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0429001.WRM Littelfuse 0429001.WRM is a 1A, 63V fast blow surface mount fuse in a 1206 package. It features a 50A interrupting rating and is UL and CSA recognized.
Mfr Part #:

0429001.WRM

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 0429001.WRM is a 1A, 63V fast blow surface mount fuse in a 1206 package. It features a 50A interrupting rating and is UL and CSA recognized.
Total Stock: 1,915 pcs
$ Price Range: $0.37

0429001.WRM 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
1,915 pcs
1915 pcs On Request 1 On Request On Request 12+ On Request On Request

0429001.WRM Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Agency File Numbers
Approval Agency
Body Material
Cold Resistance
Cover Coat
Current Rating (Amps)
Fuse Type
Height
Insulation Resistance After Opening
Interrupting Rating
Length
Melting I²t
Mounting Type
Opening Time (Maximum @ 200% of rated current, 25 °C)
Opening Time (Maximum @ 300% of rated current, 25 °C)
Opening Time (Minimum @ 100% of rated current, 25 °C)
Operating Temperature
Reflow Solder Temperature
Resistance to Soldering Heat
Response Time
Tape & Reel
Termination Material
Thermal Shock
Vibration Resistance
Voltage Rating
Width

0429001.WRM Description

Short technical summary and product information.

The Littelfuse 0429001.WRM is a 1A, 63V fast-acting surface mount fuse from the 429 series. It is designed for board-level overcurrent protection in a compact 1206 (3216 Metric) package. The fuse has a fast blow response time, opening within 5 seconds at 200% of rated current and within 0.2 seconds at 300% of rated current.

 

This fuse offers a 50A interrupting rating at rated voltage, suitable for protecting sensitive circuits. It features a cold resistance of 0.0995 Ohm and a melting I²t of 0.035 A²s. The operating temperature range is -55°C to 90°C.

 

The 0429001.WRM is constructed with an epoxy substrate body, copper/nickel/tin-lead terminations, and a conformal coating. It is designed for surface mount soldering with a reflow temperature of 260°C for 30 seconds maximum. The fuse is recognized by UL (file E10480) and certified by CSA (file LR 29862).

0429001.WRM Quick Information

Product Type: Surface Mount Fuse
Series: 429
Canonical Name: Littelfuse 429 Series 1A 63V Fast Blow Surface Mount Fuse, 1206 Package
Subcategory: Fast Blow Surface Mount Fuse

0429001.WRM Compliance

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

0429001.WRM Estimated Pricing

Qty Low High
3,000+ $0.37 $0.37

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

0429001.WRM Features

  • Fast blow response time for sensitive circuits.
  • Rated for 1A at 63V AC/DC operation.
  • 50A interrupting rating at rated voltage.
  • Surface mount 1206 (3216 Metric) package.
  • UL and CSA agency approved.

0429001.WRM Applications

  • Overcurrent protection for board-level circuits.
  • Ideal for compact consumer electronics designs.
  • Used in industrial control and automation systems.
  • Suitable for power supply and DC-DC converter protection.

0429001.WRM FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0429001.WRM fuse?

The current rating is 1 A.

What is the voltage rating of this fuse?

The voltage rating is 63 V AC/DC.

What is the response time of the 0429001.WRM?

It is a fast blow (very fast-acting) fuse. It opens within 5 seconds maximum at 200% of rated current and within 0.2 seconds maximum at 300% of rated current.

What is the package size of this fuse?

The package is 1206 (3216 Metric), with dimensions 3.18mm x 1.52mm x 1.14mm.

What is the interrupting rating of the 0429001.WRM?

The interrupting rating is 50 A at rated voltage (63 V).

What is the operating temperature range?

The operating temperature range is -55°C to 90°C.

What agency approvals does this fuse have?

It is recognized by UL (file E10480) and certified by CSA (file LR 29862).

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