L77SDA15SOL2G D-Sub 15 Position Receptacle Connector Equivalent & Substitute Parts

Part Overview

The L77SDA15SOL2G is a 15 position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This connector features female sockets with vertical through-hole solder termination and is classified as an active product. The connector is housed in a 2-row (DA, A) shell size configuration with tin-plated steel shell and gold-flashed phosphor bronze contacts. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across manufacturing environments where the primary part may be unavailable or where alternative specifications meet application requirements.

Key Parameters

Parameter	L77SDA15SOL2G Specification
Connector Type	Receptacle, Female Sockets
Number of Positions	15
Number of Rows	2
Shell Size, Connector Layout	2 (DA, A)
Mounting Type	Through Hole
Termination	Solder
Shell Material, Finish	Steel, Tin Plated
Contact Finish	Gold
Contact Finish Thickness	Flash
Current Rating (Amps)	3A
Voltage Rating	250V
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
Contact Material	Phosphor Bronze
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the L77SDA15SOL2G are qualified based on the following core parameters that determine functional and mechanical compatibility:

Critical Matching Parameters:

Connector Type: Receptacle, Female Sockets
Number of Positions: 15
Number of Rows: 2
Shell Size, Connector Layout: 2 (DA, A)
Mounting Type: Through Hole
Termination: Solder
Material Flammability Rating: UL94 V-0

Allowable Variation Parameters:

Current Rating: Substitute parts rated at 6A or 6.5A exceed the 3A requirement and are acceptable
Voltage Rating: Substitute parts rated at 125V are acceptable for applications requiring 250V operation (lower rating does not disqualify substitution if application voltage is within substitute rating)
Contact Finish Thickness: Flash or 30.0µin (0.76µm) are both acceptable gold finishes
Shell Material Finish: Steel with or without specified finish coating
Dielectric Material: Thermoplastic glass-filled, Polyester, Polybutylene Terephthalate (PBT), or Polycyclohexylenedimethylene Terephthalate (PCT) are acceptable
Contact Material: Phosphor Bronze or Copper Alloy are acceptable
Operating Temperature: -55°C ~ 105°C is acceptable for applications within this range; -55°C ~ 125°C provides extended capability
Flange Feature: Housing/Shell (Unthreaded), Housing/Shell (4-40), or Mating Side Female Screwlock (4-40) are acceptable based on application mounting requirements
Packaging: Tray, Tube, or Bulk packaging formats are acceptable

Substitute parts that maintain all critical matching parameters while operating within allowable variations are classified as direct substitutes.

Parameter Comparison

Parameter	L77SDA15SOL2G (Amphenol ICC)	09662117503 (HARTING)	09662556513 (HARTING)	5207827-3 (TE Connectivity)	5207827-4 (TE Connectivity)	5745057-3 (TE Connectivity)	5745057-4 (TE Connectivity)	5745077-3 (TE Connectivity)	5745077-4 (TE Connectivity)	5745077-6 (TE Connectivity)	745077-3 (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	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets
Number of Positions	15	15	15	15	15	15	15	15	15	15	15
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Shell Size, Connector Layout	2 (DA, A)	2 (DA, A)	2 (DA, A)	2 (DA, A)	2 (DA, A)	2 (DA, A)	2 (DA, A)	2 (DA, A)	2 (DA, A)	2 (DA, A)	2 (DA, A)
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
Current Rating (Amps)	3A	6.5A	6.5A	6A	6A	6A	6A	6A	6A	6A	6A
Voltage Rating	250V	Not Specified	Not Specified	125V	125V	125V	125V	125V	125V	125V	125V
Operating Temperature	-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	-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
Contact Material	Phosphor Bronze	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish	Gold	Not Specified	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness	Flash	Not Specified	Not Specified	Flash	30.0µin (0.76µm)	Flash	30.0µin (0.76µm)	Flash	30.0µin (0.76µm)	30.0µin (0.76µm)	Flash
Flange Feature	Housing/Shell (Unthreaded)	Mating Side, Female Screwlock (4-40)	Mating Side, Female Screwlock (4-40)	Housing/Shell (Unthreaded)	Housing/Shell (Unthreaded)	Housing/Shell (4-40)	Housing/Shell (4-40)	Mating Side, Female Screwlock (4-40)	Mating Side, Female Screwlock (4-40)	Mating Side, Female Screwlock (4-40)	Mating Side, Female Screwlock (4-40)
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 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 (RoHS Compliant):

The following parts are recommended as primary substitutes based on active product status and RoHS compliance alignment with the L77SDA15SOL2G:

5745077-4 (TE Connectivity AMPLIMITE HD-20): ROHS3 Compliant, 6A current rating, 125V voltage rating, 30.0µin gold contact finish, mating side female screwlock flange, polyester dielectric, phosphor bronze contacts, -55°C ~ 105°C operating temperature
5745077-6 (TE Connectivity AMPLIMITE HD-20): ROHS3 Compliant, 6A current rating, 125V voltage rating, 30.0µin gold contact finish, mating side female screwlock flange, polyester dielectric, phosphor bronze contacts, -55°C ~ 105°C operating temperature
09662117503 (HARTING): ROHS3 Compliant, 6.5A current rating, mating side female screwlock flange, polybutylene terephthalate dielectric, copper alloy contacts, -55°C ~ 125°C operating temperature
09662556513 (HARTING): ROHS3 Compliant, 6.5A current rating, board lock feature, mating side female screwlock flange, polycyclohexylenedimethylene terephthalate dielectric, copper alloy contacts, -55°C ~ 125°C operating temperature

Secondary Substitutes (RoHS Compliant):

5207827-3 (TE Connectivity AMPLIMITE HD-20): ROHS3 Compliant, 6A current rating, 125V voltage rating, flash gold contact finish, housing/shell unthreaded flange, polyester dielectric, phosphor bronze contacts, -55°C ~ 105°C operating temperature
5207827-4 (TE Connectivity AMPLIMITE HD-20): RoHS Compliant, 6A current rating, 125V voltage rating, 30.0µin gold contact finish, housing/shell unthreaded flange, polyester dielectric, phosphor bronze contacts, -55°C ~ 105°C operating temperature
5745057-3 (TE Connectivity AMPLIMITE HD-20): RoHS Compliant, 6A current rating, 125V voltage rating, flash gold contact finish, housing/shell 4-40 flange, polyester dielectric, phosphor bronze contacts, -55°C ~ 105°C operating temperature
5745057-4 (TE Connectivity AMPLIMITE HD-20): RoHS Compliant, 6A current rating, 125V voltage rating, 30.0µin gold contact finish, housing/shell 4-40 flange, polyester dielectric, phosphor bronze contacts, -55°C ~ 105°C operating temperature
5745077-3 (TE Connectivity AMPLIMITE HD-20): RoHS Compliant, 6A current rating, 125V voltage rating, flash gold contact finish, mating side female screwlock flange, polyester dielectric, phosphor bronze contacts, -55°C ~ 105°C operating temperature

Not Recommended:

745077-3 (TE Connectivity AMPLIMITE HD-20): RoHS non-compliant status disqualifies this part for applications requiring RoHS compliance

Voltage Rating Consideration:

Applications requiring 250V operation must use the L77SDA15SOL2G or equivalent parts rated at 250V. Substitute parts rated at 125V are not suitable for 250V applications. However, if the application operates at voltages within the 125V substitute rating, these parts are acceptable.

Operating Temperature Consideration:

Applications requiring operation at temperatures above 105°C must use the L77SDA15SOL2G (-55°C ~ 125°C) or HARTING parts 09662117503 and 09662556513 (-55°C ~ 125°C). TE Connectivity AMPLIMITE HD-20 series parts are limited to -55°C ~ 105°C.

Frequently Asked Questions (FAQ)

Q: Can I substitute a TE Connectivity 5745077-4 for the L77SDA15SOL2G in my design?

A: Yes, the 5745077-4 is a qualified substitute. Both parts share identical connector type (receptacle, female sockets), position count (15), row configuration (2), shell size (2 DA, A), mounting type (through hole), termination method (solder), and flammability rating (UL94 V-0). The 5745077-4 provides higher current capacity (6A vs. 3A) and maintains RoHS compliance. However, the 5745077-4 is rated for 125V operation, so it is not suitable if your application requires 250V. Additionally, the 5745077-4 operating temperature range is -55°C ~ 105°C, which is narrower than the L77SDA15SOL2G range of -55°C ~ 125°C.

Q: What is the difference between the HARTING 09662117503 and 09662556513?

A: Both HARTING parts are ROHS3 compliant 15-position D-Sub receptacles with identical core specifications. The primary difference is that the 09662556513 includes a board lock feature, which provides additional mechanical retention on the PCB. Both parts feature mating side female screwlock flanges and are rated for 6.5A current and -55°C ~ 125°C operating temperature. The 09662117503 uses polybutylene terephthalate (PBT) dielectric material, while the 09662556513 uses polycyclohexylenedimethylene terephthalate (PCT) dielectric material.

Q: Why do some substitute parts have lower voltage ratings than the L77SDA15SOL2G?

A: The L77SDA15SOL2G is rated for 250V operation, while most TE Connectivity AMPLIMITE HD-20 series substitutes are rated for 125V. This difference reflects the design specifications of each manufacturer's product line. For applications operating at voltages within the 125V substitute rating, these parts are functionally equivalent. For applications requiring 250V operation, only the L77SDA15SOL2G or equivalent 250V-rated parts are suitable.

Q: What does "flash" gold contact finish mean compared to 30.0µin (0.76µm)?

A: Both are gold plating finishes applied to the contact material. Flash gold is a very thin gold coating applied to improve contact reliability and corrosion resistance. The 30.0µin (0.76µm) specification indicates a measured gold plating thickness of 30 microinches or 0.76 micrometers. Both finishes are acceptable for D-Sub connector applications and provide equivalent contact performance. The specific thickness specification (30.0µin) provides additional process control documentation.

Q: Can I use a substitute part with a different flange feature?

A: Yes, substitute parts with different flange features are acceptable if your application mounting design accommodates the alternative flange type. The L77SDA15SOL2G features an unthreaded housing/shell flange. Substitute parts are available with housing/shell 4-40 flanges or mating side female screwlock 4-40 flanges. These alternative flange types provide different mounting and mating options. Verify that your PCB layout and mating connector design are compatible with the substitute part's flange configuration before implementation.

Q: Are all substitute parts available in the same packaging as the L77SDA15SOL2G?

A: No. The L77SDA15SOL2G is supplied in tray packaging. Substitute parts are available in different packaging formats: HARTING parts are supplied in bulk packaging, and TE Connectivity parts are supplied in tube packaging. Packaging format does not affect connector functionality or electrical performance. Select packaging based on your procurement and inventory management requirements.

Q: What is the significance of REACH status on these connectors?

A: REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) is a European Union regulation governing chemical substances. The L77SDA15SOL2G does not specify REACH status in the provided data. HARTING parts indicate REACH Unaffected status, meaning the regulation does not apply to these products. TE Connectivity parts indicate either REACH Affected or Vendor Undefined status. For applications subject to REACH compliance requirements, consult the manufacturer's documentation or contact the supplier for detailed REACH compliance information.

Q: Why is the 745077-3 not recommended as a substitute?

A: The 745077-3 is classified as RoHS non-compliant, while the L77SDA15SOL2G is RoHS Compliant. For applications requiring RoHS compliance (including most commercial and industrial electronics), the 745077-3 is not suitable. All other TE Connectivity AMPLIMITE HD-20 series parts (5207827, 5745057, and 5745077 variants) are RoHS Compliant or ROHS3 Compliant and are preferred substitutes.

Q: Can I mix substitute parts from different manufacturers in the same assembly?

A: Yes, substitute parts from different manufacturers (Amphenol ICC, HARTING, and TE Connectivity) can be used in the same assembly if they meet the application's electrical and mechanical requirements. However, verify that all parts meet your design specifications for voltage, current, temperature, and compliance requirements. Maintain consistent documentation of part numbers and manufacturers used in production to ensure traceability and support future maintenance or repair activities.

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