L717DCF37P D-Sub 37 Position Plug Connector Equivalent & Substitute Parts

Part Overview

The L717DCF37P is a 37 position D-Sub plug connector manufactured by Amphenol ICC (Commercial Products). This connector features male pins with solder cup termination and is designed for free hanging, in-line applications. The part maintains active product status with 784 units in current inventory.

Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design requirements permit alternative mounting configurations or material specifications. The L717DCF37P can be substituted with compatible D-Sub 37 position plug connectors that maintain electrical and mechanical compatibility within specified operating parameters.

Substiute Parts

L717DCF37P

Amphenol ICC (Commercial Products)In Stock: 876L717DCF37P Datasheet

Current PartRFQ

172-037-102R001

NorComp Inc.In Stock: 1058172-037-102R001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L717DCF37P is determined by strict adherence to the following critical parameters:

Mandatory Compatibility Parameters:

• Connector type must be D-Sub plug with male pins
• Position count must equal 37
• Shell size and connector layout must be 4 (DC, C)
• Termination method must be solder cup
• Contact type must be signal
• Number of rows must be 2

Electrical Compatibility Parameters:

• Voltage rating must meet or exceed 300V
• Current rating must meet or exceed 7.5A
• Contact finish must be gold
• Shell material must be steel with tin plating

Environmental and Regulatory Parameters:

• Operating temperature range must encompass -55°C to 125°C or be compatible with the application environment
• RoHS compliance status must be verified for the intended application

The substitute part 172-037-102R001 (NorComp Inc.) shares the core D-Sub 37 position plug configuration with solder cup termination. However, this part exhibits differences in mounting type (panel mount versus free hanging), current rating (5A versus 7.5A), voltage rating specification, and operating temperature range (-50°C to 100°C versus -55°C to 125°C).

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection: The L717DCF37P remains the preferred selection for applications requiring the specified electrical and environmental parameters. This part maintains active product status with established supply availability and meets all stated performance criteria.

Substitute Part Considerations: The 172-037-102R001 is classified as obsolete and presents the following limitations for substitution:

1. Current Rating Limitation: The 5A current rating is below the L717DCF37P specification of 7.5A. Applications requiring the full 7.5A rating cannot use this substitute without electrical performance degradation.

2. Operating Temperature Range Limitation: The -50°C to 100°C range is narrower than the L717DCF37P range of -55°C to 125°C. Applications operating at temperatures below -50°C or above 100°C are not compatible with this substitute.

3. Mounting Type Difference: The panel mount configuration differs from the free hanging in-line mounting of the L717DCF37P. Mechanical integration requirements must be evaluated for compatibility.

4. Voltage Rating: The 172-037-102R001 does not specify a voltage rating, whereas the L717DCF37P is rated for 300V. This specification gap requires clarification for high-voltage applications.

5. Product Status: The obsolete status of the 172-037-102R001 indicates discontinued manufacturing and potential future supply unavailability.

Compliance Status: Both parts maintain RoHS compliance (RoHS Compliant and ROHS3 Compliant respectively) and carry EAR99 ECCN classification. Both are classified under HTSUS code 8536.69.8000.

Frequently Asked Questions (FAQ)

Q: Can the 172-037-102R001 be used as a direct replacement for the L717DCF37P?

A: The 172-037-102R001 shares the core D-Sub 37 position plug configuration with solder cup termination. However, direct replacement is not universal. The substitute part has a lower current rating (5A versus 7.5A), a narrower operating temperature range (-50°C to 100°C versus -55°C to 125°C), and uses panel mount configuration instead of free hanging in-line mounting. Substitution is only valid when the application requirements fall within the 172-037-102R001 specifications and the mounting configuration is compatible.

Q: What are the critical parameters that must match for D-Sub 37 position plug substitution?

A: The following parameters must match or be compatible: connector type (D-Sub plug with male pins), position count (37), shell size and layout (4 DC, C), number of rows (2), termination method (solder cup), and contact type (signal). Additionally, the substitute part's electrical ratings (voltage and current) must meet or exceed the application requirements, and the operating temperature range must encompass the intended operating environment.

Q: Why is the current rating difference significant?

A: The L717DCF37P is rated for 7.5A while the 172-037-102R001 is rated for 5A. If the application circuit draws current exceeding 5A, the substitute part will not safely handle the load and may experience thermal stress or contact degradation. Current rating is a critical electrical parameter that cannot be exceeded without risk of connector failure.

Q: Does the mounting type difference affect electrical performance?

A: Mounting type (free hanging in-line versus panel mount) is a mechanical integration parameter that does not directly affect electrical performance. However, it determines how the connector is physically integrated into the system. The L717DCF37P is designed for in-line cable applications, while the 172-037-102R001 is designed for panel-mounted applications. The mounting configuration must be compatible with the mechanical design of the application.

Q: What does the obsolete status of the 172-037-102R001 mean for long-term availability?

A: Obsolete status indicates that the manufacturer (NorComp Inc.) has discontinued production of this part. While current inventory may be available through distributors, future supply cannot be guaranteed. For new designs or long-term production requirements, the active status L717DCF37P is the recommended choice to ensure sustained component availability.

Q: Are both parts RoHS compliant?

A: Yes. The L717DCF37P is RoHS Compliant, and the 172-037-102R001 is ROHS3 Compliant. Both meet RoHS requirements for lead-free and restricted substance compliance. ROHS3 represents a more recent compliance standard revision.

Q: What is the significance of the contact finish thickness difference?

A: The L717DCF37P specifies a contact finish thickness of 8.00µin (0.203µm), while the 172-037-102R001 specifies flash gold plating. Flash plating is a thin, minimal gold layer applied for corrosion protection. The thicker 8.00µin specification on the L717DCF37P provides greater durability and longer contact life, particularly in applications with frequent mating cycles or harsh environments.

Q: Can the dielectric material difference affect performance?

A: Both parts use glass-filled dielectric materials: the L717DCF37P uses thermoplastic glass-filled material, while the 172-037-102R001 uses polybutylene terephthalate (PBT) glass-filled material. Both materials provide adequate electrical insulation and mechanical strength for D-Sub applications. The material difference does not create electrical incompatibility but may result in slightly different mechanical properties and environmental resistance characteristics.