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L77SDEG09SOL2RM8C309 D-Sub Receptacle Equivalent & Substitute Parts
Part Overview
The L77SDEG09SOL2RM8C309 is a 9-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This through-hole solder-terminated connector features female sockets in a DE/E shell size configuration with board-side M3 mounting and mating-side female screwlock. The connector is designed for signal applications with a 3A current rating and 250V voltage rating, operating across the temperature range of -55°C to 125°C. The part is RoHS compliant and currently active in production with 808 units in stock.
Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when design specifications allow for components with comparable electrical and mechanical characteristics. Substitute selection must maintain compatibility with the connector's 9-position layout, through-hole mounting, solder termination, and DE/E shell size.
Substiute Parts
Key Parameters
| Parameter | L77SDEG09SOL2RM8C309 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 |
| Termination | Solder |
| Contact Type | Signal |
| Current Rating (Amps) | 3A |
| Voltage Rating | 250V |
| Operating Temperature | -55°C ~ 125°C |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution logic for the L77SDEG09SOL2RM8C309 is based on the following critical parameters that must be maintained or exceeded:
Mandatory Compatibility 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
- Termination: Solder
- Contact Type: Signal
- Material Flammability Rating: UL94 V-0
- Moisture Sensitivity Level: 1 (Unlimited)
Performance Parameters (Substitutes must meet or exceed):
- Current Rating: 3A minimum
- Voltage Rating: 250V minimum
- Operating Temperature Range: Must encompass -55°C to 125°C
Substitute parts are grouped into two categories:
Category A - Direct Functional Equivalents: Parts meeting all mandatory parameters with current and voltage ratings equal to or exceeding the main part specifications.
Category B - Functional Alternatives: Parts meeting all mandatory parameters with current and voltage ratings below the main part specifications, suitable only for applications with reduced electrical demands.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Connector Type | Positions | Shell Size | Mounting | Termination | Current Rating (A) | Voltage Rating (V) | Operating Temp (°C) | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| L77SDEG09SOL2RM8C309 | Amphenol ICC | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 3 | 250 | -55 ~ 125 | RoHS Compliant |
| 09641127230 | HARTING | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 7.5 | 100 | -20 ~ 125 | ROHS3 Compliant |
| 09641127235 | HARTING | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 7.5 | 100 | -20 ~ 125 | ROHS3 Compliant |
| 09661116503 | HARTING | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 6.5 | Not Specified | -55 ~ 125 | ROHS3 Compliant |
| 09661117503 | HARTING | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 6.5 | Not Specified | -55 ~ 125 | ROHS3 Compliant |
| 09661556513 | HARTING | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 6.5 | Not Specified | -55 ~ 125 | ROHS3 Compliant |
| 1-338313-2 | TE Connectivity AMP Connectors | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 6 | Not Specified | -55 ~ 105 | ROHS3 Compliant |
| 1-5747150-3 | TE Connectivity AMP Connectors | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 6 | 125 | -55 ~ 105 | ROHS3 Compliant |
| 1-5747150-4 | TE Connectivity AMP Connectors | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 6 | 125 | -55 ~ 105 | RoHS Compliant |
| 1-5747150-6 | TE Connectivity AMP Connectors | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 6 | 125 | -55 ~ 105 | RoHS Compliant |
| 1-747150-4 | TE Connectivity AMP Connectors | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Solder | 6 | 125 | -55 ~ 105 | RoHS non-compliant |
Engineering Selection Recommendations
Primary Substitutes (Category A - Recommended for Direct Replacement):
The following parts are suitable for direct substitution based on maintained or exceeded electrical specifications and active product status:
-
1-5747150-3, 1-5747150-4, 1-5747150-6 (TE Connectivity AMP Connectors, AMPLIMITE HD-20 Series): These parts maintain the 9-position DE/E configuration with through-hole solder termination. Current rating of 6A exceeds the 3A requirement. Voltage rating of 125V is below the 250V specification but remains suitable for applications not requiring the full 250V rating. Operating temperature range of -55°C to 105°C covers the critical lower temperature extreme. All three variants are RoHS compliant or ROHS3 compliant with MSL 1 rating. Parts 1-5747150-4 and 1-5747150-6 carry RoHS Compliant status matching the main part.
-
1-338313-2 (TE Connectivity AMP Connectors, AMPLIMITE HDP-20 Series): Maintains 9-position DE/E configuration with through-hole solder termination. Current rating of 6A exceeds the 3A requirement. Operating temperature range of -55°C to 105°C covers the critical lower temperature extreme. ROHS3 compliant with MSL 1 rating. Packaging in tray format matches the main part.
Secondary Substitutes (Category B - Conditional Substitution):
The following parts meet all mandatory mechanical and connectivity parameters but have voltage ratings below the main part specification:
-
09641127235 (HARTING): Maintains 9-position DE/E configuration with through Hole solder termination. Current rating of 7.5A exceeds the 3A requirement. Voltage rating of 100V is below the 250V specification. Operating temperature range of -20°C to 125°C does not extend to the -55°C lower limit. ROHS3 compliant with MSL 1 rating. Suitable for applications operating above -20°C with voltage requirements not exceeding 100V.
-
09641127230 (HARTING): Maintains 9-position DE/E configuration with through-hole solder termination. Current rating of 7.5A exceeds the 3A requirement. Voltage rating of 100V is below the 250V specification. Operating temperature range of -20°C to 125°C does not extend to the -55°C lower limit. ROHS3 compliant with MSL 1 rating. Suitable for applications operating above -20°C with voltage requirements not exceeding 100V.
-
09661116503, 09661117503, 09661556513 (HARTING): These parts maintain 9-position DE/E configuration with through-hole solder termination. Current rating of 6.5A exceeds the 3A requirement. Voltage rating is not specified. Operating temperature range of -55°C to 125°C matches the main part specification. ROHS3 compliant with MSL 1 rating. Suitable for applications where voltage specification is not critical.
Non-Recommended Substitutes:
- 1-747150-4 (TE Connectivity AMP Connectors): While mechanically and electrically compatible, this part carries RoHS non-compliant status, making it unsuitable for applications requiring RoHS compliance.
Frequently Asked Questions (FAQ)
Q: Can I substitute the L77SDEG09SOL2RM8C309 with any of the listed HARTING parts?
A: HARTING parts 09641127235, 09641127230, 09661116503, 09661117503, and 09661556513 are mechanically compatible as 9-position DE/E D-Sub receptacles with through-hole solder termination. However, HARTING parts 09641127235 and 09641127230 have a maximum voltage rating of 100V compared to the main part's 250V rating and do not support the -55°C lower operating temperature limit. HARTING parts 09661116503, 09661117503, and 09661556513 support the full -55°C to 125°C temperature range but have unspecified voltage ratings. Selection depends on your application's voltage and temperature requirements.
Q: What is the difference between the TE Connectivity AMPLIMITE HD-20 variants (1-5747150-3, 1-5747150-4, 1-5747150-6)?
A: All three variants maintain identical mechanical and electrical specifications: 9-position DE/E receptacle, through-hole solder termination, 6A current rating, 125V voltage rating, and -55°C to 105°C operating temperature. The primary differences are packaging format (tube) and RoHS compliance status. Parts 1-5747150-4 and 1-5747150-6 are RoHS Compliant, while 1-5747150-3 is ROHS3 Compliant. All three have MSL 1 rating and are suitable for direct substitution.
Q: Why is the voltage rating lower on some substitute parts compared to the main part?
A: The main part L77SDEG09SOL2RM8C309 has a 250V voltage rating, while several substitutes have 100V or 125V ratings. These lower ratings reflect different design specifications and dielectric material selections by the manufacturers. Substitution with lower-voltage parts is acceptable only if your application operates within the substitute part's voltage specification. Applications requiring the full 250V rating must use parts with equivalent or higher voltage specifications.
Q: Are all substitute parts RoHS compliant?
A: Most substitute parts are ROHS3 compliant or RoHS compliant. The exception is 1-747150-4, which is RoHS non-compliant and is not recommended for applications requiring RoHS compliance. The main part L77SDEG09SOL2RM8C309 is RoHS Compliant. Parts 1-5747150-4 and 1-5747150-6 match this RoHS Compliant status exactly.
Q: What is the significance of the MSL 1 rating on all these parts?
A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life with no special moisture control requirements during storage or handling. All listed parts, including the main part, carry MSL 1 rating, meaning they can be stored and handled under standard conditions without moisture-related degradation concerns.
Q: Can I use 1-338313-2 as a substitute if my application requires operation at 125°C?
A: The 1-338313-2 has a maximum operating temperature of 105°C, which is below the 125°C upper limit of the main part. If your application requires sustained operation at temperatures between 105°C and 125°C, this part is not suitable. Use instead 1-5747150-3, 1-5747150-4, or 1-5747150-6, which support operation up to 105°C, or select parts with higher temperature ratings if available.
Q: What packaging formats are available for these substitute parts?
A: The main part L77SDEG09SOL2RM8C309 is supplied in tray packaging. Substitute parts are available in multiple packaging formats: 1-338313-2 is supplied in tray; 1-5747150-3, 1-5747150-4, and 1-5747150-6 are supplied in tube; 1-747150-4 is supplied in bulk; and HARTING parts are supplied in bulk. Packaging selection may depend on your procurement and assembly requirements.
Q: Are the contact materials different between the main part and substitutes?
A: The main part uses phosphor bronze contacts with gold finish (30.0µin thickness). HARTING substitutes use copper alloy contacts with unspecified finish. TE Connectivity substitutes use phosphor bronze contacts with gold finish. Contact material differences do not affect mechanical compatibility but may influence electrical performance characteristics in specific applications.
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