L77DFA15POL2

Part Overview

The L77DFA15POL2 is a 15-position D-Sub plug connector with male pins, manufactured by Amphenol ICC (Commercial Products). This connector features panel mount, through-hole installation with solder termination and tin-plated steel housing with gold-plated contacts. The product status is Obsolete, necessitating identification of active substitute models for current applications and new designs. Alternative components must maintain compatibility across electrical ratings, mechanical mounting configurations, and contact specifications.

Key Parameters

Parameter	Value
Connector Type	D-Sub Plug, Male Pins
Number of Positions	15
Shell Size / Layout	2 (DA, A)
Mounting Type	Panel Mount, Through Hole
Termination	Solder
Current Rating	7.5A
Voltage Rating	300V
Operating Temperature	-55°C to 155°C
Shell Material / Finish	Steel, Tin Plated
Contact Material	Brass
Contact Finish	Gold (20.0µin / 0.51µm)
Flange Feature	Housing/Shell (Unthreaded)
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution of the L77DFA15POL2 is determined by the following critical parameters that must match or exceed the original specifications:

Mandatory Matching Parameters:

Connector Type: D-Sub Plug with Male Pins
Number of Positions: 15
Shell Size / Layout: 2 (DA, A)
Mounting Type: Panel Mount, Through Hole
Termination: Solder

Allowable Variations:

Product Status: Active substitutes preferred over Obsolete
Current Rating: Must be ≥ 7.5A
Voltage Rating: Must be ≥ 300V
Operating Temperature Range: May vary; -55°C minimum acceptable for thermal compatibility
Shell Material Finish: Steel Tin Plated or Steel Nickel Plated acceptable
Contact Finish: Gold plated acceptable at any thickness ≥ Flash

The following parts meet substitution criteria through matching core electrical and mechanical parameters while offering improved product status (Active vs. Obsolete).

Parameter Comparison

Parameter	L77DFA15POL2 (Original)	L717DFA15POL2 (MFR Recommended)	1-747872-6 (TE Connectivity)	1-5747872-6 (TE Connectivity)	172-015-112R001 (NorComp)	172-E15-113R031 (NorComp)	172-E15-113R911 (NorComp)	191-015-113L001 (NorComp)	191-015-113L551 (NorComp)	191-015-113L561 (NorComp)
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Number of Positions	15	15	15	15	15	15	15	15	15	15
Shell Size / 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)
Mounting Type	Panel Mount, Through Hole	Panel Mount, Through Hole	Through Hole	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
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating (Amps)	7.5A	7.5A	6A	6A	5A	5A	5A	5A	5A	5A
Voltage Rating	300V	300V	125V	125V	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified
Operating Temperature	-55°C to 155°C	-55°C to 125°C	-55°C to 105°C	-55°C to 105°C	-50°C to 100°C	-50°C to 100°C	-50°C to 100°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Shell Material / Finish	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated
Contact Material	Brass	Brass	Brass	Brass	Brass	Brass	Brass	Brass	Brass	Brass
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Flange Feature	Housing/Shell (Unthreaded)	Housing/Shell (Unthreaded)	Mating Side, Female Screwlock (4-40)	Mating Side, Female Screwlock (4-40)	Housing/Shell (Unthreaded)	Mating Side (4-40)	Board Side (4-40); Mating Side, Female Screwlock (4-40)	Housing/Shell (Unthreaded)	Housing/Shell (4-40)	Housing/Shell (4-40)
Product Status	Obsolete	Active	Active	Active	Obsolete	Active	Active	Active	Active	Active
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	Not applicable	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute - L717DFA15POL2 (Amphenol ICC): The L717DFA15POL2 is the manufacturer-recommended substitute and the preferred selection for direct replacement. It matches all critical electrical and mechanical parameters, maintains identical shell size (2 DA/A), panel mount configuration, and solder termination. Product status is Active with current availability. Current and voltage ratings equal the original specification (7.5A, 300V). Operating temperature maximum reduces to 125°C; applications requiring temperatures above 125°C must implement design review. RoHS compliance and MSL rating are maintained.

Secondary Substitutes - TE Connectivity AMPLIMITE HD-20 Series (1-747872-6 / 1-5747872-6): These parts provide functional equivalency with mechanical and electrical compatibility across 15-position D-Sub configurations. Current rating of 6A and voltage rating of 125V are lower than the original; applications requiring 7.5A continuous current or 300V operation must perform electrical analysis. Mounting accommodates through-hole installation with female screwlock features on the mating side. Product status is Active. Temperature range extends to -55°C minimum, suitable for industrial environments. RoHS compliance applies to 1-747872-6; 1-5747872-6 has not-applicable RoHS status.

Tertiary Substitutes - NorComp 172 and 191 Series: NorComp Series 172-015-112R001, 172-E15-113R031, 172-E15-113R911, 191-015-113L001, 191-015-113L551, and 191-015-113L561 provide direct 15-position D-Sub plug substitution with panel mount, through-hole termination. Current ratings of 5A require verification for applications above this level. Most variants feature ROHS3 compliance. Series 191 parts include shielding options and board lock features. Operating temperature range -50°C to 100°C covers standard commercial and extended industrial applications. Part 172-015-112R001 holds Obsolete status; all other NorComp variants are Active.

All listed substitutes maintain D-Sub DA/A shell size, 15-position configuration, and solder termination as specified in the original component.

Frequently Asked Questions (FAQ)

Q: Can the L717DFA15POL2 directly replace the L77DFA15POL2? A: Yes. The L717DFA15POL2 is the manufacturer-recommended substitute with identical electrical specifications (7.5A, 300V), matching shell size (2 DA/A), panel mount configuration, and solder termination. The only operational difference is maximum operating temperature of 125°C versus 155°C in the original. Applications operating below 125°C show complete compatibility.

Q: What are the current and voltage limitations of TE Connectivity 1-747872-6 and 1-5747872-6 substitutes? A: Both TE parts are rated 6A and 125V, compared to the original 7.5A and 300V. Applications requiring 7.5A continuous current or 300V operation must perform electrical analysis to confirm adequate margin with the reduced ratings. Lower-power applications operating within these limits require no additional consideration.

Q: Which NorComp parts are suitable for new designs? A: NorComp Series 172-E15-113R031, 172-E15-113R911, 191-015-113L001, 191-015-113L551, and 191-015-113L561 are Active and suitable for new designs. Series 172-015-112R001 holds Obsolete status and is not recommended for new applications. All active NorComp variants comply with ROHS3 standards.

Q: How does the mounting configuration differ between substitutes? A: L77DFA15POL2, L717DFA15POL2, and all NorComp variants feature panel mount, through-hole installation with unthreaded or 4-40 threaded housings. TE Connectivity parts (1-747872-6, 1-5747872-6) are through-hole only without panel mount specification; boards must provide adequate mechanical support. Flange design varies: some utilize unthreaded housings, others feature mating-side or board-side screwlock provisions (4-40). Verify mechanical fit within the target enclosure before final selection.

Q: Are shell material differences between tin-plated and nickel-plated finishes significant? A: Both finishes provide corrosion protection suitable for industrial environments. Tin-plated variants (L77DFA15POL2, L717DFA15POL2, TE Connectivity parts) typically offer cost efficiency. Nickel-plated variants (NorComp Series 172-E and 191) provide enhanced environmental resistance and are specified in some military or harsh-environment applications. Selection depends on application environment and corrosion requirements; both finishes meet general industrial standards.

Q: Do all substitutes maintain shielding capability? A: The original L77DFA15POL2 does not specify shielding. NorComp Series 191-015-113L001, 191-015-113L551, and 191-015-113L561 include shielded configurations, providing optional electromagnetic compatibility benefits. TE Connectivity and NorComp Series 172 parts do not specify shielding. Shielded variants are necessary only for applications requiring EMI/RFI suppression.

Q: What is the significance of board lock features in NorComp Series 172-E15-113R911 and 191 variants? A: Board lock features provide mechanical retention to printed circuit board assemblies, preventing accidental connector disconnection during vibration or handling. This feature is optional and unnecessary for applications with permanent solder connections and no disconnection cycling. Standard panel-mount varieties without board lock remain suitable for fixed installations.

Q: Which substitutes are recommended for RoHS-sensitive applications? A: All recommended substitutes maintain RoHS or ROHS3 compliance. L77DFA15POL2 and L717DFA15POL2 are RoHS Compliant. NorComp variants and TE part 1-747872-6 are ROHS3 Compliant. TE part 1-5747872-6 has not-applicable RoHS status. For RoHS-mandatory requirements, exclude 1-5747872-6 and verify design documentation for the specific RoHS generation applicable to your region.

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