Littelfuse 0154.375DRL Surface Mount Board Mount Fuse

Part Overview

The Littelfuse 0154.375DRL is a surface mount board mount fuse rated at 375 mA with 125 V AC/DC voltage rating. This component belongs to the OMNI-BLOK® 154L series and is designed for applications requiring fast-blow fuse protection in compact form factors. The part is actively manufactured and maintained in production inventory. Alternative equivalent parts may be required due to supply chain considerations, design revisions, or inventory availability across different procurement channels.

Substiute Parts

0154.375DRL

Littelfuse Inc.In Stock: 9040154.375DRL Datasheet

Current PartRFQ

0154.375DR

Littelfuse Inc.In Stock: 37420154.375DR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0154.375DRL is determined by strict equivalence across the following critical parameters:

• Current Rating: 375 mA (exact match required)
• Voltage Rating: 125 V AC and 125 V DC (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Requires Holder, Surface Mount (exact match required)
• Package / Case: 2-SMD, Square End Block with Holder (exact match required)
• Breaking Capacity @ Rated Voltage: 50A (exact match required)
• Approval Agency: UL (exact match required)

The identified substitute part maintains identical electrical and mechanical specifications, differing only in series designation and internal manufacturing revision level. Both parts are manufactured by Littelfuse Inc. and are actively produced.

Parameter Comparison

Engineering Selection Recommendations

Both the 0154.375DRL and 0154.375DR are active production parts manufactured by Littelfuse Inc. with identical electrical and mechanical specifications. Both parts carry UL approval and maintain ROHS3 compliance. The substitute part 0154.375DR represents a functionally equivalent alternative with no performance degradation across all specified parameters. Selection between these parts may be based on inventory availability, procurement lead times, or design revision requirements, as all critical performance and compliance characteristics are identical.

Frequently Asked Questions (FAQ)

Q: Can the 0154.375DR be used as a direct replacement for the 0154.375DRL?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters including current rating, voltage rating, response time, package type, and breaking capacity. The parts differ only in series designation (154L versus 154).

Q: Are there any compatibility concerns when substituting between these parts?

A: No compatibility concerns exist. Both parts require the same holder type, use identical surface mount packaging, and maintain the same physical dimensions (0.383" L x 0.198" W x 0.150" H).

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both parts carry UL approval and are ROHS3 compliant. Moisture sensitivity level and REACH status are identical for both parts.

Q: What is the difference between the OMNI-BLOK® 154L and OMNI-BLOK® 154 series?

A: The series designation reflects internal manufacturing revision levels. Both series maintain identical electrical and mechanical specifications for this current rating and voltage class.

Q: Are there any temperature or environmental performance differences?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C and maintain the same DC cold resistance of 0.61 Ohms and melting I²t value of 0.0425.