L717DC37PC D-Sub 37-Position Right Angle Solder Plug Connector

Part Overview

The L717DC37PC is a 37-position D-Sub plug connector manufactured by Amphenol ICC (Commercial Products). This connector features a right-angle solder termination design with male pins, housed in a size 4 (DC, C) shell configuration. The connector is actively produced and maintains full stock availability with 975 pieces in inventory.

D-Sub connectors of this specification are essential for applications requiring robust signal transmission in industrial, telecommunications, and legacy computing environments. Substitute parts become necessary when original manufacturer availability is limited, when alternative sourcing reduces procurement costs, or when specific mechanical or electrical characteristics of alternative designs better suit application requirements.

Substiute Parts

L717DC37PC

Amphenol ICC (Commercial Products)In Stock: 1079L717DC37PC Datasheet

Current PartRFQ

173-E37-113R001

NorComp Inc.In Stock: 1071173-E37-113R001 Datasheet

SimilarRFQ

173-E37-113R141

NorComp Inc.In Stock: 994173-E37-113R141 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L717DC37PC is determined by strict alignment of the following critical parameters:

Core Compatibility Requirements:

• Connector type: D-Sub plug with male pins
• Position count: 37 positions
• Shell size: 4 (DC, C)
• Termination: Solder
• Mounting: Through hole, right angle orientation
• Contact material: Brass with gold finish
• Flammability: UL94 V-0

Acceptable Variation Parameters:

• Shell material finish (tin plated vs. nickel plated)
• Contact finish thickness (8.00µin vs. flash)
• Current rating (7.5A vs. 5A) — substitute acceptable at lower rating
• Voltage rating (300V vs. unspecified) — substitute acceptable at unspecified rating
• Operating temperature range (wider vs. narrower) — substitute acceptable within narrower range
• Backset spacing (0.319" vs. 0.283") — minor dimensional variation
• Flange feature configuration (unthreaded vs. screwlock)
• Color (black vs. white)

The two NorComp Inc. substitute parts (173-E37-113R001 and 173-E37-113R141) meet all core compatibility requirements and are classified as direct functional substitutes.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: L717DC37PC (Amphenol ICC)

Select the L717DC37PC when the application requires the full current rating of 7.5A, the extended operating temperature range of -55°C to 125°C, or the specified 300V voltage rating. This part maintains active production status with robust inventory levels (975 pieces). RoHS compliance is confirmed.

Substitute Selection: 173-E37-113R001 (NorComp Inc.)

The 173-E37-113R001 is suitable for applications where the 5A current rating is sufficient and operating temperatures remain within -50°C to 100°C. This substitute provides equivalent functional performance for signal-level applications with reduced current demands. ROHS3 compliance is confirmed. Inventory availability is strong (1007 pieces). The unthreaded flange configuration matches the primary part.

Substitute Selection: 173-E37-113R141 (NorComp Inc.)

The 173-E37-113R141 is functionally equivalent to 173-E37-113R001 with the addition of a female screwlock (4-40) mating side feature and mounting brackets. Select this variant when mechanical retention via screwlock is required or when panel-mount stability is a design consideration. Current and temperature ratings remain at 5A and -50°C to 100°C respectively. ROHS3 compliance is confirmed. Inventory availability is adequate (913 pieces).

Compliance Considerations:

All three parts maintain UL94 V-0 flammability certification and REACH unaffected status. The NorComp substitutes carry ROHS3 compliance, which supersedes the RoHS compliance of the primary part. No regulatory barriers exist for substitution.

Frequently Asked Questions (FAQ)

Q: Can 173-E37-113R001 or 173-E37-113R141 be used as direct replacements for L717DC37PC in all applications?

A: Direct replacement is possible only when the application current requirement does not exceed 5A and the operating temperature range remains within -50°C to 100°C. Applications requiring the full 7.5A rating or extended temperature range (-55°C to 125°C) must retain the L717DC37PC.

Q: What is the significance of the backset spacing difference (0.319" vs. 0.283")?

A: Backset spacing defines the distance from the mating face to the solder cup termination points. The 0.036" difference may affect PCB layout and component placement. Verify PCB design accommodates the NorComp spacing before substitution.

Q: Are there differences in shell material finish that affect performance?

A: The L717DC37PC uses tin plating while NorComp substitutes use nickel plating. Both finishes provide corrosion resistance and electrical conductivity. Nickel plating offers superior corrosion resistance in harsh environments. No functional performance difference exists for standard applications.

Q: What is the difference between 173-E37-113R001 and 173-E37-113R141?

A: The primary difference is the flange feature. The 173-E37-113R001 has an unthreaded housing/shell flange, while 173-E37-113R141 includes a female screwlock (4-40) mating side feature with mounting brackets. Select 173-E37-113R141 when mechanical retention or panel-mount stability is required.

Q: Do the NorComp parts support the same voltage rating as the L717DC37PC?

A: The NorComp substitutes do not specify a voltage rating in the provided data. The L717DC37PC specifies 300V. For applications requiring explicit voltage rating confirmation, contact the manufacturer or retain the L717DC37PC.

Q: Are all three parts available in the same packaging format?

A: Yes. All three parts are supplied in tray packaging, suitable for automated assembly and standard component handling.

Q: What is the contact finish thickness difference, and does it matter?

A: The L717DC37PC specifies 8.00µin (0.203µm) gold plating, while NorComp parts specify flash plating. Flash plating is a minimal thickness coating. For applications with high mating cycle counts or stringent contact resistance requirements, the thicker plating of the L717DC37PC may provide extended service life.