Molex 0022033021 Equivalent & Substitute Parts

Part Overview

The Molex 0022033021 is a rectangular connector header designed for through-hole mounting in board-to-board or cable applications. This 2-position, 0.100" (2.54mm) pitch connector from the KK254 and 4030 series is classified as Active product status. Substitute parts are necessary when the primary part becomes unavailable, when design requirements demand alternative material specifications, or when compliance certifications differ from the original specification.

Substiute Parts

0022033021

MolexIn Stock: 6940022033021 Datasheet

Current PartRFQ

4-103321-0-02

TE Connectivity AMP ConnectorsIn Stock: 34374-103321-0-02 Datasheet

MFR RecommendedRFQ

5-146276-2

TE Connectivity AMP ConnectorsIn Stock: 306535-146276-2 Datasheet

MFR RecommendedRFQ

5-146277-2

TE Connectivity AMP ConnectorsIn Stock: 24635-146277-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0022033021 is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — exact match required
• Number of Positions: 2 — exact match required
• Number of Rows: 1 — exact match required
• Connector Type: Header — exact match required
• Contact Type: Male Pin — exact match required
• Mounting Type: Through Hole — exact match required
• Termination: Solder — exact match required
• Fastening Type: Push-Pull — exact match required
• Contact Shape: Square — exact match required
• Material Flammability Rating: UL94 V-0 — exact match required

All three substitute parts (TE Connectivity 4-103321-0-02, 5-146276-2, and 5-146277-2) satisfy these core electrical and mechanical compatibility criteria. Variations in contact finish, insulation material, and compliance certifications do not affect basic functional interchangeability within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity 5-146276-2 is the primary substitute for new designs and applications requiring active product status with RoHS compliance. This part maintains Active product status, achieves RoHS Compliance, and provides gold-plated mating contacts with liquid crystal polymer insulation material.

TE Connectivity 5-146277-2 is an alternative substitute offering Active product status with ROHS3 Compliance and REACH Unaffected certification. This part provides enhanced contact finish specifications (30.0µin gold plating) and is suitable for applications with strict environmental compliance requirements.

TE Connectivity 4-103321-0-02 is classified as Obsolete and carries RoHS non-compliant status. This part is not recommended for new designs or applications subject to RoHS regulations. Use only when legacy system compatibility is required and compliance exemptions are documented.

Frequently Asked Questions (FAQ)

Q: Can TE Connectivity 5-146276-2 be used as a direct replacement for Molex 0022033021?

A: Yes. Both parts share identical pitch (0.100"), position count (2), row configuration (1), connector type (Header), contact type (Male Pin), mounting method (Through Hole), termination (Solder), and fastening type (Push-Pull). Both meet UL94 V-0 flammability requirements and MSL 1 moisture sensitivity specifications.

Q: What is the difference between TE Connectivity 5-146276-2 and 5-146277-2?

A: Both parts are functionally equivalent for substitution purposes. The primary differences are contact finish thickness (5-146276-2: 15.0µin gold; 5-146277-2: 30.0µin gold) and REACH certification status (5-146276-2: Vendor Undefined; 5-146277-2: REACH Unaffected). Select 5-146277-2 for applications requiring explicit REACH compliance documentation.

Q: Why is TE Connectivity 4-103321-0-02 listed as Obsolete?

A: This part has been discontinued by the manufacturer. While functionally compatible with the Molex 0022033021, its Obsolete status and RoHS non-compliance make it unsuitable for new product development. Existing inventory may be available but future sourcing is not guaranteed.

Q: Are there mechanical compatibility concerns between the Molex and TE Connectivity parts?

A: No. All substitute parts maintain identical pitch spacing, position count, row configuration, contact shape (Square), and through-hole mounting specifications. Physical board layout compatibility is preserved.

Q: Does the change in insulation material from Polyamide to Liquid Crystal Polymer affect performance?

A: Within the specified parameter set, insulation material variation does not affect functional interchangeability. Both materials meet UL94 V-0 flammability requirements. Material selection may influence thermal performance or chemical resistance in specific applications, but these criteria are not part of the core substitution parameters.

Q: Which substitute part should be selected for RoHS-regulated applications?

A: TE Connectivity 5-146276-2 (RoHS Compliant) or 5-146277-2 (ROHS3 Compliant) are both acceptable. Avoid 4-103321-0-02 (RoHS non-compliant) in regulated environments.