CCMR.500T Equivalent & Substitute Parts

Part Overview

The CCMR.500T is a 500mA cartridge fuse rated for 600 VAC and 250 VDC applications, designed for motor protection circuits. This component features slow-blow response characteristics and is classified as a CC-class fuse in the 5AG (10mm x 38mm Midget) package format. The CCMR.500T is currently listed as obsolete, making identification of active equivalent parts essential for ongoing system maintenance and new design implementations.

Substiute Parts

CCMR.500T

Littelfuse Inc.In Stock: 891CCMR.500T Datasheet

Current PartRFQ

CCMR.500TXP

Littelfuse Inc.In Stock: 878CCMR.500TXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CCMR.500T is determined by strict equivalence across the following critical parameters:

• Current Rating: 500mA (exact match required)
• Voltage Rating: 600 VAC / 250 VDC (exact match required)
• Response Time: Slow Blow (exact match required)
• Fuse Class: CC (exact match required)
• Package Format: 5AG, 10mm x 38mm Midget (exact match required)
• Physical Dimensions: 0.406" Dia x 1.500" L (exact match required)
• Breaking Capacity: 300kA AC / 20kA DC (exact match required)
• Approval Certifications: CE, CSA, UL (exact match required)

The CCMR.500TXP meets all substitution criteria as a direct equivalent. The primary distinction between these parts is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The CCMR.500TXP is the direct functional equivalent to the obsolete CCMR.500T. Both components maintain identical electrical specifications, mechanical dimensions, and regulatory certifications. The CCMR.500TXP carries active product status from Littelfuse Inc., ensuring continued availability and supply chain reliability. Both parts satisfy CE, CSA, and UL approval requirements and maintain ROHS3 compliance. Selection between these parts should be based on packaging requirements and procurement lead times, as the CCMR.500TXP is available in bulk packaging configuration.

Frequently Asked Questions (FAQ)

Q: Can the CCMR.500TXP directly replace the CCMR.500T in existing applications?

A: Yes. The CCMR.500TXP is electrically and mechanically identical to the CCMR.500T across all critical parameters including current rating, voltage ratings, response time, fuse class, physical dimensions, breaking capacity, and regulatory certifications.

Q: What is the difference between the CCMR.500T and CCMR.500TXP?

A: The primary differences are product status and packaging. The CCMR.500T is obsolete, while the CCMR.500TXP is active. The CCMR.500TXP is supplied in bulk packaging, whereas the CCMR.500T uses standard packaging.

Q: Are both parts rated for the same voltage and current specifications?

A: Yes. Both the CCMR.500T and CCMR.500TXP are rated for 500mA at 600 VAC and 250 VDC with identical breaking capacity of 300kA AC and 20kA DC.

Q: Do both parts fit the same holder and mounting configuration?

A: Yes. Both parts use the 5AG package format (10mm x 38mm Midget) with identical physical dimensions of 0.406" Dia x 1.500" L, requiring the same cartridge fuse holder.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical CE, CSA, and UL approvals and maintain ROHS3 compliance status.