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L77DFE09SU D-Sub 9-Position Receptacle Connector Equivalent & Substitute Parts
Part Overview
The L77DFE09SU is a 9-position D-Sub receptacle connector manufactured by Amphenol ICC, designed for panel mount, through-hole solder termination applications. This connector features female sockets in a DE/E shell size configuration with tin-plated steel housing and gold-plated contacts. The part is currently active in production with 1094 units in stock.
Substitute parts are identified when equivalent D-Sub receptacle connectors share the same core electrical and mechanical specifications: 9-position configuration, DE/E shell size, female socket type, solder termination, and compatible mounting interfaces. Alternative models may be required due to supply chain availability, packaging preferences, or specific feature requirements such as board lock mechanisms or different flange configurations.
Substiute Parts
Key Parameters
| Parameter | L77DFE09SU 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 | Panel Mount, Through Hole |
| Termination | Solder |
| Shell Material, Finish | Steel, Tin Plated |
| Contact Finish | Gold |
| Current Rating (Amps) | 7.5A |
| Voltage Rating | 300V |
| 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 eligibility is determined by strict alignment with the following core parameters:
Primary Compatibility Criteria:
- Connector type: Receptacle, Female Sockets
- Position count: 9 positions
- Shell size: DE/E (Size 1)
- Row configuration: 2 rows
- Termination method: Solder
- Mounting interface: Through hole compatibility
Secondary Compatibility Criteria:
- Flange feature type (panel mount, board side, or mating side configurations)
- Contact finish system (gold plating for signal integrity)
- Shell material and finish (steel construction)
- Current and voltage ratings (must meet or exceed application requirements)
- Operating temperature range (must encompass -55°C to 125°C minimum)
- Flammability compliance (UL94 V-0)
Substitute parts are grouped into three categories based on flange configuration: panel mount variants, board-side locking variants, and mating-side screwlock variants. Each category maintains electrical equivalence while offering different mechanical mounting options.
Parameter Comparison
| Part Number | Manufacturer | Connector Type | Positions | Shell Size | Mounting Type | Flange Feature | Termination | Shell Material, Finish | Contact Finish | Current Rating (A) | Voltage Rating (V) | Operating Temp (°C) | UL94 Rating | RoHS Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L77DFE09SU | Amphenol ICC | Receptacle, Female Sockets | 9 | 1 (DE, E) | Panel Mount, Through Hole | Housing/Shell (Unthreaded) | Solder | Steel, Tin Plated | Gold | 7.5 | 300 | -55 ~ 125 | V-0 | RoHS Compliant | 1094 |
| 09641127230 | HARTING | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Housing/Shell (Unthreaded) | Solder | Steel | Not Specified | 7.5 | 100 | -20 ~ 125 | V-0 | ROHS3 Compliant | 1024 |
| 09641127235 | HARTING | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Board Side (4-40) | Solder | Steel, Tin Plated | Not Specified | 7.5 | 100 | -20 ~ 125 | V-0 | ROHS3 Compliant | 1362 |
| 09661116503 | HARTING | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Mating Side, Female Screwlock (4-40) | Solder | Steel | Not Specified | 6.5 | Not Specified | -55 ~ 125 | V-0 | ROHS3 Compliant | 992 |
| 09661117503 | HARTING | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Mating Side, Female Screwlock (4-40) | Solder | Steel | Not Specified | 6.5 | Not Specified | -55 ~ 125 | V-0 | ROHS3 Compliant | 1148 |
| 09661556513 | HARTING | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Mating Side, Female Screwlock (4-40) | Solder | Steel | Gold | 6.5 | Not Specified | -55 ~ 125 | V-0 | ROHS3 Compliant | 1873 |
| 1-5747150-3 | TE Connectivity AMP Connectors | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Mating Side, Female Screwlock (4-40) | Solder | Steel, Tin Plated | Gold | 6 | 125 | -55 ~ 105 | V-0 | ROHS3 Compliant | 7581 |
| 1-5747150-4 | TE Connectivity AMP Connectors | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Mating Side, Female Screwlock (4-40) | Solder | Steel, Tin Plated | Gold | 6 | 125 | -55 ~ 105 | V-0 | RoHS Compliant | 1757 |
| 1-5747150-6 | TE Connectivity AMP Connectors | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Mating Side, Female Screwlock (4-40) | Solder | Steel, Tin Plated | Gold | 6 | 125 | -55 ~ 105 | V-0 | RoHS Compliant | 3384 |
| 1-747150-4 | TE Connectivity AMP Connectors | Receptacle, Female Sockets | 9 | 1 (DE, E) | Through Hole | Mating Side, Female Screwlock (4-40) | Solder | Steel, Tin Plated | Gold | 6 | 125 | -55 ~ 105 | V-0 | RoHS non-compliant | 1899 |
| 191-009-213L571 | NorComp Inc. | Receptacle, Female Sockets | 9 | 1 (DE, E) | Panel Mount, Through Hole | Mating Side, Female Screwlock (4-40) | Solder | Steel, Nickel Plated | Gold | 5 | Not Specified | -55 ~ 125 | V-0 | ROHS3 Compliant | 8799 |
Engineering Selection Recommendations
Panel Mount Configuration (Direct Mechanical Equivalent):
The 191-009-213L571 from NorComp Inc. maintains panel mount, through-hole mounting identical to the L77DFE09SU. Both connectors feature unthreaded or mating-side flange configurations suitable for panel cutout installation. The NorComp part carries ROHS3 compliance and operates across the full -55°C to 125°C temperature range. Current rating of 5A is lower than the L77DFE09SU specification of 7.5A; applications requiring the full 7.5A rating must verify NorComp part suitability. This part is available in high inventory (8799 units).
Board-Side Locking Configuration:
The HARTING 09641127235 provides board-side (4-40) mounting with tin-plated steel housing. This configuration is suitable for applications requiring mechanical board lock features. ROHS3 compliance is confirmed. Voltage rating of 100V is lower than the L77DFE09SU specification of 300V; applications operating above 100V must use alternative parts. Operating temperature minimum of -20°C does not extend to the full -55°C specification.
Mating-Side Screwlock Configuration:
HARTING parts 09661116503, 09661117503, and 09661556513 feature mating-side female screwlock (4-40) flanges. The 09661556513 variant includes gold contact finish matching the L77DFE09SU specification and operates across -55°C to 125°C. Current rating of 6.5A is lower than the L77DFE09SU specification of 7.5A. All three HARTING variants carry ROHS3 compliance.
TE Connectivity AMPLIMITE HD-20 series (1-5747150-3, 1-5747150-4, 1-5747150-6, and 1-747150-4) provide mating-side screwlock configurations with gold-plated contacts and tin-plated steel housing. Parts 1-5747150-3, 1-5747150-4, and 1-5747150-6 carry ROHS3 compliance. The 1-747150-4 variant is RoHS non-compliant and REACH-affected; use only in applications where RoHS compliance is not required. Current rating of 6A is lower than the L77DFE09SU specification of 7.5A. Operating temperature range of -55°C to 105°C does not extend to the full 125°C specification of the L77DFE09SU.
Vertical Through-Hole Configuration (No Panel Mount):
HARTING 09641127230 provides vertical through-hole mounting without panel mount capability. This configuration is suitable for PCB-only applications. Contact finish is not specified. Voltage rating of 100V is lower than the L77DFE09SU specification of 300V. Operating temperature minimum of -20°C does not extend to the full -55°C specification.
Frequently Asked Questions (FAQ)
Q: Can I substitute the L77DFE09SU with any 9-position D-Sub receptacle?
A: No. Substitution requires matching the core parameters: 9-position configuration, DE/E shell size, female socket type, solder termination, and compatible mounting interface. Flange configuration (panel mount, board side, or mating side) must align with the application's mechanical requirements. Electrical parameters including current rating, voltage rating, and operating temperature range must meet or exceed application specifications.
Q: What is the difference between panel mount and mating-side screwlock configurations?
A: Panel mount connectors (L77DFE09SU, 191-009-213L571) feature unthreaded or simple flanges designed for installation through a panel cutout. Mating-side screwlock configurations (HARTING 09661116503, 09661117503, 09661556513; TE Connectivity AMPLIMITE HD-20 series) feature threaded flanges on the mating face for mechanical coupling to compatible plugs. These are not interchangeable mounting styles; application design determines which configuration is required.
Q: Why do some substitute parts have lower current ratings than the L77DFE09SU?
A: Current rating depends on contact material, contact form (machined versus stamped), and shell design. The L77DFE09SU specifies 7.5A with machined contacts. Substitute parts with 6A or 6.5A ratings use different contact geometries or materials. Applications requiring 7.5A must verify that substitute parts meet this specification or operate at reduced current levels.
Q: Is the HARTING 09641127230 a direct substitute for the L77DFE09SU?
A: No. While both are 9-position D-Sub receptacles with solder termination, the HARTING 09641127230 lacks panel mount capability and specifies a maximum voltage of 100V compared to the L77DFE09SU specification of 300V. The operating temperature minimum of -20°C does not extend to the full -55°C specification. Use only in applications where these parameter reductions are acceptable.
Q: What does "ROHS3 Compliant" mean compared to "RoHS Compliant"?
A: RoHS Compliant indicates compliance with the original Restriction of Hazardous Substances Directive. ROHS3 Compliant indicates compliance with RoHS 3 (Directive 2015/863/EU), which includes additional restricted substances. ROHS3 is the current regulatory requirement in most markets. Parts marked as RoHS non-compliant (such as 1-747150-4) do not meet current environmental regulations and should be used only in applications where RoHS compliance is not mandated.
Q: Can I use the TE Connectivity 1-5747150-6 in an application requiring 125°C operation?
A: No. The TE Connectivity AMPLIMITE HD-20 series (1-5747150-3, 1-5747150-4, 1-5747150-6) specifies a maximum operating temperature of 105°C. The L77DFE09SU operates to 125°C. Applications requiring 125°C operation must use parts with this specification, such as the L77DFE09SU, HARTING 09661116503, 09661117503, 09661556513, or NorComp 191-009-213L571.
Q: What is the significance of contact finish thickness specifications?
A: Contact finish thickness (measured in microinches or micrometers) affects contact durability and signal integrity. The L77DFE09SU specifies 20.0µin (0.51µm) gold plating. The TE Connectivity 1-5747150-4 and 1-5747150-6 specify 30.0µin (0.76µm), providing thicker gold plating. Thicker plating generally provides longer contact life in high-cycle mating applications. Substitute parts with unspecified contact finish thickness should be evaluated for application-specific durability requirements.
Q: Are HARTING and TE Connectivity parts available in equivalent packaging to the L77DFE09SU?
A: The L77DFE09SU is packaged in Tray. HARTING substitute parts are packaged in Bulk. TE Connectivity AMPLIMITE HD-20 series parts 1-5747150-3, 1-5747150-4, and 1-5747150-6 are packaged in Tube; 1-747150-4 is packaged in Bulk. NorComp 191-009-213L571 is packaged in Tray. Packaging differences do not affect electrical or mechanical compatibility but may impact inventory management and handling procedures.
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