myMectronic
myMectronic

A Premier B2B Part Search

Littelfuse 0438001WR Ceramic Fuse

The 438 Series ceramic surface mount fuse offers fast-acting overcurrent protection for electronic circuits operating up to 150°C ambient temperature. RoHS compliant, halogen-free, and lead-free, these fuses are designed for high-temperature stability and reliability, making them ideal for handheld electronics, LCD displays, SD cards, and battery packs. With rated currents from 0.25A to 6A and voltage ratings up to 63VDC, they withstand high inrush currents and feature solid moisture resistance, suitable for reflow and wave soldering processes. Features include advanced ceramic body, tin-based terminations, and compliance with industry safety standards.

Authorized Distributors
Source:Newark
Part No:0438001.WR
Stock:3
Inv Date:05-28-2026
Price: Unit price: $0.168
Buy/RFQ:
Source:DigiKey
Part No:0438001.WR
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.62775
Buy/RFQ:
Part No:0438001.WR
Stock:0
Inv Date:05-28-2026
Price: Unit price: $1.15
Buy/RFQ:
Part No:0438001.WR
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.713
Buy/RFQ:
Part No:0438001.WR
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.713
Buy/RFQ:
Part No:0438001.WR
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.78
Buy/RFQ:

Littelfuse 0438001WR Ceramic Fuse Specifications:

  • Body Material: Advanced Ceramic with Moisture Resistance
  • Termination Material: Ag / Ni / Sn (Lead-free)
  • Operating Temperature: -55°C to +150°C
  • Rated Current: 0.25A to 6A
  • Voltage Rating: 63VDC, 32VAC, 12VAC
  • Time-Current Characteristic: 4 Hours at 100% rated current, 5 Seconds at 250% rated current
  • Soldering Method: Reflow Temp 217°C, Snip 260°C for 10 sec max
  • Physical Dimensions: Typical size 0.039 inches diameter, length varies
  • Compliance Standards: RoHS, Halogen-free, MIL-STD-202, IPC/JEDEC
  • Bonding: Lead-free glass coating, moisture resistant
  • Peak Temperature: 260°C during soldering, ramp rate 5°C/sec
  • Electrical Characteristics: 50A at 32VAC/DC, 35A at 63VDC, 24A at 12VAC

Buy the Buy Littelfuse 438 Series Surface Mount Ceramic Fuse Part Number 0438001WR Online

Purchase the Littelfuse 438 Series ceramic fuse online for reliable overcurrent protection in high-temperature environments. Designed for surface mounting, this fast-acting fuse is suitable for handheld electronics, LCD displays, memory cards, and battery packs. With a rated current range of 0.25A to 6A and voltage up to 63VDC, it withstands high inrush currents and ensures circuit safety. Its advanced ceramic body provides moisture resistance, and it’s compatible with reflow and wave soldering. Ideal for manufacturers seeking durable, high-performance fuses.

Get Littelfuse 0438001WR today—built for high-temperature stability and fast overcurrent protection in small electronic devices.

Frequently Asked Questions

Where can I buy Littelfuse 0438001WR?

You can click on the BUY or RFQ button to purchase 0438001WR from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part 0438001WR?

You can download the 0438001WR datasheet or visit the Littelfuse website for support.

Who is the manufacturer of 0438001WR?

Littelfuse

Littelfuse Part List

Browse and search other Littelfuse parts, locate datasheets and stock

Sponsored by