L17HTNCP4F1C D-Sub 37-Position Right Angle Solder Plug Connector

Part Overview

The L17HTNCP4F1C is a 37-position D-Sub plug connector manufactured by Amphenol ICC (Commercial Products) in the HTN series. This connector features male pins, right-angle through-hole mounting, and solder termination. The connector is actively produced and maintains full inventory availability with 1042 pieces in stock.

D-Sub connectors of this configuration are used in applications requiring standardized parallel signal transmission with mechanical robustness and established industry compatibility. Alternative equivalent parts become necessary when specific flange features, material compositions, operating temperature ranges, or current ratings differ from application requirements, or when supply chain considerations necessitate sourcing from alternative manufacturers.

Key Parameters

Parameter	L17HTNCP4F1C Specification
Connector Type	D-Sub Plug, Male Pins
Number of Positions	37
Shell Size / Layout	4 (DC, C)
Mounting Type	Through Hole, Right Angle
Termination Method	Solder
Flange Feature	Mating Side, Female Screwlock (4-40)
Current Rating	5A
Voltage Rating	600V
Operating Temperature Range	-55°C to 150°C
Shell Material / Finish	Steel, Tin-Nickel Plated
Contact Finish	Gold (Flash)
Backset Spacing	0.318" (8.08mm)
RoHS Status	RoHS Compliant
Material Flammability	UL94 V-0

Substitute Part Grouping Explanation

Substitution of the L17HTNCP4F1C is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Connector type: D-Sub plug with male pins
Number of positions: 37
Shell size and layout: 4 (DC, C)
Mounting type: Through hole, right angle
Termination method: Solder
Backset spacing: 0.318" (8.08mm)
Material flammability rating: UL94 V-0
Contact type: Signal

Allowable Variation Parameters:

Flange feature type (mating side screwlock vs. housing/shell threaded vs. housing/shell unthreaded)
Shell material finish (tin-nickel plated vs. nickel plated vs. unspecified)
Contact finish composition (gold vs. gold-palladium)
Contact finish thickness (flash vs. 30.0µin)
Current rating (5A to 6.5A range)
Operating temperature maximum (105°C to 150°C range)
Dielectric material composition (thermoplastic glass-filled vs. polybutylene terephthalate vs. polyamide)
Contact material (copper alloy vs. brass)
Packaging format (tray vs. bulk)

Substitute parts must maintain active product status and comply with RoHS or ROHS3 standards. Parts that deviate from mandatory parameters are not electrically or mechanically compatible and cannot serve as direct substitutes.

Parameter Comparison

Parameter	L17HTNCP4F1C	09684635812	09684637813	182-037-113R161	182-037-113R181	182-037-113R531	D37P33E4GV00LF	D37P33E4GX00LF
Manufacturer	Amphenol ICC	HARTING	HARTING	NorComp Inc.	NorComp Inc.	NorComp Inc.	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Connector Type	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins
Number of Positions	37	37	37	37	37	37	37	37
Shell Size / 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)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Flange Feature	Mating Side, Female Screwlock (4-40)	Housing/Shell (4-40)	Mating Side, Female Screwlock (4-40)	Housing/Shell (Unthreaded)	Mating Side, Female Screwlock (4-40)	Housing/Shell (4-40)	Mating Side, Female Screwlock (4-40)	Housing/Shell (4-40)
Current Rating (Amps)	5A	6.5A	6.5A	5A	5A	5A	5A per Contact	5A per Contact
Backset Spacing	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)
Operating Temperature Range	-55°C to 150°C	-55°C to 125°C	-55°C to 125°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 125°C	-55°C to 125°C
Shell Material / Finish	Steel, Tin-Nickel Plated	Steel	Steel	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Tin-Nickel Plated	Steel, Tin-Nickel Plated
Contact Finish	Gold (Flash)	Gold or Gold-Palladium	Not Specified	Gold (Flash)	Gold (Flash)	Gold (Flash)	Gold (Flash)	Gold (Flash)
Material Flammability	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant
Inventory (Pcs)	1042	1123	685	931	1198	5354	1096	1776

Engineering Selection Recommendations

All listed substitute parts maintain active product status and comply with applicable RoHS or ROHS3 standards, confirming their suitability for new designs and ongoing production applications.

For applications requiring maximum operating temperature of 150°C: The L17HTNCP4F1C and D37P33E4GV00LF and D37P33E4GX00LF are the only options that support the full -55°C to 150°C range. All NorComp 182 series parts and HARTING parts are limited to 105°C or 125°C maximum.

For applications with mating side female screwlock flange requirement: Compatible options include L17HTNCP4F1C, 09684637813, 182-037-113R181, D37P33E4GV00LF. These maintain the 4-40 threaded screwlock interface at the mating side.

For applications with housing/shell threaded flange requirement: Compatible options include 09684635812, 182-037-113R531, D37P33E4GX00LF. These feature 4-40 threaded holes in the housing/shell.

For applications with housing/shell unthreaded flange requirement: Only 182-037-113R161 provides this configuration.

For applications requiring higher current capacity: HARTING parts 09684635812 and 09684637813 support 6.5A rating, compared to 5A for all other options.

For supply chain flexibility with equivalent specifications: D37P33E4GX00LF offers the highest inventory availability at 1776 pieces, followed by 182-037-113R531 at 5354 pieces. Both maintain full compatibility with the L17HTNCP4F1C across all mandatory parameters.

Frequently Asked Questions (FAQ)

Q: Can I substitute the L17HTNCP4F1C with any 37-position D-Sub connector?

A: No. Substitution requires exact matching of mandatory parameters: 37 positions, shell size 4 (DC, C), through-hole right-angle mounting, solder termination, 0.318" backset spacing, and UL94 V-0 flammability rating. Deviations in these parameters result in mechanical or electrical incompatibility.

Q: What is the difference between mating side female screwlock and housing/shell threaded flanges?

A: Mating side female screwlock (4-40) places threaded holes on the connector's mating face, allowing screws to secure the mating connector directly. Housing/shell threaded (4-40) places threaded holes on the connector's shell body, typically used for panel mounting or bracket attachment. Housing/shell unthreaded provides no threaded mounting points. These are not interchangeable without redesigning the mechanical interface.

Q: Why do some substitute parts have lower maximum operating temperatures?

A: Operating temperature limits are determined by the dielectric material composition. The L17HTNCP4F1C uses thermoplastic glass-filled material rated to 150°C. NorComp 182 series parts use polyamide (PA9T) rated to 105°C. HARTING parts use polybutylene terephthalate (PBT) rated to 125°C. Selection must match application thermal requirements.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts comply with either RoHS or ROHS3 standards. The L17HTNCP4F1C and Amphenol ICC (FCI) parts carry RoHS Compliant status. HARTING and NorComp parts carry ROHS3 Compliant status. Both certifications are acceptable for current production applications.

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

A: The L17HTNCP4F1C specifies flash gold plating. HARTING part 09684635812 specifies 30.0µin (0.76µm) gold or gold-palladium. Flash plating is thinner than specified thickness plating. For applications with high-cycle mating or harsh environments, thicker plating may provide extended contact life, but both are electrically functional for signal transmission.

Q: Can I use a part with higher current rating as a substitute?

A: Yes, if all other mandatory parameters match. HARTING parts 09684635812 and 09684637813 support 6.5A compared to the L17HTNCP4F1C's 5A rating. Higher current capacity is a superset of lower requirements and does not create incompatibility. However, the application circuit design must be verified to ensure the higher rating does not introduce unintended behavior.

Q: What packaging differences exist between substitute options?

A: The L17HTNCP4F1C is supplied in tray packaging. HARTING parts are supplied in bulk packaging. NorComp and Amphenol ICC (FCI) parts are supplied in tray packaging. Packaging format does not affect electrical or mechanical compatibility; it only impacts receiving, storage, and handling procedures.

Q: Are there any compliance or certification differences I should consider?

A: All parts carry UL94 V-0 flammability certification and RoHS or ROHS3 compliance. HARTING and NorComp parts carry REACH Unaffected status. The L17HTNCP4F1C does not specify REACH status in the provided data. For applications requiring REACH compliance documentation, HARTING and NorComp parts provide explicit confirmation.

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