Littelfuse 0230004.DRT3SP Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230004.DRT3SP is a 4A 125VAC/VDC glass cartridge fuse with axial through-hole mounting. This component is classified as Active product status and is designed for circuit protection applications requiring slow-blow response characteristics. Equivalent and substitute parts are identified when identical electrical and mechanical parameters are maintained across different packaging configurations, enabling procurement flexibility while preserving circuit protection performance.

Substiute Parts

0230004.DRT3SP

Littelfuse Inc.In Stock: 11240230004.DRT3SP Datasheet

Current PartRFQ

0230004.DRT1P

Littelfuse Inc.In Stock: 69950230004.DRT1P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 0230004.DRT3SP is limited to parts maintaining identical electrical characteristics and mechanical dimensions. The primary differentiator between the main part and its substitute is packaging configuration. Both the main part (Tape & Reel) and the substitute part (Cut Tape) share all critical protection parameters: 4A current rating, 125VAC/125VDC voltage rating, slow-blow response, 400A breaking capacity, and identical physical dimensions. The packaging difference does not affect electrical performance or circuit protection capability. Substitution is valid only when these core parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

Both the 0230004.DRT3SP and 0230004.DRT1P are Active status products manufactured by Littelfuse Inc. with identical electrical and mechanical specifications. Selection between these parts is determined by procurement and assembly requirements rather than electrical performance. The Tape & Reel packaging (0230004.DRT3SP) is suitable for high-volume automated assembly operations. The Cut Tape packaging (0230004.DRT1P) accommodates lower-volume applications or manual assembly processes. Both parts carry equivalent regulatory approvals (CE, CSA, PSE, UL) and maintain ROHS3 compliance. Circuit protection performance is identical across both configurations.

Frequently Asked Questions (FAQ)

Q: Can the 0230004.DRT1P substitute for the 0230004.DRT3SP in production?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format. Selection depends on assembly process requirements and procurement volume.

Q: Does packaging format affect fuse performance?

A: No. Tape & Reel and Cut Tape packaging formats do not alter electrical characteristics, response time, breaking capacity, or protection performance. The fuse element and glass cartridge construction remain identical.

Q: Are regulatory approvals the same for both parts?

A: Yes. Both parts carry CE, CSA, PSE, and UL approvals and are ROHS3 compliant.

Q: What determines substitution validity for these fuses?

A: Substitution is valid when current rating, voltage rating (AC and DC), response time, breaking capacity, melting I²t, physical dimensions, and operating temperature range remain unchanged. These parameters define circuit protection capability.

Q: Can these parts be used interchangeably in the same circuit design?

A: Yes. Identical electrical specifications and physical dimensions ensure functional interchangeability. Assembly process compatibility with packaging format should be confirmed.