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Equivalent & Substitute Parts for L777DFE09POL2RM8
Part Overview
The L777DFE09POL2RM8 is a 9-position D-Sub plug connector manufactured by Amphenol ICC, designed for panel mount, through-hole solder applications. This connector features male pins, tin-plated steel shell with gold-plated contacts, and operates across an extended temperature range of -55°C to 155°C. The part is currently active in production with 1040 units in stock.
Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part's specifications, enabling direct functional replacement in applications where the connector serves the same circuit role. Substitution becomes necessary when the primary part reaches end-of-life status, experiences supply constraints, or when design requirements permit alternative mounting configurations or compliance certifications.
Substiute Parts
Key Parameters
| Parameter | L777DFE09POL2RM8 |
|---|---|
| Connector Type | D-Sub Plug, Male Pins |
| Number of Positions | 9 |
| Shell Size / Layout | 1 (DE, E) |
| Mounting Type | Panel Mount, Through Hole |
| Termination Method | Solder |
| Current Rating | 7.5A |
| Voltage Rating | 300V |
| Operating Temperature | -55°C to 155°C |
| Shell Material / Finish | Steel, Tin Plated |
| Contact Finish | Gold (30.0µin / 0.76µm) |
| Flange Feature | Housing/Shell (Unthreaded) |
| RoHS Status | RoHS Compliant |
| Material Flammability | UL94 V-0 |
Substitute Part Grouping Explanation
Substitute parts for the L777DFE09POL2RM8 are grouped based on strict alignment of the following critical parameters:
Primary Substitution Criteria:
- Connector type: D-Sub plug with male pins
- Position count: 9 positions
- Shell size and layout: 1 (DE, E)
- Termination method: Solder
- Material flammability rating: UL94 V-0
- Contact finish: Gold plated
Secondary Compatibility Factors:
- Mounting configuration (panel mount, through hole)
- Flange feature type (housing/shell design)
- Shell material and finish (steel, tin plated)
- Operating temperature range (minimum -55°C, maximum 155°C or higher)
- Current and voltage ratings (equal to or exceeding 7.5A and 300V respectively)
Substitute parts are organized into two categories:
Category A - TE Connectivity AMPLIMITE Series (1-338309-2, 1-5747871-3, 1-5747871-4, 1-5747871-6, 1-747871-4, 1-747871-6): These connectors share identical position count, shell size, solder termination, and UL94 V-0 rating. However, they feature through-hole mounting without panel mount capability and operate at reduced maximum temperatures (-55°C to 105°C) and lower current ratings (6A versus 7.5A). Flange features vary between unthreaded housing and female screwlock designs.
Category B - NorComp 172 Series (172-009-112R001, 172-E09-113R001, 172-E09-113R011, 172-E09-113R021): These connectors maintain panel mount, through-hole configuration and 9-position layout with solder termination. They share the same shell size and UL94 V-0 rating but operate at reduced temperature ranges (-50°C to 100°C) and lower current ratings (5A). Shell finishes and dielectric materials differ from the main part.
Parameter Comparison
| Parameter | L777DFE09POL2RM8 | 1-338309-2 | 1-5747871-3 | 1-5747871-4 | 1-5747871-6 | 1-747871-4 | 1-747871-6 | 172-009-112R001 | 172-E09-113R001 | 172-E09-113R011 | 172-E09-113R021 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Connector Type | D-Sub Plug, Male | D-Sub Plug, Male | D-Sub Plug, Male | D-Sub Plug, Male | D-Sub Plug, Male | D-Sub Plug, Male | D-Sub Plug, Male | D-Sub Plug, Male | D-Sub Plug, Male | D-Sub Plug, Male | D-Sub Plug, Male |
| Positions | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Shell Size | 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) | 1 (DE, E) |
| Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Mounting Type | Panel Mount, Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Panel Mount, Through Hole | Panel Mount, Through Hole | Panel Mount, Through Hole | Panel Mount, Through Hole |
| Current Rating (A) | 7.5 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 |
| Voltage Rating (V) | 300 | — | 125 | 125 | 125 | 125 | 125 | — | — | — | — |
| Operating Temperature | -55°C to 155°C | -55°C to 105°C | -55°C to 105°C | -55°C to 105°C | -55°C to 105°C | -55°C to 105°C | -55°C to 105°C | -50°C to 100°C | -50°C to 100°C | -50°C to 100°C | -50°C to 100°C |
| Shell Material | Steel, Tin Plated | Steel, Tin Plated | Steel, Tin Plated | Steel, Tin Plated | Steel, Tin Plated | Steel, Tin Plated | Steel, Tin Plated | Steel, Tin Plated | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Nickel Plated |
| Contact Finish | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold |
| Flange Feature | Housing/Shell (Unthreaded) | Housing/Shell (4-40) | Mating Side, Female Screwlock (4-40) | Mating Side, Female Screwlock (4-40) | Mating Side, Female Screwlock (4-40) | Mating Side, Female Screwlock (4-40) | Mating Side, Female Screwlock (4-40) | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Board Side (4-40) | Board Side (4-40) |
| UL94 Rating | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Obsolete | Active | Active | Active |
Engineering Selection Recommendations
Primary Substitutes (Preferred for Panel Mount Applications):
The NorComp 172-E series connectors (172-E09-113R001, 172-E09-113R011, 172-E09-113R021) are the most functionally aligned substitutes for the L777DFE09POL2RM8. All three variants maintain panel mount, through-hole configuration with identical 9-position, shell size 1 (DE, E) layout and solder termination. All are ROHS3 compliant and carry active product status. These parts are suitable for applications where the operating temperature requirement does not exceed 100°C and current demand does not exceed 5A. The primary trade-off is reduced thermal and electrical performance compared to the main part.
Secondary Substitutes (Through-Hole Only, No Panel Mount):
The TE Connectivity AMPLIMITE HD-20 series (1-5747871-3, 1-5747871-4, 1-5747871-6) and AMPLIMITE HDP-20 series (1-338309-2) provide electrical and mechanical compatibility for applications that do not require panel mount capability. These connectors feature identical 9-position, shell size 1 (DE, E) configuration with solder termination and UL94 V-0 rating. However, they are designed for through-hole mounting only and operate at reduced temperature ranges (-55°C to 105°C) and lower current ratings (6A). Parts 1-5747871-3, 1-5747871-4, and 1-5747871-6 are ROHS3 or RoHS compliant and carry active status. Part 1-338309-2 is ROHS3 compliant and active. These substitutes are not suitable for panel mount applications.
Not Recommended:
The NorComp 172-009-112R001 connector is obsolete and should not be selected for new designs despite maintaining panel mount configuration and matching the main part's unthreaded housing flange feature.
The TE Connectivity 1-747871-4 connector is RoHS non-compliant and should not be used in applications requiring RoHS compliance.
Compliance Considerations:
All recommended substitutes maintain UL94 V-0 material flammability rating and are ROHS3 or RoHS compliant, ensuring regulatory alignment with the main part. Moisture sensitivity level (MSL 1 - Unlimited) is consistent across all parts, indicating no special handling requirements during storage or assembly.
Frequently Asked Questions (FAQ)
Q: Can TE Connectivity AMPLIMITE series connectors replace the L777DFE09POL2RM8 in a panel mount application?
A: No. The AMPLIMITE series connectors (1-338309-2, 1-5747871-3, 1-5747871-4, 1-5747871-6, 1-747871-4, 1-747871-6) are designed for through-hole mounting only and do not include panel mount capability. They are suitable only for applications where the connector is mounted directly to a printed circuit board without panel interface requirements.
Q: What is the primary limitation when substituting NorComp 172-E series connectors?
A: The NorComp 172-E series (172-E09-113R001, 172-E09-113R011, 172-E09-113R021) operates at a maximum temperature of 100°C compared to the L777DFE09POL2RM8's 155°C rating, and supports a maximum current of 5A versus 7.5A. These connectors are suitable only for applications operating within these reduced electrical and thermal parameters.
Q: Are all substitute parts RoHS compliant?
A: Most substitute parts are ROHS3 or RoHS compliant. The exception is TE Connectivity 1-747871-4, which is RoHS non-compliant and should not be used in applications requiring RoHS compliance. All other listed substitutes meet RoHS requirements.
Q: What is the difference between the three NorComp 172-E09 variants?
A: The three NorComp 172-E09 variants differ in flange feature design: 172-E09-113R001 features an unthreaded housing/shell flange, while 172-E09-113R011 and 172-E09-113R021 both feature board-side 4-40 threaded flanges. All three maintain identical electrical specifications, panel mount capability, and active product status. Selection depends on the specific flange mounting requirement of the application.
Q: Can I use a substitute part with lower current rating in my application?
A: Substitution with lower current ratings is permissible only if the actual circuit current demand does not exceed the substitute part's rating. The L777DFE09POL2RM8 is rated for 7.5A, while NorComp 172-E series parts are rated for 5A and TE Connectivity AMPLIMITE series parts are rated for 6A. Verify that your application's maximum current requirement does not exceed the substitute part's rating before selection.
Q: What packaging options are available for substitute parts?
A: Packaging varies by part number. NorComp 172 series parts are supplied in trays. TE Connectivity 1-338309-2 is supplied in trays. TE Connectivity 1-5747871-3, 1-5747871-4, 1-5747871-6, and 1-747871-6 are supplied in tubes. TE Connectivity 1-747871-4 is supplied in bulk. Verify packaging compatibility with your procurement and assembly processes.
Q: Is the L777DFE09POL2RM8 still in active production?
A: Yes. The L777DFE09POL2RM8 is currently active with 1040 units in stock. Substitute parts are identified for design flexibility, supply chain contingency, or when application requirements permit alternative configurations rather than due to end-of-life status of the main part.
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