L77DEG09SV D-Sub Receptacle 9 Position Connector

Part Overview

The L77DEG09SV is a 9 Position D-Sub Receptacle with female sockets manufactured by Amphenol ICC for through-hole solder termination. This connector operates at 300V with a current rating of 7.5A and supports operating temperatures from -55°C to 125°C. The part is currently active in production and features a tin-plated steel shell with gold-plated contacts (8.00µin thickness).

Alternative models are necessary when specific flange configurations, dielectric materials, current ratings, or voltage requirements differ from the original specification, or when sourcing constraints require selection from available inventory across multiple manufacturers.

Key Parameters

Parameter	L77DEG09SV (Main Part)
Manufacturer Part Number	L77DEG09SV
Manufacturer	Amphenol ICC
Connector Type	Receptacle, Female Sockets
Number of Positions	9
Shell Size / Layout	1 (DE, E)
Mounting Type	Through Hole
Termination	Solder
Flange Feature	Board Side (M3)
Shell Material / Finish	Steel, Tin Plated
Contact Finish	Gold (8.00µin)
Current Rating	7.5A
Voltage Rating	300V
Operating Temperature Range	-55°C to 125°C
Contact Material	Brass
Dielectric Material	Thermoplastic, Glass Filled
Product Status	Active
RoHS Compliance	RoHS Compliant
Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitute parts for the L77DEG09SV are categorized based on the following allowable parameters for D-Sub Receptacle 9 Position connectors:

Primary compatibility factors:

Connector type must be Receptacle, Female Sockets
Number of positions must remain 9
Shell size and layout must be 1 (DE, E)
Mounting type must be Through Hole
Termination must be Solder
Flammability rating must be UL94 V-0

Parameters with acceptable variations:

Current rating: 5A to 7.5A (parts rated 5A or 6.5A are acceptable for applications requiring ≤5A or ≤6.5A respectively)
Voltage rating: 100V minimum (parts with lower voltage ratings are substitutable in lower-voltage applications; L77DEG09SV's 300V rating supports all substitute applications)
Operating temperature range: -55°C to 125°C (overlapping ranges are acceptable for specific application temperature windows)
Flange feature configuration: Board side, Housing/Shell, or Mating side variations accommodate different mechanical mounting requirements
Contact finish: Gold or unspecified finishes are acceptable
Shell material: Steel with various platings (Tin, Nickel, or no plating specified)
Contact material: Brass or Copper Alloy (both acceptable)
Dielectric material: Thermoplastic variations acceptable (Polycyclohexylenedimethylene Terephthalate, Polybutylene Terephthalate, Polyamide, or Polyester formulations)

The following substitute parts meet these criteria:

HARTING Series (09641127230, 09641127235, 09661116503, 09661117503, 09661556513) – Standard through-hole 9-position D-Sub receptacles with compatible flange options and material compositions.

NorComp 172 Series (172-009-212R021, 172-E09-213R001, 172-E09-213R021, 172-E09-213R911) – Panel mount through-hole variants with compatible electrical specifications.

TE Connectivity AMPLIMITE HD-20 Series (2-338313-2) – Through-hole receptacle with board lock feature and compatible electrical parameters.

Parameter Comparison

Parameter	L77DEG09SV	09641127230	09641127235	09661116503	09661117503	09661556513	172-009-212R021	172-E09-213R001	172-E09-213R021	172-E09-213R911	2-338313-2
Connector Type	Receptacle, Female	Receptacle, Female	Receptacle, Female	Receptacle, Female	Receptacle, Female	Receptacle, Female	Receptacle, Female	Receptacle, Female	Receptacle, Female	Receptacle, Female	Receptacle, Female
Number of Positions	9	9	9	9	9	9	9	9	9	9	9
Shell Size / 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	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	Solder	Solder	Solder
Flange Feature	Board Side (M3)	Housing/Shell	Board Side (4-40)	Mating Side, Screwlock (4-40)	Mating Side, Screwlock (4-40)	Mating Side, Screwlock (4-40)	Board Side (4-40)	Housing/Shell	Board Side (4-40)	Board Side / Mating Side, Screwlock (4-40)	Housing/Shell (M3)
Shell Material / Finish	Steel, Tin Plated	Steel	Steel, Tin Plated	Steel	Steel	Steel	Steel, Tin Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Tin Plated
Contact Finish	Gold (8.00µin)	Not Specified	Not Specified	Not Specified	Not Specified	Gold	Gold (Flash)	Gold (Flash)	Gold (Flash)	Gold (Flash)	Gold
Current Rating	7.5A	7.5A	7.5A	6.5A	6.5A	6.5A	5A	5A	5A	5A	6A
Voltage Rating	300V	100V	100V	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified
Operating Temperature	-55°C to 125°C	-20°C to 125°C	-20°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-50°C to 100°C	-50°C to 100°C	-50°C to 100°C	-50°C to 100°C	-55°C to 105°C
Contact Material	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Brass	Brass	Brass	Brass	Phosphor Bronze
Dielectric Material	Thermoplastic, Glass Filled	Polycyclohexylenedimethylene Terephthalate (PCT)	Polycyclohexylenedimethylene Terephthalate (PCT)	Polybutylene Terephthalate (PBT), Polyester, Glass Filled	Polybutylene Terephthalate (PBT), Polyester, Glass Filled	Polycyclohexylenedimethylene Terephthalate (PCT), Glass Filled	Polybutylene Terephthalate (PBT), Polyester	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T	Polyester, Glass Filled
Product Status	Active	Active	Active	Active	Active	Active	Obsolete	Active	Active	Active	Active
RoHS Compliance	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
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

Engineering Selection Recommendations

Primary Selection (Direct Replacement): The 09641127235 (HARTING) provides electrical equivalence with board-side 4-40 mounting, matching the through-hole solder termination and 7.5A current rating. This part maintains active production status and ROHS3 compliance, supporting applications requiring the full electrical specifications of the L77DEG09SV.

Recommended Alternatives for Equivalent Performance:

2-338313-2 (TE Connectivity AMPLIMITE HD-20) – Active status with board lock feature, 6A rating, and M3 flange matching the original design. Operating temperature extends to 105°C, suitable for applications within -55°C to 105°C range. ROHS3 compliant.
09661556513 (HARTING) – 6.5A current rating with mating-side female screwlock and gold contact finish. Supports full temperature range (-55°C to 125°C). ROHS3 compliant, active production status.

Suitable Replacements for Reduced Electrical Specifications:

09641127230 (HARTING) – 7.5A rating with housing/shell flange. Acceptable for applications ≤100V. Note: reduced lower temperature limit (-20°C minimum).
172-E09-213R021 (NorComp) – Panel mount configuration with 5A rating and nickel-plated steel shell. Suitable for applications ≤5A and temperatures limited to -50°C to 100°C. Active status, ROHS3 compliant.

Not Recommended:

The 172-009-212R021 (NorComp) carries obsolete product status and should not be selected for new designs or long-term production requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute any listed part for the L77DEG09SV directly?

A: Direct substitution requires compatibility across all critical parameters. The 09641127235 provides the closest match with equivalent 7.5A current rating and board-side flange. Other parts may require electrical specification verification (voltage rating, current rating, temperature range) for your specific application.

Q: What is the difference between parts with different flange features (Board Side, Housing/Shell, Mating Side)?

A: Flange feature determines mechanical mounting configuration. Board Side (M3 or 4-40) bolts to the circuit board. Housing/Shell (Unthreaded) relies on connector shell alignment. Mating Side screwlock secures at the mating interface. Selection depends on your physical mounting method and enclosure design.

Q: Do the HARTING parts with no specified contact finish work the same as the gold-plated L77DEG09SV?

A: Contact finish (gold plating) enhances corrosion resistance and contact reliability, particularly in harsh environments. Parts with unspecified contact finish meet basic electrical requirements but may not offer equivalent environmental protection. Gold-plated alternatives (09661556513) are recommended for demanding applications.

Q: Can I use a part rated at 5A or 6A in place of the 7.5A L77DEG09SV?

A: Substitution with lower current-rated parts is acceptable only if your application current draw does not exceed the substitute part's rating. For applications requiring ≤5A, the 172-E09-213R021 is suitable. For applications ≤6A, the 2-338313-2 is acceptable. The original 7.5A rating must not be exceeded with lower-rated substitutes.

Q: What is the difference between operating temperature ranges shown?

A: The L77DEG09SV operates -55°C to 125°C. Substitute parts have varying ranges. The HARTING 09661556513 matches this full range. The 09641127230 and 09641127235 are limited to -20°C minimum, unsuitable for applications below -20°C. NorComp parts are limited to -50°C to 100°C. Select substitutes based on your application's actual temperature extremes.

Q: How does the mounting type (Through Hole vs. Panel Mount) affect substitution?

A: The L77DEG09SV is Through Hole (vertical solder on PCB). Panel mount variants (NorComp 172-E series) have additional flange extensions for panel cutout mounting. Through Hole parts are not interchangeable with Panel Mount parts without mechanical redesign. For drop-in replacement, select only Through Hole variants (HARTING or TE Connectivity parts).

Q: Are all listed substitutes RoHS compliant?

A: All listed substitute parts are ROHS3 compliant (or RoHS Compliant for the main part). The 09661116503 and 09661117503 carry ROHS3 certification with REACH Unaffected status. All parts support modern electronics regulations without compatibility concerns regarding hazardous substance restrictions.

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