Molex 0430450621 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0430450621 is an active-status rectangular connector header designed for through-hole, right-angle mounting applications. This shrouded 6-position connector with 3.00mm pitch serves board-to-cable/wire interconnection in automotive, industrial, medical, and telecommunications environments. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

0430450621

MolexIn Stock: 20330430450621 Datasheet

Current PartRFQ

DML-06-A-H-T-A-SBL

Adam TechIn Stock: 1666DML-06-A-H-T-A-SBL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0430450621 is determined by strict alignment of the following critical parameters:

• Connector type (Header) and contact type (Male Pin)
• Position count (6) and row configuration (2 rows)
• Mating pitch and row spacing (0.118" / 3.00mm)
• Mounting style (Through Hole, Right Angle)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)
• Contact geometry (Square shape)
• Compliance certifications (ROHS3, UL94 V-0)
• Moisture sensitivity level (MSL 1)

The Adam Tech DML-06-A-H-T-A-SBL meets these core substitution criteria. Variations in secondary parameters such as insulation material composition, contact post length tolerance, and voltage rating do not preclude functional substitution when application requirements fall within the substitute part's electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0430450621 and Adam Tech DML-06-A-H-T-A-SBL maintain active product status and full compliance with ROHS3 and UL94 V-0 standards. Selection between these parts should be based on:

• Availability and lead time requirements
• Packaging format preference (Molex supplied in Tray; Adam Tech in Bulk)
• Voltage rating alignment with application requirements (Molex rated 600V; Adam Tech rated 250V)
• Operating temperature specification confirmation (both support -40°C ~ 105°C range)
• Current rating specifications (Molex rated 8A; Adam Tech varies by wire gauge)
• Insulation material compatibility with application environment (Molex uses LCP glass-filled; Adam Tech uses Thermoplastic)

Both parts satisfy the core mechanical and electrical substitution criteria for standard board-to-cable interconnection applications within their respective electrical ratings.

Frequently Asked Questions (FAQ)

Q: Can the Adam Tech DML-06-A-H-T-A-SBL directly replace the Molex 0430450621 in all applications?

A: Direct substitution is valid for applications where the voltage requirement does not exceed 250V and current draw aligns with the Adam Tech part's wire gauge specifications. The Molex part's 600V rating provides higher voltage margin. Both parts share identical mechanical dimensions, pitch, shrouding, and mounting configuration.

Q: What is the significance of the contact post length difference (0.125" vs 0.126")?

A: The 0.001" (0.02mm) difference in contact post length falls within standard manufacturing tolerance for connector headers and does not affect mating compatibility or electrical performance in standard PCB through-hole applications.

Q: How do the insulation materials differ between these parts?

A: The Molex part uses Liquid Crystal Polymer (LCP) glass-filled insulation, while the Adam Tech part uses Thermoplastic insulation. Both materials achieve UL94 V-0 flammability rating. Material selection should align with specific environmental exposure requirements (temperature cycling, chemical exposure, mechanical stress).

Q: Are there packaging considerations when switching between these suppliers?

A: Yes. The Molex part is supplied in Tray packaging, while the Adam Tech part is supplied in Bulk packaging. Bulk packaging may require additional handling and organization for production environments accustomed to tray-based component management.

Q: Do both parts support the same current and voltage specifications?

A: No. The Molex 0430450621 is rated for 8A at 600V, while the Adam Tech DML-06-A-H-T-A-SBL is rated for current varying by wire gauge at 250V. Application voltage and current requirements must fall within the selected part's specifications.