Murata Power Solutions 78615/8MC Pulse Transformer - Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 78615/8MC is a 1mH general purpose pulse transformer with 1CT:1CT turns ratio configuration, designed for surface mount applications. This component features a compact footprint of 0.375" L x 0.354" W (9.52mm x 9.00mm) with a maximum seated height of 0.250" (6.35mm). The part is classified as "Not For New Designs," indicating its legacy status within the product portfolio. For new design implementations or when 78615/8MC inventory becomes unavailable, direct substitution with active product variants is necessary to maintain design continuity and ensure long-term supply chain reliability.

Substiute Parts

78615/8MC

Murata Power Solutions Inc.In Stock: 237578615/8MC Datasheet

Current PartRFQ

78615/8JC

Murata Power Solutions Inc.In Stock: 110878615/8JC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 78615/8MC is determined by strict equivalence across the following critical parameters:

• Inductance Value: 1mH (exact match required)
• Turns Ratio Configuration: 1CT:1CT (exact match required)
• ET (Volt-Time) Rating: 15VµS (exact match required)
• Mounting Technology: Surface Mount (exact match required)
• Physical Dimensions: 0.375" L x 0.354" W x 0.250" H maximum (exact match required)
• Operating Temperature Range: 0°C ~ 70°C (exact match required)
• Packaging Format: Tube (exact match required)

The 78615/8JC qualifies as a direct substitute because it maintains identical electrical specifications, mechanical dimensions, and environmental operating parameters. The primary distinction is product status: 78615/8JC is classified as "Active," ensuring continued availability and support for new and ongoing designs.

Parameter Comparison

Engineering Selection Recommendations

The 78615/8JC is the appropriate selection for both new designs and replacement applications. This part maintains full electrical and mechanical compatibility with the 78615/8MC while offering the advantage of active product status, ensuring continued manufacturer support, availability, and compliance with current regulatory requirements. Both parts satisfy ROHS3 compliance and carry identical environmental certifications. The transition from 78615/8MC to 78615/8JC requires no circuit modifications, PCB layout adjustments, or thermal management changes, as all critical parameters remain constant.

Frequently Asked Questions (FAQ)

Q: Can 78615/8JC be used as a direct replacement for 78615/8MC in existing designs?

A: Yes. The 78615/8JC is electrically and mechanically identical to the 78615/8MC. All electrical parameters (inductance, turns ratio, ET rating), physical dimensions, mounting characteristics, and environmental specifications are equivalent. No design modifications are required.

Q: Why is 78615/8MC marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status within Murata's product portfolio. The 78615/8JC represents the active equivalent and should be used for all new design implementations.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant with MSL rating of 1 (Unlimited). Both carry identical ECCN (EAR99) and HTSUS (8504.31.2000) classifications. The primary difference is REACH status: 78615/8MC is REACH Affected, while 78615/8JC is REACH Unaffected.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution requires exact equivalence in inductance (1mH), turns ratio (1CT:1CT), ET rating (15VµS), mounting type (Surface Mount), physical dimensions (0.375" L x 0.354" W x 0.250" H), operating temperature range (0°C ~ 70°C), and packaging format (Tube).

Q: Is PCB layout modification necessary when switching from 78615/8MC to 78615/8JC?

A: No. Both parts share identical footprints and mounting characteristics. Existing PCB designs require no modification.