L77DFE09P1ACH3R D-Sub Plug Connector Equivalent & Substitute Parts

Part Overview

The L77DFE09P1ACH3R is a 9-position D-Sub plug connector manufactured by Amphenol ICC (Commercial Products). This connector features male pins, right-angle mounting configuration, and solder termination. The part is currently in active production status with 803 units in stock.

Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design requirements permit alternative connector configurations. The parts listed below maintain compatibility through matching electrical and mechanical parameters within the D-Sub connector category.

Substiute Parts

L77DFE09P1ACH3R

Amphenol ICC (Commercial Products)In Stock: 872L77DFE09P1ACH3R Datasheet

Current PartRFQ

172-009-102R031

NorComp Inc.In Stock: 3787172-009-102R031 Datasheet

SimilarRFQ

DEP09P065TXLF

Amphenol ICC (FCI)In Stock: 1633DEP09P065TXLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L77DFE09P1ACH3R is determined by the following mandatory parameters:

Core Compatibility Parameters:

• Connector style: D-Sub
• Connector type: Plug with male pins
• Position count: 9 positions
• Row configuration: 2 rows
• Shell size and layout: 1 (DE, E)
• Contact material: Brass
• Shell material and finish: Steel, tin plated
• Flammability rating: UL94 V-0
• RoHS compliance status

Electrical Parameters:

• Current rating: 7.5A minimum
• Voltage rating: 300V minimum
• Operating temperature range: -55°C to 155°C minimum

Termination Consideration: The main part uses solder termination with right-angle mounting. Substitute parts may employ solder cup termination with alternative mounting configurations (panel mount or free hanging) while maintaining the same connector interface and pin layout.

Parameter Comparison

Engineering Selection Recommendations

DEP09P065TXLF (Amphenol ICC FCI Series DP)

This part is suitable as a substitute when design requirements permit free-hanging (in-line) mounting instead of right-angle panel mount configuration. The DEP09P065TXLF maintains active product status, RoHS compliance, and exceeds the voltage rating specification (1000V versus 300V). Operating temperature range is -55°C to 125°C, which is 30°C lower than the main part. Current rating matches at 7.5A per contact. Contact finish includes GXT™ enhancement. This part is recommended for applications where higher voltage tolerance is beneficial and mounting configuration flexibility exists.

172-009-102R031 (NorComp Inc. M Series)

This part carries obsolete product status and should be selected only when existing inventory must be maintained or when legacy system compatibility is required. The current rating is reduced to 5A, which falls below the main part specification. Operating temperature range is limited to -50°C to 100°C. RoHS3 compliance is confirmed. Wire gauge specification (20-26 AWG) is provided for this part. Panel mount configuration is available. This part is not recommended for new designs due to obsolete status and reduced electrical ratings.

Frequently Asked Questions (FAQ)

Q: Can DEP09P065TXLF replace L77DFE09P1ACH3R in all applications?

A: DEP09P065TXLF maintains electrical compatibility (9-position, male pins, 7.5A current rating, UL94 V-0 flammability). However, mounting configuration differs: DEP09P065TXLF uses free-hanging (in-line) termination while L77DFE09P1ACH3R uses right-angle panel mount. Substitution is valid only when the application permits in-line mounting or when the connector is used in a cable assembly context.

Q: Why is 172-009-102R031 listed as a substitute if it is obsolete?

A: The part is included in the substitute list because it maintains the same 9-position D-Sub connector interface and shell size. However, obsolete status indicates this part is no longer in active production. Selection of this part should be limited to applications requiring compatibility with existing legacy systems or when current inventory must be consumed.

Q: What is the impact of the 5A current rating on 172-009-102R031?

A: The 5A rating is 2.5A lower than the L77DFE09P1ACH3R specification of 7.5A. Applications requiring the full 7.5A current capacity cannot use 172-009-102R031. This part is suitable only for applications with current requirements at or below 5A.

Q: Are there temperature range limitations when substituting?

A: Yes. The L77DFE09P1ACH3R operates from -55°C to 155°C. DEP09P065TXLF operates to 125°C maximum (30°C lower upper limit). 172-009-102R031 operates to 100°C maximum (55°C lower upper limit). Substitution is valid only when the application's maximum operating temperature does not exceed the substitute part's upper limit.

Q: What packaging differences exist between these parts?

A: L77DFE09P1ACH3R packaging is not specified. DEP09P065TXLF is supplied in bulk packaging. 172-009-102R031 is supplied in tray packaging. Packaging format may affect procurement, handling, and inventory management but does not affect electrical or mechanical compatibility.

Q: Is the contact finish difference significant?

A: L77DFE09P1ACH3R uses gold plating at 20.0µin (0.51µm) thickness. DEP09P065TXLF uses gold with GXT™ enhancement at 30.0µin (0.76µm) thickness, providing greater corrosion resistance. 172-009-102R031 uses flash gold plating. All three finishes are compatible for signal-level applications. GXT™ enhancement on DEP09P065TXLF provides additional protection in harsh environments.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Interchangeability depends on the PCB footprint and mounting method. L77DFE09P1ACH3R uses right-angle through-hole panel mount, requiring specific PCB layout. DEP09P065TXLF uses free-hanging configuration suitable for cable assembly. 172-009-102R031 uses panel mount but with different flange features (mating side 4-40 versus unthreaded housing). PCB redesign may be necessary when substituting between these parts.