L177TSEG09SOL2 D-Sub Receptacle Connector – Equivalent & Substitute Parts

Part Overview

The L177TSEG09SOL2 is a 9-position D-Sub receptacle connector manufactured by Amphenol ICC for through-hole solder termination applications. This connector features female sockets in a DE/E shell size (Size 1) configuration with tin-plated steel housing and gold-plated contacts. The component is active in production and RoHS compliant. Finding equivalent and substitute parts is necessary to support design flexibility, supply chain continuity, and application-specific mounting and contact requirements across different manufacturing environments.

Key Parameters

Parameter	L177TSEG09SOL2 Specification
Connector Style	D-Sub
Connector Type	Receptacle, Female Sockets
Number of Positions	9
Number of Rows	2
Shell Size, Connector Layout	1 (DE, E)
Mounting Type	Through Hole
Termination	Solder
Shell Material, Finish	Steel, Tin Plated
Contact Finish	Gold
Current Rating (Amps)	5A
Voltage Rating	600V
Material Flammability Rating	UL94 V-0
Operating Temperature	-55°C ~ 125°C
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts are qualified as equivalent based on the following core parameters, all of which must align with the main part:

Connector Style & Type: D-Sub receptacle with female sockets (9-position, 2-row, Size 1 DE/E layout)
Termination Method: Solder connection
Flammability Compliance: UL94 V-0 rating
Contact Material: Copper Alloy or Brass composition
Mounting Configuration: Through-hole capability
Environmental Compliance: RoHS compliance or ROHS3 compliance; MSL 1 rating

Secondary parameters such as shell finish (tin-plated vs. nickel-plated), contact finish thickness, flange feature type (board-side vs. mating-side vs. housing-side), and panel mount capability do not disqualify substitution but define specific variant applications. Current rating, voltage rating, operating temperature range, and contact form (stamped vs. machined) represent performance and manufacturing differences that are acceptable for substitution provided the application requirements are met.

Parameter Comparison

Parameter	L177TSEG09SOL2 Amphenol	09641127235 HARTING	09661556513 HARTING	172-E09-213R001 NorComp	172-E09-213R021 NorComp	172-E09-213R031 NorComp	172-E09-213R911 NorComp	6-338313-2 TE Connectivity
Connector Type	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets
Number of Positions	9	9	9	9	9	9	9	9
Shell Size, Connector Layout	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)
Mounting Type	Through Hole	Through Hole	Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shell Material, Finish	Steel, Tin Plated	Steel, Tin Plated	Steel	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Tin Plated
Contact Finish	Gold	—	Gold	Gold	Gold	Gold	Gold	Gold
Current Rating (Amps)	5A	7.5A	6.5A	5A	5A	5A	5A	6A
Voltage Rating	600V	100V	—	—	—	—	—	—
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Operating Temperature	-55°C ~ 125°C	-20°C ~ 125°C	-55°C ~ 125°C	-50°C ~ 100°C	-50°C ~ 100°C	-50°C ~ 100°C	-50°C ~ 100°C	-55°C ~ 105°C
Contact Material	Copper Alloy	Copper Alloy	Copper Alloy	Brass	Brass	Brass	Brass	Phosphor Bronze
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Applicable	Not Applicable	Not Applicable	1 (Unlimited)

Engineering Selection Recommendations

All listed substitute parts maintain active product status and meet UL94 V-0 flammability compliance required for equivalent functionality.

Through-Hole Mounting Variants (Direct Form Factor Equivalents):

09641127235 (HARTING): Tin-plated steel shell with copper alloy contacts. Current rating of 7.5A exceeds the main part specification. Operates from -20°C, providing a more limited lower temperature range. ROHS3 compliant.
09661556513 (HARTING): Steel shell (unplated) with gold-plated copper alloy contacts and board lock feature. Current rating 6.5A. Maintains -55°C minimum temperature. ROHS3 compliant with board lock mechanical feature for enhanced retention.
6-338313-2 (TE Connectivity AMPLIMITE HD-20 series): Tin-plated steel shell with phosphor bronze contacts and gold plating. Current rating 6A and operating range -55°C to 105°C. RoHS compliant. TE Connectivity manufacturing.

Panel Mount Variants (Modified Form Factor):

172-E09-213R001, 172-E09-213R021, 172-E09-213R031, 172-E09-213R911 (NorComp 172-E series): Nickel-plated steel shells with brass contacts and gold flash finish. All variants support both through-hole and panel mount capability. Current rating 5A, operating range -50°C to 100°C. ROHS3 compliant. These variants differ in flange feature configuration (board-side vs. mating-side vs. housing-side vs. dual board/mating lock) to accommodate specific mechanical installation requirements.

Substitute selection depends on application requirements for operating temperature extremes, current capacity, panel mounting necessity, shell finish corrosion resistance, and mechanical locking features.

Frequently Asked Questions (FAQ)

Q: Can these substitute parts be used interchangeably with the L177TSEG09SOL2? A: Electrical and mechanical compatibility exists for all listed substitutes due to shared D-Sub Size 1 receptacle configuration, 9-position layout, solder termination, and UL94 V-0 compliance. Selection must account for application-specific operating temperature range, current requirements, and mounting method (through-hole only vs. panel mount capable).

Q: What is the difference between through-hole and panel mount variants? A: Through-hole mounting variants (HARTING and TE Connectivity models) are designed for printed circuit board edge insertion. Panel mount variants (NorComp 172-E series) include additional flange features for attachment to enclosure or panel surfaces alongside through-hole capability. Panel mount connectors occupy larger board space.

Q: Does the shell material finish affect substitutability? A: Shell finish (tin-plated vs. nickel-plated vs. bare steel) does not disqualify substitution but influences corrosion resistance in harsh environments. Tin-plated and nickel-plated finishes provide enhanced environmental protection compared to bare steel. Selection should align with application exposure conditions.

Q: Are there differences in contact materials between these parts? A: Contact materials include copper alloy, brass, and phosphor bronze—all acceptable for D-Sub receptacle applications. Gold plating on contacts provides corrosion resistance and low contact resistance. Gold finish thickness specifications vary; where not specified in certain models, flash plating is applied.

Q: What operating temperature range should I select? A: The main part (L177TSEG09SOL2) operates -55°C to 125°C. HARTING 09661556513 and TE Connectivity 6-338313-2 match this range. HARTING 09641127235 operates -20°C to 125°C (narrower low-temperature range). NorComp variants operate -50°C to 100°C (narrower overall range). Select based on application thermal requirements.

Q: What do the different flange features on NorComp variants indicate? A: Flange features define mechanical mounting orientation and locking mechanism. Housing/Shell flange (213R001) provides basic panel mounting. Board-side flange (213R021) mounts to PCB edges with 4-40 screw holes. Mating-side flange (213R031) incorporates female screwlock on connector face. Dual flange (213R911) provides both board-side and mating-side features with board lock capability for robust retention.

Q: Are all substitutes RoHS compliant? A: All listed substitutes are RoHS or ROHS3 compliant. ROHS3 represents extended RoHS compliance. The main part meets RoHS Compliance; HARTING and NorComp substitutes meet ROHS3 Compliance; TE Connectivity meets RoHS Compliance.

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