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0481.500H Alarm indicating fuse rated 500mA at 125VAC/VDC with fast blow response and red trip indicator.
Mfr Part #:

0481.500H

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Alarm indicating fuse rated 500mA at 125VAC/VDC with fast blow response and red trip indicator.
✓ Total Stock: 31 pcs

0481.500H Available from 1 distributor

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✓ Non-Authorised
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0481.500H Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Approval Agency
Breaking Capacity @ Rated Voltage
Current Rating (Amps)
Features
Fuse Type
Height
Industrial Grade
Length
Mounting Type
Operating Temperature
Response Time
Tape & Reel
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Width
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0481.500H Description

Short technical summary and product information.

The Littelfuse 0481.500H is a 500mA alarm indicating fuse from the 481 series, designed for telecom and other specialty applications. It operates at a maximum voltage of 125VAC and 125VDC with a breaking capacity of 300A at 125VAC and 200A at 125VDC. The fuse provides fast blow protection with a nominal cold resistance of 1.52 ohms and a nominal melting I2t of 0.49 A2 Sec.

 

The body is constructed from black polyphenylene sulfide with a UL 94 V-0 flammability rating, and features a red color-coded indicator flag for quick identification of the blown state. The fuse requires a holder for mounting and has dimensions of 16.90mm length, 5.80mm width, and 19.60mm height. It is approved by CSA and UR agencies, and is RoHS compliant.

0481.500H Quick Information

Product Type: Alarm Indicating Fuse
Series: 481
Canonical Name: 0481.500H Littelfuse Alarm Indicating Fuse 500mA 125V
Subcategory: Electrical, Specialty Fuses

0481.500H Compliance

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

0481.500H Features

  • Red indicator flag shows blown fuse.
  • Rated for 500mA at 125VAC/VDC.
  • Fast blow response for sensitive circuits.
  • Body has UL 94 V-0 flammability rating.
  • Requires holder for secure mounting.

0481.500H Applications

  • Used in telecom power distribution systems.
  • Protects alarm and monitoring circuits.
  • Ideal for panel and industrial control gear.
  • Suitable for DC power supply protection.

0481.500H FAQs

7 frequently asked questions generated from this part’s specifications.
What is the voltage rating of the 0481.500H fuse?

125 VAC and 125 VDC.

What is the current rating of this fuse?

500mA (0.5 A).

What is the breaking capacity of the 0481.500H?

300A at 125 VAC and 200A at 125 VDC.

Is this fuse fast-acting or slow-blow?

Fast blow response.

What package or mounting style does the 0481.500H use?

Alarm indicator package, requires holder.

Does the fuse provide a blown indication?

Yes, it has a red indicating flag.

What is the operating temperature range?

-55°C to 125°C.

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