Littelfuse 0154002.DRTL Surface Mount Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0154002.DRTL is a 2A 125VAC/VDC board mount surface mount fuse in the OMNI-BLOK® 154TL series. This component is designed for circuit protection in applications requiring slow-blow response characteristics with surface mount installation. The part is actively manufactured and stocked, with 1477 units available in Tape & Reel packaging. Substitute parts become necessary when specific packaging formats are required for manufacturing processes, inventory optimization, or supply chain flexibility while maintaining identical electrical and mechanical performance.

Substiute Parts

0154002.DRTL

Littelfuse Inc.In Stock: 15440154002.DRTL Datasheet

Current PartRFQ

0154002.DRT

Littelfuse Inc.In Stock: 79600154002.DRT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse 0154002.DRT qualifies as a parametric equivalent to the 0154002.DRTL based on identical electrical and mechanical specifications. Substitution is valid when the following criteria are met:

• Current Rating: 2 A (identical)
• Voltage Rating: 125 V AC / 125 V DC (identical)
• Response Time: Slow Blow (identical)
• Mounting Type: Requires Holder, Surface Mount (identical)
• Package / Case: 2-SMD, Square End Block with Holder (identical)
• Breaking Capacity: 50 A (identical)
• Melting I²t: 8.2 (identical)
• Operating Temperature Range: -55°C ~ 125°C (identical)
• DC Cold Resistance: 0.0625 Ohms (identical)
• Approval Agencies: PSE, UL (identical)
• RoHS Compliance: ROHS3 Compliant (identical)

The primary difference between these parts is packaging format: the main part (0154002.DRTL) is supplied in Tape & Reel format, while the substitute (0154002.DRT) is available in Cut Tape and Digi-Reel® formats. This distinction affects procurement and assembly processes but does not alter component performance or compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 0154002.DRTL and 0154002.DRT are active products manufactured by Littelfuse Inc. with identical electrical performance and mechanical compatibility. Selection between these parts should be based on packaging requirements and supply chain considerations:

The 0154002.DRTL in Tape & Reel format is suitable for high-volume automated assembly operations where continuous reel feeding is standard. The 0154002.DRT in Cut Tape and Digi-Reel® formats provides flexibility for lower-volume production runs, mixed-component kitting, or inventory management scenarios where reel quantities exceed immediate requirements.

Both parts carry PSE and UL approvals, ROHS3 compliance, and identical thermal and electrical specifications. No performance degradation or functional limitation occurs when substituting between these packaging variants. The choice is determined by manufacturing process compatibility and procurement logistics rather than technical performance criteria.

Frequently Asked Questions (FAQ)

Q: Can 0154002.DRT be used as a direct replacement for 0154002.DRTL in circuit design?

A: Yes. Both parts are electrically and mechanically identical. They share the same current rating (2A), voltage ratings (125V AC/DC), response time (Slow Blow), breaking capacity (50A), and all other critical electrical parameters. The only difference is packaging format.

Q: What is the difference between Tape & Reel and Cut Tape / Digi-Reel® packaging?

A: Tape & Reel (TR) supplies components on a continuous reel suitable for automated pick-and-place assembly. Cut Tape (CT) provides components on tape segments for manual or semi-automated handling. Digi-Reel® is a Littelfuse proprietary format. All three formats contain identical components; the difference is in delivery and handling method.

Q: Are there any thermal or environmental performance differences between these parts?

A: No. Both parts operate across the identical temperature range (-55°C to 125°C) and maintain the same DC cold resistance (0.0625 Ohms). Environmental compliance, RoHS status, and moisture sensitivity levels are identical.

Q: Which part should be selected for high-volume production?

A: The 0154002.DRTL in Tape & Reel format is optimized for high-volume automated assembly due to continuous reel feeding capability. The 0154002.DRT in Cut Tape / Digi-Reel® formats is better suited for lower volumes or mixed-component assembly scenarios.

Q: Do both parts require the same holder for installation?

A: Yes. Both parts are board mount fuses that require a holder for installation. The mechanical interface and holder compatibility are identical between the two part numbers.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical PSE and UL approvals and maintain ROHS3 compliance. REACH status and ECCN classifications are identical.