L17DCFRDA37PC309 D-Sub 37-Position Plug Connector: Equivalent & Substitute Parts

Part Overview

The L17DCFRDA37PC309 is a 37-position D-Sub plug connector manufactured by Amphenol ICC, featuring male pins with IDC (Insulation Displacement Contact) termination for ribbon cable applications. This connector is designed for free-hanging, in-line mounting configurations with a cable-side 4-40 flange. The part is currently active in production with 891 units in stock.

Substitute parts become necessary when the original part experiences extended lead times, supply constraints, or when design requirements permit alternative mounting configurations or electrical ratings. The substitute parts listed maintain core electrical and mechanical compatibility while offering variations in mounting type, current rating, and packaging options.

Substiute Parts

L17DCFRDA37PC309

Amphenol ICC (Commercial Products)In Stock: 984L17DCFRDA37PC309 Datasheet

Current PartRFQ

09664286700

HARTINGIn Stock: 104509664286700 Datasheet

SimilarRFQ

8237-6000

3MIn Stock: 16428237-6000 Datasheet

SimilarRFQ

8237-6003

3MIn Stock: 7778237-6003 Datasheet

SimilarRFQ

8237-6009

3MIn Stock: 9138237-6009 Datasheet

SimilarRFQ

8237-7000

3MIn Stock: 13538237-7000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the L17DCFRDA37PC309 is based on maintaining electrical and mechanical compatibility across the following critical parameters:

Critical Compatibility Parameters:

• Connector style (D-Sub), connector type (Plug, Male Pins), position count (37), row configuration (2), and shell size (4, DC/C layout) must remain identical across all substitutes
• Termination method (IDC, Ribbon Cable) must be preserved to ensure compatibility with existing ribbon cable assemblies
• Material flammability rating (UL94 V-0) and RoHS compliance status must meet or exceed the original specification
• Moisture sensitivity level (MSL 1) ensures unlimited shelf life without special storage requirements

Application-Dependent Parameters:

• Mounting type varies between free-hanging (in-line) and panel mount configurations; selection depends on circuit board layout and mechanical integration requirements
• Current rating ranges from 1A to 3A; selection depends on circuit current requirements
• Voltage rating and operating temperature ranges must support the intended application environment

Substitute Parts Identified:

• 09664286700 (HARTING): Panel mount variant with 2A current rating
• 8237-6000 (3M): Panel mount variant with 1A current rating, unthreaded housing
• 8237-6003 (3M): Panel mount variant with 1A current rating, 4-40 threaded housing
• 8237-6009 (3M): Panel mount variant with 1A current rating, unthreaded housing
• 8237-7000 (3M): Panel mount variant with 1A current rating, obsolete status

All substitute parts maintain the 37-position, 2-row D-Sub configuration with IDC ribbon cable termination and UL94 V-0 flammability rating.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection Criteria:

1. Mounting Configuration Requirement: The L17DCFRDA37PC309 is configured for free-hanging, in-line mounting with a cable-side 4-40 flange. All listed substitutes are panel mount variants. Selection of a substitute requires confirmation that the application can accommodate panel mount installation or that the circuit board design permits this modification.

2. Current Rating Compatibility: The original part supports 3A current rating. Substitutes range from 1A to 2A:

   • 09664286700 (HARTING) supports 2A and is the highest-rated substitute
   • 8237-6000, 8237-6003, 8237-6009, 8237-7000 (3M) support 1A

   Selection must ensure the substitute current rating meets or exceeds the circuit's maximum current requirement.

3. Active Product Status: For new designs or long-term production, prioritize active products:

   • L17DCFRDA37PC309 (Amphenol ICC): Active
   • 09664286700 (HARTING): Active
   • 8237-6000, 8237-6003, 8237-6009 (3M): Active
   • 8237-7000 (3M): Obsolete—avoid for new designs

4. RoHS and Compliance Status: All active substitutes meet RoHS3 compliance or higher, ensuring regulatory alignment with current environmental standards.

5. Flange Configuration: For applications requiring threaded mounting:

   • 8237-6003 (3M) features 4-40 threaded housing, matching the original part's flange specification
   • Other 3M variants feature unthreaded housing
   • 09664286700 (HARTING) features unthreaded housing

6. Contact Finish and Material: The original part specifies gold-plated brass contacts. Most substitutes use gold-plated copper alloy contacts. 09664286700 does not specify contact finish; verify with manufacturer if contact material is critical to application performance.

7. Packaging Consideration: Original part is supplied in trays. Substitutes are available in both tray and bulk packaging. Bulk packaging may require additional handling procedures for moisture control despite MSL 1 rating.

Recommended Substitution Priority:

• First choice: 8237-6003 (3M) if panel mount with 4-40 threaded housing is acceptable and 1A current rating is sufficient
• Second choice: 09664286700 (HARTING) if 2A current rating is required and unthreaded panel mount is acceptable
• Third choice: 8237-6000 or 8237-6009 (3M) if unthreaded panel mount configuration is acceptable

Frequently Asked Questions (FAQ)

Q1: Can I use a panel mount substitute in place of the free-hanging L17DCFRDA37PC309?

A: Panel mount substitutes require different mechanical integration into the circuit board. The original part is designed for cable-side mounting with a 4-40 flange. Panel mount variants require through-hole or surface mounting on the board itself. Substitution is possible only if the circuit board design can be modified to accommodate panel mount installation. Verify mechanical clearances and mounting hole patterns before proceeding.

Q2: What is the impact of using a 1A-rated substitute instead of the 3A-rated original part?

A: Current rating determines the maximum continuous current the connector can safely carry without exceeding temperature limits. If your circuit operates at currents exceeding 1A, a 1A-rated substitute will not be suitable. The 09664286700 (HARTING) at 2A provides an intermediate option. Verify your circuit's maximum current requirement before selecting a substitute.

Q3: Are the 3M 8237 series connectors interchangeable with each other?

A: The 3M 8237 series variants (8237-6000, 8237-6003, 8237-6009, 8237-7000) share identical electrical specifications (37 positions, 2 rows, 1A rating, IDC termination) but differ in flange configuration and product status. The primary differences are:

• 8237-6003: 4-40 threaded housing (matches original flange type)
• 8237-6000, 8237-6009: Unthreaded housing
• 8237-7000: Obsolete status

Within the same mounting configuration, they are mechanically interchangeable, but 8237-7000 should not be used for new designs.

Q4: Does the HARTING 09664286700 require special handling compared to the original part?

A: Both parts have MSL 1 (Unlimited) moisture sensitivity rating, meaning neither requires special moisture-controlled storage. However, the HARTING part does not specify contact finish thickness or operating temperature range. Obtain detailed specifications from HARTING if these parameters are critical to your application.

Q5: What is the difference between tray and bulk packaging?

A: Tray packaging provides individual compartments for each connector, reducing the risk of mechanical damage and simplifying inventory management. Bulk packaging supplies connectors in loose form, requiring careful handling to prevent damage. Despite both having MSL 1 rating, tray packaging is recommended for applications with strict quality control requirements.

Q6: Can I substitute the L17DCFRDA37PC309 with a different D-Sub position count?

A: No. The 37-position configuration is critical to electrical compatibility. All substitute parts listed maintain the 37-position, 2-row layout. Using a different position count will result in incompatibility with existing ribbon cable assemblies and mating connectors.

Q7: Is the gold contact finish on the original part essential for substitution?

A: Gold plating provides corrosion resistance and improves contact reliability. The original part specifies 30.0µin (0.76µm) gold plating on brass contacts. Most 3M substitutes match this specification. The HARTING 09664286700 does not specify contact finish; if contact corrosion resistance is critical to your application, request detailed contact material specifications from HARTING before substitution.

Q8: What is the significance of the UL94 V-0 flammability rating?

A: UL94 V-0 indicates the dielectric material meets the highest flammability classification, meaning it will not propagate flame and will self-extinguish. All listed substitutes maintain this rating, ensuring compliance with safety standards for applications in consumer electronics, industrial equipment, and other regulated environments.