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L77SDEG09SOL2GC309 D-Sub 9-Position Receptacle Equivalent & Substitute Parts
Part Overview
The L77SDEG09SOL2GC309 is a 9-position D-Sub receptacle connector manufactured by Amphenol ICC, featuring female sockets with vertical through-hole solder termination. This connector is classified as a D-shaped connector (Shell Size 1, DE/E layout) with board-side M3 flange mounting. The part maintains active product status with 970 units in current inventory.
D-Sub receptacle connectors serve as mating interfaces in electronic assemblies requiring standardized signal transmission across multiple positions. Equivalent and substitute parts become necessary when addressing supply chain constraints, packaging format requirements, or specific flange configuration needs while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | L77SDEG09SOL2GC309 Specification |
|---|---|
| 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 |
| Termination | Solder |
| Flange Feature | Board Side (M3) |
| Shell Material, Finish | Steel, Tin Plated |
| Contact Finish | Gold |
| Contact Finish Thickness | 30.0µin (0.76µm) |
| Current Rating | 3A |
| Voltage Rating | 250V |
| Operating Temperature Range | -55°C to 125°C |
| Material Flammability Rating | UL94 V-0 |
| Contact Material | Phosphor Bronze |
| Dielectric Material | Thermoplastic, Glass Filled |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution compatibility for the L77SDEG09SOL2GC309 is determined by strict adherence to the following mandatory parameters:
Electrical Compatibility Requirements:
- Connector style: D-Sub (fixed)
- Connector type: Receptacle, Female Sockets (fixed)
- Number of positions: 9 (fixed)
- Number of rows: 2 (fixed)
- Shell size and layout: 1 (DE, E) (fixed)
- Termination method: Solder (fixed)
- Contact type: Signal (fixed)
- Material flammability rating: UL94 V-0 (fixed)
- Mounting type: Through Hole (fixed)
Mechanical Compatibility Considerations:
- Flange feature variations are acceptable when board-side mounting is maintained or when mating-side configurations do not interfere with assembly
- Shell material finish variations (Steel with or without Tin plating) are acceptable
- Contact finish variations (Gold or unspecified) are acceptable when electrical performance is maintained
- Dielectric material variations are acceptable provided UL94 V-0 rating is maintained
Performance Parameter Ranges:
- Current rating: Minimum 3A (substitute parts may exceed this specification)
- Voltage rating: Minimum 250V (substitute parts may have lower ratings if application permits)
- Operating temperature: Must encompass -55°C to 125°C range or be compatible with application requirements
- Contact material: Phosphor Bronze or Copper Alloy acceptable
Substitute parts listed below meet these criteria while offering alternative packaging formats, flange configurations, or manufacturer options.
Parameter Comparison
| Part Number | Manufacturer | Positions | Shell Size | Flange Feature | Termination | Current Rating (A) | Voltage Rating (V) | Operating Temp (°C) | Shell Material | Contact Finish | RoHS Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L77SDEG09SOL2GC309 | Amphenol ICC | 9 | 1 (DE, E) | Board Side (M3) | Solder | 3 | 250 | -55 to 125 | Steel, Tin Plated | Gold | RoHS Compliant | 970 |
| 09641127230 | HARTING | 9 | 1 (DE, E) | Housing/Shell (Unthreaded) | Solder | 7.5 | 100 | -20 to 125 | Steel | Not Specified | ROHS3 Compliant | 1024 |
| 09641127235 | HARTING | 9 | 1 (DE, E) | Board Side (4-40) | Solder | 7.5 | 100 | -20 to 125 | Steel, Tin Plated | Not Specified | ROHS3 Compliant | 1362 |
| 09661116503 | HARTING | 9 | 1 (DE, E) | Mating Side, Female Screwlock (4-40) | Solder | 6.5 | Not Specified | -55 to 125 | Steel | Not Specified | ROHS3 Compliant | 992 |
| 09661117503 | HARTING | 9 | 1 (DE, E) | Mating Side, Female Screwlock (4-40) | Solder | 6.5 | Not Specified | -55 to 125 | Steel | Not Specified | ROHS3 Compliant | 1148 |
| 09661556513 | HARTING | 9 | 1 (DE, E) | Mating Side, Female Screwlock (4-40) | Solder | 6.5 | Not Specified | -55 to 125 | Steel | Gold | ROHS3 Compliant | 1873 |
| 1-338313-2 | TE Connectivity AMP Connectors | 9 | 1 (DE, E) | Housing/Shell (4-40) | Solder | 6 | Not Specified | -55 to 105 | Steel, Tin Plated | Gold | ROHS3 Compliant | 2800 |
| 1-5747150-3 | TE Connectivity AMP Connectors | 9 | 1 (DE, E) | Mating Side, Female Screwlock (4-40) | Solder | 6 | 125 | -55 to 105 | Steel, Tin Plated | Gold | ROHS3 Compliant | 7581 |
| 1-5747150-4 | TE Connectivity AMP Connectors | 9 | 1 (DE, E) | Mating Side, Female Screwlock (4-40) | Solder | 6 | 125 | -55 to 105 | Steel, Tin Plated | Gold | RoHS Compliant | 1757 |
| 1-5747150-6 | TE Connectivity AMP Connectors | 9 | 1 (DE, E) | Mating Side, Female Screwlock (4-40) | Solder | 6 | 125 | -55 to 105 | Steel, Tin Plated | Gold | RoHS Compliant | 3384 |
| 1-747150-4 | TE Connectivity AMP Connectors | 9 | 1 (DE, E) | Mating Side, Female Screwlock (4-40) | Solder | 6 | 125 | -55 to 105 | Steel, Tin Plated | Gold | RoHS non-compliant | 1899 |
Engineering Selection Recommendations
Primary Substitutes (Highest Compatibility):
The HARTING 09641127235 and TE Connectivity 1-5747150-3, 1-5747150-4, and 1-5747150-6 connectors provide the closest functional equivalence to the L77SDEG09SOL2GC309. These parts maintain the 9-position D-Sub receptacle configuration with solder termination and through-hole mounting. The TE Connectivity AMPLIMITE HD-20 series (1-5747150 variants) offers the highest inventory availability (7581, 1757, and 3384 units respectively) and maintains RoHS compliance status.
Flange Configuration Considerations:
The L77SDEG09SOL2GC309 features board-side M3 flange mounting. Substitute parts with alternative flange configurations (mating-side screwlock or housing-shell mounting) are electrically compatible but require mechanical design verification to confirm PCB mounting compatibility and clearance requirements.
Voltage and Current Rating Assessment:
The original part specifies 250V and 3A ratings. Substitute parts with lower voltage ratings (100V or 125V) are acceptable for applications operating within those voltage parameters. All substitute parts exceed the 3A current requirement, providing margin for higher-current applications.
Temperature Range Compatibility:
The L77SDEG09SOL2GC309 operates across -55°C to 125°C. HARTING parts 09661116503, 09661117503, and 09661556513 maintain this full temperature range. TE Connectivity parts operate to 105°C maximum, which is acceptable for applications not requiring the full 125°C upper limit.
Compliance and Regulatory Status:
All substitute parts maintain UL94 V-0 flammability rating. HARTING parts carry ROHS3 compliance. TE Connectivity parts 1-5747150-3, 1-5747150-4, and 1-5747150-6 carry RoHS compliance. The part 1-747150-4 is RoHS non-compliant and should be avoided in applications requiring RoHS certification.
Packaging Format:
The original part is supplied in Tray packaging. HARTING substitutes are supplied in Bulk format. TE Connectivity 1-338313-2 is supplied in Tray format (matching original packaging). TE Connectivity 1-5747150 variants are supplied in Tube format. Packaging format does not affect electrical or mechanical compatibility.
Frequently Asked Questions (FAQ)
Q: Can I substitute a HARTING 09641127235 for the L77SDEG09SOL2GC309 in my application?
A: The HARTING 09641127235 is electrically and mechanically compatible as a 9-position D-Sub receptacle with solder termination and through-hole mounting. The primary difference is the flange configuration: the HARTING part features board-side 4-40 mounting versus the original M3 mounting. Verify that your PCB mounting holes accommodate 4-40 fasteners before substitution. The HARTING part also operates at 100V maximum versus the original 250V specification.
Q: What is the difference between the TE Connectivity 1-5747150-3, 1-5747150-4, and 1-5747150-6 variants?
A: These three parts are functionally identical 9-position D-Sub receptacles with mating-side female screwlock flanges and solder termination. The primary difference is packaging: 1-5747150-3 is supplied in Tube format, while 1-5747150-4 and 1-5747150-6 are also supplied in Tube format. All three maintain identical electrical specifications (6A current, 125V voltage, -55°C to 105°C operating range) and gold contact finish. Inventory availability differs: 1-5747150-3 has 7581 units, 1-5747150-4 has 1757 units, and 1-5747150-6 has 3384 units.
Q: Does the contact finish difference (Gold versus unspecified) affect compatibility?
A: Contact finish does not affect electrical compatibility for signal transmission. Gold plating provides enhanced corrosion resistance and contact reliability. Substitute parts with unspecified contact finish (HARTING 09641127230, 09641127235, 09661116503, 09661117503) are electrically compatible with the original gold-plated part. Selection should be based on application environmental requirements and corrosion exposure.
Q: Can I use a substitute part with a lower voltage rating (100V or 125V) instead of the original 250V specification?
A: Substitute parts with lower voltage ratings are compatible only if your application operates within those voltage limits. The original L77SDEG09SOL2GC309 is rated for 250V operation. HARTING parts 09641127230 and 09641127235 are rated for 100V maximum. TE Connectivity parts are rated for 125V maximum. Do not use lower-rated parts in applications exceeding their voltage specifications.
Q: What is the significance of the flange feature differences (Board Side M3 versus Mating Side Screwlock)?
A: Flange features determine how the connector mounts to the PCB. Board-side M3 mounting uses M3 threaded fasteners through the flange into the PCB. Mating-side female screwlock mounting uses 4-40 fasteners on the mating connector to secure the assembly. These are mechanically different mounting approaches. Verify your PCB design accommodates the substitute part's flange configuration before selection.
Q: Are all substitute parts RoHS compliant?
A: Most substitute parts carry RoHS or ROHS3 compliance. The exception is TE Connectivity 1-747150-4, which is RoHS non-compliant. For applications requiring RoHS certification, select from HARTING parts (ROHS3 compliant) or TE Connectivity 1-5747150 variants and 1-338313-2 (RoHS or ROHS3 compliant).
Q: Does the dielectric material variation affect performance?
A: The original part uses Thermoplastic, Glass Filled dielectric. Substitute parts use Polycyclohexylenedimethylene Terephthalate (PCT), Polybutylene Terephthalate (PBT), or Polyester materials. All materials maintain UL94 V-0 flammability rating. Dielectric material variations do not affect electrical compatibility for standard signal transmission applications.
Q: Which substitute part offers the best inventory availability?
A: TE Connectivity 1-5747150-3 offers the highest inventory availability with 7581 units in stock, followed by 1-5747150-6 with 3384 units and 1-338313-2 with 2800 units. HARTING 09641127235 provides 1362 units. For immediate availability requirements, TE Connectivity AMPLIMITE HD-20 series parts are recommended.
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