L77SDEG09SOL2C309 D-Sub 9-Position Receptacle Equivalent & Substitute Parts

Part Overview

The L77SDEG09SOL2C309 is a 9-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This through-hole solder-terminated connector features female sockets in a DE/E shell size configuration with board-side M3 flange mounting. The connector is actively produced and maintains RoHS compliance with UL94 V-0 flammability rating.

Equivalent and substitute parts are identified when alternative D-Sub 9-position receptacle connectors share the same core electrical and mechanical specifications: 9 positions, 2-row configuration, DE/E shell size, through-hole mounting, solder termination, and signal contact type. Substitutes accommodate variations in flange design, contact finish specifications, and manufacturer-specific feature implementations while maintaining functional compatibility within the specified electrical parameters.

Key Parameters

Parameter	L77SDEG09SOL2C309
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
Contact Type	Signal
Current Rating (Amps)	3A
Voltage Rating	250V
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution logic for D-Sub 9-position receptacle connectors is determined by the following mandatory parameters:

Core Compatibility Parameters:

Connector style (D-Sub)
Connector type (Receptacle, Female Sockets)
Number of positions (9)
Number of rows (2)
Shell size and layout (DE/E)
Mounting type (Through Hole)
Termination method (Solder)
Contact type (Signal)

Electrical Compatibility Parameters:

Current rating must equal or exceed the application requirement
Voltage rating must equal or exceed the application requirement
Operating temperature range must encompass the application environment

Mechanical Compatibility Parameters:

Flange feature design (board-side, housing-side, or mating-side configurations are functionally equivalent for through-hole mounting)
Contact form (stamped or machined contacts are functionally equivalent)
Shell material and finish variations (steel with tin plate or unplated steel are functionally equivalent)

Substitute parts identified in this reference maintain all core compatibility parameters. Variations in flange design, contact finish thickness, dielectric material composition, and manufacturer-specific features do not affect functional substitution when electrical and mechanical mounting requirements are satisfied.

Parameter Comparison

Parameter	L77SDEG09SOL2C309 (Amphenol ICC)	09641127230 (HARTING)	09641127235 (HARTING)	09661116503 (HARTING)	09661117503 (HARTING)	09661556513 (HARTING)	1-338313-2 (TE Connectivity)	1-5747150-3 (TE Connectivity)	1-5747150-4 (TE Connectivity)	1-5747150-6 (TE Connectivity)	1-747150-4 (TE Connectivity)
Connector Style	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub
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	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets
Number of Positions	9	9	9	9	9	9	9	9	9	9	9
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
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)	1 (DE, E)	1 (DE, E)	1 (DE, E)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Type	Signal	Signal	Signal	Signal	Signal	Signal	Signal	Signal	Signal	Signal	Signal
Current Rating (Amps)	3A	7.5A	7.5A	6.5A	6.5A	6.5A	6A	6A	6A	6A	6A
Voltage Rating	250V	100V	100V	Not Specified	Not Specified	Not Specified	Not Specified	125V	125V	125V	125V
Operating Temperature	-55°C ~ 125°C	-20°C ~ 125°C	-20°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
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	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (Full Compliance):

The following parts maintain full compatibility with L77SDEG09SOL2C309 specifications and are recommended for direct substitution:

HARTING 09661116503 and 09661117503 provide equivalent electrical performance with operating temperature range matching the original part (-55°C ~ 125°C). Both maintain UL94 V-0 flammability rating and ROHS3 compliance. Current rating of 6.5A exceeds the 3A requirement. Mating-side female screwlock flange design accommodates standard D-Sub connector mating practices.

TE Connectivity 1-5747150-4 and 1-5747150-6 offer direct functional equivalence with RoHS compliance, 6A current rating, and 125V voltage rating. Operating temperature range extends to 105°C, which encompasses the -55°C to 125°C requirement of the original part. Mating-side female screwlock configuration provides standard D-Sub connector interface.

Secondary Substitutes (Conditional Compliance):

HARTING 09641127235 provides higher current capacity (7.5A) and ROHS3 compliance but operates at reduced temperature minimum (-20°C vs. -55°C) and lower voltage rating (100V vs. 250V). This part is suitable for applications not requiring the full -55°C lower temperature limit or 250V voltage specification.

TE Connectivity 1-338313-2 (AMPLIMITE HDP-20 series) operates at reduced upper temperature limit (105°C vs. 125°C) and carries REACH Affected status. This part is suitable for applications within the -55°C to 105°C temperature window.

TE Connectivity 1-747150-4 is RoHS non-compliant and carries REACH Affected status. This part is not recommended for new designs requiring RoHS compliance.

Inventory Availability:

TE Connectivity 1-5747150-3 maintains the highest inventory level (7,581 pcs) among substitute options, followed by HARTING 09661556513 (1,873 pcs) and TE Connectivity 1-338313-2 (2,800 pcs).

Frequently Asked Questions (FAQ)

Q: Can HARTING 09641127230 substitute for L77SDEG09SOL2C309?

A: HARTING 09641127230 shares all core mechanical and electrical compatibility parameters (9-position, DE/E shell, through-hole solder termination). However, it operates at reduced temperature minimum (-20°C vs. -55°C) and lower voltage rating (100V vs. 250V). Substitution is valid only for applications not requiring the full -55°C lower temperature limit or 250V voltage specification.

Q: What is the difference between board-side and mating-side flange configurations?

A: Board-side flange (M3 or 4-40 threaded) mounts directly to the PCB with fasteners. Mating-side female screwlock flange accommodates standard D-Sub connector mating with integrated locking mechanism. Both configurations are mechanically compatible for through-hole solder termination and do not affect electrical performance.

Q: Are stamped and machined contact forms functionally equivalent?

A: Yes. Stamped contacts (L77SDEG09SOL2C309, HARTING 09661116503, 09661117503) and machined contacts (HARTING 09641127230, 09641127235) provide equivalent electrical performance in D-Sub 9-position receptacle applications. Contact form selection does not affect substitution compatibility.

Q: Does contact finish thickness affect substitution compatibility?

A: Contact finish thickness variations (30.0µin/0.76µm, flash, or unspecified) do not affect functional substitution. All substitute parts maintain gold or equivalent contact finish specifications suitable for signal transmission in D-Sub receptacle applications.

Q: Which substitute parts maintain full RoHS compliance?

A: HARTING 09641127230, 09641127235, 09661116503, 09661117503, and 09661556513 carry ROHS3 Compliant status. TE Connectivity 1-338313-2, 1-5747150-3, 1-5747150-4, and 1-5747150-6 carry ROHS3 Compliant or RoHS Compliant status. TE Connectivity 1-747150-4 is RoHS non-compliant and is not suitable for applications requiring RoHS compliance.

Q: What is the significance of REACH status in connector selection?

A: REACH Affected status indicates the part may contain substances of concern under EU REACH regulations. REACH Unaffected status confirms compliance with REACH requirements. TE Connectivity 1-338313-2 carries REACH Affected status; 1-747150-4 carries REACH Affected status. HARTING parts carry REACH Unaffected status. TE Connectivity 1-5747150-3, 1-5747150-4, and 1-5747150-6 carry Vendor Undefined status.

Q: Can I use a substitute part with higher current rating in a 3A application?

A: Yes. All substitute parts with current ratings of 6A or higher (HARTING 09641127235 at 7.5A, HARTING 09661116503/09661117503 at 6.5A, TE Connectivity parts at 6A) are electrically compatible with 3A applications. Higher current rating provides design margin and does not affect performance in lower-current applications.

Q: Are there packaging differences between substitute parts?

A: Yes. L77SDEG09SOL2C309 is supplied in Tray packaging. HARTING substitutes are supplied in Bulk packaging. TE Connectivity 1-338313-2 is supplied in Tray packaging; 1-5747150-3, 1-5747150-4, and 1-5747150-6 are supplied in Tube packaging; 1-747150-4 is supplied in Bulk packaging. Packaging differences do not affect connector functionality but may impact procurement and handling procedures.

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