Littelfuse 02163.15MXP Ceramic Fuse 3.15A 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 02163.15MXP is a fast-blow ceramic cartridge fuse rated for 3.15 A at 250 V AC/DC with a 5mm x 20mm form factor. This component is designed for circuit protection in industrial and commercial applications requiring reliable overcurrent interruption. The part maintains active product status with full RoHS3 compliance and international safety certifications. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, response characteristics, and regulatory approvals to ensure direct interchangeability in existing designs.

Substiute Parts

02163.15MXP

Littelfuse Inc.In Stock: 1667902163.15MXP Datasheet

Current PartRFQ

0001.1009

SCHURTER Inc.In Stock: 43680001.1009 Datasheet

DirectRFQ

5HF 3.15-R

Bel Fuse Inc.In Stock: 43985HF 3.15-R Datasheet

DirectRFQ

BK/S501-3.15-R

Eaton - Electronics DivisionIn Stock: 1291BK/S501-3.15-R Datasheet

DirectRFQ

S501-3.15-R

Eaton - Electronics DivisionIn Stock: 881S501-3.15-R Datasheet

MFR RecommendedRFQ

FCD-3.15A

OptiFuseIn Stock: 948FCD-3.15A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Littelfuse 02163.15MXP is determined by strict equivalence across the following parameters:

• Current Rating: 3.15 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Response Time: Fast Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 1.5 kA (exact match required)
• Mounting Type: Requires Holder (exact match required)

All identified substitute parts meet these criteria and are classified as direct equivalents suitable for one-to-one replacement in circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and meet the core electrical and mechanical requirements for direct replacement of the Littelfuse 02163.15MXP. Selection among equivalents should be based on the following factors:

Certification Coverage: The Eaton S501-3.15-R (manufacturer recommended) and Bel Fuse 5HF 3.15-R provide the broadest international approval agency coverage, including BSI, CCC, CSA, cURus, IMQ, MITI/JET, SEMKO, and VDE certifications. The SCHURTER 0001.1009 and OptiFuse FCD-3.15A provide adequate coverage for most applications with CCC, VDE, and regional certifications.

Thermal Characteristics: The Littelfuse 02163.15MXP, SCHURTER 0001.1009, and OptiFuse FCD-3.15A specify operating temperature ranges of -55°C to 125°C. The Eaton variants do not specify operating temperature limits in the provided data.

Melting I²t Variation: Melting I²t values range from 4.271 (OptiFuse FCD-3.15A) to 12 (Bel Fuse 5HF 3.15-R). The Littelfuse 02163.15MXP (6.7) and SCHURTER 0001.1009 (6.78) exhibit closely matched thermal characteristics. The OptiFuse FCD-3.15A exhibits faster thermal response, while the Bel Fuse 5HF 3.15-R exhibits slower thermal response. Selection should align with application-specific thermal requirements.

DC Voltage Rating: The OptiFuse FCD-3.15A explicitly specifies 250 V DC rating. Other parts specify AC ratings only. For DC applications, the OptiFuse FCD-3.15A provides explicit dual-voltage certification.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 0001.1009 be used as a direct replacement for the Littelfuse 02163.15MXP?

A: Yes. The SCHURTER 0001.1009 matches all critical electrical and mechanical parameters: 3.15 A current rating, 250 V AC voltage rating, fast-blow ceramic cartridge type, 5mm x 20mm package, 1.5 kA breaking capacity, and -55°C to 125°C operating temperature range. Both parts are RoHS3 compliant and active products.

Q: What is the difference between the Eaton S501-3.15-R and BK/S501-3.15-R?

A: Both parts share identical electrical ratings, mechanical dimensions, and core specifications. The primary difference is MSL (Moisture Sensitivity Level) classification: the S501-3.15-R is classified as Not Applicable, while the BK/S501-3.15-R is classified as MSL 1 (Unlimited). For standard applications, either variant is suitable. The MSL designation affects storage and handling requirements for moisture-sensitive environments.

Q: Why does the OptiFuse FCD-3.15A have a lower melting I²t value than other equivalents?

A: The OptiFuse FCD-3.15A exhibits a melting I²t of 4.271 compared to 6.7-12 for other equivalents. This indicates faster thermal response and earlier fuse element melting under overcurrent conditions. Selection should be based on application-specific thermal coordination requirements. The lower I²t value does not indicate inferior quality but rather different thermal characteristics suitable for specific circuit protection schemes.

Q: Are all substitute parts suitable for both AC and DC applications?

A: The Littelfuse 02163.15MXP, SCHURTER 0001.1009, Bel Fuse 5HF 3.15-R, and Eaton variants specify 250 V AC ratings. The OptiFuse FCD-3.15A explicitly specifies dual ratings of 250 V AC and 250 V DC. For DC applications, the OptiFuse FCD-3.15A provides explicit certification. For AC applications, all parts are suitable.

Q: What holder type is required for these fuses?

A: All identified parts require a 5mm x 20mm fuse holder. The fuses are cartridge-type components designed for use in standardized fuse holders. Verify holder compatibility with your specific application before installation.

Q: Do all substitute parts meet the same international safety standards?

A: All parts are RoHS3 compliant and carry multiple international certifications. The Eaton S501-3.15-R provides the broadest certification coverage including BSI, CCC, CSA, cURus, IMQ, MITI/JET, SEMKO, and VDE. The SCHURTER 0001.1009 carries CCC, cURus, KC, PSE/JET, and VDE certifications. Verify specific certification requirements for your application region before selection.