DA103MC Equivalent & Substitute Parts

Part Overview

The DA103MC is a 7.75mH pulse transformer with 1:1 turns ratio manufactured by Murata Power Solutions Inc. in the DA100 series. This component is classified as not for new designs, indicating it has been superseded in the manufacturer's product line. The part is surface mount packaged and designed for digital audio transmission applications. Due to its discontinued status, identifying compatible substitute parts is essential for ongoing system support and component procurement.

Substiute Parts

DA103MC

Murata Power Solutions Inc.In Stock: 1263DA103MC Datasheet

Current PartRFQ

DA103JC

Murata Power Solutions Inc.In Stock: 996DA103JC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DA103MC is determined by the following critical parameters:

• Inductance value of 7.75mH
• Turns ratio of 1:1
• ET (Volt-Time) product of 28VµS
• Surface mount mounting type
• Physical dimensions: 0.354" L x 0.375" W (9.00mm x 9.52mm)
• Height seated maximum of 0.250" (6.35mm)
• RoHS3 compliance

The DA103JC qualifies as a direct substitute based on matching all core electrical and mechanical parameters. Both parts share identical inductance, turns ratio, ET product, mounting type, and physical dimensions. The primary distinction lies in product status and operating temperature range, with the DA103JC representing the active product line continuation.

Parameter Comparison

Engineering Selection Recommendations

The DA103JC is the direct equivalent for the DA103MC. Both components meet ROHS3 compliance requirements and share identical electrical specifications and physical dimensions. The DA103JC carries active product status, making it the appropriate selection for new procurement and ongoing system support.

The operating temperature range differs between the two parts. The DA103MC operates from 0°C to 70°C, while the DA103JC operates from -40°C to 85°C. Component selection should account for the thermal requirements of the target application. The DA103JC's extended temperature range provides greater operational flexibility for applications requiring wider environmental tolerance.

Frequently Asked Questions (FAQ)

Q: Can the DA103JC directly replace the DA103MC in existing designs?

A: Yes. Both parts share identical inductance (7.75mH), turns ratio (1:1), ET product (28VµS), mounting type (surface mount), and physical dimensions (0.354" L x 0.375" W, 9.00mm x 9.52mm). Electrical and mechanical compatibility is confirmed. Operating temperature range differences should be evaluated for the specific application environment.

Q: What is the significance of the "Not For New Designs" status on the DA103MC?

A: This designation indicates the DA103MC has been superseded by newer products in the manufacturer's portfolio. The DA103JC represents the active continuation of this product line. New designs should incorporate the DA103JC to ensure long-term component availability and manufacturer support.

Q: Are there packaging differences between DA103MC and DA103JC?

A: Both parts are surface mount packaged with identical physical dimensions and height specifications. No packaging compatibility issues exist for PCB layout or assembly processes.

Q: How do the operating temperature ranges affect substitution?

A: The DA103MC operates from 0°C to 70°C, while the DA103JC operates from -40°C to 85°C. If the application operates within the DA103MC's temperature range, both parts are functionally equivalent. Applications requiring extended temperature operation should specify the DA103JC.

Q: Are both parts RoHS compliant?

A: Yes. Both the DA103MC and DA103JC are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.