TE Connectivity 7-747844-1 D-Sub Receptacle Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 7-747844-1 is a 9 Position D-Sub Receptacle connector with female sockets, right-angle through-hole mounting, and solder termination. This connector is part of the AMPLIMITE HD-20 series and is classified as Active product status. The connector features a steel tin-plated shell with gold-plated contacts, female screwlock mating interface, and board lock functionality. Equivalent and substitute parts are identified to address inventory availability, compliance requirements, or specific application parameters while maintaining functional compatibility within D-Sub connector applications.

Substiute Parts

7-747844-1

TE Connectivity AMP ConnectorsIn Stock: 7607-747844-1 Datasheet

Current PartRFQ

5788797-1

TE Connectivity AMP ConnectorsIn Stock: 23505788797-1 Datasheet

Parametric EquivalentRFQ

747844-6

TE Connectivity AMP ConnectorsIn Stock: 1984747844-6 Datasheet

Parametric EquivalentRFQ

L77SDE09SA4CH4FC309

Amphenol ICC (Commercial Products)In Stock: 1622L77SDE09SA4CH4FC309 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7-747844-1 are identified based on strict parametric equivalence across critical connector specifications. The substitution logic is based on the following key parameters that must remain constant:

• Connector style (D-Sub)
• Connector type (Receptacle, Female Sockets)
• Number of positions (9) and rows (2)
• Shell size and layout (1, DE, E)
• Mounting type (Through Hole, Right Angle)
• Termination method (Solder)
• Shell material and finish (Steel, Tin Plated)
• Contact finish (Gold) and finish thickness (30.0µin)
• Flange feature (Mating Side, Female Screwlock 4-40)
• Backset spacing (0.318")
• Contact material (Phosphor Bronze)
• Material flammability rating (UL94 V-0)
• Moisture sensitivity level (1, Unlimited)
• Color (Black)

Substitute parts are grouped into parametric equivalents where all critical parameters match the main part specification. Variations in dielectric material, RoHS compliance status, current rating, voltage rating, operating temperature range, and manufacturer series are noted but do not disqualify substitution when all primary connector parameters align.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity 5788797-1: This substitute part maintains full parametric equivalence to the 7-747844-1 across all critical connector specifications. The primary distinction is the dielectric material composition (Polyamide/Nylon versus Thermoplastic) and RoHS3 compliance status. The 5788797-1 is suitable for applications requiring RoHS compliance. Inventory availability is higher at 2290 pieces.

TE Connectivity 747844-6: This substitute part is functionally identical to the main part 7-747844-1, sharing the same base product number (747844) and all critical connector parameters. Both parts are RoHS non-compliant with identical dielectric material specifications. The 747844-6 serves as a direct equivalent with 1876 pieces in inventory.

Amphenol ICC L77SDE09SA4CH4FC309: This substitute part from an alternative manufacturer maintains equivalence across connector geometry, mounting, and termination specifications. Differences include lower current rating (3A versus 6A), higher voltage rating (250V versus 125V), extended operating temperature range (-55°C to 125°C versus -55°C to 105°C), and RoHS compliance. The contact form is stamped rather than unspecified. This part is suitable for applications with higher voltage requirements or extended temperature operation but lower current demands. Inventory is 1555 pieces.

Selection between substitute parts depends on compliance requirements (RoHS status), current and voltage rating requirements, operating temperature specifications, and manufacturer preference. All parts are Active status and maintain the same D-Sub 9-position receptacle configuration with right-angle solder termination.

Frequently Asked Questions (FAQ)

Q: Can the 5788797-1 be used as a direct replacement for the 7-747844-1?

A: The 5788797-1 is a parametric equivalent with all critical connector specifications matching the 7-747844-1. The dielectric material differs (Polyamide/Nylon versus Thermoplastic), and the 5788797-1 is RoHS3 compliant while the 7-747844-1 is not. For applications requiring RoHS compliance, the 5788797-1 is suitable. For applications with no RoHS requirement, both parts are functionally equivalent.

Q: What is the difference between the 747844-6 and the 7-747844-1?

A: The 747844-6 and 7-747844-1 share the same base product number (747844) and are functionally identical across all critical parameters. Both are RoHS non-compliant, use Thermoplastic dielectric material, and have identical electrical and mechanical specifications. The 747844-6 serves as a direct equivalent with higher inventory availability.

Q: Can the Amphenol ICC L77SDE09SA4CH4FC309 replace the TE Connectivity 7-747844-1?

A: The L77SDE09SA4CH4FC309 maintains geometric and mounting equivalence but has different electrical ratings. The current rating is lower (3A versus 6A), and the voltage rating is higher (250V versus 125V). The operating temperature range is extended (-55°C to 125°C). This part is suitable for applications with lower current requirements and higher voltage specifications. Applications requiring 6A current at 125V should not use this substitute.

Q: Are all substitute parts available in the same packaging?

A: All parts listed are packaged in Tray format, consistent with the main part 7-747844-1.

Q: What is the significance of the contact finish thickness specification?

A: All parts maintain the same contact finish thickness of 30.0µin (0.76µm) gold plating, ensuring consistent contact resistance and reliability across all substitute options.

Q: Does the dielectric material difference between parts affect compatibility?

A: The dielectric material (Thermoplastic, Polyamide/Nylon, or Thermoplastic Glass Filled) affects mechanical and thermal properties but does not affect electrical compatibility in the connector interface. Selection depends on application requirements for temperature stability, mechanical strength, and compliance certifications.

Q: Which substitute part has the best inventory availability?

A: The TE Connectivity 5788797-1 has the highest inventory at 2290 pieces, followed by the 747844-6 at 1876 pieces and the L77SDE09SA4CH4FC309 at 1555 pieces.

Q: Are all substitute parts rated for the same operating temperature range?

A: The 7-747844-1, 5788797-1, and 747844-6 are rated for -55°C to 105°C. The L77SDE09SA4CH4FC309 has an extended range of -55°C to 125°C, making it suitable for higher temperature applications.