Molex 0901200784 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0901200784 is an active-status vertical header connector featuring 24 positions with 0.100" (2.54mm) pitch spacing. This through-hole component is designed for board-to-board or cable applications in automotive and general-purpose environments. The connector utilizes unshrouded, breakaway male pin contacts with gold-plated mating surfaces and tin-plated posts, operating across -55°C to 125°C. Substitute parts become necessary when the primary component reaches end-of-life status, inventory constraints occur, or design requirements necessitate alternative contact configurations or performance specifications.

Substiute Parts

0901200784

MolexIn Stock: 11410901200784 Datasheet

Current PartRFQ

4-103185-0

TE Connectivity AMP ConnectorsIn Stock: 15934-103185-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0901200784 is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for mechanical compatibility
• Connector Type: Header, Breakaway — functional classification requirement
• Contact Type: Male Pin — mating interface specification
• Mounting Type: Through Hole — PCB assembly method
• Termination: Solder — connection technology
• Number of Rows: 1 — single-row configuration

The substitute part TE Connectivity AMP Connectors 4-103185-0 shares the core pitch, connector type, contact type, mounting method, and termination technology. However, this part differs in position count (40 vs. 24), operating temperature range, contact materials, and product status (Obsolete vs. Active). These differences establish it as a functional equivalent for applications where the higher position count and alternative specifications are acceptable.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0901200784 maintains active product status with ROHS3 compliance, making it the preferred choice for new designs and applications requiring current regulatory adherence. The TE Connectivity 4-103185-0 is classified as obsolete and carries non-applicable RoHS status, indicating it does not meet current environmental compliance standards. Selection of the TE Connectivity substitute should be limited to legacy system maintenance or applications where the higher position count (40 vs. 24) and broader operating temperature floor (-65°C vs. -55°C) provide functional advantages that outweigh the compliance and availability constraints. Both parts maintain UL94 V-0 flammability ratings and identical pitch specifications, ensuring mechanical interchangeability within their respective position configurations.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 4-103185-0 directly replace the Molex 0901200784 in existing designs?

A: Direct replacement is not recommended without design review. While both connectors share identical 0.100" (2.54mm) pitch and through-hole solder termination, the TE Connectivity part provides 40 positions versus 24 positions. Physical board layout and mating connector compatibility must be verified before substitution.

Q: What are the key compatibility criteria between these two connectors?

A: Compatibility is established through matching pitch (0.100"), connector type (Header, Breakaway), contact type (Male Pin), mounting method (Through Hole), and termination technology (Solder). Differences in position count, operating temperature range, and contact post finish do not prevent functional operation but may affect application suitability.

Q: Why is the TE Connectivity part listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The part remains available through existing inventory channels but receives no further manufacturing support or design updates. New designs should prioritize the active Molex 0901200784.

Q: Are there compliance differences between these parts?

A: Yes. The Molex 0901200784 is ROHS3 compliant, meeting current environmental regulations. The TE Connectivity 4-103185-0 carries non-applicable RoHS status, reflecting its obsolete classification and lack of current regulatory certification.

Q: What is the significance of the contact finish difference (Tin vs. Tin-Lead)?

A: Both finishes provide adequate solder joint formation and electrical conductivity. Tin-lead finishes (TE Connectivity part) are associated with legacy manufacturing processes, while pure tin finishes (Molex part) align with current lead-free soldering standards and RoHS compliance requirements.

Q: Can these connectors be used interchangeably in automotive applications?

A: Both parts list automotive applications. However, the Molex 0901200784 operates across -55°C to 125°C, providing superior high-temperature performance suitable for underhood environments. The TE Connectivity part operates to only 105°C maximum, limiting its use in high-temperature automotive applications.