Murata Power Solutions 78602/3MC Pulse Transformer - Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 78602/3MC is a 200µH general purpose pulse transformer with 1:1:1 turns ratio configuration, designed for surface mount applications. This component features a compact footprint of 9.52mm × 9.00mm with a maximum seated height of 6.35mm, operating across the 0°C to 70°C temperature range.

The 78602/3MC carries a "Not For New Designs" product status, indicating that Murata has transitioned this model out of active production. Organizations requiring this transformer for new applications or seeking to maintain supply chain continuity should evaluate qualified substitute components that maintain electrical and mechanical compatibility.

Substiute Parts

78602/3MC

Murata Power Solutions Inc.In Stock: 162378602/3MC Datasheet

Current PartRFQ

78602/3JC

Murata Power Solutions Inc.In Stock: 81178602/3JC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 78602/3MC is determined by the following critical parameters:

• Inductance Value: The primary electrical specification. Substitute parts must maintain inductance within acceptable operating tolerances for the application circuit.
• ET (Volt-Time Product): Defines the core saturation characteristics and energy handling capability. This parameter must remain consistent.
• Turns Ratio Configuration: The 1:1:1 configuration is application-specific and cannot be altered in substitutes.
• Mounting Type: Surface mount compatibility is required for PCB integration.
• Physical Footprint and Height: The 9.52mm × 9.00mm footprint and 6.35mm maximum height must be maintained for mechanical fit within the assembly.
• Operating Temperature Range: The 0°C to 70°C specification must be supported.
• Compliance Standards: RoHS3 compliance and MSL 1 rating must be preserved.

The 78602/3JC qualifies as a manufacturer-recommended substitute based on these criteria, with the exception of inductance value (180µH versus 200µH), which represents a 10% reduction. This variance must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The 78602/3JC is the manufacturer-recommended substitute for the 78602/3MC. Key selection factors include:

Product Status: The 78602/3MC is designated "Not For New Designs," while the 78602/3JC maintains "Active" status. For new product development, the 78602/3JC is the appropriate selection.

Compliance and Certifications: Both components maintain ROHS3 compliance, MSL 1 rating, and identical regulatory classifications (ECCN: EAR99; HTSUS: 8504.31.2000). No compliance barriers exist for substitution.

Electrical Compatibility: The inductance difference (200µH to 180µH) represents a 10% reduction. Circuit-level analysis is required to determine whether this variance falls within acceptable operating parameters for the specific application. The matching ET value (6VµS) and identical turns ratio (1:1:1) support functional equivalence in most general-purpose pulse transformer applications.

Mechanical Compatibility: Identical physical dimensions and height specifications ensure direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 78602/3JC directly replace the 78602/3MC without circuit modifications?

A: Mechanical and compliance compatibility is confirmed. Electrical compatibility depends on circuit tolerance for the 10% inductance reduction (200µH to 180µH). Application-specific circuit analysis is required.

Q: Why does the 78602/3JC have lower inductance than the 78602/3MC?

A: The 78602/3JC belongs to the 786J series, which represents a different design generation within Murata's product line. The inductance difference reflects design optimization while maintaining the same ET value and core functionality.

Q: Are there any supply chain advantages to using the 78602/3JC?

A: The 78602/3JC maintains "Active" product status with current manufacturing support, whereas the 78602/3MC is "Not For New Designs." The 78602/3JC provides improved long-term availability and supply continuity.

Q: Do both parts have identical moisture sensitivity requirements?

A: Yes. Both components carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity constraints during storage or handling.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both components share identical footprint dimensions (9.52mm × 9.00mm) and maximum seated height (6.35mm), enabling direct mechanical substitution on existing PCB layouts.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8504.31.2000.