Littelfuse 0326005.MXCCP Ceramic Fuse 5A 250VAC – Equivalent & Substitute Parts

Part Overview

The Littelfuse 0326005.MXCCP is a 5 A, 250 V AC ceramic cartridge fuse from the 326 series, designed for applications requiring slow-blow response characteristics. This fuse operates within the temperature range of -55°C to 125°C and is housed in a 3AB/3AG package format (1/4" × 1-1/4"). The part maintains active product status with full compliance to CE, CSA, PSE, and UL approval agencies. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, response time characteristics, and package compatibility.

Key Parameters

Parameter	Value
Current Rating	5 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Ceramic
Response Time	Slow Blow
Package / Case	3AB, 3AG, 1/4" × 1-1/4"
Breaking Capacity @ Rated Voltage	400 A
Melting I²t	25
Operating Temperature Range	-55°C ~ 125°C
DC Cold Resistance	0.0522 Ohms
RoHS Status	ROHS3 Compliant
Approval Agencies	CE, CSA, PSE, UL

Substitute Part Grouping Explanation

Substitution eligibility for the 0326005.MXCCP is determined by the following critical parameters:

Primary Substitution Criteria:

Current Rating: 5 A (exact match required)
Voltage Rating (AC): 250 V (exact match required)
Package / Case: 3AB, 3AG, 1/4" × 1-1/4" (exact match required)
Response Time: Slow Blow (exact match required)
Fuse Type: Cartridge, Ceramic (exact match required)

Secondary Compatibility Factors:

Operating Temperature Range: -55°C ~ 125°C (minimum acceptable)
Approval Agencies: CE, CSA, PSE, UL (regulatory alignment)
RoHS Status: ROHS3 Compliant (environmental compliance)

Substitute parts are grouped into two categories:

Category 1: Parametric Equivalents (Littelfuse 326 Series) Parts 0326005.HXP, 0326005.MXP, and 0326005.VXP are direct parametric equivalents manufactured by Littelfuse. All parameters match the main part exactly, including current rating, voltage, package dimensions, response time, and thermal operating range. These parts differ only in internal construction or material composition while maintaining identical electrical and mechanical specifications.

Category 2: Cross-Manufacturer Substitutes Part BK/MDA-5-R (Eaton Electronics Division) meets all primary substitution criteria with identical current, voltage, package, and response time ratings. Part 0001.2531 (SCHURTER Inc.) is a glass cartridge fuse alternative that matches current, voltage, and package specifications but differs in fuse type and melting I²t characteristics.

Parameter Comparison

Parameter	0326005.MXCCP (Main)	0326005.HXP	0326005.MXP	0326005.VXP	BK/MDA-5-R	0001.2531
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	Eaton Electronics	SCHURTER Inc.
Current Rating (Amps)	5 A	5 A	5 A	5 A	5 A	5 A
Voltage Rating - AC	250 V	250 V	250 V	250 V	250 V	250 V
Fuse Type	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Glass
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow
Package / Case	3AB, 3AG, 1/4" × 1-1/4"	3AB, 3AG, 1/4" × 1-1/4"	3AB, 3AG, 1/4" × 1-1/4"	3AB, 3AG, 1/4" × 1-1/4"	3AB, 3AG, 1/4" × 1-1/4"	3AB, 3AG, 1/4" × 1-1/4"
Breaking Capacity @ Rated Voltage	400 A	400 A	400 A	400 A	200 A	1.5 kA AC, 20 kA DC
Melting I²t	25	25	25	25	65	127
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-	-40°C ~ 85°C
DC Cold Resistance (Ohms)	0.0522	0.0522	0.0522	0.0522	0.023	Not Specified
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agencies	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, UL	cURus
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Littelfuse 326 Series Equivalents (0326005.HXP, 0326005.MXP, 0326005.VXP)

These three parts are direct parametric equivalents to the 0326005.MXCCP. All electrical and mechanical specifications are identical, including current rating, voltage rating, package dimensions, response time, melting I²t, and operating temperature range. All three maintain active product status with identical regulatory approvals (CE, CSA, PSE, UL) and ROHS3 compliance. Selection among these three parts may be based on inventory availability or internal design documentation requirements.

Eaton BK/MDA-5-R (MDA Series)

The BK/MDA-5-R is a ceramic cartridge fuse from Eaton's MDA series that matches the primary electrical and mechanical specifications: 5 A current rating, 250 V AC voltage rating, slow-blow response, and 3AB/3AG package format. This part maintains active product status with CE, CSA, and UL approvals. The breaking capacity is rated at 200 A (compared to 400 A for the Littelfuse part), and the melting I²t is 65 (compared to 25 for the main part). Operating temperature range is not specified for this part. This substitute is suitable for applications where the lower breaking capacity and higher melting I²t do not present a constraint.

SCHURTER 0001.2531 (SPT 6.3x32 Series)

The 0001.2531 is a glass cartridge fuse from SCHURTER's SPT series that matches the current rating (5 A), AC voltage rating (250 V), package dimensions (3AB/3AG, 1/4" × 1-1/4"), and slow-blow response time. This part differs in fuse type (glass instead of ceramic) and includes a DC voltage rating of 63 V. The melting I²t is 65 (compared to 25 for the main part), and the operating temperature range is -40°C to 85°C (narrower than the main part's -55°C to 125°C). This part maintains active product status with cURus approval. Selection of this substitute should account for the different fuse material and thermal operating range.

Frequently Asked Questions (FAQ)

Q: Can I use 0326005.HXP, 0326005.MXP, or 0326005.VXP interchangeably with 0326005.MXCCP?

A: Yes. These three Littelfuse 326 series parts are parametric equivalents with identical electrical ratings (5 A, 250 V AC), response time (slow blow), package format (3AB/3AG, 1/4" × 1-1/4"), and operating temperature range (-55°C to 125°C). All three maintain the same regulatory approvals and ROHS3 compliance as the main part.

Q: What is the difference between the ceramic fuses (Littelfuse and Eaton) and the glass fuse (SCHURTER)?

A: The primary difference is the fuse element material. Ceramic fuses (0326005.MXCCP, 0326005.HXP, 0326005.MXP, 0326005.VXP, and BK/MDA-5-R) use ceramic construction, while the SCHURTER 0001.2531 uses glass construction. This affects the melting I²t value and thermal characteristics. The SCHURTER part also includes a DC voltage rating (63 V) not present in the ceramic alternatives.

Q: Can I substitute the Eaton BK/MDA-5-R for the Littelfuse 0326005.MXCCP?

A: The BK/MDA-5-R matches the critical electrical and mechanical parameters: 5 A current, 250 V AC voltage, slow-blow response, and 3AB/3AG package. However, the breaking capacity is lower (200 A vs. 400 A), and the melting I²t is higher (65 vs. 25). Operating temperature range is not specified for the Eaton part. Substitution is permissible if the application does not require the higher breaking capacity or lower melting I²t of the original part.

Q: Is the SCHURTER 0001.2531 a suitable substitute?

A: The SCHURTER 0001.2531 matches the current rating (5 A), AC voltage (250 V), package dimensions (3AB/3AG), and response time (slow blow). However, it differs in fuse type (glass vs. ceramic), has a higher melting I²t (127 vs. 25), includes a DC voltage rating (63 V), and operates within a narrower temperature range (-40°C to 85°C vs. -55°C to 125°C). Substitution is appropriate only if these differences do not conflict with application requirements.

Q: Do all substitute parts have the same regulatory approvals?

A: No. The Littelfuse 326 series equivalents (0326005.HXP, 0326005.MXP, 0326005.VXP) and the main part share identical approvals: CE, CSA, PSE, and UL. The Eaton BK/MDA-5-R has CE, CSA, and UL approvals (no PSE). The SCHURTER 0001.2531 has cURus approval. Verify that the substitute part's regulatory approvals align with your application's compliance requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (0326005.HXP, 0326005.MXP, 0326005.VXP, BK/MDA-5-R, and 0001.2531) are ROHS3 compliant, matching the environmental compliance status of the main part 0326005.MXCCP.

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