Name: 043803.5WRA Littelfuse 438A Series 3.5A 32VDC/12VAC Fast-Acting Ceramic Fuse 0603
Subcategory: Fast-Acting Ceramic Fuse

043803.5WRA Compliance

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

043803.5WRA Features

  • Fast-acting response time of 5 seconds maximum at 250% rated current.
  • Rated for 3.5 A continuous current with 50 A interrupting capacity.
  • Operating temperature range from -55°C to +150°C.
  • Surface mount 0603 ceramic package with 1.58 mm body length.
  • 100% lead-free, RoHS compliant, and halogen-free construction.

043803.5WRA Applications

  • Secondary circuit protection in automotive electronics.
  • Compact consumer electronics requiring 0603 fuse footprint.
  • Industrial control circuits with 32 VDC or 12 VAC supply.
  • Applications requiring high I²t for inrush current withstand.

043803.5WRA FAQs

5 frequently asked questions generated from this part’s specifications.
What is the current rating of the 043803.5WRA fuse?

The fuse is rated for 3.5 A continuous current.

What is the voltage rating of the 043803.5WRA fuse?

The fuse is rated 12 VAC and 32 VDC.

What is the breaking capacity of the 043803.5WRA fuse?

The fuse has a breaking capacity of 50 A at rated voltage.

What is the response time of the 043803.5WRA fuse?

It is a fast-blow fuse. At 250% of rated current the opening time is 5 seconds maximum.

What package does the 043803.5WRA come in?

The fuse is packaged in an 0603 (1608 metric) surface mount ceramic package.

Home
Categories
Submit RFQ
Login
Account

Categories