Molex 0701070073 Rectangular Connector Plug Housing - Equivalent & Substitute Parts

Part Overview

The Molex 0701070073 is a 4-position rectangular connector plug housing with 0.100" (2.54mm) pitch, designed for free-hanging in-line applications with crimp contact termination. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The housing accommodates male pin contacts and features a latch holder fastening mechanism with black polyester construction.

Substiute Parts

0701070073

MolexIn Stock: 8550701070073 Datasheet

Current PartRFQ

103653-3

TE Connectivity AMP ConnectorsIn Stock: 2365103653-3 Datasheet

MFR RecommendedRFQ

0701070003

MolexIn Stock: 10080701070003 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Molex 0701070073 is determined by strict equivalence across the following parameters: connector type (plug), contact type (male pin), number of positions (4), pitch (0.100"/2.54mm), number of rows (1), mounting type (free hanging in-line), contact termination (crimp), fastening type (latch holder), and color (black). Parts meeting all these criteria are classified as direct substitutes.

Two substitute parts are identified:

Molex 0701070003 - Parametric equivalent within the same SL 70107 series, maintaining identical mechanical and electrical specifications with active product status.

TE Connectivity AMP Connectors 103653-3 - Manufacturer-recommended substitute from the AMPMODU MTE series, providing functional equivalence with active availability and broader temperature operating range.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the obsolete Molex 0701070073, the Molex 0701070003 is the primary substitute. Both parts share identical mechanical specifications, series designation (SL 70107), and compliance certifications (ROHS3, REACH Unaffected). The 0701070003 maintains active product status and equivalent insulation material composition, ensuring direct functional replacement with no design modifications required.

The TE Connectivity 103653-3 serves as an alternative cross-manufacturer substitute when Molex supply is unavailable. This part maintains all critical mechanical and electrical parameters while offering an extended lower operating temperature limit (-65°C versus -40°C). The TE Connectivity part uses PBT insulation material instead of glass-filled polyester, which may be relevant for specific environmental or chemical resistance requirements. Both substitute parts carry appropriate RoHS compliance and unlimited moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0701070003 directly replace the obsolete 0701070073 without design changes?

A: Yes. Both parts are identical in connector type, position count, pitch, mounting configuration, and fastening mechanism. No PCB layout or assembly modifications are required.

Q: What is the primary difference between the Molex 0701070003 and TE Connectivity 103653-3?

A: The primary differences are manufacturer origin and insulation material. The Molex part uses glass-filled polyester insulation, while the TE Connectivity part uses PBT. The TE Connectivity part also specifies a lower minimum operating temperature (-65°C versus -40°C).

Q: Are all three parts compatible with the same contact pins?

A: Compatibility is determined by the crimp contact specifications. All three housings accept 0.100" (2.54mm) pitch crimp contacts designed for this connector family. Contact part numbers must be verified separately to ensure mechanical and electrical compatibility.

Q: Which substitute should be selected for new designs?

A: For new designs, either the Molex 0701070003 or TE Connectivity 103653-3 are acceptable. Selection depends on supply chain preference, insulation material requirements, and operating temperature specifications. Both parts carry active product status and appropriate compliance certifications.

Q: Does packaging type affect substitution eligibility?

A: Packaging (bulk versus other formats) does not affect electrical or mechanical compatibility. Packaging selection is determined by procurement and inventory management requirements, not functional substitution criteria.