C308F63MA-TR Equivalent & Substitute Parts

Part Overview

The C308F63MA-TR is a 63mA ceramic cartridge fuse rated for 250 VAC/VDC operation, designed for surface mount applications in hazardous locations. This component features intrinsically safe design with fast-blow response characteristics and cURus approval certification. The part is currently active in production with 712 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when inventory requirements necessitate alternative stock sources.

Substiute Parts

C308F63MA-TR

Eaton - Electronics DivisionIn Stock: 804C308F63MA-TR Datasheet

Current PartRFQ

C308F63MA-TR1

Eaton - Electronics DivisionIn Stock: 1970C308F63MA-TR1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the C308F63MA-TR are identified based on electrical and mechanical parameter equivalence. The substitution criteria are strictly limited to the following parameters:

• Current Rating: 63mA
• Voltage Rating - AC: 250 VAC
• Voltage Rating - DC: 250 VDC
• Fuse Type: Cartridge, Ceramic
• Mounting Type: Surface Mount
• Response Time: Fast Blow
• Breaking Capacity @ Rated Voltage: 4kA
• Operating Temperature Range: -55°C ~ 125°C
• Size / Dimension: 0.120" Dia x 0.343" L (3.05mm x 8.70mm)
• DC Cold Resistance: 8.8 Ohms
• Melting I²t: 0.00012
• Approval Agency: cURus
• RoHS Status: ROHS3 Compliant

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. The C308F63MA-TR1 satisfies all specified electrical and mechanical requirements for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

Both the C308F63MA-TR and C308F63MA-TR1 are active production parts manufactured by Eaton - Electronics Division. Both parts carry identical electrical specifications, mechanical dimensions, and regulatory certifications. Selection between these parts is based on inventory availability and supply chain requirements rather than technical performance differences.

The C308F63MA-TR1 offers higher inventory availability with 1,924 units in stock compared to 712 units for the C308F63MA-TR. Both parts maintain ROHS3 compliance and cURus approval certification for hazardous location applications. The identical DC cold resistance, melting I²t characteristics, and breaking capacity ensure equivalent circuit protection performance in all specified operating conditions.

Frequently Asked Questions (FAQ)

Q: Can C308F63MA-TR1 be used as a direct replacement for C308F63MA-TR?

A: Yes. The C308F63MA-TR1 is a parametric equivalent with identical electrical ratings (63mA, 250 VAC/VDC), mechanical dimensions (0.120" Dia x 0.343" L), response characteristics (fast blow), and regulatory certifications (cURus). Both parts are surface mount ceramic cartridge fuses with matching breaking capacity and operating temperature ranges.

Q: Are there any differences in packaging between these parts?

A: Both parts are supplied in Tape & Reel (TR) packaging. No packaging differences exist between the C308F63MA-TR and C308F63MA-TR1.

Q: What are the critical parameters for substitution in this fuse category?

A: Critical substitution parameters include current rating (63mA), voltage ratings (250 VAC/250 VDC), fuse type (ceramic cartridge), mounting configuration (surface mount), response time (fast blow), physical dimensions (0.120" Dia x 0.343" L), breaking capacity (4kA), and regulatory approval (cURus). All parameters must match for direct substitution.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the C308F63MA-TR and C308F63MA-TR1 carry cURus approval certification and are ROHS3 compliant. Both parts are rated for hazardous location applications with intrinsically safe design features.

Q: What is the operating temperature range for these fuses?

A: Both parts operate across the temperature range of -55°C to 125°C, ensuring performance in demanding thermal environments.

Q: Are there inventory considerations when selecting between these parts?

A: The C308F63MA-TR1 maintains higher stock levels (1,924 units) compared to the C308F63MA-TR (712 units). Inventory availability may influence selection for high-volume requirements or extended lead time mitigation.