Molex 0015444528 Equivalent & Substitute Parts

Part Overview

The Molex 0015444528 is a 56-position receptacle connector with 0.100" (2.54mm) pitch, designed for board-to-board or cable applications. This connector features gold-plated mating contacts, through-hole solder termination, and push-pull fastening. The product is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system support and component procurement.

Substiute Parts

0015444528

MolexIn Stock: 10900015444528 Datasheet

Current PartRFQ

ESD-128-G-23

Samtec Inc.In Stock: 1142ESD-128-G-23 Datasheet

MFR RecommendedRFQ

ESD-128-T-23

Samtec Inc.In Stock: 1125ESD-128-T-23 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0015444528 are qualified based on the following critical parameters:

• Position Count: 56 positions (exact match required)
• Pitch - Mating: 0.100" (2.54mm) (exact match required)
• Number of Rows: 2 rows (exact match required)
• Row Spacing - Mating: 0.100" (2.54mm) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Termination: Solder (exact match required)
• Fastening Type: Push-Pull (exact match required)
• Contact Finish - Mating: Gold (exact match required)
• Material Flammability Rating: UL94 V-0 (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

The identified substitute parts meet all critical mechanical and electrical parameters. Variations in connector style (elevated socket vs. standard receptacle), insulation material, contact material, and contact finish on the post are permissible within the scope of functional equivalence for this application category.

Parameter Comparison

Engineering Selection Recommendations

Both Samtec ESD-128-G-23 and ESD-128-T-23 connectors are qualified substitutes for the obsolete Molex 0015444528. Selection between these alternatives should be based on the following factors:

Samtec ESD-128-G-23: This variant features gold plating on both mating and post contacts. It is suitable for applications requiring enhanced corrosion resistance and contact reliability across extended environmental conditions.

Samtec ESD-128-T-23: This variant features gold plating on mating contacts with tin plating on post contacts. It provides a cost-effective alternative while maintaining compliance with all critical electrical and mechanical specifications.

Both substitute parts are active products with ROHS3 compliance and UL94 V-0 flammability ratings. The Samtec connectors offer an extended operating temperature range (-55°C ~ 125°C) compared to the original Molex part (-40°C ~ 105°C), providing additional thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the Samtec ESD-128-G-23 or ESD-128-T-23 directly replace the Molex 0015444528 in existing designs?

A: Yes. Both Samtec parts meet all critical mechanical and electrical parameters: 56 positions, 0.100" pitch, 2-row configuration, through-hole solder termination, push-pull fastening, and gold mating contacts. The connectors are functionally equivalent for board-to-board applications.

Q: What are the differences between the Samtec ESD-128-G-23 and ESD-128-T-23?

A: The primary difference is contact finish on the post: ESD-128-G-23 uses gold plating, while ESD-128-T-23 uses tin plating. Both maintain gold plating on mating contacts. The choice depends on application requirements for post-contact corrosion resistance and cost considerations.

Q: Are there dimensional differences between the original Molex part and the Samtec substitutes?

A: Yes. The Samtec connectors have a slightly reduced insulation height (0.300" vs. 0.340") and contact post length (0.115" vs. 0.120"). These differences are within acceptable tolerances for standard board-to-board interconnect applications but should be verified against specific PCB layout and mating connector specifications.

Q: Do the substitute parts maintain the same electrical ratings?

A: The Samtec substitutes do not specify current or voltage ratings in the provided data. The original Molex part is rated for 2.5A at 250V. Verification of electrical performance should be conducted against application requirements and Samtec technical documentation.

Q: Are both Samtec parts in active production?

A: Yes. Both ESD-128-G-23 and ESD-128-T-23 are classified as active products with current inventory availability, ensuring long-term supply continuity compared to the obsolete Molex part.