Littelfuse 015401.5DRTL Surface Mount Board Mount Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 015401.5DRTL is a 1.5 A, 125 V AC/DC surface mount board mount fuse in the OMNI-BLOK® 154TL series. This slow blow fuse is designed for applications requiring overcurrent protection in compact form factors with integrated holder requirements. The part is actively manufactured and stocked, with full compliance to RoHS3, PSE, and UL standards. Substitute parts are identified when packaging configurations differ while maintaining identical electrical and mechanical specifications, allowing flexibility in procurement and supply chain management.

Substiute Parts

015401.5DRTL

Littelfuse Inc.In Stock: 1058015401.5DRTL Datasheet

Current PartRFQ

015401.5DRT

Littelfuse Inc.In Stock: 2028015401.5DRT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 015401.5DRTL are identified based on electrical and mechanical parameter equivalence. The primary substitution criterion is packaging configuration. The 015401.5DRTL is supplied in Tape & Reel (TR) packaging, while the substitute part 015401.5DRT is supplied in Cut Tape (CT) & Digi-Reel® packaging. Both parts maintain identical electrical ratings, response characteristics, physical dimensions, thermal performance, and regulatory compliance. The substitution is valid when procurement requirements or supply chain constraints necessitate alternative packaging formats without compromising circuit protection performance.

Key parameters determining substitution eligibility:

• Current Rating: 1.5 A
• Voltage Rating: 125 V AC / 125 V DC
• Response Time: Slow Blow
• Breaking Capacity: 50 A
• Melting I²t: 3.65
• Physical Dimensions: 0.383" L x 0.198" W x 0.150" H
• Regulatory Compliance: PSE, UL, RoHS3

Parameter Comparison

Engineering Selection Recommendations

Both the 015401.5DRTL and 015401.5DRT are active products manufactured by Littelfuse Inc. with full regulatory compliance to PSE and UL standards. Selection between these parts should be based on packaging requirements and supply chain availability. The 015401.5DRTL in Tape & Reel packaging is suitable for high-volume automated assembly processes. The 015401.5DRT in Cut Tape & Digi-Reel® packaging provides flexibility for lower-volume applications or when standard reel configurations are not required. Both parts carry identical electrical performance characteristics and thermal ratings, ensuring functional equivalence in circuit protection applications.

Frequently Asked Questions (FAQ)

Q: Can the 015401.5DRT be used as a direct replacement for the 015401.5DRTL?

A: Yes. Both parts are electrically and mechanically identical with matching current ratings (1.5 A), voltage ratings (125 V AC/DC), response time (Slow Blow), breaking capacity (50 A), and physical dimensions. The only difference is packaging format: Tape & Reel versus Cut Tape & Digi-Reel®.

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

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, optimized for high-speed automated pick-and-place assembly. Cut Tape (CT) & Digi-Reel® packaging provides components on tape segments or alternative reel formats, suitable for lower-volume production or manual assembly processes.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the 015401.5DRTL and 015401.5DRT are ROHS3 compliant and carry PSE and UL regulatory approvals.

Q: What is the Moisture Sensitivity Level (MSL) for these fuses?

A: Both parts have an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these fuses operate across the full temperature range in both AC and DC applications?

A: Yes. Both parts are rated for operation from -55°C to 125°C in both 125 V AC and 125 V DC applications.