TE Connectivity 748981-1 D-Sub Receptacle Equivalent & Substitute Parts

Part Overview

The TE Connectivity 748981-1 is a 25-position D-Sub receptacle connector with female sockets, right-angle through-hole mounting, and solder termination. This connector belongs to the AMPLIMITE HD-20 series and is classified as an active product. The part features a mating-side female screwlock flange, gold-plated phosphor bronze contacts, and board lock functionality. Equivalent and substitute parts are identified to address inventory availability, compliance requirements, or procurement lead time considerations while maintaining electrical and mechanical compatibility.

Substiute Parts

748981-1

TE Connectivity AMP ConnectorsIn Stock: 823748981-1 Datasheet

Current PartRFQ

5748981-1

TE Connectivity AMP ConnectorsIn Stock: 13515748981-1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 748981-1 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part must maintain identical specifications for connector style, type, position count, row configuration, shell size, mounting orientation, termination method, contact properties, voltage rating, temperature range, and physical dimensions. The primary substitute identified is the TE Connectivity 5748981-1, which shares all core electrical and mechanical characteristics with the main part. Both connectors are manufactured by TE Connectivity AMP Connectors within the AMPLIMITE HD-20 series and feature identical contact geometry, flange configuration, and performance ratings. The substitution is valid based on the following key parameters: 25-position D-Sub receptacle configuration, right-angle through-hole solder termination, female screwlock flange, gold-plated phosphor bronze contacts, 125V voltage rating, -55°C to 105°C operating temperature range, and UL94 V-0 flammability compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the 748981-1 and 5748981-1 are electrically and mechanically equivalent D-Sub receptacle connectors suitable for direct substitution in applications requiring 25-position female socket configurations with right-angle solder termination. The primary distinction between these parts is regulatory compliance status. The 5748981-1 substitute part is ROHS3 compliant and REACH unaffected, whereas the main part 748981-1 is RoHS non-compliant with vendor-undefined REACH status. Selection between these parts should be based on applicable regulatory requirements for the end application and target market. Both parts maintain identical electrical performance, mechanical dimensions, contact properties, and thermal operating ranges. The substitute part 5748981-1 is recommended for applications subject to RoHS3 or REACH compliance mandates. The main part 748981-1 remains suitable for applications without such regulatory constraints. Inventory availability differs between the two parts, with 5748981-1 currently stocked at 1299 pieces and 748981-1 at 726 pieces.

Frequently Asked Questions (FAQ)

Q: Can the 5748981-1 be used as a direct replacement for the 748981-1 in existing designs?

A: Yes. The 5748981-1 is electrically and mechanically equivalent to the 748981-1. Both connectors share identical specifications for position count, shell size, mounting type, termination method, contact geometry, voltage rating, and operating temperature range. Direct substitution is supported without design modifications.

Q: What is the difference between the 748981-1 and 5748981-1?

A: The primary differences are regulatory compliance status and inventory levels. The 5748981-1 is ROHS3 compliant and REACH unaffected, while the 748981-1 is RoHS non-compliant with vendor-undefined REACH status. All electrical and mechanical parameters are identical.

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

A: The 5748981-1 should be selected for applications requiring RoHS3 compliance. This part meets current regulatory requirements for restricted substances in electrical and electronic equipment.

Q: Are the physical dimensions and mounting footprints identical between these parts?

A: Yes. Both the 748981-1 and 5748981-1 feature identical backset spacing of 0.318" (8.08mm), shell size 3 (DB, B), right-angle through-hole mounting configuration, and female screwlock flange geometry. PCB layout and mechanical mounting are interchangeable.

Q: Do both parts support the same contact finish and material specifications?

A: Yes. Both connectors feature gold-plated phosphor bronze contacts with 30.0µin (0.76µm) contact finish thickness. Contact material, finish type, and thickness specifications are identical.

Q: What is the operating temperature range for both parts?

A: Both the 748981-1 and 5748981-1 operate across the temperature range of -55°C to 105°C. Thermal performance and specifications are identical.

Q: Are both parts rated for the same voltage?

A: Yes. Both connectors are rated for 125V operation. Voltage specifications are identical.

Q: What packaging format is used for both parts?

A: Both the 748981-1 and 5748981-1 are supplied in tray packaging suitable for automated assembly and component handling.