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L777SDCG37POL2 D-Sub Connector: Equivalent & Substitute Parts
Part Overview
The L777SDCG37POL2 is a 37-position D-Sub plug connector manufactured by Amphenol ICC, designed for through-hole soldered applications. This connector features male pins, a 4 (DC, C) shell size layout, and operates across an extended temperature range of -55°C to 125°C. The part is active and in production with 921 units currently in stock.
Substitute parts are identified to address supply chain continuity, inventory availability, or specific application requirements where electrical and mechanical parameters remain compatible within established tolerances.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Connector Type | Plug, Male Pins |
| Number of Positions | 37 |
| Shell Size, Connector Layout | 4 (DC, C) |
| Mounting Type | Through Hole |
| Termination | Solder |
| Contact Material | Brass |
| Contact Finish | Gold |
| Shell Material, Finish | Steel, Tin Plated |
| Current Rating | 3A |
| Voltage Rating | 250V |
| Operating Temperature Range | -55°C ~ 125°C |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution compatibility for the L777SDCG37POL2 is determined by the following critical parameters:
Mandatory Matching Parameters:
- Connector Type: Plug, Male Pins
- Number of Positions: 37
- Shell Size, Connector Layout: 4 (DC, C)
- Mounting Type: Through Hole
- Termination: Solder
- Contact Material: Brass
- Contact Finish: Gold
- Material Flammability Rating: UL94 V-0
- Moisture Sensitivity Level: 1 (Unlimited)
- Row Configuration: 2 rows
Operational Parameter Considerations:
- Current Rating: Substitute parts rated at 6A exceed the 3A specification, providing operational compatibility with margin
- Voltage Rating: Substitute parts rated at 125V operate below the 250V specification; selection requires confirmation that application voltage does not exceed 125V
- Operating Temperature Range: Substitute parts operate to 105°C, below the 125°C maximum of the main part; selection requires confirmation that application does not exceed 105°C
- Shell Material and Finish: Variations in dielectric material (polyester vs. thermoplastic, glass filled) and shell finish do not affect substitutability for signal contact applications
All identified substitute parts share the same position count, connector layout, contact material, and flammability rating. TE Connectivity AMPLIMITE series parts provide functional equivalence across multiple variants differentiated by flange feature configuration.
Parameter Comparison
| Parameter | L777SDCG37POL2 (Amphenol ICC) | 2-5747705-1 (TE) | 208009-1 (TE) | 5208009-1 (TE) | 5745074-1 (TE) | 5745074-2 (TE) | 5745074-4 (TE) | 5747375-2 (TE) | 5747375-8 (TE) | 747375-2 (TE) | 747375-8 (TE) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Connector Type | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins |
| Number of Positions | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 |
| Shell Size, Connector Layout | 4 (DC, C) | 4 (DC, C) | 4 (DC, C) | 4 (DC, C) | 4 (DC, C) | 4 (DC, C) | 4 (DC, C) | 4 (DC, C) | 4 (DC, C) | 4 (DC, C) | 4 (DC, C) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Number of Rows | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Contact Type | Signal | Signal | Signal | Signal | Signal | Signal | Signal | Signal | Signal | Signal | Signal |
| Contact Material | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass |
| Contact Finish | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold |
| Material Flammability Rating | 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 | UL94 V-0 | UL94 V-0 |
| Current Rating (Amps) | 3A | 6A | 6A | 6A | 6A | 6A | 6A | 6A | 6A | 6A | 6A |
| Voltage Rating | 250V | 125V | 125V | 125V | 125V | 125V | 125V | 125V | 125V | 125V | 125V |
| Operating Temperature Range | -55°C ~ 125°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | RoHS non-compliant | ROHS3 Compliant | RoHS Compliant | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | RoHS non-compliant | Not applicable |
| Flange Feature | Board Side (M3) | Mating Side, Female Screwlock (4-40) | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Mating Side, Female Screwlock (4-40) | Mating Side, Female Screwlock (4-40) | Mating Side, Female Screwlock (4-40) | Housing/Shell (Unthreaded) | Housing/Shell (4-40) | Housing/Shell (Unthreaded) | Housing/Shell (4-40) |
Engineering Selection Recommendations
RoHS Compliance Considerations: The L777SDCG37POL2 is RoHS Compliant. Substitute parts include options meeting ROHS3 Compliant, RoHS Compliant, RoHS non-compliant, or Not applicable status. Selection of a RoHS-compliant substitute is required for applications where RoHS compliance is mandated. Parts 2-5747705-1, 5208009-1, 5745074-1, 5745074-2, 5745074-4, 5747375-2, and 5747375-8 meet RoHS or ROHS3 compliance. Parts 208009-1 and 747375-2 do not comply with RoHS. Part 747375-8 is not applicable for RoHS classification.
REACH Status Considerations: The L777SDCG37POL2 specification does not include REACH status information. Substitute parts specify REACH Unaffected, REACH Affected, or Vendor Undefined status. Applications requiring REACH Unaffected parts should select from: 2-5747705-1, 5208009-1, or 5747375-2. Parts with REACH Affected status (208009-1, 5745074-1, 5745074-2, 5745074-4, 5747375-8, 747375-2, 747375-8) are acceptable where REACH compliance is not a constraint.
Operating Parameter Compliance: All substitute parts operate within the specified electrical environment if the application voltage does not exceed 125V and operating temperature does not exceed 105°C. The higher current rating of substitute parts (6A vs. 3A) provides additional margin and does not preclude substitution.
Flange Feature Compatibility: The main part features a Board Side (M3) flange. Substitute parts employ different flange configurations: Mating Side Female Screwlock (4-40), Housing/Shell (Unthreaded), or Housing/Shell (4-40). Flange feature selection is determined by mechanical mounting requirements and does not affect electrical substitutability. Verify mechanical compatibility with target installation location before selection.
Frequently Asked Questions (FAQ)
Q: Can a substitute part with a 6A current rating replace a 3A-rated connector? A: Yes. The 6A rating of substitute parts exceeds the 3A specification of the main part. A higher current rating provides operational margin and does not limit substitution.
Q: What is the voltage constraint when using a substitute part? A: All identified substitute parts carry a 125V voltage rating, which is lower than the main part's 250V rating. The substitute part voltage rating is the limiting factor. Substitution is permissible only for applications where circuit voltage does not exceed 125V.
Q: Are there temperature limitations when substituting parts? A: Yes. Substitute parts are rated to 105°C maximum operating temperature, below the main part's 125°C rating. Substitution is valid only for applications where maximum operating temperature does not exceed 105°C.
Q: Which substitute parts meet current RoHS compliance requirements? A: Parts 2-5747705-1, 5208009-1, 5745074-1, 5745074-2, 5745074-4, 5747375-2, and 5747375-8 carry RoHS or ROHS3 Compliant status. Parts 208009-1 and 747375-2 are RoHS non-compliant. Part 747375-8 carries "Not applicable" status. Part selection depends on whether RoHS compliance is a project requirement.
Q: What is the difference between flange features, and does it affect substitution? A: Flange features determine mechanical attachment method. The main part uses Board Side (M3), while substitutes employ Mating Side Female Screwlock (4-40), Housing/Shell (Unthreaded), or Housing/Shell (4-40). Electrical substitution is not affected by flange choice, but mechanical fit and installation method depend on target application geometry and mounting hardware.
Q: Are all substitute parts physically compatible with existing connectors and mating equipment? A: All identified substitute parts share the same 37-position, 4 (DC, C) shell size layout and through-hole solder termination. Physical and electrical mating compatibility is maintained. Confirm that the specific flange feature of the selected substitute aligns with available mounting space and hardware.
Q: Does REACH status affect the electrical or mechanical performance of the connector? A: REACH status indicates substance compliance for European Union applications and does not alter electrical or mechanical performance. Selection of REACH Unaffected parts is necessary only for projects subject to REACH regulatory requirements.
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