TE Connectivity 748953-1 D-Sub Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 748953-1 is a 25-position D-Sub plug connector with right-angle solder termination, designed for through-hole mounting applications. This connector features male pins, gold-plated brass contacts, and operates across a temperature range of -55°C to 105°C with a 125V rating and 6A current capacity.

The 748953-1 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production and field service requirements for systems utilizing this connector configuration.

Substiute Parts

748953-1

TE Connectivity AMP ConnectorsIn Stock: 821748953-1 Datasheet

Current PartRFQ

5748953-1

TE Connectivity AMP ConnectorsIn Stock: 13865748953-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 748953-1 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following areas:

Electrical Parameters: Voltage rating (125V), current rating (6A), contact finish type and thickness (gold, 30.0µin), and contact material (brass).

Mechanical Parameters: Connector type (D-Sub plug with male pins), position count (25), row configuration (2), shell size (3/DB/B), mounting orientation (through-hole right angle), termination method (solder), flange configuration (mating side female screwlock 4-40), and backset spacing (0.590").

Environmental Parameters: Operating temperature range (-55°C to 105°C) and material flammability rating (UL94 V-0).

The substitute part 5748953-1 satisfies all these criteria while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 5748953-1 is the direct substitute for the obsolete 748953-1. Both connectors are electrically and mechanically identical across all specified parameters, including connector configuration, contact specifications, voltage and current ratings, and operating temperature range.

The 5748953-1 offers significant advantages for new designs and ongoing production:

Product Status: The 5748953-1 maintains active product status, ensuring continued availability and manufacturer support, whereas the 748953-1 is obsolete.

Regulatory Compliance: The 5748953-1 is ROHS3 compliant, meeting current environmental regulations. The 748953-1 is RoHS non-compliant and does not satisfy modern procurement requirements.

Packaging: The 5748953-1 is supplied in tray packaging, providing standardized handling and inventory management.

For applications currently using the 748953-1, direct substitution with the 5748953-1 is supported without design modification or functional compromise.

Frequently Asked Questions (FAQ)

Q: Are the 748953-1 and 5748953-1 electrically interchangeable?

A: Yes. Both connectors share identical electrical specifications: 125V voltage rating, 6A current capacity, gold-plated brass contacts with 30.0µin thickness, and -55°C to 105°C operating temperature range.

Q: Are the 748953-1 and 5748953-1 mechanically interchangeable?

A: Yes. Both connectors are mechanically identical: 25-position D-Sub plugs with male pins, 2-row configuration, shell size 3 (DB/B), through-hole right-angle mounting, solder termination, mating-side female screwlock (4-40) flange, and 0.590" backset spacing.

Q: Why is the 748953-1 listed as obsolete?

A: The 748953-1 has reached end-of-life status. The 5748953-1 is the active replacement that maintains full functional and dimensional equivalence.

Q: What is the difference in packaging between these parts?

A: The 748953-1 packaging is not specified in available documentation. The 5748953-1 is supplied in tray packaging, which provides standardized handling and storage.

Q: Does the 5748953-1 meet current environmental regulations?

A: Yes. The 5748953-1 is ROHS3 compliant. The 748953-1 is RoHS non-compliant and does not satisfy current environmental procurement standards.

Q: Can I use the 5748953-1 as a direct replacement in existing designs?

A: Yes. The 5748953-1 is a direct substitute with no design modifications required. All electrical, mechanical, and environmental specifications are identical to the 748953-1.

Q: Are there any differences in contact finish between these connectors?

A: No. Both connectors feature gold-plated brass contacts with identical finish thickness of 30.0µin (0.76µm).

Q: What is the base product number for the 5748953-1?

A: The base product number is 5748953. The full part number 5748953-1 specifies the complete connector assembly.