Molex 0740991024 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0740991024 is a surface mount rectangular connector header designed for 24-position, single-row applications with 0.100" (2.54mm) pitch mating. This shrouded header connector with male pins and solder termination serves general purpose, automotive, industrial, and medical applications. The part is currently active in production with full inventory availability. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component interchange based on equivalent electrical and mechanical specifications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	24
Number of Rows	1
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Surface Mount
Shrouding	Shrouded - 4 Wall
Termination	Solder
Fastening Type	Latch Holder
Contact Finish - Mating	Gold
Contact Material	Phosphor Bronze / Brass
Insulation Material	Polyester, Glass Filled / Thermoplastic
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0740991024 is determined by strict equivalence across the following critical parameters:

Connector Type & Contact Configuration: Header with male pins
Position Count & Row Configuration: 24 positions, single row
Pitch Specification: 0.100" (2.54mm) mating pitch
Mounting Technology: Surface mount solder termination
Shrouding & Fastening: Shrouded 4-wall design with latch holder
Contact Finish & Material: Gold-plated mating surface with tin-plated posts
Compliance & Certifications: UL94 V-0 flammability rating, ROHS3 compliance, MSL 1

The TE Connectivity AMP Connectors part number 7-1375582-3 meets all critical substitution criteria. Variations in contact material (brass vs. phosphor bronze), insulation material composition (thermoplastic vs. polyester glass-filled), and minor dimensional differences in contact length and insulation height do not preclude functional equivalence for standard board-to-board or board-to-cable applications.

Parameter Comparison

Parameter	Molex 0740991024	TE Connectivity 7-1375582-3	Compatibility
Manufacturer	Molex	TE Connectivity AMP Connectors	Different manufacturers
Series	SL 74099	AMPMODU MTE	Different series
Connector Type	Header	Header	Equivalent
Contact Type	Male Pin	Male Pin	Equivalent
Number of Positions	24	24	Equivalent
Number of Rows	1	1	Equivalent
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Equivalent
Termination	Solder	Solder	Equivalent
Fastening Type	Latch Holder	Latch Holder	Equivalent
Contact Length - Mating	0.240" (6.10mm)	0.230" (5.84mm)	Minor variation
Insulation Height	0.450" (11.43mm)	0.535" (13.60mm)	Minor variation
Contact Shape	Square	Square	Equivalent
Contact Finish - Mating	Gold	Gold	Equivalent
Contact Finish Thickness - Mating	15.0µin (0.38µm)	15.0µin (0.38µm)	Equivalent
Contact Material	Phosphor Bronze	Brass	Different material
Insulation Material	Polyester, Glass Filled	Thermoplastic	Different material
Material Flammability Rating	UL94 V-0	UL94 V-0	Equivalent
Insulation Color	Black	Black	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
ECCN	EAR99	EAR99	Equivalent
HTSUS	8536.69.4040	8536.69.4040	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

Both the Molex 0740991024 and TE Connectivity 7-1375582-3 are active production parts with ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts is based on availability, packaging format, and design-specific requirements.

The Molex 0740991024 is supplied in bulk packaging, while the TE Connectivity 7-1375582-3 is supplied in tray packaging. Both parts carry MSL 1 (unlimited moisture sensitivity level) and are suitable for automotive, general purpose, industrial, and medical applications.

Minor dimensional variations exist in contact length and insulation height. The Molex part features phosphor bronze contacts with polyester glass-filled insulation, while the TE Connectivity part features brass contacts with thermoplastic insulation. These material differences do not affect functional compatibility for standard mating applications.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 7-1375582-3 directly replace the Molex 0740991024 in existing designs?

A: Yes. Both parts meet equivalent specifications for connector type, position count, pitch, mounting method, shrouding, and termination. The parts are mechanically and electrically compatible for board-to-board and board-to-cable applications.

Q: What are the differences in contact material between these parts?

A: The Molex 0740991024 uses phosphor bronze contacts, while the TE Connectivity 7-1375582-3 uses brass contacts. Both materials are suitable for gold-plated mating surfaces and provide equivalent electrical performance in standard applications.

Q: Are there dimensional differences that affect PCB layout?

A: Minor variations exist in contact length (0.240" vs. 0.230") and insulation height (0.450" vs. 0.535"). These differences are within typical tolerance ranges for 0.100" pitch header connectors and do not require PCB redesign for standard applications.

Q: What is the difference in packaging between these parts?

A: The Molex 0740991024 is supplied in bulk packaging, while the TE Connectivity 7-1375582-3 is supplied in tray packaging. Packaging format does not affect component performance or compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, carry UL94 V-0 flammability certification, and are classified as EAR99 for export control purposes. Both parts have MSL 1 (unlimited) moisture sensitivity level.

Q: What applications are these connectors suitable for?

A: Both parts are rated for automotive, general purpose, industrial, and medical applications. The TE Connectivity part additionally lists telecommunications applications.

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