Molex 0039000156 Socket Contact Equivalent & Substitute Parts

Part Overview

The Molex 0039000156 is a socket contact for rectangular connectors in the Mini-Fit Jr 5556 series, designed for power applications with 22-28 AWG wire gauge capacity. This component features gold plating and crimp termination for reliable electrical connections. The part is currently obsolete, making identification of suitable alternatives essential for ongoing system maintenance and new designs requiring compatible socket contacts.

Substiute Parts

0039000156

MolexIn Stock: 9890039000156 Datasheet

Current PartRFQ

0039000184

MolexIn Stock: 192310039000184 Datasheet

DirectRFQ

794142-3

TE Connectivity AMP ConnectorsIn Stock: 1153794142-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0039000156 is determined by the following critical parameters:

• Contact Type & Function: Socket contact for power applications
• Termination Method: Crimp termination
• Contact Finish: Gold plating at 30.0µin (0.76µm) thickness
• Wire Gauge Compatibility: 22-28 AWG (or compatible subset)
• Connector Series: Mini-Fit Jr 5556 or equivalent rectangular connector series
• Moisture Sensitivity: MSL 1 (Unlimited)

Substitute parts must maintain compatibility across these parameters to ensure proper mechanical fit, electrical performance, and reliability in the intended application.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Molex 0039000184

The Molex 0039000184 is the direct equivalent for the obsolete 0039000156. Both parts share identical specifications across all critical parameters: Mini-Fit Jr 5556 series, 22-28 AWG wire gauge, gold contact finish at 30.0µin thickness, and ROHS3 compliance. The 0039000184 is currently in active production with substantial inventory availability, making it the preferred choice for replacement applications.

Alternative Substitute: TE Connectivity 794142-3

The TE Connectivity AMP-DUAC 794142-3 provides cross-manufacturer compatibility for applications where Molex parts are unavailable. This part maintains socket contact configuration, crimp termination, gold finish, and MSL 1 rating. The wire gauge specification is 22-26 AWG, which represents a subset of the original 22-28 AWG range. The 794142-3 is RoHS non-compliant, which may restrict use in regulated applications requiring ROHS3 certification.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0039000184 be used as a direct replacement for the 0039000156?

A: Yes. Both parts are identical in specification and belong to the same Mini-Fit Jr 5556 series. The 0039000184 is the active production equivalent of the obsolete 0039000156.

Q: What is the wire gauge difference between the main part and the TE Connectivity alternative?

A: The original Molex 0039000156 accommodates 22-28 AWG wire. The TE Connectivity 794142-3 accommodates 22-26 AWG wire. Applications using 27-28 AWG wire require the Molex alternative to maintain proper crimp contact.

Q: Does the TE Connectivity 794142-3 meet RoHS requirements?

A: No. The 794142-3 is RoHS non-compliant. Applications subject to RoHS3 regulations must use the Molex 0039000184 or 0039000156.

Q: Are there packaging differences between the substitute parts?

A: The Molex 0039000156 packaging is not specified. The Molex 0039000184 is supplied in bulk packaging. The TE Connectivity 794142-3 packaging is not specified. Verify packaging requirements with your procurement department.

Q: What contact finish thickness is maintained across all substitute options?

A: All three parts maintain 30.0µin (0.76µm) gold contact finish thickness, ensuring consistent electrical performance and corrosion resistance.