L777HDA26P D-Sub High Density 26 Position Plug Connector

Part Overview

The L777HDA26P is a 26 position D-Sub high density plug connector manufactured by Amphenol ICC (Commercial Products). This connector features male pins with solder cup termination and is designed for free hanging in-line mounting applications. The part is currently active in production with 703 pieces in stock.

D-Sub high density connectors are essential components in applications requiring compact signal transmission across multiple channels. Alternative models become necessary when specific mounting configurations, temperature ranges, or electrical specifications differ from the original design requirements.

Key Parameters

Parameter	L777HDA26P
Manufacturer	Amphenol ICC (Commercial Products)
Number of Positions	26
Number of Rows	3
Connector Style	D-Sub, High Density
Connector Type	Plug, Male Pins
Shell Size, Connector Layout	2 (DA, A) High Density
Mounting Type	Free Hanging (In-Line)
Termination	Solder Cup
Current Rating (Amps)	3A
Voltage Rating	250V
Operating Temperature	-55°C ~ 155°C
Shell Material, Finish	Steel, Tin Plated
Contact Finish	Gold
RoHS Status	RoHS Compliant
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitute parts for the L777HDA26P are identified based on the following critical parameters that must align for functional compatibility:

Core Compatibility Parameters:

Number of Positions: 26
Number of Rows: 3
Connector Style: D-Sub, High Density
Connector Type: Plug, Male Pins
Shell Size, Connector Layout: 2 (DA, A) High Density
Termination: Solder Cup
Contact Type: Signal
Material Flammability Rating: UL94 V-0

Parameters Allowing Variation:

Mounting Type (Free Hanging vs. Panel Mount)
Shell Material Finish (Tin Plated vs. Nickel Plated)
Contact Form (Stamped vs. Machined)
Dielectric Material (Thermoplastic, Glass Filled vs. Polybutylene Terephthalate, Glass Filled)
Current Rating (3A vs. 5A)
Operating Temperature Range (-55°C ~ 155°C vs. -55°C ~ 105°C)
Flange Feature (Housing/Shell Unthreaded vs. Cable Side or Mating Side configurations)

The three NorComp Inc. substitute parts (180-M26-103L001, 180-M26-103L011, 180-M26-103L031) maintain all core compatibility parameters while offering different mounting and flange configurations suitable for alternative installation requirements.

Parameter Comparison

Parameter	L777HDA26P (Amphenol ICC)	180-M26-103L001 (NorComp)	180-M26-103L011 (NorComp)	180-M26-103L031 (NorComp)
Number of Positions	26	26	26	26
Number of Rows	3	3	3	3
Connector Style	D-Sub, High Density	D-Sub, High Density	D-Sub, High Density	D-Sub, High Density
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Shell Size, Connector Layout	2 (DA, A) High Density	2 (DA, A) High Density	2 (DA, A) High Density	2 (DA, A) High Density
Mounting Type	Free Hanging (In-Line)	Panel Mount	Panel Mount	Panel Mount
Termination	Solder Cup	Solder Cup	Solder Cup	Solder Cup
Shell Material, Finish	Steel, Tin Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated
Contact Finish	Gold	Gold	Gold	Gold
Contact Form	Stamped	Machined	Machined	Machined
Current Rating (Amps)	3A	5A	5A	5A
Operating Temperature	-55°C ~ 155°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
Features	Grounding Indents	Grounding Indents, Shielded	Grounding Indents, Shielded	Grounding Indents, Shielded
Flange Feature	Housing/Shell (Unthreaded)	Housing/Shell (Unthreaded)	Cable Side (4-40)	Mating Side, Female Screwlock (4-40)
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

L777HDA26P Selection Criteria:

Required for free hanging in-line mounting applications
Applications operating at temperatures exceeding 105°C up to 155°C
Systems requiring 250V voltage rating specification
Designs utilizing tin plated steel shell finish
Applications with stamped contact form specifications

180-M26-103L001 Selection Criteria:

Panel mount installation required
Operating temperature range -55°C to 105°C acceptable
Nickel plated shell finish compatible with application
Machined contact form preferred for enhanced durability
Shielded connector configuration beneficial for EMI mitigation
Higher current capacity (5A) suitable for application requirements
ROHS3 compliance required

180-M26-103L011 Selection Criteria:

Panel mount installation required
Cable side flange (4-40) mounting configuration necessary
Operating temperature range -55°C to 105°C acceptable
Shielded connector configuration required
ROHS3 compliance required
Machined contact form preferred

180-M26-103L031 Selection Criteria:

Panel mount installation required
Mating side female screwlock (4-40) configuration necessary
Operating temperature range -55°C to 105°C acceptable
Shielded connector configuration required
ROHS3 compliance required
Machined contact form preferred

All substitute parts maintain active product status and are RoHS compliant. Selection between substitute options depends on specific mounting configuration and flange feature requirements.

Frequently Asked Questions (FAQ)

Q: Can the 180-M26-103L001 substitute for the L777HDA26P in all applications?

A: The 180-M26-103L001 maintains compatibility for the core 26 position, high density D-Sub plug connector function. However, mounting type differs (panel mount vs. free hanging in-line). Applications requiring free hanging in-line mounting must retain the L777HDA26P. Additionally, the operating temperature range is limited to -55°C ~ 105°C compared to the L777HDA26P range of -55°C ~ 155°C.

Q: What is the difference between the three NorComp substitute parts?

A: All three NorComp parts (180-M26-103L001, 180-M26-103L011, 180-M26-103L031) share identical electrical and mechanical specifications. The primary differences are in flange feature configuration: 180-M26-103L001 has unthreaded housing/shell, 180-M26-103L011 features cable side (4-40) flange, and 180-M26-103L031 features mating side female screwlock (4-40) flange. Selection depends on the specific mounting and mating requirements of the application.

Q: Are the NorComp substitutes suitable for high temperature applications?

A: The NorComp substitute parts operate within -55°C to 105°C temperature range. The L777HDA26P operates to 155°C. Applications requiring operation above 105°C must use the L777HDA26P.

Q: What is the difference in contact material processing between the main part and substitutes?

A: The L777HDA26P uses stamped contact form, while all three NorComp substitutes use machined contact form. Both forms are brass material with gold finish. Machined contacts generally provide enhanced durability and consistent contact pressure.

Q: Do the substitute parts provide additional shielding?

A: Yes. The L777HDA26P features grounding indents only. All three NorComp substitute parts include both grounding indents and shielding, providing enhanced EMI mitigation.

Q: What is the current rating difference and does it affect substitution?

A: The L777HDA26P is rated for 3A, while all NorComp substitutes are rated for 5A. The higher current rating of substitute parts does not prevent substitution in applications requiring 3A or less. Applications requiring current capacity above 3A benefit from the higher 5A rating of substitute parts.

Q: Are all parts RoHS compliant?

A: The L777HDA26P is RoHS Compliant. All three NorComp substitute parts are ROHS3 Compliant. Both compliance levels are acceptable for RoHS-regulated applications.

Q: What packaging is used for these connectors?

A: All parts are supplied in tray packaging suitable for automated assembly and component handling.

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