TE Connectivity 749721-7 D-Sub 68-Position Receptacle Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 749721-7 is a 68-position D-Type receptacle connector with female sockets, designed for through-hole solder termination applications. This connector belongs to the AMPLIMITE .050 III series and features a shielded steel shell with nickel plating and gold-plated contacts. The part maintains active product status and is widely used in industrial and telecommunications equipment requiring high-density signal interconnection.

Substitute parts become necessary when the primary part number experiences extended lead times, inventory constraints, or when design requirements mandate compliance with specific regulatory standards such as RoHS3 certification or REACH unaffected status.

Substiute Parts

749721-7

TE Connectivity AMP ConnectorsIn Stock: 979749721-7 Datasheet

Current PartRFQ

5749721-7

TE Connectivity AMP ConnectorsIn Stock: 20375749721-7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 749721-7 is determined by strict equivalence across all electrical and mechanical parameters. The substitute part 5749721-7 qualifies as a direct equivalent because it maintains identical specifications across the following critical parameters:

Electrical Parameters: Connector type (Receptacle, Female Sockets), number of positions (68), contact material (Phosphor Bronze), contact finish (Gold), current rating (1A), and voltage rating (30V).

Mechanical Parameters: Shell size and connector layout (0.050 Pitch x 0.100 Row to Row), mounting type (Through Hole), termination method (Solder), shell material and finish (Steel, Nickel Plated), flange feature configuration (Housing/Shell with 2-56 and Latchblocks), and overall connector style (D-Type).

Environmental Parameters: Operating temperature range (-55°C ~ 105°C), material flammability rating (UL94 V-0), dielectric material (Thermoplastic), and shielded feature configuration.

Series Designation: Both parts belong to the AMPLIMITE .050 III series, ensuring mechanical and electrical compatibility within the connector ecosystem.

The substitute part differs only in regulatory compliance status and inventory availability, not in form, fit, or function.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 5749721-7 serves as a direct functional equivalent to the 749721-7 for applications where form, fit, and function compatibility is the primary selection criterion. Both parts maintain identical electrical performance, mechanical configuration, and environmental operating specifications within the AMPLIMITE .050 III connector series.

Regulatory Compliance Consideration: The 5749721-7 achieves ROHS3 compliance status, whereas the 749721-7 is RoHS non-compliant. Applications subject to RoHS3 regulatory requirements or customer specifications mandating RoHS3 certification must utilize the 5749721-7 variant.

REACH Compliance Consideration: The 5749721-7 carries REACH Unaffected status, while the 749721-7 is REACH Affected. Designs requiring REACH unaffected component status must specify the 5749721-7.

Inventory and Availability: The 5749721-7 maintains higher inventory availability (2000 pieces) compared to the 749721-7 (936 pieces), supporting supply chain continuity for high-volume production requirements.

Application Compatibility: Both parts are suitable for identical through-hole solder termination applications, supporting 68-position D-Type receptacle connector requirements across industrial, telecommunications, and data processing equipment.

Frequently Asked Questions (FAQ)

Q: Can the 5749721-7 be used as a direct replacement for the 749721-7 in existing designs?

A: Yes. The 5749721-7 maintains identical electrical and mechanical specifications, including connector type, position count, pitch, mounting method, termination type, shell material, contact material, current rating, voltage rating, and operating temperature range. No design modifications are required for functional substitution.

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

A: The primary differences are regulatory compliance status and inventory availability. The 5749721-7 is ROHS3 compliant and REACH unaffected, while the 749721-7 is RoHS non-compliant and REACH affected. Both parts are electrically and mechanically identical.

Q: Are these connectors suitable for high-density signal applications?

A: Yes. Both the 749721-7 and 5749721-7 are 68-position D-Type receptacle connectors with 0.050-inch pitch and 0.100-inch row-to-row spacing, designed for high-density signal interconnection in industrial and telecommunications applications.

Q: What termination method do these connectors require?

A: Both connectors utilize solder termination for through-hole mounting on printed circuit boards. The solder termination method provides permanent mechanical and electrical connection suitable for production assembly processes.

Q: Are these connectors shielded?

A: Yes. Both the 749721-7 and 5749721-7 feature shielded construction with steel shells finished in nickel plating, providing electromagnetic interference (EMI) protection for signal integrity in high-noise environments.

Q: What is the maximum current and voltage rating for these connectors?

A: Both connectors are rated for 1 ampere maximum current and 30 volts maximum voltage. These ratings apply to each individual contact within the 68-position configuration.

Q: What is the operating temperature range for these connectors?

A: Both connectors operate across the temperature range of -55°C to +105°C, supporting applications in industrial, automotive, and telecommunications environments subject to wide temperature variations.

Q: What packaging format is used for these connectors?

A: Both the 749721-7 and 5749721-7 are supplied in tube packaging, suitable for automated assembly equipment and manual component handling in production environments.

Q: Do these connectors meet flammability standards?

A: Yes. Both connectors achieve UL94 V-0 material flammability rating, indicating compliance with fire safety standards for electronic equipment applications.

Q: What contact material is used in these connectors?

A: Both connectors utilize phosphor bronze contact material with gold plating finish, providing reliable electrical conductivity and corrosion resistance across the operating temperature range.