Molex 0940304021 Quick Connect Female Crimp Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0940304021 is a 0.187" (4.75mm) Quick Connect Female Crimp Connector designed for 18-24 AWG wire gauges. This non-insulated terminal is part of the 94030 series and features a brass contact with tin finish. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing design support and procurement continuity. Substitute parts must maintain electrical and mechanical compatibility while meeting current availability and compliance requirements.

Substiute Parts

0940304021

MolexIn Stock: 10670940304021 Datasheet

Current PartRFQ

61758-1

TE Connectivity AMP ConnectorsIn Stock: 546661758-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0940304021 is determined by the following critical parameters:

• Tab Width: 0.187" (4.75mm) - mechanical interface requirement
• Tab Thickness: 0.032" (0.81mm) - contact engagement specification
• Termination Type: Crimp - connection method
• Insulation: Non-Insulated - terminal construction
• Contact Material: Brass - electrical conductivity requirement
• Gender: Female - connector polarity

The TE Connectivity AMP Connectors 61758-1 qualifies as a substitute based on matching tab width, tab thickness, termination type, insulation specification, contact material, and gender. Wire gauge compatibility exists within the overlapping range of 18-20 AWG, which accommodates the primary application window of the original part.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 61758-1 is an active product with current manufacturing status and full ROHS3 compliance. The Molex 0940304021 is obsolete, creating supply chain risk for new designs and ongoing production. Selection of the TE Connectivity substitute is supported by:

• Identical mechanical interface dimensions (tab width and thickness)
• Matching electrical specifications (brass contact, crimp termination)
• Full regulatory compliance alignment (ROHS3, EAR99, HTSUS classification)
• Wire gauge overlap in the 18-20 AWG range, covering standard application requirements
• Active product status ensuring long-term availability

For applications requiring the full 18-24 AWG range of the original part, wire gauge 21-24 AWG would fall outside the substitute's specification and require alternative component evaluation.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 61758-1 directly replace the Molex 0940304021 in all applications?

A: Direct replacement is valid for applications using 18-20 AWG wire gauges. Applications requiring 21-24 AWG wire gauges fall outside the TE Connectivity part's specification and require alternative component selection.

Q: What are the critical dimensions that determine substitutability?

A: Tab width (0.187"), tab thickness (0.032"), and overall length are the primary mechanical parameters. These dimensions ensure proper mating with connector receptacles and contact engagement. The TE Connectivity 61758-1 maintains compatibility in these critical dimensions.

Q: Are there compliance differences between the two parts?

A: Both parts are ROHS3 compliant with identical MSL ratings (1 - Unlimited), ECCN classification (EAR99), and HTSUS codes (8536.90.4000). No compliance barriers exist for substitution.

Q: What is the packaging difference?

A: The TE Connectivity 61758-1 is supplied in Cut Tape (CT) packaging. Verify packaging compatibility with your assembly process requirements.

Q: Why is wire gauge compatibility limited to 18-20 AWG?

A: The TE Connectivity 61758-1 is specified for 16-20 AWG wire gauges. The Molex 0940304021 covers 18-24 AWG. The overlapping range is 18-20 AWG. Wire gauges 21-24 AWG exceed the substitute's maximum specification.