Murata Power Solutions 78602/8MC Pulse Transformer - Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 78602/8MC is a 1mH general purpose pulse transformer with 1:1:1 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) and operates across the 0°C to 70°C temperature range.

The 78602/8MC carries a "Not For New Designs" product status, indicating that Murata has transitioned this model out of active production. Organizations currently using this component in active designs or requiring additional inventory should evaluate qualified substitute parts to ensure long-term supply chain continuity and design flexibility.

Substiute Parts

78602/8MC

Murata Power Solutions Inc.In Stock: 85778602/8MC Datasheet

Current PartRFQ

78602/8JC

Murata Power Solutions Inc.In Stock: 112778602/8JC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 78602/8MC is determined by the following critical parameters:

• Transformer Type: Must be General Purpose pulse transformer
• Turns Ratio: Must maintain 1:1:1 configuration
• Mounting Type: Must be Surface Mount
• Physical Footprint: Must match 0.375" L x 0.354" W (9.52mm x 9.00mm) and 0.250" (6.35mm) maximum seated height
• Operating Temperature Range: Must support 0°C ~ 70°C minimum
• ET (Volt-Time) Product: Must be 15VµS
• Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The 78602/8JC qualifies as a direct substitute based on these parameters. While the inductance differs slightly (970µH versus 1mH), both components share identical electrical performance characteristics (ET product), physical dimensions, mounting configuration, and compliance certifications. The 78602/8JC additionally carries Active product status, providing improved long-term availability.

Parameter Comparison

Engineering Selection Recommendations

The 78602/8JC is the qualified substitute for the 78602/8MC based on the following engineering criteria:

Compliance & Certification Alignment: Both components maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent environmental and regulatory performance in manufacturing and field deployment.

Product Status Consideration: The 78602/8MC is designated "Not For New Designs," while the 78602/8JC carries Active status. For applications requiring long-term supply assurance and design continuity, the 78602/8JC provides superior availability and manufacturer support.

Electrical Performance Equivalence: Both transformers deliver identical ET (Volt-Time) product specifications of 15VµS, maintaining functional equivalence in pulse transformation applications despite the 30µH inductance variance (1mH versus 970µH).

Physical & Mechanical Compatibility: Identical surface mount footprint, dimensions, and maximum seated height ensure direct PCB layout compatibility without redesign requirements.

Frequently Asked Questions (FAQ)

Q: Can the 78602/8JC directly replace the 78602/8MC in existing designs?

A: Yes. The 78602/8JC maintains identical physical dimensions, mounting configuration, turns ratio, ET product, operating temperature range, and compliance certifications. Direct substitution is supported without PCB layout modifications.

Q: What is the significance of the inductance difference between 1mH and 970µH?

A: Both components share the same ET (Volt-Time) product of 15VµS, which is the primary electrical performance parameter for pulse transformer applications. The inductance variance reflects design optimization within the same functional class and does not affect substitution eligibility.

Q: Why is the 78602/8MC marked "Not For New Designs"?

A: This designation indicates that Murata has transitioned the 78602/8MC out of active production. The 78602/8JC, with Active product status, represents the current production equivalent and is recommended for new design implementations.

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

A: No. Both components are ROHS3 compliant with MSL 1 (Unlimited) ratings. Compliance profiles are identical.

Q: Will the 78602/8JC fit the same PCB footprint as the 78602/8MC?

A: Yes. Both components share identical surface mount dimensions of 0.375" L x 0.354" W (9.52mm x 9.00mm) with a maximum seated height of 0.250" (6.35mm). No PCB layout changes are required.