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TE Connectivity 788750-2 D-Sub Receptacle Equivalent & Substitute Parts
Part Overview
The TE Connectivity 788750-2 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. Due to its obsolete status, equivalent and substitute parts from active manufacturers are necessary for new designs, production continuity, and long-term component availability. The substitute parts listed maintain functional compatibility through matching connector style, position count, mounting type, and termination method.
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 |
| Contact Type | Signal |
| Shell Material, Finish | Steel, Nickel Plated |
| Contact Finish | Gold |
| Dielectric Material | Polybutylene Terephthalate (PBT) |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the TE Connectivity 788750-2 is determined by strict equivalence in the following parameters:
Critical Matching Parameters:
- 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
- Contact Type: Signal
Secondary Compatibility Parameters:
- Flange Feature (Housing/Shell mounting configuration)
- Backset Spacing (distance from mounting surface to mating face)
- Dielectric Material composition
- Contact Finish type and thickness
Substitute parts are grouped into two categories:
Category A - Direct Functional Equivalents: Parts with matching flange features (Housing/Shell 4-40) and backset spacing (0.350" or 0.318"), maintaining identical mounting footprints.
Category B - Compatible Alternatives: Parts with different flange features (M3 or Mating Side Female Screwlock) or alternative backset spacing, requiring PCB layout verification before substitution.
Parameter Comparison
| Parameter | 788750-2 (Main) | 747836-4 | 09681535611 | 09681535612 | 09681535613 | 09681537611 | 09681537612 | 09681537613 | 182-009-213R161 | 182-009-213R171 |
|---|---|---|---|---|---|---|---|---|---|---|
| Connector Style | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub |
| 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 | 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 |
| Contact Type | Signal | Signal | Signal | Signal | Signal | Signal | Signal | Signal | Signal | Signal |
| Flange Feature | Housing/Shell (4-40) | 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) |
| Backset Spacing | 0.350" (8.89mm) | 0.590" (14.99mm) | 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) |
| Shell Material, Finish | Steel, Nickel Plated | Steel, Tin Plated | Steel | Steel | Steel | Steel | Steel | Steel | Steel, Nickel Plated | Steel, Nickel Plated |
| Contact Finish | Gold | Gold | Gold or Gold-Palladium | Gold or Gold-Palladium | Gold or Gold-Palladium | Not Specified | Not Specified | Not Specified | Gold | Gold |
| Contact Finish Thickness | 15.0µin (0.38µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | Not Specified | Not Specified | Not Specified | Flash | Flash |
| Dielectric Material | Polybutylene Terephthalate (PBT) | Thermoplastic | 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 |
| Current Rating (Amps) | Not Specified | 6A | 6.5A | 6.5A | 6.5A | 6.5A | 6.5A | 6.5A | 5A | 5A |
| Voltage Rating | Not Specified | 125V | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified |
| Operating Temperature | Not Specified | -55°C ~ 105°C | -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 |
| Material Flammability Rating | Not Specified | 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 |
| RoHS Status | RoHS non-compliant | Not applicable | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | Not Applicable | Not Applicable |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Primary Recommendation - Direct Footprint Compatibility:
The TE Connectivity 747836-4 and NorComp 182-009-213R171 are the preferred substitutes for the 788750-2 when PCB layout constraints require identical mounting footprints. Both parts feature Housing/Shell (4-40) flange configuration and maintain compatibility with existing through-hole solder termination processes. The 747836-4 is from the same manufacturer (TE Connectivity) and AMPLIMITE HD-20 series, providing design continuity. The 182-009-213R171 offers ROHS3 compliance and active product status with established supply availability.
Secondary Recommendation - Backset Spacing Variation:
The HARTING 09681535612 and 09681537612 provide functional equivalence with modified backset spacing (0.318" versus 0.350"). These parts require PCB layout modification but offer superior compliance certifications (ROHS3 Compliant, REACH Unaffected) and extended operating temperature range (-55°C to 125°C). The 09681537612 includes Housing/Shell (4-40) flange configuration for direct mounting compatibility after PCB adjustment.
Compliance Considerations:
All substitute parts except 747836-4 are ROHS3 compliant, addressing regulatory requirements for new designs. The main part (788750-2) is RoHS non-compliant and obsolete, making substitution necessary for compliance-driven applications. HARTING parts (09681535611 through 09681537613) and NorComp parts (182-009-213R161 and 182-009-213R171) are REACH Unaffected, providing supply chain assurance for regulated markets.
Thermal Performance:
HARTING parts support extended operating temperature range (-55°C to 125°C) compared to the main part and TE Connectivity 747836-4 (-55°C to 105°C). NorComp parts operate within -55°C to 105°C range. Selection should align with application thermal requirements.
Current and Voltage Ratings:
The main part does not specify current or voltage ratings. Substitute parts provide rated specifications: TE Connectivity 747836-4 (6A, 125V), HARTING parts (6.5A), and NorComp parts (5A). Applications requiring specific electrical performance should reference these ratings during selection.
Frequently Asked Questions (FAQ)
Q: Can the TE Connectivity 788750-2 be directly replaced with any of the listed substitutes without PCB modification?
A: The TE Connectivity 747836-4 and NorComp 182-009-213R171 provide direct PCB compatibility due to matching Housing/Shell (4-40) flange configuration and backset spacing of 0.350" and 0.318" respectively. However, the 747836-4 has a backset spacing of 0.590", requiring PCB layout verification. The NorComp 182-009-213R171 with 0.318" backset spacing requires PCB modification. HARTING parts with 0.318" backset spacing also require PCB layout adjustment.
Q: What is the significance of backset spacing in D-Sub connector substitution?
A: Backset spacing defines the distance from the connector mounting surface to the mating face. The main part specifies 0.350" (8.89mm). Most substitute parts specify 0.318" (8.08mm), requiring PCB cutout and mounting hole repositioning. The TE Connectivity 747836-4 specifies 0.590" (14.99mm), requiring substantial PCB redesign. Backset spacing must match the PCB design or the connector will not seat properly.
Q: Are there differences in flange features between the main part and substitutes?
A: Yes. The main part features Housing/Shell (4-40) flange. Substitutes vary: TE Connectivity 747836-4 (Housing/Shell 4-40), HARTING 09681535611 and 09681537611 (Housing/Shell M3), HARTING 09681535612 and 09681537612 (Housing/Shell 4-40), HARTING 09681535613 and 09681537613 (Mating Side Female Screwlock 4-40), and NorComp parts (Housing/Shell 4-40 or Unthreaded). Flange feature differences affect mounting hole size and thread type, requiring PCB verification.
Q: What is the difference between HARTING parts with M3 versus 4-40 flange features?
A: M3 flange features use metric M3 threaded mounting holes, while 4-40 features use UNC 4-40 threaded mounting holes. These are not interchangeable without PCB modification. The main part uses 4-40 configuration. HARTING 09681535611 and 09681537611 use M3, requiring metric mounting holes. HARTING 09681535612 and 09681537612 use 4-40, maintaining compatibility with the original mounting specification.
Q: How does the contact finish thickness affect connector performance?
A: Contact finish thickness influences durability and mating cycle life. The main part specifies 15.0µin (0.38µm) gold finish. Most HARTING substitutes specify 30.0µin (0.76µm), providing thicker gold plating for extended contact life. NorComp parts specify flash gold finish, providing minimal plating thickness. Thicker finishes generally support higher mating cycle counts and improved corrosion resistance.
Q: Are all substitute parts suitable for RoHS-compliant applications?
A: No. The main part is RoHS non-compliant. The TE Connectivity 747836-4 has "Not applicable" RoHS status. All HARTING parts (09681535611 through 09681537613) and NorComp parts (182-009-213R161 and 182-009-213R171) are ROHS3 compliant, suitable for RoHS-regulated applications and new designs.
Q: What is the difference between REACH Affected and REACH Unaffected status?
A: REACH Affected indicates the part may contain substances of concern requiring compliance documentation. REACH Unaffected indicates the part does not contain listed substances of concern. The main part has "Vendor Undefined" REACH status. TE Connectivity 747836-4 is REACH Affected. All HARTING parts are REACH Unaffected, providing supply chain assurance for REACH-regulated markets. NorComp parts are REACH Unaffected.
Q: Can HARTING 09681537611 or 09681537612 be used as direct replacements despite backset spacing differences?
A: Direct replacement without PCB modification is not possible due to 0.318" backset spacing versus the main part's 0.350" spacing. However, these parts are functionally equivalent and can be used with PCB layout modification. The 09681537612 maintains Housing/Shell (4-40) flange compatibility, simplifying the transition. PCB cutout and mounting hole repositioning are required.
Q: What is the difference between Mating Side Female Screwlock and Housing/Shell flange features?
A: Housing/Shell flange features mount to the PCB with threaded holes on the connector shell. Mating Side Female Screwlock features include threaded inserts on the mating face for cable connector retention. HARTING 09681535613 and 09681537613 include Mating Side Female Screwlock (4-40), providing cable strain relief through mating-side locking. This differs from the main part's Housing/Shell configuration and affects cable assembly compatibility.
Q: Which substitute offers the best compliance profile for new designs?
A: HARTING parts 09681535612 and 09681537612 offer the most comprehensive compliance: ROHS3 compliant, REACH Unaffected, UL94 V-0 flammability rating, and extended operating temperature range (-55°C to 125°C). NorComp 182-009-213R171 also provides ROHS3 compliance and REACH Unaffected status with established supply availability. Both are suitable for regulated applications requiring compliance documentation.
Q: Are there inventory considerations when selecting a substitute?
A: Yes. The main part (788750-2) has 707 pieces in stock but is obsolete. Substitute inventory levels vary: TE Connectivity 747836-4 (763 pieces), HARTING 09681535611 (1238 pieces), HARTING 09681535612 (1362 pieces), HARTING 09681535613 (1162 pieces), HARTING 09681537611 (1000 pieces), HARTING 09681537612 (767 pieces), HARTING 09681537613 (1264 pieces), NorComp 182-009-213R161 (8733 pieces), and NorComp 182-009-213R171 (2344 pieces). NorComp parts offer the highest inventory availability.
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