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0438.500WR Littelfuse 0438.500WR is a fast-acting 500 mA surface mount fuse in a 0603 package. Rated for 32 VAC / 63 VDC with 50 A breaking capacity.
Mfr Part #:

0438.500WR

Available from 2 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 0438.500WR is a fast-acting 500 mA surface mount fuse in a 0603 package. Rated for 32 VAC / 63 VDC with 50 A breaking capacity.
Total Stock: 3,000 pcs

0438.500WR Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,000 pcs
2000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request 15+ On Request On Request

0438.500WR Specifications Quick View

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

0438.500WR Description

Short technical summary and product information.

The Littelfuse 0438.500WR is a 500 mA fast-acting surface mount fuse from the 438 Series. It is designed to provide overcurrent protection in circuits operating at high ambient temperatures up to 150°C.

 

Electrical specifications include a voltage rating of 32 VAC and 63 VDC, a breaking capacity of 50 A at rated voltage, and a nominal melting I²t of 0.01 A²s. The fuse is RoHS3 compliant and Halogen-free, as confirmed by the datasheet.

 

The fuse comes in a 0603 (1608 Metric) surface mount package measuring 1.54 mm x 0.85 mm x 0.50 mm. It is suitable for leaded and lead-free reflow/wave soldering processes.

 

Agency approvals include CSA and UL, with a wide operating temperature range of -55°C to +150°C.

0438.500WR Quick Information

Product Type: Surface Mount Fuse
Series: 438
Canonical Name: Littelfuse 0438.500WR 0603 Fast-Acting Surface Mount Fuse, 500 mA, 32 VAC / 63 VDC
Subcategory: Board Mount Fuse

0438.500WR Compliance

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

0438.500WR Features

  • Fast-acting response time for overcurrent protection.
  • Rated 500 mA at 32 VAC / 63 VDC.
  • 50 A breaking capacity at rated voltage.
  • 0603 surface mount package for compact designs.
  • RoHS3 and Halogen-free compliance.

0438.500WR Applications

  • Overcurrent protection in high-temperature circuits.
  • Ideal for power management modules.
  • Suitable for industrial control systems.
  • Used in portable electronic devices.

0438.500WR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0438.500WR fuse?

The 0438.500WR has a current rating of 500 mA (0.5 A).

What are the voltage ratings for this fuse?

The fuse is rated for 32 VAC and 63 VDC.

What is the breaking capacity of the 0438.500WR?

The breaking capacity is 50 A at rated voltage.

What is the response time of this fuse?

The 0438.500WR is a fast-acting (fast blow) fuse.

What is the package size of the 0438.500WR fuse?

The fuse is packaged in a 0603 (1608 Metric) surface mount case.

What is the operating temperature range of the fuse?

The operating temperature range is -55°C to +150°C.

What compliance certifications does the 0438.500WR have?

The fuse is RoHS3 compliant, Halogen-free, and approved by CSA and UL.

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