Equivalent & Substitute Parts for Littelfuse 0213005.MRET1P Glass Cartridge Fuse

Part Overview

The Littelfuse 0213005.MRET1P is a 5 A, 250 V AC/DC glass cartridge fuse with slow-blow response characteristics, designed for through-hole mounting in 5mm x 20mm form factor applications. This part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued circuit protection functionality.

Substiute Parts

0213005.MRET1P

Littelfuse Inc.In Stock: 9540213005.MRET1P Datasheet

Current PartRFQ

0213005.MXEP

Littelfuse Inc.In Stock: 16190213005.MXEP Datasheet

DirectRFQ

0218005.MRET1P

Littelfuse Inc.In Stock: 7540218005.MRET1P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 0213005.MRET1P is determined by strict equivalence across the following critical parameters: current rating (5 A), voltage rating (250 V AC), fuse type (cartridge glass), response time (slow blow), physical dimensions (5mm x 20mm), and mounting configuration (through hole). All identified substitutes maintain these core electrical and mechanical specifications, ensuring direct functional replacement without circuit redesign.

The substitute parts are grouped as follows:

Direct Manufacturer Equivalent: 0213005.MXEP (Littelfuse Series 213, active status, bulk packaging)

Parametric Equivalent: 0218005.MRET1P (Littelfuse Series 218, active status, cut tape packaging)

Parameter Comparison

Engineering Selection Recommendations

0213005.MXEP is the primary substitute for the obsolete 0213005.MRET1P. Both parts belong to the Littelfuse Series 213 and maintain identical electrical specifications, physical dimensions, and thermal characteristics. The 0213005.MXEP holds active product status and is available in bulk packaging, providing long-term supply continuity.

0218005.MRET1P serves as a secondary parametric equivalent from the Littelfuse Series 218. This part maintains all critical electrical and mechanical parameters with active product status and cut tape packaging availability. The DC cold resistance differential (0.0104 Ohms versus 0.0116 Ohms) remains within acceptable tolerance for cartridge fuse applications and does not affect circuit protection performance.

Both substitutes carry ROHS3 compliance and equivalent regulatory approvals (BSI, CCC, CE, CSA, PSE, SEMKO, VDE), ensuring compliance with environmental and safety standards.

Frequently Asked Questions (FAQ)

Q: Can 0213005.MXEP directly replace 0213005.MRET1P in existing designs?

A: Yes. Both parts are Littelfuse Series 213 fuses with identical current rating (5 A), voltage rating (250 V AC), response time (slow blow), and physical dimensions (5mm x 20mm). The difference in packaging (bulk versus original) does not affect electrical or mechanical compatibility.

Q: What is the difference between 0213005.MXEP and 0218005.MRET1P?

A: Both are functionally equivalent 5 A, 250 V slow-blow cartridge fuses in 5mm x 20mm form factor. The primary differences are series designation (213 versus 218) and packaging format (bulk versus cut tape). The DC cold resistance of 0218005.MRET1P is 0.0104 Ohms compared to 0.0116 Ohms for 0213005.MXEP, a variance that does not impact circuit protection functionality.

Q: Are there any regulatory or compliance differences between the substitutes?

A: All three parts maintain ROHS3 compliance. The 0213005.MXEP and 0213005.MRET1P share identical approval agencies (BSI, CCC, CE, CSA, PSE, SEMKO, UR, VDE). The 0218005.MRET1P carries approvals from CCC, CE, CSA, K-MARK, PSE, SEMKO, UL, and VDE. Both substitute parts satisfy regulatory requirements for the application.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (bulk, cut tape, or reel) is a supply chain consideration and does not alter the electrical characteristics or performance of the fuse element itself.

Q: What is the melting I²t specification, and does it differ between parts?

A: The melting I²t for 0213005.MRET1P and 0213005.MXEP is 314. The 0218005.MRET1P has a melting I²t of 111. This parameter reflects the thermal energy required to melt the fuse element. Both values are within the acceptable range for 5 A slow-blow cartridge fuses and do not prevent substitution.