Amphenol ICC L777SDEG09P D-Sub 9-Position Plug Connector: Equivalent & Substitute Parts

Part Overview

The Amphenol ICC L777SDEG09P is a 9-position D-Sub plug connector with male pins, designed for solder cup termination in free-hanging (in-line) applications. This connector features a DE/E shell size (Size 1) with tin-plated steel shell and gold-plated contacts. The product is currently active in production with 812 units in stock.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative mounting configurations are required, or when design specifications allow for compatible connector variants. The substitute parts listed maintain core electrical and mechanical compatibility while offering different mounting types and shell finishes.

Substiute Parts

L777SDEG09P

Amphenol ICC (Commercial Products)In Stock: 910L777SDEG09P Datasheet

Current PartRFQ

171-009-102L001

NorComp Inc.In Stock: 1366171-009-102L001 Datasheet

SimilarRFQ

171-009-103L001

NorComp Inc.In Stock: 1288171-009-103L001 Datasheet

SimilarRFQ

171-009-103L011

NorComp Inc.In Stock: 1289171-009-103L011 Datasheet

SimilarRFQ

171-009-103L021

NorComp Inc.In Stock: 3649171-009-103L021 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L777SDEG09P is determined by the following critical parameters:

Core Compatibility Requirements:

• Connector style: D-Sub
• Connector type: Plug with male pins
• Number of positions: 9
• Number of rows: 2
• Shell size and layout: 1 (DE, E)
• Contact type: Signal
• Termination method: Solder cup
• Flammability rating: UL94 V-0
• Material compliance: RoHS compliant or ROHS3 compliant

Parameters Allowing Variation:

• Mounting type (free hanging vs. panel mount)
• Shell material finish (tin plated vs. nickel plated)
• Flange feature configuration (cable side vs. housing/shell)
• Current rating (3A vs. 5A, where higher rating is acceptable)
• Operating temperature range (provided minimum and maximum are within or exceed original specifications)
• Contact finish thickness (flash vs. 15.0µin)

The four substitute parts listed (171-009-102L001, 171-009-103L001, 171-009-103L011, 171-009-103L021) all maintain the core D-Sub 9-position plug configuration with solder cup termination and UL94 V-0 rating. Primary differences exist in mounting type (panel mount vs. free hanging) and shell finish specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Active Status): The 171-009-103L021 and 171-009-103L011 are recommended as primary substitutes. Both parts maintain active product status with ROHS3 compliance certification. The 171-009-103L021 offers the highest inventory availability (3571 units) and cable-side flange configuration with 4-40 mounting. These parts provide higher current rating (5A vs. 3A) and nickel-plated shell finish, which extends corrosion resistance in certain environments.

Secondary Substitute (Active Status): The 171-009-103L001 is an active product with ROHS3 compliance and 1274 units in stock. This part features housing/shell unthreaded flange configuration and is suitable for applications where panel mounting is acceptable.

Avoid: The 171-009-102L001 carries obsolete product status and should not be selected for new designs or long-term production applications, despite ROHS3 compliance and adequate inventory levels.

Mounting Type Consideration: All NorComp substitutes feature panel mount configuration, whereas the original L777SDEG09P is free-hanging (in-line). Design integration must accommodate this difference. Panel mount variants require through-hole or surface mounting to a panel, whereas free-hanging connectors attach directly to cable assemblies.

Temperature Range Limitation: NorComp substitutes operate within -50°C to 100°C, which is narrower than the L777SDEG09P range of -55°C to 125°C. Applications requiring the full -55°C to 125°C range must retain the original Amphenol ICC part.

Frequently Asked Questions (FAQ)

Q: Can the NorComp 171-009-103L021 directly replace the Amphenol ICC L777SDEG09P in existing assemblies?

A: Direct replacement depends on mounting configuration. The L777SDEG09P is free-hanging (in-line), while the 171-009-103L021 is panel mount. Electrical compatibility is confirmed (9-position D-Sub plug, solder cup termination, gold contacts, UL94 V-0). Physical integration requires panel mounting capability. If the application currently uses free-hanging connectors, mechanical redesign is necessary.

Q: What is the significance of the current rating difference (3A vs. 5A)?

A: The L777SDEG09P is rated for 3A maximum current per contact. NorComp substitutes are rated for 5A. A higher current rating on the substitute part does not create compatibility issues; it indicates the substitute can handle equal or greater current loads. Applications operating at or below 3A per contact are fully compatible with 5A-rated substitutes.

Q: Are there temperature range limitations when substituting?

A: Yes. The L777SDEG09P operates from -55°C to 125°C. All NorComp substitutes operate from -50°C to 100°C. Applications requiring operation below -50°C or above 100°C must use the original Amphenol ICC part. Applications within the -50°C to 100°C window are compatible with substitutes.

Q: What is the difference between tin-plated and nickel-plated shell finishes?

A: The L777SDEG09P features tin-plated steel shell. NorComp substitutes feature nickel-plated steel shell. Both finishes provide corrosion resistance. Nickel plating offers enhanced durability in harsh environments and higher temperature stability. Tin plating is suitable for standard industrial applications. Selection depends on environmental exposure requirements.

Q: Why is the 171-009-102L001 listed as obsolete?

A: The 171-009-102L001 carries obsolete product status, indicating NorComp has discontinued active production and support. While 1301 units remain in stock, this part should not be selected for new designs or applications requiring long-term component availability and manufacturer support.

Q: What does the flange feature designation mean (Cable Side M3 vs. Housing/Shell Unthreaded vs. Cable Side 4-40)?

A: Flange feature describes the mounting interface. Cable Side (M3) indicates M3 metric threaded mounting on the cable-side flange. Housing/Shell (Unthreaded) indicates the flange mounts to a panel without threaded fasteners. Cable Side (4-40) indicates 4-40 UNC threaded mounting on the cable-side flange. Selection depends on the mechanical mounting structure of the application.

Q: Are all substitute parts RoHS compliant?

A: Yes. The original L777SDEG09P is RoHS Compliant. All four substitute parts carry ROHS3 Compliant certification, which represents the current RoHS directive revision. ROHS3 compliance includes all RoHS requirements and is fully compatible with RoHS-compliant applications.

Q: Can I use a substitute part if my application requires the full -55°C to 125°C operating range?

A: No. All NorComp substitutes are rated for -50°C to 100°C operation. If your application requires operation at -55°C or below, or at 125°C or above, the original Amphenol ICC L777SDEG09P must be used. Substitutes are not suitable for extended temperature range applications.