Amphenol ICC L77DAF15SU D-Sub 15 Position Receptacle Connector – Equivalent & Substitute Parts

Part Overview

The L77DAF15SU is a 15 Position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products) with vertical through-hole mounting. This connector features female sockets with solder termination, tin-plated steel shell, and gold-plated contacts rated for 7.5A at 300V, suitable for applications requiring robust signal connectivity with UL94 V-0 flammability compliance.

The connector is currently in active production status. Alternative models become necessary when addressing specific mounting configurations (panel mount versus through-hole), shell material preferences (nickel versus tin plating), flange options (threaded versus unthreaded), or thermal operating range requirements that exceed the primary part's specifications.

Key Parameters

Parameter	L77DAF15SU Specification
Connector Type	D-Sub Receptacle, Female Sockets
Position Count	15 Positions, 2 Rows
Shell Size	Size 2 (DA, A)
Mounting Type	Through Hole, Vertical
Termination	Solder
Shell Material & Finish	Steel, Tin Plated
Contact Finish	Gold, 8.00µin (0.203µm) thickness
Current Rating	7.5A
Voltage Rating	300V
Flange Feature	Housing/Shell (Unthreaded)
Operating Temperature Range	-55°C to 125°C
Material Flammability	UL94 V-0
RoHS Status	RoHS Compliant
Contact Material	Brass

Substitute Part Grouping Explanation

Substitution eligibility for the L77DAF15SU is determined by maintaining compatibility across the following critical parameters:

Mandatory Compatibility Parameters:

Connector type (D-Sub receptacle, female sockets)
Position count and row configuration (15 positions, 2 rows)
Shell size (Size 2, DA/A layout)
Termination method (solder)
Basic electrical ratings (voltage and current capacity)

Variable Parameters Defining Substitution Groups:

Mounting configuration: Through-hole vertical versus panel mount options
Shell material and finish: Tin-plated steel versus nickel-plated steel
Flange design: Unthreaded housing, board-side threaded, mating-side screwlock, or combinations
Contact plating thickness: Full gold coating versus flash gold
Operating temperature range: -55°C to 125°C versus -50°C to 100°C
Current rating variance: 3A to 7.5A per contact
Compliance certifications: RoHS versus ROHS3, REACH status

The L77DAF15SU and its equivalents share the same core D-Sub 15-position receptacle architecture. Selection among substitutes depends on whether the application requires panel mounting, specific temperature extremes, or particular regulatory compliance frameworks.

Parameter Comparison

Parameter	L77DAF15SU	172-015-212R001	172-015-212R911	172-E15-213R001	172-E15-213R011	172-E15-213R021	172-E15-213R031	172-E15-213R911	2-338314-2	A-DF 15 PP/Z	D15S24A4GV00LF
Manufacturer	Amphenol ICC	NorComp Inc.	NorComp Inc.	NorComp Inc.	NorComp Inc.	NorComp Inc.	NorComp Inc.	NorComp Inc.	TE Connectivity	Assmann WSW	Amphenol ICC (FCI)
Connector Type	D-Sub Receptacle, Female	D-Sub Receptacle, Female	D-Sub Receptacle, Female	D-Sub Receptacle, Female	D-Sub Receptacle, Female	D-Sub Receptacle, Female	D-Sub Receptacle, Female	D-Sub Receptacle, Female	D-Sub Receptacle, Female	D-Sub Receptacle, Female	D-Sub Receptacle, Female
Position Count	15, 2 rows	15, 2 rows	15, 2 rows	15, 2 rows	15, 2 rows	15, 2 rows	15, 2 rows	15, 2 rows	15, 2 rows	15, 2 rows	15, 2 rows
Shell Size	Size 2 (DA, A)	Size 2 (DA, A)	Size 2 (DA, A)	Size 2 (DA, A)	Size 2 (DA, A)	Size 2 (DA, A)	Size 2 (DA, A)	Size 2 (DA, A)	Size 2 (DA, A)	Size 2 (DA, A)	Size 2 (DA, A)
Mounting Type	Through Hole, Vertical	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Through Hole, Vertical	Through Hole, Vertical	Through Hole, Vertical
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shell Material & Finish	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin-Nickel Plated
Contact Finish	Gold, 8.00µin	Gold, Flash	Gold, Flash	Gold, Flash	Gold, Flash	Gold, Flash	Gold, Flash	Gold, Flash	Gold, -	Gold, Flash	Gold, Flash
Current Rating	7.5A	5A	5A	5A	5A	5A	5A	5A	6A	3A	5A per Contact
Voltage Rating	300V	-	-	-	-	-	-	-	-	250V	300V
Flange Feature	Housing/Shell (Unthreaded)	Housing/Shell (Unthreaded)	Board (4-40), Mating (4-40) Screwlock	Housing/Shell (Unthreaded)	Board (4-40)	Board (4-40)	Mating (4-40)	Board (4-40), Mating (4-40) Screwlock	Housing/Shell (M3)	Housing/Shell (Unthreaded)	Mating, Female Screwlock (4-40)
Operating Temperature	-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	-50°C to 100°C	-50°C to 100°C	-50°C to 100°C	-55°C to 105°C	-20°C to 105°C	-55°C to 125°C
Material Flammability	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	ROHS3 Compliant	RoHS Compliant
Product Status	Active	Obsolete	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Selection: L77DAF15SU The L77DAF15SU remains the standard choice for applications requiring vertical through-hole mounting with operating temperatures spanning -55°C to 125°C and current capacity of 7.5A. This part carries active product status and RoHS compliance.

Vertical Through-Hole Alternatives (Direct Mechanical Substitutes):

D15S24A4GV00LF (Amphenol ICC FCI, Delta D series): Active status, matches the -55°C to 125°C operating range and 300V rating. Features mating-side screwlock flange and tin-nickel plated shell. Current rating of 5A per contact represents a reduction from L77DAF15SU.
2-338314-2 (TE Connectivity AMPLIMITE HDP-20): Active status, through-hole vertical mounting. Operating range -55°C to 105°C. Board lock feature. Phosphor bronze contacts. Current rating 6A.
A-DF 15 PP/Z (Assmann WSW Components): Active status, vertical through-hole. Current rating 3A—sufficient only for applications not requiring the full 7.5A capacity. Operating range limited to -20°C to 105°C. Voltage rating 250V.

Panel Mount Alternatives (Different Mounting Requirement): NorComp Inc. provides multiple panel mount receptacles within the 172-E series (172-E15-213R001, 172-E15-213R011, 172-E15-213R021, 172-E15-213R031, 172-E15-213R911). All feature nickel-plated steel shells, active product status, and ROHS3 compliance. Current ratings are uniformly 5A. Operating temperature range is -50°C to 100°C. These connectors should be selected only when panel mounting is required and the reduced temperature range is acceptable.

The obsolete NorComp 172-015 series (172-015-212R001, 172-015-212R911) shares specifications with the 172-E series but carries obsolete product status. Selection of obsolete parts is not recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can the L77DAF15SU be directly substituted with a panel mount connector? A: No. The L77DAF15SU is designed for vertical through-hole PCB mounting. Panel mount variants (NorComp 172-E series) require a different mounting footprint and flange structure. Substitution is possible only when the application can accommodate the altered mounting configuration.

Q: What is the impact of reduced current rating in substitute parts? A: Several substitutes carry lower current ratings than the L77DAF15SU (3A to 6A versus 7.5A). If the application requires all 15 contacts to carry current at or near maximum rating, only the L77DAF15SU, D15S24A4GV00LF (5A per contact), and 2-338314-2 (6A) are suitable. The A-DF 15 PP/Z (3A) is restricted to lower-current applications.

Q: Does gold contact plating thickness affect substitution eligibility? A: The L77DAF15SU specifies 8.00µin (0.203µm) gold plating thickness, while most substitutes use flash gold plating. Both deliver gold contact finish and are electrically compatible. Flash plating provides adequate contact durability for standard signal applications. Selection between them depends on application requirements for contact wear resistance and expected mating cycles.

Q: Are there operating temperature restrictions when substituting with NorComp parts? A: Yes. NorComp substitutes (172-015 series and 172-E series) operate over -50°C to 100°C, which is narrower than the L77DAF15SU range of -55°C to 125°C. Substitution is not suitable for applications exceeding 100°C or dropping below -50°C. The D15S24A4GV00LF and 2-338314-2 offer expanded temperature ranges (-55°C or better) and are preferred for extreme temperature environments.

Q: What is the difference between tin plating and nickel plating on the shell? A: The L77DAF15SU and most through-hole variants use tin-plated steel shells. NorComp 172-E series and some 172-015 variants employ nickel plating. Both finishes provide corrosion resistance suitable for standard applications. Shell plating selection does not affect electrical performance and is driven by environmental exposure and manufacturing preference.

Q: Which substitute offers the closest performance match to the L77DAF15SU? A: D15S24A4GV00LF provides the closest technical alignment, matching both the operating temperature range (-55°C to 125°C) and voltage rating (300V). Current rating is 5A per contact instead of 7.5A, representing the only material performance difference. Both parts are actively manufactured and RoHS compliant.

Q: Are all these parts suitable for new designs? A: The obsolete NorComp 172-015 series is not recommended for new designs. Active-status parts include the L77DAF15SU, all 172-E series variants, 2-338314-2, A-DF 15 PP/Z, and D15S24A4GV00LF. Selection among active parts depends on mounting configuration, temperature requirements, and current capacity constraints.

Q: Why would an application require the 172-E series instead of the L77DAF15SU? A: The 172-E series is selected when panel mounting is required (rather than vertical through-hole PCB mounting) and when ROHS3 compliance is explicitly mandated for the application. Some equipment specifications reference specific connector manufacturers, making NorComp parts the required substitutes despite technical equivalence.

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