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0242.100UR Littelfuse 242 Series 100mA 250VAC/VDC fast blow cartridge fuse with 4kA interrupting rating, surface mount package, cURus approved, RoHS compliant.
Mfr Part #:

0242.100UR

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Littelfuse 242 Series 100mA 250VAC/VDC fast blow cartridge fuse with 4kA interrupting rating, surface mount package, cURus approved, RoHS compliant.
Total Stock: 95 pcs

0242.100UR Available from 1 distributors

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95 pcs
95 pcs On Request 1 On Request On Request On Request On Request On Request

0242.100UR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Approval Agency
Breaking Capacity
Breaking Capacity @ Rated Voltage
Current Rating
Current Rating (Amps)
Features
Fuse Type
Halogen Free
Interrupting Rating
Mounting Type
Nominal Cold Resistance
Nominal Melting I²t
Operating Temperature
Package / Case
Response Time
Size
Size / Dimension
Tape & Reel
Voltage Rating

0242.100UR Description

Short technical summary and product information.

The Littelfuse 0242.100UR is a 100mA, 250VAC/VDC fast blow cartridge fuse from the 242 Series, designed for intrinsic safety protection in hazardous location equipment. It features a high interrupting rating of 4000A at 250VAC/VDC, making it suitable for barrier circuits requiring robust overcurrent protection.

 

This surface mount fuse is packaged in a non-standard cartridge case measuring 0.119" diameter by 0.331" length (3.02mm x 8.40mm). It operates over a temperature range of -40°C to 125°C and has a nominal cold resistance of 3.6 ohms with a melting I²t of 0.000977 A²s. The fast blow response time ensures rapid clearing of overcurrent conditions.

 

Designed for hazardous location applications, the 242 Series fuse carries cURus approval and is RoHS compliant and halogen-free. Its high interrupting rating of 4kA supports intrinsic safety barrier circuits where reliable overcurrent protection is critical.

0242.100UR Quick Information

Product Type: Cartridge Fuse
Series: 242
Canonical Name: Littelfuse 242 Series 100mA 250V Fast Blow Cartridge Fuse
Subcategory: Specialty Fuse

0242.100UR Compliance

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

0242.100UR Features

  • 100mA current rating, 250VAC/VDC voltage rating.
  • Fast blow response time for rapid overcurrent clearing.
  • 4kA interrupting rating for high fault currents.
  • Surface mount package, 0.119" x 0.331" size.
  • cURus approved, RoHS compliant, halogen-free.

0242.100UR Applications

  • Intrinsic safety barrier circuits in hazardous locations.
  • Overcurrent protection for hazardous location equipment.
  • Barriers providing intrinsically safe outputs.

0242.100UR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the 0242.100UR?

The current rating is 100mA (0.1A).

What is the voltage rating of this fuse?

The voltage rating is 250VAC/VDC.

What is the breaking capacity?

The breaking capacity is 4000A (4kA) at 250VAC/VDC.

What is the response time?

The response time is fast blow.

What package does this fuse come in?

It comes in a surface mount cartridge, non-standard package measuring 0.119" diameter by 0.331" length (3.02mm x 8.40mm).

What is the operating temperature range?

The operating temperature range is -40°C to 125°C.

What approvals does this fuse have?

It is cURus approved, RoHS compliant, and halogen-free.

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