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0501020.WR Surface mount fuse rated 20A at 32VDC with fast-acting response. Packaged in a 1206 (3216 metric) ceramic body with operating temperature range -55°C to 150°C.
Mfr Part #:

0501020.WR

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Surface mount fuse rated 20A at 32VDC with fast-acting response. Packaged in a 1206 (3216 metric) ceramic body with operating temperature range -55°C to 150°C.
Total Stock: 20 pcs
$ Price Range: $0.49 - $1.03

0501020.WR 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 On Request On Request On Request On Request On Request

0501020.WR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Approval Agency
Automotive Grade
Breaking Capacity @ Rated Voltage
Current Rating (Amps)
Fuse Type
Halogen Free
Height
Industrial Grade
Length
Medical Grade
Melting I²t
Military Grade
Mounting Type
Nominal Power Dissipation
Nominal Resistance
Nominal Voltage Drop
Operating Temperature
Response Time
SVHC Present
Tape & Reel
Termination Style
Voltage Rating
Width

0501020.WR Description

Short technical summary and product information.

The Littelfuse 0501020.WR is a 20A, 32V surface mount ceramic fuse from the 501 Series, designed for high current over-current protection in demanding environments. It features a fast-acting (fast-blow) response time suitable for circuits requiring quick interruption of overcurrents. The fuse is housed in a 1206 (3216 metric) package and is fully compatible with surface mount assembly processes.

 

Electrically, the fuse offers a breaking capacity of 150A at 32VDC, ensuring reliable fault interruption. Key electrical characteristics include a nominal resistance of 0.00194 ohms, a nominal melting I²t of 86.360 A²sec, and a nominal voltage drop of 0.05888V at rated current. The power dissipation is 1.1776W at rated current. The fuse operates over a wide temperature range from -55°C to 150°C, making it suitable for high-temperature applications.

 

This fuse is 100% lead-free, RoHS compliant, and halogen-free. It holds CSA and UL agency approvals. The ceramic construction provides excellent temperature stability and performance reliability. Typical applications include voltage regulator modules (VRM), notebook PCs, and DC-DC converters.

0501020.WR Quick Information

Product Type: Fuse
Series: 501
Canonical Name: Surface Mount Fuse, 20A, 32V, Fast-Acting, 1206
Subcategory: Ceramic Fuse

0501020.WR Compliance

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

0501020.WR Estimated Pricing

Qty Low High
1+ $1.03 $1.03
5+ $0.91 $0.91
10+ $0.79 $0.79
50+ $0.67 $0.67
100+ $0.55 $0.55
250+ $0.50 $0.50
500+ $0.49 $0.49
3,000+ $0.49 $0.49

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

0501020.WR Features

  • Rated 20A at 32VDC with fast-acting response.
  • Surface mount 1206 (3216 metric) ceramic package.
  • Operating temperature range -55°C to 150°C.
  • 100% lead-free, RoHS and halogen-free compliant.
  • Breaking capacity 150A at 32VDC.

0501020.WR Applications

  • Voltage regulator module (VRM) over-current protection.
  • Notebook PC power supply circuits.
  • DC-DC converter input and output protection.

0501020.WR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0501020.WR fuse?

The current rating is 20 A.

What is the voltage rating of the 0501020.WR fuse?

The voltage rating is 32 V.

What is the breaking capacity of the 0501020.WR fuse?

The breaking capacity is 150 A at 32 VDC.

What is the response time of the 0501020.WR fuse?

The response time is fast blow (fast-acting).

What is the package/case of the 0501020.WR fuse?

The package is 1206 (3216 Metric).

What is the operating temperature range of the 0501020.WR fuse?

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

What is the melting I²t of the 0501020.WR fuse?

The nominal melting I²t is 86.360 A²sec at 1 msec opening time.

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