Molex 0026503152 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0026503152 is an active-status vertical header connector designed for through-hole mounting applications. This 15-position connector operates at 0.156" (3.96mm) pitch and features shrouded single-wall construction with friction lock fastening. The connector accommodates board-to-board or cable interconnections across automotive, industrial, medical, and telecommunications applications. Substitute parts are identified to address inventory availability, lead time requirements, or specific application constraints while maintaining electrical and mechanical compatibility.

Substiute Parts

0026503152

MolexIn Stock: 10520026503152 Datasheet

Current PartRFQ

4-644759-5

TE Connectivity AMP ConnectorsIn Stock: 11264-644759-5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0026503152 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Pitch - Mating: 0.156" (3.96mm) — exact match required
• Number of Positions: 15 — exact match required
• Number of Rows: 1 — exact match required
• Contact Type: Male Pin — exact match required
• Mounting Type: Through Hole — exact match required
• Termination: Solder — exact match required
• Fastening Type: Friction Lock — exact match required
• Shrouding: Shrouded - 1 Wall — exact match required

Secondary Compatibility Parameters:

• Connector Type: Header (primary part specifies Header, Breakaway; substitute specifies Header only)
• Style: Board to Board or Cable (primary) vs. Board to Cable/Wire (substitute) — functionally compatible
• Contact Finish - Mating: Tin (primary) vs. Gold (substitute) — both acceptable for electrical continuity
• Contact Material: Brass (primary) vs. Copper Alloy (substitute) — both acceptable for conductivity
• Insulation Material: Polyester (primary) vs. Thermoplastic, Glass Filled (substitute) — both meet UL94 V-0
• Operating Temperature: Not specified (primary) vs. -55°C ~ 105°C (substitute) — substitute provides defined range
• Voltage Rating: Not specified (primary) vs. 600VAC (substitute) — substitute provides defined rating

The TE Connectivity AMP Connectors part 4-644759-5 qualifies as a substitute based on matching all primary criteria and providing equivalent or superior performance in secondary parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0026503152 and TE Connectivity 4-644759-5 maintain active product status and comply with applicable regulatory requirements (RoHS, REACH, UL94 V-0). Selection between these parts should be based on:

Molex 0026503152 — Primary selection when:

• Breakaway header functionality is required
• Polyester insulation material is specified
• Tin contact finish is preferred
• Brass contact material is required

TE Connectivity 4-644759-5 — Substitute selection when:

• Defined operating temperature range (-55°C ~ 105°C) is required
• Defined voltage rating (600VAC) is required
• Gold contact finish provides enhanced corrosion resistance
• Thermoplastic glass-filled insulation is acceptable
• All 15 positions are loaded (vs. 9 positions loaded in primary part)

Both connectors are suitable for automotive, industrial, medical, and telecommunications applications where 0.156" pitch 15-position through-hole solder-terminated headers are specified.

Frequently Asked Questions (FAQ)

Q: Can TE Connectivity 4-644759-5 be used as a direct replacement for Molex 0026503152?

A: Yes, within the constraints of the application. Both connectors share identical pitch (0.156"), position count (15), row configuration (1), contact type (male pin), mounting method (through hole), termination (solder), fastening (friction lock), and shrouding (1 wall). Differences in contact finish, insulation material, and contact material do not prevent functional substitution in standard applications.

Q: What is the difference between "Board to Board or Cable" and "Board to Cable/Wire" style designations?

A: The Molex part supports both board-to-board and board-to-cable configurations. The TE Connectivity part is designated for board-to-cable/wire connections. Both are compatible with solder termination and friction lock fastening; application requirements determine which style is appropriate.

Q: Does the gold contact finish on the TE Connectivity part affect compatibility?

A: No. Gold plating (30.0µin thickness) on the TE Connectivity part provides equivalent electrical conductivity and enhanced corrosion resistance compared to tin plating (60.0µin thickness) on the Molex part. Both finishes are acceptable for standard connector applications.

Q: Why does the TE Connectivity part show "All" positions loaded while the Molex part shows "9" positions loaded?

A: Position loading refers to the number of contact cavities populated in the connector housing. The TE Connectivity part is supplied with all 15 positions loaded; the Molex part is supplied with 9 positions loaded. Both connectors support 15-position capacity. Verify application requirements before substitution.

Q: Are both parts compliant with automotive and medical standards?

A: Both parts list automotive, industrial, medical, and telecommunications applications. Both achieve UL94 V-0 flammability rating, RoHS compliance, and REACH unaffected status. Specific automotive or medical standard compliance (such as AEC-Q200 or ISO 13485) is not provided in the technical data and must be verified against application requirements.

Q: What is the significance of the MSL (Moisture Sensitivity Level) rating of 1?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. Both connectors can be stored and handled under standard conditions without special moisture control measures or baking requirements prior to soldering.