Molex 0039301043 Equivalent & Substitute Parts

Part Overview

The Molex 0039301043 is a rectangular connector header, right-angle configuration, with 4 positions at 0.165" (4.20mm) pitch. This through-hole component features shrouded design with board lock functionality, designed for board-to-cable/wire applications in general purpose, industrial, and telecommunications environments. The part is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring compatible interconnect solutions.

Substiute Parts

0039301043

MolexIn Stock: 11760039301043 Datasheet

Current PartRFQ

1-1489805-1

TE Connectivity AMP ConnectorsIn Stock: 10361-1489805-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0039301043 is determined by strict alignment of the following critical parameters:

• Connector type (Header) and contact type (Male Pin)
• Mating pitch of 0.165" (4.20mm) with 2-row, 4-position configuration
• Row spacing of 0.165" (4.20mm)
• Through-hole, right-angle mounting with shrouded 4-wall design
• Solder termination with locking ramp fastening
• Polyamide/Nylon insulation material
• UL94 V-2 flammability rating

The TE Connectivity AMP Connectors 1-1489805-1 meets all these critical parameters, establishing it as a direct functional equivalent. Both parts share identical mating pitch, position count, row configuration, mounting orientation, shrouding style, and termination method. Both maintain UL94 V-2 compliance and polyamide insulation construction.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1-1489805-1 is a direct substitute for the obsolete Molex 0039301043. Both connectors share identical mating pitch, position configuration, row spacing, mounting orientation, shrouding design, and termination method. Both maintain UL94 V-2 flammability compliance and polyamide insulation construction with unlimited moisture sensitivity rating.

The TE Connectivity part offers the advantage of active product status, ensuring ongoing availability and supply chain continuity. Both parts carry identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications.

Minor dimensional variations exist: the TE Connectivity part has a slightly longer insulation height (0.394" vs 0.378") and marginally shorter post contact length (0.138" vs 0.142"). The TE Connectivity part specifies operating temperature range (-55°C ~ 105°C) and voltage rating (600VAC), parameters not provided for the Molex original. Contact finish on the mating surface differs (Tin vs Gold), with both using Tin on the post. Contact material differs (Copper Alloy vs Brass), with both materials suitable for the specified applications.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-1489805-1 directly replace the Molex 0039301043 in existing designs?

A: Yes. Both connectors share identical mating pitch (0.165"/4.20mm), position count (4), row configuration (2 rows), mounting type (through-hole right-angle), shrouding style (4-wall), and termination method (solder with locking ramp). The minor dimensional differences in post contact length and insulation height do not affect functional compatibility in standard board-to-cable applications.

Q: What are the key differences between these two connectors?

A: The primary differences are: (1) Contact finish on mating surface (Gold vs Tin), (2) Contact material (Brass vs Copper Alloy), (3) Insulation height (0.378" vs 0.394"), and (4) Post contact length (0.142" vs 0.138"). The TE Connectivity part additionally specifies operating temperature (-55°C ~ 105°C) and voltage rating (600VAC). Both maintain identical pitch, position configuration, and UL94 V-2 compliance.

Q: Are there any compliance or certification concerns with substitution?

A: No. Both parts are RoHS compliant, carry identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications, and maintain UL94 V-2 flammability rating. Both have unlimited moisture sensitivity (MSL 1). The TE Connectivity part is currently active, while the Molex original is obsolete.

Q: Does the difference in contact finish affect electrical performance?

A: Contact finish differences (Gold mating surface on Molex vs Tin on TE Connectivity) do not affect functional compatibility. Both finishes are standard for connector applications. The choice between them depends on specific application requirements for corrosion resistance and contact resistance characteristics, which are not differentiated in the provided specifications.

Q: What is the impact of the dimensional differences in post contact length and insulation height?

A: The post contact length difference (0.142" vs 0.138") and insulation height difference (0.378" vs 0.394") are minor and do not affect standard through-hole PCB mounting or mating with standard cable connectors. These variations fall within normal manufacturing tolerances for this connector category and do not impact functional compatibility.