Equivalent & Substitute Parts for Molex 0026192021

Part Overview

The Molex 0026192021 is a rectangular connector header designed for through-hole mounting in 2-position, single-row configurations with 0.156" (3.96mm) pitch spacing. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, maintenance, and production continuity. The part serves applications in automotive, industrial, medical, and telecommunications sectors where board-to-board or board-to-cable connectivity is required.

Substiute Parts

0026192021

MolexIn Stock: 11610026192021 Datasheet

Current PartRFQ

644753-2

TE Connectivity AMP ConnectorsIn Stock: 3023644753-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0026192021 is determined by strict alignment of the following electrical and mechanical parameters:

• Pitch Compatibility: Mating pitch must be 0.156" (3.96mm) to ensure mechanical and electrical interchangeability
• Position Count: 2-position configuration is mandatory
• Row Configuration: Single-row layout required
• Connector Type: Header format with male pin contact type
• Mounting Method: Through-hole solder termination
• Shrouding: Single-wall shrouded design
• Contact Geometry: Circular contact shape with tin finish on both mating and post surfaces
• Compliance: RoHS compliance status for regulatory alignment

The TE Connectivity AMP Connectors part number 644753-2 meets these substitution criteria across all critical parameters, enabling direct functional replacement in applications requiring 2-position, 3.96mm pitch header connectors.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 644753-2 is the qualified substitute for the obsolete Molex 0026192021 based on the following engineering criteria:

Product Status Alignment: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete original part.

Compliance Certification: Both parts maintain RoHS compliance, with the substitute meeting RoHS standards. This alignment ensures regulatory requirements are satisfied in applications subject to environmental compliance mandates.

Electrical and Mechanical Interchangeability: All critical parameters—pitch, position count, row configuration, contact type, mounting method, and shrouding design—are identical between the original and substitute parts. This ensures direct functional replacement without circuit board redesign or connector interface modification.

Material Specification Differences: The substitute employs copper alloy contacts and glass-filled thermoplastic insulation in place of brass contacts and polyamide insulation. These material variations maintain electrical and mechanical performance within the specified application envelope while supporting the substitute's active production status.

Enhanced Specifications: The substitute provides defined operating temperature range (-55°C to 105°C) and voltage rating (600VAC), offering additional technical documentation compared to the original part's unspecified ratings.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 644753-2 be used as a direct replacement for the Molex 0026192021 without PCB modification?

A: Yes. Both connectors share identical pitch (0.156"), position count (2), row configuration (1), mounting type (through-hole), and shrouding design (1-wall). No PCB layout changes are required for mechanical or electrical compatibility.

Q: What is the difference between the contact materials in these two parts?

A: The original Molex part uses brass contacts, while the TE Connectivity substitute uses copper alloy contacts. Both materials provide equivalent electrical conductivity and corrosion resistance for the specified application envelope. The material change reflects manufacturing process differences between manufacturers and does not affect functional performance.

Q: Are there differences in insulation material between these connectors?

A: The Molex 0026192021 uses polyamide (nylon) insulation, while the TE Connectivity 644753-2 uses glass-filled thermoplastic insulation. Both materials meet UL flammability requirements and provide equivalent electrical insulation properties for the specified voltage and temperature ranges.

Q: What is the fastening type difference between these parts?

A: The original Molex part uses push-pull fastening, while the TE Connectivity substitute uses friction lock fastening. Both fastening methods provide secure mating and demating functionality. The friction lock design in the substitute is standard for the MTA-156 series and does not affect connector reliability or performance.

Q: Does the substitute part support the same applications as the original?

A: The TE Connectivity 644753-2 supports general purpose and industrial applications. The original Molex part lists automotive, general purpose, industrial, medical, and telecommunications applications. For medical or automotive applications, verify that the substitute meets any application-specific qualification requirements beyond standard RoHS compliance.

Q: What is the inventory status for the substitute part?

A: The TE Connectivity 644753-2 is in active production with 2,923 pieces available in stock, compared to the original Molex part's obsolete status with 1,135 pieces remaining in inventory. The substitute's active status ensures ongoing availability for new designs and production replenishment.

Q: Are there any thermal or voltage limitations I should consider when substituting?

A: The TE Connectivity substitute provides specified operating temperature range (-55°C to 105°C) and voltage rating (600VAC). The original part does not specify these parameters. Verify that these ratings meet your application requirements. If the original design operated outside these ranges, additional evaluation may be necessary.