Equivalent & Substitute Parts for C308F125MA-TR

Part Overview

The C308F125MA-TR is a ceramic cartridge fuse manufactured by Eaton - Electronics Division, rated at 125mA with 250 VAC/VDC voltage capability. This surface mount fuse is designed for fast-blow response in hazardous location applications and features intrinsic safety certification. The part is currently active in production with 1397 units in stock. Substitute parts are identified when identical electrical and mechanical parameters are maintained across the same product series, ensuring direct functional equivalence without design modification.

Substiute Parts

C308F125MA-TR

Eaton - Electronics DivisionIn Stock: 1479C308F125MA-TR Datasheet

Current PartRFQ

C308F125MA-TR1

Eaton - Electronics DivisionIn Stock: 1146C308F125MA-TR1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the C308F125MA-TR is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part C308F125MA-TR1 qualifies as a direct equivalent based on the following criteria:

Electrical Parameters (Must Match Exactly):

• Current Rating: 125mA
• Voltage Rating - AC: 250 VAC
• Voltage Rating - DC: 250 VDC
• Response Time: Fast Blow
• Breaking Capacity @ Rated Voltage: 4kA
• DC Cold Resistance: 2.2 Ohms
• Melting I²t: 0.00134

Mechanical Parameters (Must Match Exactly):

• Fuse Type: Cartridge, Ceramic
• Mounting Type: Surface Mount
• Size / Dimension: 0.120" Dia x 0.343" L (3.05mm x 8.70mm)
• Package / Case: Cartridge, Non-Standard

Compliance & Certification (Must Match Exactly):

• Approval Agency: cURus
• RoHS Status: ROHS3 Compliant
• Operating Temperature Range: -55°C ~ 125°C
• Series: C308F

Both parts belong to the C308F series and maintain identical specifications across all provided parameters, confirming direct substitutability.

Parameter Comparison

Engineering Selection Recommendations

Both C308F125MA-TR and C308F125MA-TR1 are active production parts from Eaton - Electronics Division with identical electrical, mechanical, and compliance specifications. Selection between these parts may be based on inventory availability and lead time considerations. The C308F125MA-TR currently maintains 1397 units in stock, while C308F125MA-TR1 maintains 1097 units in stock. Both parts carry cURus approval certification and ROHS3 compliance status, confirming suitability for hazardous location applications requiring intrinsic safety features. No design modifications are required when substituting between these parts, as all critical parameters remain constant.

Frequently Asked Questions (FAQ)

Q: Can C308F125MA-TR1 be used as a direct replacement for C308F125MA-TR?

A: Yes. Both parts are manufactured by Eaton - Electronics Division and maintain identical specifications across all electrical parameters (125mA, 250 VAC/VDC, 4kA breaking capacity), mechanical dimensions (0.120" Dia x 0.343" L), response characteristics (fast blow), and compliance certifications (cURus, ROHS3). Direct substitution requires no circuit modifications.

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

A: No. Both parts are supplied in Tape & Reel (TR) packaging format, maintaining identical handling and assembly requirements.

Q: What certifications apply to both substitute parts?

A: Both parts carry cURus approval and are ROHS3 compliant. Both are rated for hazardous location applications with intrinsic safety features and operate across the temperature range of -55°C to 125°C.

Q: How do the electrical characteristics compare?

A: The electrical characteristics are identical. Both parts feature 125mA current rating, 250 VAC/250 VDC voltage rating, 4kA breaking capacity at rated voltage, 2.2 Ohms DC cold resistance, and 0.00134 melting I²t value.

Q: Which part should be selected based on availability?

A: Selection should be based on current inventory levels and procurement lead times. C308F125MA-TR has 1397 units in stock, while C308F125MA-TR1 has 1097 units in stock. Both are active production parts with equivalent technical specifications.