L77SDEG09SOL2 Equivalent & Substitute Parts

Part Overview

The L77SDEG09SOL2 is a 9-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This female sockets connector features vertical through-hole solder termination with a DE/E shell size (Size 1) and board-side M3 flange mounting. The connector is designed for signal applications with a 3A current rating and 250V voltage rating, operating across a temperature range of -55°C to 125°C. The part is currently active in production with RoHS compliance and unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified based on matching core electrical and mechanical parameters that ensure functional interchangeability within specified application constraints.

Key Parameters

Parameter	L77SDEG09SOL2 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
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
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the L77SDEG09SOL2 is determined by the following core parameters that must match or exceed the original specification:

Mandatory Matching Parameters:

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
Material Flammability Rating: UL94 V-0
Moisture Sensitivity Level: 1 (Unlimited)

Performance Parameters (Must Meet or Exceed):

Current Rating: Minimum 3A
Voltage Rating: Minimum 250V
Operating Temperature Range: Must encompass -55°C to 125°C

Acceptable Variations:

Flange Feature: Different mounting configurations (board-side, mating-side, housing-side) are acceptable if mechanical integration is compatible
Contact Finish: Gold or unspecified finishes are acceptable
Shell Material Finish: Steel with or without tin plating is acceptable
Contact Material: Phosphor Bronze or Copper Alloy are acceptable
Dielectric Material: Thermoplastic glass-filled, PBT, PCT, or Polyester materials are acceptable
Contact Form: Stamped or machined contacts are acceptable
Packaging: Tray, Tube, or Bulk packaging formats are acceptable

Substitute parts that do not meet the mandatory matching parameters or fall below the performance thresholds are not suitable for direct replacement.

Parameter Comparison

Parameter	L77SDEG09SOL2 (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

Tier 1 Substitutes (Full Compliance Match):

The following parts meet all mandatory matching parameters and maintain compliance certifications equivalent to or exceeding the L77SDEG09SOL2:

09661116503 (HARTING): Matches all mandatory parameters with operating temperature range of -55°C to 125°C. ROHS3 compliant. Current rating of 6.5A exceeds the 3A requirement. Suitable for applications requiring full temperature range coverage.
09661117503 (HARTING): Identical specifications to 09661116503. ROHS3 compliant. Interchangeable for equivalent performance.
09661556513 (HARTING): Matches all mandatory parameters with -55°C to 125°C operating range. ROHS3 compliant. Includes board lock feature and gold contact finish. Current rating of 6.5A exceeds requirement.
1-5747150-3 (TE Connectivity): Matches all mandatory parameters. ROHS3 compliant. Operating temperature -55°C to 105°C covers the lower end of the original range. Current rating 6A exceeds requirement. Voltage rating 125V is below the original 250V specification.
1-5747150-4 (TE Connectivity): Identical to 1-5747150-3 with RoHS compliant status. Operating temperature -55°C to 105°C. Current rating 6A exceeds requirement.
1-5747150-6 (TE Connectivity): Identical to 1-5747150-4. RoHS compliant. Suitable for applications not requiring the full 250V rating.

Tier 2 Substitutes (Conditional Compliance):

The following parts meet all mandatory matching parameters but have compliance or performance limitations:

1-338313-2 (TE Connectivity): Matches all mandatory parameters. ROHS3 compliant. Operating temperature range -55°C to 105°C does not extend to the full 125°C upper limit. Current rating 6A exceeds requirement. Voltage rating not specified. REACH status affected.
1-747150-4 (TE Connectivity): Matches all mandatory parameters. RoHS non-compliant status restricts use in regulated applications. Operating temperature -55°C to 105°C. Current rating 6A exceeds requirement. REACH affected status.

Tier 3 Substitutes (Limited Compatibility):

The following parts do not meet all mandatory matching parameters and are not suitable for direct replacement:

09641127230 (HARTING): Operating temperature range -20°C to 125°C does not meet the -55°C lower limit requirement. Voltage rating 100V is significantly below the 250V specification. Not suitable for applications requiring full temperature range or higher voltage ratings.
09641127235 (HARTING): Operating temperature range -20°C to 125°C does not meet the -55°C lower limit requirement. Voltage rating 100V is significantly below the 250V specification. Not suitable for applications requiring full temperature range or higher voltage ratings.

Compliance Considerations:

Applications requiring RoHS compliance should prioritize Tier 1 substitutes with ROHS3 compliant status. The part 1-747150-4 is RoHS non-compliant and should not be used in regulated environments. Applications requiring REACH compliance should avoid parts with REACH affected status (1-338313-2, 1-747150-4).

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that determine if a D-Sub 9-position receptacle can substitute for the L77SDEG09SOL2?

A: The connector must be a D-Sub receptacle with 9 positions in 2 rows, Size 1 (DE/E) shell layout, through-hole solder termination, and UL94 V-0 flammability rating. The current rating must be at least 3A, voltage rating at least 250V, and operating temperature range must encompass -55°C to 125°C. All substitute parts must maintain MSL 1 (Unlimited) moisture sensitivity level.

Q: Can I use a substitute part with a lower voltage rating than the original L77SDEG09SOL2?

A: No. The L77SDEG09SOL2 has a 250V voltage rating. Substitute parts with lower voltage ratings (such as 100V or 125V) do not meet the mandatory performance specification and are not suitable for direct replacement in applications requiring the full 250V rating.

Q: Are there differences in flange mounting configurations among the substitute parts?

A: Yes. The L77SDEG09SOL2 features a board-side M3 flange. Substitute parts include variations such as board-side 4-40 mounting, mating-side female screwlock 4-40, and housing-side unthreaded configurations. These different flange types may require mechanical integration adjustments but do not affect electrical compatibility if the connector is properly mounted to the PCB.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant status?

A: RoHS Compliant indicates compliance with the original Restriction of Hazardous Substances directive. ROHS3 Compliant indicates compliance with the updated RoHS 3 directive (2015/863/EU), which includes additional restricted substances. ROHS3 compliance is generally preferred for new designs and regulated applications. The part 1-747150-4 is RoHS non-compliant and should not be used in applications requiring RoHS certification.

Q: Can I substitute the L77SDEG09SOL2 with a part that has a lower operating temperature minimum?

A: No. The L77SDEG09SOL2 operates from -55°C to 125°C. Substitute parts with a minimum operating temperature of -20°C (such as HARTING 09641127230 and 09641127235) do not meet the full temperature range specification and are not suitable for applications requiring operation at temperatures below -20°C.

Q: What is the significance of contact finish (gold vs. unspecified)?

A: The L77SDEG09SOL2 features gold contact finish with flash thickness. Substitute parts with gold finish provide equivalent contact performance. Substitute parts with unspecified contact finish may have different contact material properties but are electrically compatible if the connector meets all other mandatory parameters. Contact finish does not affect substitution eligibility.

Q: Are there packaging format differences among the substitute parts?

A: Yes. The L77SDEG09SOL2 is supplied in Tray packaging. Substitute parts are available in Tray, Tube, or Bulk packaging formats. Packaging format does not affect electrical or mechanical compatibility and is a procurement consideration only.

Q: Which substitute parts are suitable for applications requiring the full -55°C to 125°C operating temperature range?

A: The HARTING parts 09661116503, 09661117503, and 09661556513 all support the full -55°C to 125°C operating temperature range. TE Connectivity parts (1-338313-2, 1-5747150-3, 1-5747150-4, 1-5747150-6, 1-747150-4) have a maximum operating temperature of 105°C and do not extend to 125°C.

Q: Can I use substitute parts with higher current ratings than the original L77SDEG09SOL2?

A: Yes. The L77SDEG09SOL2 has a 3A current rating. All listed substitute parts have current ratings of 6A or higher, which exceeds the original specification. Higher current ratings provide additional design margin and are acceptable for direct substitution.

Q: What is the difference between Phosphor Bronze and Copper Alloy contact materials?

A: The L77SDEG09SOL2 uses Phosphor Bronze contacts. Substitute parts use either Phosphor Bronze or Copper Alloy contacts. Both materials are acceptable for D-Sub signal connectors and do not affect substitution eligibility. Contact material does not impact electrical compatibility for signal applications.

Q: Are there any substitute parts that should be avoided?

A: Parts 09641127230 and 09641127235 (HARTING) should be avoided because they do not meet the -55°C lower temperature limit and have insufficient voltage rating (100V vs. 250V required). Part 1-747150-4 (TE Connectivity) is RoHS non-compliant and should not be used in regulated applications. These parts do not meet mandatory performance specifications.

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