Littelfuse 0154007.DRL Surface Mount Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0154007.DRL is a 7A 125VAC/VDC surface mount board fuse in the OMNI-BLOK® 154L series. This fast-blow fuse is designed for circuit protection in applications requiring reliable overcurrent protection with a 50A breaking capacity at rated voltage. The part is actively manufactured and widely stocked, with 2043 units available in Tape & Reel packaging. Substitute parts are identified when packaging format changes, inventory constraints occur, or alternative distribution channels are required while maintaining identical electrical and mechanical performance.

Substiute Parts

0154007.DRL

Littelfuse Inc.In Stock: 21020154007.DRL Datasheet

Current PartRFQ

0154007.DR

Littelfuse Inc.In Stock: 152720154007.DR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse 0154007.DR is classified as a parametric equivalent to the 0154007.DRL. Substitution is valid based on the following criteria:

Electrical Parameters (Identical):

• Current Rating: 7 A
• Voltage Rating (AC/DC): 125 V
• Response Time: Fast Blow
• Breaking Capacity: 50 A
• Melting I²t: 10.32
• DC Cold Resistance: 0.009 Ohms

Mechanical Parameters (Identical):

• Mounting Type: Requires Holder, Surface Mount
• Package / Case: 2-SMD, Square End Block with Holder
• Physical Dimensions: 0.383" L x 0.198" W x 0.150" H

Environmental & Compliance (Identical):

• Operating Temperature Range: -55°C ~ 125°C
• Approval Agency: PSE, UL
• RoHS Status: ROHS3 Compliant
• MSL: 1 (Unlimited)

Difference:

• Packaging Format: 0154007.DRL supplied in Tape & Reel (TR); 0154007.DR supplied in Cut Tape (CT) & Digi-Reel®

The substitution is valid because all electrical, mechanical, and environmental specifications are identical. The packaging difference does not affect functional performance or board-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 0154007.DRL and 0154007.DR are active products manufactured by Littelfuse Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on packaging and supply chain requirements:

0154007.DRL (Tape & Reel): Suitable for high-volume automated assembly operations where continuous reel feeding is required. Recommended for production environments with established tape-and-reel handling infrastructure.

0154007.DR (Cut Tape & Digi-Reel®): Suitable for lower-volume production, prototyping, or applications where flexible packaging formats are advantageous. Digi-Reel® packaging provides enhanced traceability and handling flexibility.

Both parts carry identical PSE and UL approvals, ROHS3 compliance, and unlimited moisture sensitivity rating (MSL 1), ensuring equivalent regulatory and environmental performance in any application context.

Frequently Asked Questions (FAQ)

Q: Can 0154007.DR be used as a direct replacement for 0154007.DRL on the same PCB assembly?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. Once soldered to the board, the parts are functionally equivalent. Packaging differences do not affect board-level performance or compatibility.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Tape & Reel (TR) supplies components on a continuous reel suitable for automated pick-and-place equipment. Cut Tape (CT) & Digi-Reel® provides components in smaller quantities with enhanced traceability. Both formats contain the same component; the difference is in supply and handling methodology.

Q: Are the electrical specifications identical between these two part numbers?

A: Yes. Current rating (7A), voltage rating (125VAC/VDC), response time (Fast Blow), breaking capacity (50A), melting I²t (10.32), and DC cold resistance (0.009 Ohms) are identical across both parts.

Q: Do both parts have the same physical dimensions?

A: Yes. Both parts measure 0.383" L x 0.198" W x 0.150" H (9.73mm x 5.03mm x 3.81mm) and use identical 2-SMD, Square End Block with Holder packaging.

Q: Are both parts RoHS compliant?

A: Yes. Both 0154007.DRL and 0154007.DR are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which part should I select for high-volume production?

A: The 0154007.DRL (Tape & Reel) is optimized for high-volume automated assembly. The 0154007.DR (Cut Tape & Digi-Reel®) is better suited for lower-volume or flexible production scenarios.