L17HTNCGPOL2RM81C D-Sub 37-Position Plug Connector Equivalent & Substitute Parts

Part Overview

The L17HTNCGPOL2RM81C is a 37-position D-Sub plug connector manufactured by Amphenol ICC (Commercial Products). This through-hole solder-terminated connector features male pins, a 4 (DC, C) shell size layout, and mating-side female screwlock (M3) flange. The connector is rated for 5A at 600V with an operating temperature range of -55°C to 150°C and carries UL94 V-0 flammability certification. The product is currently active in inventory with 1048 pieces in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers offer improved compliance certifications, or when application requirements permit relaxed electrical specifications while maintaining core mechanical and functional compatibility.

Substiute Parts

L17HTNCGPOL2RM81C

Amphenol ICC (Commercial Products)In Stock: 1125L17HTNCGPOL2RM81C Datasheet

Current PartRFQ

09654616713

HARTINGIn Stock: 100609654616713 Datasheet

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5745074-2

TE Connectivity AMP ConnectorsIn Stock: 16535745074-2 Datasheet

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5786534-1

TE Connectivity AMP ConnectorsIn Stock: 10235786534-1 Datasheet

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A-DS 37 PP/Z

Assmann WSW ComponentsIn Stock: 877A-DS 37 PP/Z Datasheet

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D37P24A4PL00LF

Amphenol ICC (FCI)In Stock: 890D37P24A4PL00LF Datasheet

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D37P24B4GV00LF

Amphenol ICC (FCI)In Stock: 1236D37P24B4GV00LF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for D-Sub 37-position plug connectors is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Connector type: Plug with male pins
• Number of positions: 37
• Number of rows: 2
• Shell size and layout: 4 (DC, C)
• Mounting type: Through hole
• Contact type: Signal

Functionally Compatible Parameters (Allowable Variation):

• Termination method: Solder or press-fit acceptable for through-hole applications
• Flange feature: Mating-side screwlock (M3 or 4-40) or housing/shell mounting acceptable
• Current rating: Equal to or greater than 5A
• Voltage rating: Equal to or greater than 600V
• Operating temperature: Range must encompass -55°C minimum and 150°C maximum, or application-specific subset
• Shell finish: Steel with nickel, tin, or tin-nickel plating acceptable
• Contact finish: Gold or equivalent signal-grade finish
• Compliance: RoHS3 compliant or RoHS non-compliant acceptable based on application requirements

The following parts meet substitution criteria for the L17HTNCGPOL2RM81C:

1. 09654616713 (HARTING) – Equivalent 37-position D-Sub plug with higher current rating (6.5A), UL94 V-0 rated, RoHS3 compliant, operating to -55°C ~ 125°C
2. 5745074-2 (TE Connectivity AMP) – Equivalent 37-position D-Sub plug, AMPLIMITE HD-20 series, 6A rated, RoHS compliant, operating to -55°C ~ 105°C
3. 5786534-1 (TE Connectivity AMP) – Equivalent 37-position D-Sub plug, press-fit termination, AMPLIMITE HD-20 series, RoHS3 compliant, operating to -55°C ~ 105°C
4. A-DS 37 PP/Z (Assmann WSW Components) – Equivalent 37-position D-Sub plug, solder-terminated, RoHS3 compliant, operating to -20°C ~ 105°C, 3A rated
5. D37P24A4PL00LF (Amphenol ICC FCI) – Equivalent 37-position D-Sub plug, Delta D series, 5A rated, RoHS compliant, operating to -55°C ~ 125°C
6. D37P24B4GV00LF (Amphenol ICC FCI) – Equivalent 37-position D-Sub plug, Delta D series, 5A rated, RoHS3 compliant, operating to -55°C ~ 125°C

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

D37P24B4GV00LF (Amphenol ICC FCI, Delta D series) is the preferred substitute. This connector maintains identical electrical specifications (5A, 300V minimum), matches the mating-side female screwlock flange configuration, and achieves RoHS3 compliance. Operating temperature range extends to -55°C ~ 125°C, which covers the primary part's minimum threshold. Both parts feature gold-plated contacts and UL94 V-0 flammability rating. The Delta D series design ensures mechanical and electrical interchangeability.

D37P24A4PL00LF (Amphenol ICC FCI, Delta D series) provides equivalent performance with housing/shell (M3) flange mounting. This part maintains 5A current rating and RoHS compliance. Operating temperature range is -55°C ~ 125°C. Selection of this variant depends on flange mounting preference and application space constraints.

Secondary Substitutes (Acceptable with Application Review):

09654616713 (HARTING) offers enhanced current capacity (6.5A) and RoHS3 compliance. Operating temperature range is -55°C ~ 125°C. The mating-side female screwlock uses 4-40 threads instead of M3. This part is suitable for applications where higher current margin is beneficial and flange thread compatibility can be accommodated.

5745074-2 (TE Connectivity AMP, AMPLIMITE HD-20 series) provides 6A current rating and RoHS compliance. Operating temperature range is -55°C ~ 105°C, which does not extend to the primary part's 150°C maximum. This part is suitable for applications with maximum operating temperature of 105°C or lower. Voltage rating is 125V, which is lower than the primary part's 600V specification.

5786534-1 (TE Connectivity AMP, AMPLIMITE HD-20 series) features press-fit termination instead of solder. This part is suitable for applications where press-fit assembly is preferred. Operating temperature range is -55°C ~ 105°C. RoHS3 compliance is achieved. Housing/shell (4-40) flange mounting differs from the primary part's mating-side configuration.

Tertiary Substitute (Limited Application):

A-DS 37 PP/Z (Assmann WSW Components) is suitable only for applications with reduced current requirements (3A maximum). Operating temperature range is -20°C ~ 105°C, which does not meet the primary part's -55°C minimum or 150°C maximum specifications. Voltage rating is 250V, lower than the primary part's 600V. RoHS3 compliance is achieved. This part is appropriate for consumer-grade applications with relaxed thermal and electrical specifications.

Compliance Considerations:

The primary part L17HTNCGPOL2RM81C is RoHS non-compliant. Substitutes 09654616713, 5786534-1, A-DS 37 PP/Z, and D37P24B4GV00LF achieve RoHS3 compliance. Substitutes 5745074-2 and D37P24A4PL00LF achieve RoHS compliance. Selection of a compliant substitute is necessary for applications subject to RoHS regulations in the European Union or equivalent jurisdictions.

Frequently Asked Questions (FAQ)

Q: Can I substitute the L17HTNCGPOL2RM81C with a different D-Sub connector that has a different number of positions?

A: No. The 37-position configuration is a core mechanical and electrical specification. Substitutes must maintain exactly 37 positions in a 2-row layout with 4 (DC, C) shell size. Connectors with different position counts are not compatible.

Q: What is the difference between mating-side female screwlock (M3) and housing/shell (M3) flange features?

A: Mating-side female screwlock (M3) places the threaded receptacle on the connector's mating face, allowing the mating connector to secure directly to the plug. Housing/shell (M3) places the threaded hole on the connector's rear mounting surface, allowing the connector to be secured to a panel or backplate. These are different mounting configurations and require different mechanical interfaces.

Q: The substitute part has a lower voltage rating (125V or 250V) than the primary part (600V). Can I still use it?

A: Voltage rating substitution depends on application requirements. If your circuit operates at 125V or 250V, a substitute with that rating is acceptable. If your circuit requires 600V isolation or withstand capability, a substitute with lower voltage rating is not suitable. Verify the actual operating voltage and isolation requirements of your application before selecting a substitute.

Q: The substitute part has a lower current rating (3A) than the primary part (5A). Can I use it?

A: Current rating substitution depends on the actual current flowing through each contact in your application. If your application draws 3A or less per contact, a 3A-rated substitute is acceptable. If your application requires 5A per contact, a 3A-rated substitute will overheat and fail. Calculate the actual current per contact and select a substitute with equal or greater current rating.

Q: The substitute part operates to 105°C maximum, but the primary part operates to 150°C. Can I use the substitute?

A: Operating temperature range substitution depends on your application's actual thermal environment. If your application operates at 105°C or lower, a substitute with 105°C maximum rating is acceptable. If your application requires operation at temperatures above 105°C, a substitute with lower maximum temperature rating is not suitable. Verify the actual operating temperature range of your application before selecting a substitute.

Q: What is the difference between solder termination and press-fit termination?

A: Solder termination requires the connector pins to be soldered to printed circuit board traces or wire leads using heat and solder material. Press-fit termination uses mechanical force to insert the connector pins into plated holes on a printed circuit board, creating a gas-tight connection without solder. Press-fit termination is faster and does not expose components to soldering heat. Solder termination is more widely used in legacy designs. Both termination methods are mechanically and electrically equivalent for through-hole applications.

Q: Why does the primary part have RoHS non-compliant status while some substitutes are RoHS3 compliant?

A: RoHS (Restriction of Hazardous Substances) compliance indicates whether a part contains restricted materials such as lead, cadmium, or hexavalent chromium. The primary part L17HTNCGPOL2RM81C likely contains one or more restricted substances. Substitutes such as D37P24B4GV00LF have been manufactured to exclude these substances and achieve RoHS3 compliance. If your application is subject to RoHS regulations (European Union, California, or equivalent), select a RoHS-compliant substitute.

Q: Can I use a substitute with a different contact material (phosphor bronze instead of brass)?

A: Yes. Phosphor bronze and brass are both acceptable signal-grade contact materials for D-Sub connectors. Phosphor bronze offers slightly higher spring force and wear resistance compared to brass. Both materials provide equivalent electrical conductivity and signal integrity for this connector category. Contact material substitution does not affect mechanical or electrical compatibility.

Q: What does "flash" gold plating thickness mean?

A: Flash gold plating is a very thin layer of gold (typically 0.05 to 0.25 micrometers) applied over a nickel or copper underplate. Flash plating provides corrosion resistance and low contact resistance without the cost and weight of thicker gold plating. Flash gold is standard for signal-grade D-Sub connectors and is equivalent to non-flash gold for this application category.

Q: The substitute part is packaged in a tube instead of a tray. Does this affect compatibility?

A: No. Packaging format (tray, tube, or bulk) affects only storage, handling, and shipping. It does not affect the connector's mechanical or electrical performance. Select a substitute based on electrical and mechanical specifications, not packaging format.

Q: Can I mix and match substitute parts in the same application?

A: Yes, provided all selected parts meet the application's electrical and mechanical requirements. However, using identical part numbers throughout a design simplifies inventory management, troubleshooting, and future maintenance. If multiple substitute parts are used, document which part number is installed in each location.