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Equivalent & Substitute Parts for Murata 78601/9MC
Part Overview
The Murata 78601/9MC is a 10mH general purpose pulse transformer with a 1:1 turns ratio, designed for surface mount applications. This component features a compact 9.00mm × 9.52mm footprint and operates across the 0°C to 70°C temperature range. The part is classified as "Not For New Designs," indicating it has been superseded in Murata's product portfolio. Organizations requiring this transformer specification must identify compatible alternatives that maintain electrical and mechanical equivalence while preferring active product status where feasible.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Inductance | 10mH |
| Turns Ratio (Primary:Secondary) | 1:1 |
| ET (Volt-Time Product) | 56VµS |
| Transformer Type | General Purpose |
| Mounting Type | Surface Mount |
| Operating Temperature Range | 0°C ~ 70°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 78601/9MC is determined by strict equivalence across the following electrical and mechanical parameters:
- Inductance: Must equal 10mH
- Turns Ratio: Must equal 1:1
- ET (Volt-Time Product): Must equal 56VµS
- Transformer Type: Must be General Purpose
- Mounting Type: Must be Surface Mount
- Operating Temperature Range: Must support 0°C ~ 70°C minimum
- RoHS Compliance: Must maintain ROHS3 Compliant status
- Moisture Sensitivity Level: Must be MSL 1 or better
The 78601/9JC meets all substitution criteria, providing direct electrical and mechanical compatibility while offering the advantage of active product status.
Parameter Comparison
| Parameter | 78601/9MC (Main Part) | 78601/9JC (Substitute) | Compatibility |
|---|---|---|---|
| Inductance | 10mH | 10mH | Equivalent |
| Turns Ratio | 1:1 | 1:1 | Equivalent |
| ET (Volt-Time) | 56VµS | 56VµS | Equivalent |
| Transformer Type | General Purpose | General Purpose | Equivalent |
| Mounting Type | Surface Mount | Surface Mount | Equivalent |
| Size / Dimension | 9.00mm L × 9.52mm W | 9.52mm L × 9.00mm W | Equivalent (rotated orientation) |
| Height - Seated (Max) | 6.35mm | 6.35mm | Equivalent |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | Equivalent |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Equivalent |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Equivalent |
| Product Status | Not For New Designs | Active | Substitute offers active status |
| ECCN | EAR99 | EAR99 | Equivalent |
| HTSUS Code | 8504.31.2000 | 8504.31.2000 | Equivalent |
Engineering Selection Recommendations
The 78601/9JC is the direct substitute for the 78601/9MC. Both components are manufactured by Murata Power Solutions Inc. and share identical electrical specifications: 10mH inductance, 1:1 turns ratio, and 56VµS ET product. Physical dimensions are equivalent with a rotated footprint orientation (9.52mm × 9.00mm versus 9.00mm × 9.52mm), and both maintain identical height and operating temperature specifications.
The primary distinction is product lifecycle status: the 78601/9MC is designated "Not For New Designs," while the 78601/9JC carries "Active" status. Both parts maintain ROHS3 compliance and identical regulatory classifications (EAR99, HTSUS 8504.31.2000). For new designs or long-term supply chain planning, the 78601/9JC is the appropriate selection. For existing applications currently using the 78601/9MC, the 78601/9JC provides direct substitution without circuit redesign or performance modification.
Frequently Asked Questions (FAQ)
Q: Can the 78601/9JC replace the 78601/9MC in existing designs?
A: Yes. The 78601/9JC is electrically and mechanically equivalent. Both components feature 10mH inductance, 1:1 turns ratio, 56VµS ET product, and identical operating temperature ranges. The footprint dimensions are rotated (9.52mm × 9.00mm versus 9.00mm × 9.52mm), but both fit the same PCB land pattern with standard surface mount placement.
Q: What is the significance of the "Not For New Designs" status on the 78601/9MC?
A: This designation indicates the part has been superseded in Murata's active product line. The 78601/9JC represents the current equivalent offering. For new product development, the 78601/9JC should be specified to ensure long-term availability and manufacturing support.
Q: Are there any compliance or regulatory differences between these parts?
A: No. Both the 78601/9MC and 78601/9JC maintain identical compliance certifications: ROHS3 Compliant, EAR99 export classification, and HTSUS code 8504.31.2000. Moisture sensitivity level is MSL 1 for both parts.
Q: Does the rotated footprint dimension affect PCB layout?
A: The dimensional rotation (9.52mm × 9.00mm versus 9.00mm × 9.52mm) does not affect electrical performance or standard surface mount assembly. PCB land patterns accommodate both orientations. Verify footprint orientation during component placement to ensure correct assembly.
Q: What inventory considerations apply to these parts?
A: The 78601/9MC has 32,544 pieces in stock (legacy inventory). The 78601/9JC has 4,772 pieces in stock and carries active product status, ensuring continued manufacturing availability. For production planning, the 78601/9
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