Littelfuse 0215.315TXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0215.315TXP is a 315 mA ceramic cartridge fuse rated for 250 V AC/DC operation in a 5mm x 20mm form factor. This slow-blow fuse is designed for applications requiring circuit protection with a 1.5 kA breaking capacity. The part is active in production and widely stocked, making it suitable for new designs and replacement applications. Equivalent and substitute parts are identified when identical electrical and mechanical parameters are maintained across manufacturers or product lines.

Substiute Parts

0215.315TXP

Littelfuse Inc.In Stock: 10110215.315TXP Datasheet

Current PartRFQ

0215.315MXP

Littelfuse Inc.In Stock: 168150215.315MXP Datasheet

Parametric EquivalentRFQ

TCD-315MA

OptiFuseIn Stock: 3943TCD-315MA Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0215.315TXP are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitutability:

• Current Rating: 315 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Slow Blow (exact match required)
• Package Dimensions: 5mm x 20mm (exact match required)
• Breaking Capacity: 1.5 kA (exact match required)
• Melting I²t: 0.975 (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• Mounting Configuration: Requires Holder (exact match required)

Two substitute parts meet all substitution criteria: the Littelfuse 0215.315MXP and the OptiFuse TCD-315MA. Both maintain identical electrical performance and mechanical compatibility with the original part.

Parameter Comparison

Engineering Selection Recommendations

All three parts—0215.315TXP, 0215.315MXP, and TCD-315MA—are active products with full RoHS3 compliance. The Littelfuse 0215.315MXP provides direct manufacturer equivalence with identical specifications and certifications (CE, SEMKO, UL, VDE). The OptiFuse TCD-315MA meets all electrical and mechanical requirements with IEC 60127 certification, offering an alternative from a different manufacturer while maintaining functional compatibility.

Selection between these parts should be based on availability, supply chain considerations, and certification requirements specific to the application. All three parts are suitable for direct substitution in circuits designed for 315 mA, 250 V AC/DC ceramic cartridge fuse protection.

Frequently Asked Questions (FAQ)

Q: Can the 0215.315MXP directly replace the 0215.315TXP?

A: Yes. Both parts are manufactured by Littelfuse, share identical electrical ratings (315 mA, 250 V AC/DC), ceramic cartridge construction, slow-blow response, 5mm x 20mm dimensions, 1.5 kA breaking capacity, and operating temperature range. They are parametric equivalents.

Q: Is the OptiFuse TCD-315MA compatible with applications designed for the 0215.315TXP?

A: Yes. The TCD-315MA matches all critical electrical and mechanical parameters: 315 mA current rating, 250 V AC/DC voltage rating, ceramic cartridge type, slow-blow response, 5mm x 20mm package, 1.5 kA breaking capacity, and -55°C to 125°C operating range. It is mechanically and electrically interchangeable.

Q: What are the key parameters that determine if a fuse can substitute for the 0215.315TXP?

A: Substitution requires exact matching of: current rating (315 mA), voltage rating (250 V AC), fuse type (ceramic cartridge), response time (slow blow), package dimensions (5mm x 20mm), breaking capacity (1.5 kA), and operating temperature range (-55°C to 125°C).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The 0215.315TXP, 0215.315MXP, and TCD-315MA are all ROHS3 compliant, meeting environmental and material restriction requirements.

Q: Do these fuses require a specific holder?

A: Yes. All three parts are cartridge fuses that require a holder for installation. The 5mm x 20mm form factor is standard for this fuse category.