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TE Connectivity 788750-1 D-Sub Receptacle Equivalent & Substitute Parts
Part Overview
The TE Connectivity 788750-1 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 obsolete. The part features a nickel-plated steel shell with gold-flashed contacts and board lock functionality.
Due to the obsolete product status of the 788750-1, equivalent and substitute parts from active manufacturers are necessary for new designs, production continuity, and long-term component availability. Active alternatives from HARTING and NorComp Inc. provide functionally compatible solutions with enhanced compliance certifications and extended operational specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Style | D-Sub |
| Connector Type | Receptacle, Female Sockets |
| Number of Positions | 9 |
| Number of Rows | 2 |
| Shell Size, Connector Layout | 1 (DE, E) |
| Mounting Type | Through Hole, Right Angle |
| Termination | Solder |
| Shell Material, Finish | Steel, Nickel Plated |
| Contact Finish | Gold |
| Features | Board Lock |
| Dielectric Material | Polybutylene Terephthalate (PBT) |
| Contact Type | Signal |
Substitute Part Grouping Explanation
Substitution of the TE Connectivity 788750-1 is determined by strict alignment of the following critical parameters:
Primary Substitution Criteria:
- Connector style: D-Sub
- Connector type: Receptacle, Female Sockets
- Number of positions: 9
- Number of rows: 2
- Shell size and layout: 1 (DE, E)
- Mounting type: Through Hole, Right Angle
- Termination method: Solder
- Contact type: Signal
- Board lock feature: Present
Secondary Compatibility Parameters:
- Flange feature configuration (Housing/Shell mounting options)
- Shell material composition (Steel construction)
- Dielectric material (PBT or equivalent polymers)
- Contact finish specifications (Gold or Gold-Palladium)
Substitute parts are grouped into two categories based on flange feature compatibility:
Group 1: Housing/Shell (4-40) Flange Feature Parts with 4-40 threaded mounting holes on the connector housing, matching the original 788750-1 flange specification.
Group 2: Housing/Shell (M3) Flange Feature Parts with M3 metric threaded mounting holes, providing metric-based mounting alternatives.
Group 3: Mating Side, Female Screwlock (4-40) Flange Feature Parts with screwlock coupling mechanisms on the mating side with 4-40 housing mounting, offering enhanced mating security.
Parameter Comparison
| Parameter | 788750-1 (TE Connectivity) | 09681535611 (HARTING) | 09681535612 (HARTING) | 09681535613 (HARTING) | 09681537611 (HARTING) | 09681537612 (HARTING) | 09681537613 (HARTING) | 182-009-213R161 (NorComp) | 182-009-213R171 (NorComp) | 182-009-213R181 (NorComp) |
|---|---|---|---|---|---|---|---|---|---|---|
| Connector Type | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets |
| Number of Positions | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Number of Rows | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| 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) |
| Mounting Type | Through Hole, Right Angle | 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 |
| Shell Material, Finish | Steel, Nickel Plated | Steel | Steel | Steel | Steel | Steel | Steel | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Nickel Plated |
| Contact Finish | Gold | Gold or Gold-Palladium | Gold or Gold-Palladium | Gold or Gold-Palladium | Not Specified | Not Specified | Not Specified | Gold | Gold | Gold |
| Contact Finish Thickness | Flash | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | Not Specified | Not Specified | Not Specified | Flash | Flash | Flash |
| Flange Feature | Housing/Shell (4-40) | Housing/Shell (M3) | Housing/Shell (4-40) | Mating Side, Female Screwlock (4-40) | Housing/Shell (M3) | Housing/Shell (4-40) | Mating Side, Female Screwlock (4-40) | Housing/Shell (Unthreaded) | Housing/Shell (4-40) | Mating Side, Female Screwlock (4-40) |
| Backset Spacing | 0.350" (8.89mm) | 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) |
| Features | Board Lock | Board Lock | Board Lock | Board Lock | Board Lock | Board Lock | Board Lock | Ground Strap | Ground Strap | Ground Strap |
| Dielectric Material | Polybutylene Terephthalate (PBT) | Polybutylene Terephthalate (PBT), Polyester, Glass Filled | Polybutylene Terephthalate (PBT), Polyester, Glass Filled | Polybutylene Terephthalate (PBT), Polyester, Glass Filled | Polybutylene Terephthalate (PBT), Polyester, Glass Filled | Polybutylene Terephthalate (PBT), Polyester, Glass Filled | Polybutylene Terephthalate (PBT), Polyester, Glass Filled | Polyamide (PA9T), Nylon 9T | Polyamide (PA9T), Nylon 9T | Polyamide (PA9T), Nylon 9T |
| Current Rating (Amps) | Not Specified | 6.5A | 6.5A | 6.5A | 6.5A | 6.5A | 6.5A | 5A | 5A | 5A |
| Operating Temperature | Not Specified | -55°C ~ 125°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 |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Primary Recommendation: HARTING 09681535612
The HARTING 09681535612 provides the closest functional equivalence to the TE Connectivity 788750-1. This part maintains the 4-40 threaded housing flange feature matching the original connector, ensuring direct mechanical compatibility with existing mounting hardware. The part is ROHS3 compliant and carries active product status with extended operational temperature range (-55°C to 125°C) compared to the obsolete original. The 6.5A current rating exceeds typical signal-level requirements for D-Sub applications.
Secondary Recommendation: HARTING 09681537612
The HARTING 09681537612 offers identical mechanical and electrical specifications to the primary recommendation with the same 4-40 housing flange configuration. This part serves as an alternative source option with equivalent performance characteristics and compliance certifications.
Tertiary Recommendation: NorComp 182-009-213R171
The NorComp 182-009-213R171 provides an alternative from a different manufacturer with ROHS3 compliance and active product status. This part features a 4-40 threaded housing flange and maintains gold contact finish specifications matching the original. The operating temperature range extends to -55°C to 105°C. The NorComp series includes ground strap features and panel mount capability, offering additional design flexibility. The 5A current rating is suitable for signal-level applications.
Flange Feature Considerations:
-
4-40 Housing Flange (Direct Replacement): HARTING 09681535612, 09681537612, and NorComp 182-009-213R171 provide direct mechanical substitution for the original 788750-1 mounting configuration.
-
M3 Housing Flange (Metric Alternative): HARTING 09681535611 and 09681537611 offer metric-based mounting for applications requiring M3 threaded holes. These parts require mounting hardware conversion.
-
Screwlock Mating Feature (Enhanced Coupling): HARTING 09681535613, 09681537613, and NorComp 182-009-213R181 incorporate female screwlock mechanisms on the mating side, providing positive coupling retention with 4-40 housing mounting.
Compliance and Availability:
All recommended substitute parts carry ROHS3 compliance certification, addressing regulatory requirements that the obsolete 788750-1 does not meet. All substitute parts maintain active product status with established supply chains and documented inventory availability.
Frequently Asked Questions (FAQ)
Q: Can HARTING parts with M3 flange features replace the TE Connectivity 788750-1 directly?
A: HARTING parts 09681535611 and 09681537611 feature M3 metric threaded mounting holes, while the original 788750-1 uses 4-40 UNC threaded holes. Direct mechanical substitution requires mounting hardware conversion. For applications where existing mounting hardware cannot be modified, select parts with 4-40 flange features instead.
Q: What is the difference between HARTING 09681535612 and 09681537612?
A: Both parts share identical electrical and mechanical specifications, including 4-40 housing flange configuration, 6.5A current rating, and -55°C to 125°C operating temperature range. The primary difference is inventory availability and manufacturing lot designation. Either part serves as a functional equivalent.
Q: Are NorComp parts compatible with the same mating connectors as the TE Connectivity 788750-1?
A: NorComp 182-009-213R171 and related parts maintain the same D-Sub 9-position, 2-row shell size (1 DE, E) and contact spacing as the original connector. These parts are compatible with standard D-Sub 9-position plugs and mating connectors designed for this shell size.
Q: What is the significance of the backset spacing difference between the original and substitute parts?
A: The TE Connectivity 788750-1 specifies 0.350" (8.89mm) backset spacing, while all substitute parts specify 0.318" (8.08mm). Backset spacing defines the distance from the mounting flange to the rear of the connector shell. This difference may affect board layout and component clearance. Verify PCB design compatibility before final part selection.
Q: Do substitute parts with screwlock features provide backward compatibility?
A: HARTING 09681535613, 09681537613, and NorComp 182-009-213R181 incorporate female screwlock mechanisms on the mating side. These parts accept standard D-Sub 9-position plugs without screwlock features, maintaining backward compatibility. The screwlock feature provides optional enhanced coupling security when mated with compatible plug connectors.
Q: What is the difference between gold and gold-palladium contact finishes?
A: The TE Connectivity 788750-1 specifies gold flash contact finish. HARTING substitute parts specify gold or gold-palladium finish at 30.0µin (0.76µm) thickness. Gold-palladium provides enhanced wear resistance and corrosion protection compared to pure gold. Both finishes are suitable for signal-level D-Sub applications and provide equivalent electrical performance.
Q: Are all substitute parts RoHS compliant?
A: All recommended substitute parts carry ROHS3 compliance certification. The original TE Connectivity 788750-1 is classified as RoHS non-compliant. Selection of RoHS-compliant alternatives ensures regulatory compliance for new designs and production applications subject to RoHS directives.
Q: What mounting options are available for NorComp parts?
A: NorComp 182-009-213R161, 182-009-213R171, and 182-009-213R181 support both panel mount and through-hole mounting configurations. The original TE Connectivity 788750-1 specifies through-hole mounting only. NorComp parts provide additional design flexibility for applications requiring panel-mounted connector options.
Q: How do operating temperature ranges compare between the original and substitute parts?
A: The TE Connectivity 788750-1 does not specify an operating temperature range. HARTING substitute parts operate from -55°C to 125°C, while NorComp parts operate from -55°C to 105°C. For applications requiring operation above 105°C, HARTING parts provide extended temperature capability.
Q: What is the board lock feature and is it present on all substitute parts?
A: Board lock is a mechanical feature that secures the connector to the PCB during assembly and prevents accidental disconnection. All HARTING substitute parts include board lock functionality. NorComp parts feature ground strap functionality instead of board lock. Select based on specific PCB retention requirements.
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