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TE Connectivity 747840-2 D-Sub Connector Equivalent & Substitute Parts
Part Overview
The TE Connectivity 747840-2 is a 9-position D-Sub plug connector with right-angle solder termination, part of the AMPLIMITE HD-20 series. This connector features male pins, through-hole mounting, and is designed for signal applications with a 6A current rating and 125V voltage rating. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for new designs and production continuity.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Connector Style | D-Sub |
| Connector Type | Plug, Male Pins |
| Number of Positions | 9 |
| Number of Rows | 2 |
| Shell Size, Connector Layout | 1 (DE, E) |
| Mounting Type | Through Hole, Right Angle |
| Termination | Solder |
| Current Rating (Amps) | 6A |
| Voltage Rating | 125V |
| Backset Spacing | 0.318" (8.08mm) |
| Operating Temperature | -55°C ~ 105°C |
| Material Flammability Rating | UL94 V-0 |
| Contact Finish | Gold |
| Shell Material, Finish | Steel, Tin Plated |
Substitute Part Grouping Explanation
Substitution of the TE Connectivity 747840-2 is determined by strict alignment of the following critical parameters:
Primary Compatibility Criteria:
- Connector style: D-Sub
- Connector type: Plug, Male Pins
- Number of positions: 9
- Number of rows: 2
- Shell size and layout: 1 (DE, E)
- Mounting type: Through Hole, Right Angle
- Termination method: Solder
- Backset spacing: 0.318" (8.08mm)
Secondary Compatibility Criteria:
- Current rating: 6A or greater
- Voltage rating: 125V or greater
- Operating temperature range: Must encompass -55°C to 105°C minimum
- Material flammability: UL94 V-0
- Contact finish: Gold or equivalent conductive finish
Substitute parts are classified into two categories:
Direct Substitutes (Functionally Equivalent): Parts that meet all primary and secondary criteria with identical or superior electrical ratings and compliance status.
Similar Substitutes (Functionally Compatible): Parts that meet all primary criteria and core electrical requirements but may differ in secondary specifications such as flange feature design, contact material composition, or shell finish, while maintaining electrical and mechanical compatibility.
Parameter Comparison
| Parameter | 747840-2 (Main) | 5747840-2 | 621-009-660-041 | 09681635811 | 09681635812 | 09681635813 | 09681637811 | 09681637813 | 182-009-113R161 | 182-009-113R171 | 182-009-113R181 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | TE Connectivity | TE Connectivity | Mercury United Electronics | HARTING | HARTING | HARTING | HARTING | HARTING | NorComp Inc. | NorComp Inc. | NorComp Inc. |
| Connector Type | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins |
| Number of Positions | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Shell Size, Connector Layout | 1 (DE, E) | 1 (DE, E) | 1 (DE, E) | 1 (DE, E) | 1 (DE, E) | 1 (DE, E) | 1 (DE, E) | 1 (DE, E) | 1 (DE, E) | 1 (DE, E) | 1 (DE, E) |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle | Board Edge, Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Panel Mount, Through Hole, Right Angle | Panel Mount, Through Hole, Right Angle | Panel Mount, Through Hole, Right Angle |
| Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Backset Spacing | 0.318" (8.08mm) | 0.318" (8.08mm) | 0.318" (8.08mm) | 0.318" (8.08mm) | 0.318" (8.08mm) | 0.318" (8.08mm) | 0.318" (8.08mm) | 0.318" (8.08mm) | 0.318" (8.08mm) | 0.318" (8.08mm) | 0.318" (8.08mm) |
| Current Rating (Amps) | 6A | 6A | 3A per Contact | 6.5A | 6.5A | 6.5A | 6.5A | 6.5A | 5A | 5A | 5A |
| Voltage Rating | 125V | 125V | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 85°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 |
| Contact Finish | Gold | Gold | Gold | Gold or Gold-Palladium | Gold or Gold-Palladium | Gold or Gold-Palladium | Not Specified | Not Specified | Gold | Gold | Gold |
| Shell Material, Finish | Steel, Tin Plated | Steel, Tin Plated | Steel, Nickel Plated | Steel | Steel | Steel | Steel | Steel | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Nickel Plated |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Direct Substitute - Highest Compatibility:
The TE Connectivity 5747840-2 is the primary direct substitute for the 747840-2. This part maintains identical electrical specifications (6A current rating, 125V voltage rating, -55°C to 105°C operating temperature), mechanical configuration (9-position D-Sub plug, right-angle solder termination, 0.318" backset spacing), and material properties (UL94 V-0 flammability rating, gold contact finish, tin-plated steel shell). The 5747840-2 is active in production status and ROHS3 compliant, addressing the obsolescence of the original part while providing seamless functional replacement.
Compatible Substitutes - Electrical Equivalence with Design Variations:
The HARTING series (09681635811, 09681635812, 09681635813, 09681637811, 09681637813) provides electrical compatibility with enhanced current ratings (6.5A) and extended operating temperature ranges (-55°C to 125°C). These parts maintain the core D-Sub 9-position configuration, right-angle solder termination, and 0.318" backset spacing. Differences in flange feature design (M3 threaded, 4-40 threaded, or female screwlock) allow selection based on specific mounting requirements. All HARTING substitutes are ROHS3 compliant and active in production.
The NorComp 182 series (182-009-113R161, 182-009-113R171, 182-009-113R181) offers functional compatibility with panel mount capability in addition to through-hole mounting. These parts maintain 9-position D-Sub configuration, right-angle solder termination, and 0.318" backset spacing with 5A current rating and -55°C to 105°C operating temperature. Flange feature variations (unthreaded, 4-40 threaded, or female screwlock) provide mounting flexibility. All NorComp substitutes are ROHS3 compliant and active in production.
Limited Compatibility - Reduced Current Rating:
The Mercury United Electronics 621-009-660-041 meets core mechanical and electrical requirements but operates at 3A per contact, which is below the original 6A specification. This part is suitable only for applications where current requirements do not exceed 3A per contact. Additionally, the operating temperature range (-55°C to 85°C) is narrower than the original specification. This substitute is ROHS3 compliant and active in production but should be selected only when current and temperature limitations are acceptable.
Compliance Considerations:
All substitute parts listed are ROHS3 compliant and REACH unaffected, addressing regulatory requirements that the original RoHS non-compliant 747840-2 does not meet. For new designs and production applications subject to RoHS or REACH regulations, any of the active substitute parts provide compliant alternatives.
Frequently Asked Questions (FAQ)
Q: Can the TE Connectivity 5747840-2 be used as a direct replacement for the 747840-2 in existing designs?
A: Yes. The 5747840-2 maintains identical electrical ratings (6A, 125V), mechanical configuration (9-position D-Sub plug, right-angle solder termination, 0.318" backset spacing), and operating temperature range (-55°C to 105°C). The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 versus non-compliant). No design modifications are required.
Q: What is the difference between the HARTING 09681635811, 09681635812, and 09681635813 models?
A: These three HARTING parts differ only in flange feature design. The 09681635811 features an M3 threaded housing/shell. The 09681635812 features a 4-40 threaded housing/shell. The 09681635813 features a mating side female screwlock (4-40). All three maintain identical electrical specifications (6.5A current rating, -55°C to 125°C operating temperature) and mechanical configuration (9-position D-Sub plug, right-angle solder termination, 0.318" backset spacing). Selection depends on the specific mounting interface required.
Q: Are the NorComp 182 series connectors suitable for applications requiring panel mounting?
A: Yes. The NorComp 182-009-113R161, 182-009-113R171, and 182-009-113R181 support panel mount, through-hole, and right-angle mounting configurations. The three variants differ in flange feature design: 182-009-113R161 has an unthreaded housing/shell, 182-009-113R171 has a 4-40 threaded housing/shell, and 182-009-113R181 has a mating side female screwlock (4-40). All maintain 9-position D-Sub configuration and 0.318" backset spacing.
Q: Why does the Mercury United Electronics 621-009-660-041 have a lower current rating than the original part?
A: The 621-009-660-041 is rated at 3A per contact, compared to the 6A rating of the 747840-2. This difference reflects the design and material specifications of the Mercury connector. This part is suitable only for applications where per-contact current does not exceed 3A. For applications requiring the full 6A capability, the TE Connectivity 5747840-2 or HARTING series (6.5A) are recommended.
Q: What is the significance of the operating temperature range differences among substitute parts?
A: The original 747840-2 operates from -55°C to 105°C. The HARTING series extends this to -55°C to 125°C, providing additional thermal margin. The Mercury 621-009-660-041 is limited to -55°C to 85°C, which is narrower than the original specification. For applications operating at temperatures above 85°C or below the original range, verify that the selected substitute meets the required thermal envelope.
Q: Are all substitute parts RoHS compliant?
A: Yes. All substitute parts listed (5747840-2, 621-009-660-041, HARTING series, and NorComp series) are ROHS3 compliant. The original 747840-2 is RoHS non-compliant. For new designs and production applications subject to RoHS regulations, any of the active substitute parts provide compliant alternatives.
Q: What packaging options are available for these substitute parts?
A: The TE Connectivity 5747840-2 is supplied in tray packaging. The Mercury 621-009-660-041 and NorComp series (182-009-113R161, 182-009-113R171, 182-009-113R181) are supplied in tray packaging. The HARTING series (09681635811, 09681635812, 09681635813, 09681637811, 09681637813) are supplied in bulk packaging. Packaging selection may affect procurement and handling procedures.
Q: Can the HARTING and NorComp substitutes be used interchangeably with the original 747840-2?
A: The HARTING and NorComp parts are mechanically and electrically compatible with the 747840-2 for the core D-Sub 9-position, right-angle solder termination configuration. However, differences in flange feature design (threaded versus unthreaded, different thread sizes, female screwlock options) may require verification of the specific mounting interface in the target application. All parts maintain the 0.318" backset spacing and support through-hole right-angle mounting.
Q: What is the contact material composition of each substitute part?
A: The original 747840-2 uses brass contacts. The TE Connectivity 5747840-2 also uses brass contacts. The HARTING series uses copper alloy contacts. The NorComp series uses brass contacts. The Mercury 621-009-660-041 uses copper alloy contacts. Contact material differences do not affect electrical compatibility but may influence corrosion resistance and long-term reliability in specific environmental conditions.
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