Littelfuse 0230001.MXP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0230001.MXP is a 1 A, 250 V AC / 125 V DC glass cartridge fuse with slow-blow response characteristics, designed for through-hole mounting in non-standard axial configuration. This component is classified as Active product status and maintains full compliance with international safety standards including CE, CSA, PSE, and UL certifications. Equivalent and substitute parts are identified when identical electrical ratings, mechanical dimensions, and approval certifications align with application requirements.

Substiute Parts

0230001.MXP

Littelfuse Inc.In Stock: 20700230001.MXP Datasheet

Current PartRFQ

0230001.HXP

Littelfuse Inc.In Stock: 21420230001.HXP Datasheet

Parametric EquivalentRFQ

BK/C515-1-R

Eaton - Electronics DivisionIn Stock: 1331BK/C515-1-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Littelfuse 0230001.MXP are identified based on strict electrical and mechanical parameter alignment:

Parametric Equivalent (0230001.HXP): This Littelfuse part maintains identical electrical specifications (1 A, 250 V AC, 125 V DC), identical response time (Slow Blow), identical mechanical dimensions (0.177" Dia x 0.571" L), identical breaking capacity (35A AC, 10kA DC), and identical approval certifications (CE, CSA, PSE, UL). The only distinction is packaging origin and inventory status.

Direct Manufacturer Substitute (BK/C515-1-R): This Eaton Electronics Division part shares the core electrical ratings (1 A, 250 V AC), slow-blow response, and through-hole mounting configuration. However, this substitute operates under a different package standard (2AG, 5mm x 15mm) with slightly different physical dimensions (0.217" Dia x 0.598" L versus 0.177" Dia x 0.571" L). The breaking capacity is specified at 35A AC only, with no DC rating provided. Approval certifications are limited to CSA and UL, excluding CE and PSE. The melting I²t value (14.289) differs from the main part (5.64).

Substitution is permissible only when mechanical footprint compatibility and certification requirements align with the target application.

Parameter Comparison

Engineering Selection Recommendations

0230001.HXP (Littelfuse): This part is the direct parametric equivalent and is recommended as the primary substitute when 0230001.MXP is unavailable. All electrical specifications, mechanical dimensions, thermal operating range, and regulatory certifications are identical. This part maintains Active product status and full compliance with CE, CSA, PSE, and UL standards.

BK/C515-1-R (Eaton): This part is suitable as a secondary substitute only when the following conditions are met: (1) the application does not require DC voltage operation or can operate at reduced DC ratings; (2) the mechanical footprint can accommodate the larger 2AG package dimensions (0.217" Dia x 0.598" L); (3) CE and PSE certifications are not required by the application; (4) the higher melting I²t value (14.289 versus 5.64) is compatible with circuit protection requirements. This part maintains Active product status and CSA/UL compliance.

Frequently Asked Questions (FAQ)

Q: Can 0230001.HXP be used as a direct replacement for 0230001.MXP?

A: Yes. The 0230001.HXP is a parametric equivalent with identical electrical ratings (1 A, 250 V AC, 125 V DC), identical response time (Slow Blow), identical mechanical dimensions (0.177" Dia x 0.571" L), and identical regulatory certifications (CE, CSA, PSE, UL). No design modifications are required.

Q: What are the limitations of using BK/C515-1-R as a substitute?

A: The BK/C515-1-R operates under the 2AG package standard with dimensions of 0.217" Dia x 0.598" L, which differs from the original 0.177" Dia x 0.571" L specification. The part does not specify a DC voltage rating, limiting its use in DC applications. Regulatory certifications are limited to CSA and UL, excluding CE and PSE. The melting I²t value is significantly higher (14.289 versus 5.64), which may affect circuit protection response characteristics.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both 0230001.HXP and BK/C515-1-R maintain ROHS3 compliance status, consistent with the main part specification.

Q: What is the significance of the melting I²t parameter in fuse selection?

A: The melting I²t value determines the thermal energy required to melt the fuse element. The main part and 0230001.HXP both specify 5.64, ensuring identical thermal response. The BK/C515-1-R specifies 14.289, indicating a slower thermal response that may not provide equivalent circuit protection in all applications.

Q: Can BK/C515-1-R be used in applications requiring CE certification?

A: No. The BK/C515-1-R does not carry CE certification. If the application requires CE compliance, only 0230001.MXP or 0230001.HXP are suitable options.