TE Connectivity 747950-2 D-Sub Plug 37-Position IDC Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 747950-2 is a 37-position D-Sub plug connector with male pins, designed for IDC (Insulation Displacement Contact) and discrete wire termination. This connector belongs to the AMPLIMITE HDE-20 series and features a shielded, free-hanging configuration with cable-side male jackscrews. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and ensure long-term component availability for new designs and field replacements.

Substiute Parts

747950-2

TE Connectivity AMP ConnectorsIn Stock: 834747950-2 Datasheet

Current PartRFQ

1-747950-5

TE Connectivity AMP ConnectorsIn Stock: 12241-747950-5 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 747950-2 is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following categories:

Connector Architecture: Connector style (D-Sub), connector type (Plug, Male Pins), number of positions (37), number of rows (2), and shell size/layout (4, DC, C) must be identical.

Termination and Mounting: Termination method (IDC, Discrete Wire), mounting type (Free Hanging, In-Line), and flange feature (Cable Side, Male Jackscrew 4-40) must match exactly.

Electrical and Environmental Ratings: Wire gauge compatibility (22-26 AWG), voltage rating (250V), operating temperature range (-55°C ~ 105°C), and contact material (Phosphor Bronze) must be preserved.

Material and Finish Specifications: Shell material and finish (Steel, Tin Plated), contact finish (Gold), and material flammability rating (UL94 V-0) must remain consistent.

Series Designation: The substitute must belong to the AMPLIMITE HDE-20 series to ensure mechanical and electrical compatibility with existing installations and documentation.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 1-747950-5 is the direct equivalent substitute for the obsolete 747950-2 connector. Both parts maintain identical electrical, mechanical, and environmental specifications across all critical parameters, ensuring functional interchangeability in existing applications.

Product Status Consideration: The 747950-2 is classified as obsolete, while the 1-747950-5 maintains active product status. Selection of the active substitute ensures continued availability for procurement, technical support, and future component requirements.

Compliance Enhancement: The 1-747950-5 achieves RoHS compliance, whereas the 747950-2 is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements, the substitute part provides improved regulatory alignment without compromising electrical or mechanical performance.

Packaging Availability: The 1-747950-5 is supplied in bulk packaging with 1206 pieces in current inventory, compared to the 747950-2 available in limited quantities (819 pieces). The substitute offers superior supply chain availability.

Series Continuity: Both connectors belong to the AMPLIMITE HDE-20 series, ensuring compatibility with existing documentation, mating components, and installation procedures.

Frequently Asked Questions (FAQ)

Q: Are the 747950-2 and 1-747950-5 mechanically interchangeable?

A: Yes. Both connectors share identical mechanical specifications, including shell size (4, DC, C), mounting type (Free Hanging, In-Line), flange configuration (Cable Side, Male Jackscrew 4-40), and overall form factor. They are fully interchangeable in existing installations.

Q: Can the 1-747950-5 be used in applications originally designed for the 747950-2?

A: Yes. The substitute part maintains identical electrical ratings (250V), operating temperature range (-55°C ~ 105°C), wire gauge compatibility (22-26 AWG), and contact specifications (Phosphor Bronze with Gold finish). All functional requirements are preserved.

Q: What is the difference between the two part numbers?

A: The primary differences are product status and regulatory compliance. The 747950-2 is obsolete and RoHS non-compliant, while the 1-747950-5 is an active product with RoHS compliance. The connector specifications and performance characteristics are identical.

Q: Does the RoHS compliance of the 1-747950-5 affect its electrical performance?

A: No. RoHS compliance relates to material composition and environmental impact, not electrical performance. The 1-747950-5 maintains all electrical specifications of the 747950-2, including voltage rating, current capacity, and contact resistance characteristics.

Q: Are there packaging differences between these parts?

A: Yes. The 747950-2 is supplied with unspecified packaging, while the 1-747950-5 is supplied in bulk packaging. Both are suitable for component assembly and installation; packaging selection depends on procurement and inventory management requirements.

Q: Can the 1-747950-5 be used in new designs?

A: Yes. The 1-747950-5 is an active product with full technical support and availability. It is suitable for both replacement applications and new design implementations requiring 37-position D-Sub plug connectors with IDC termination.

Q: What is the wire gauge compatibility for both connectors?

A: Both the 747950-2 and 1-747950-5 support wire gauges from 22 to 26 AWG, accommodating standard signal and power distribution applications within this range.

Q: Are both connectors suitable for the same operating temperature range?

A: Yes. Both connectors operate across the identical temperature range of -55°C to 105°C, ensuring compatibility in thermal environments from cryogenic to elevated temperature applications.