TE Connectivity 747904-5 D-Sub Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 747904-5 is a 9-position D-Sub plug connector with male pins, solder cup termination, and free hanging (in-line) mounting configuration. This connector is part of the AMPLIMITE HD-20 series and features a steel tin-plated shell with gold-plated contacts. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer Part Number	747904-5
Manufacturer	TE Connectivity AMP Connectors
Connector Type	D-Sub Plug, Male Pins
Number of Positions	9
Shell Size	1 (DE, E)
Mounting Type	Free Hanging (In-Line)
Termination	Solder Cup
Shell Material, Finish	Steel, Tin Plated
Contact Finish	Gold
Contact Finish Thickness	30.0µin (0.76µm)
Current Rating	3A
Voltage Rating	250V
Operating Temperature	-55°C ~ 105°C
Contact Material	Brass
Dielectric Material	Polybutylene Terephthalate (PBT), Glass Filled
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 747904-5 is determined by the following critical parameters:

Primary Substitution Criteria:

Connector type: D-Sub plug with male pins
Number of positions: 9
Shell size: 1 (DE, E)
Termination method: Solder cup
Mounting configuration: Free hanging (in-line)
Current rating: 3A minimum
Voltage rating: 250V minimum
Operating temperature range: -55°C to 105°C
Contact finish: Gold plating
Shell material: Steel, tin plated

Secondary Compatibility Factors:

Contact material: Brass or copper alloy
Dielectric material: PBT or thermoplastic, glass filled
Flange feature configuration
Contact finish thickness tolerance

Substitute parts are grouped into two categories:

Category 1: Direct Manufacturer Equivalent The part 5-747904-5 from TE Connectivity AMP Connectors maintains identical electrical and mechanical specifications with the exception of mounting type (panel mount versus free hanging). This part is active and RoHS3 compliant.

Category 2: Cross-Manufacturer Alternatives Parts from Amphenol ICC (Commercial Products) and NorComp Inc. provide functional equivalence across all critical parameters. These alternatives vary in flange feature configuration, contact form (stamped versus formed), and compliance certifications. Selection depends on specific application requirements and regulatory compliance needs.

Parameter Comparison

Parameter	747904-5 (Main)	5-747904-5	171-009-102L001	L717SDE09PC309	L717SDE09PVFC309	L717SDEG09P	L717SDEG09PC309	L717SDEH09P	L717SDEH09PC309	L777SDE09P
Connector Type	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins	D-Sub Plug, Male Pins
Number of Positions	9	9	9	9	9	9	9	9	9	9
Shell Size	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	Free Hanging (In-Line)	Panel Mount	Panel Mount	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Termination	Solder Cup	Solder Cup	Solder Cup	Solder Cup	Solder Cup	Solder Cup	Solder Cup	Solder Cup	Solder Cup	Solder Cup
Shell Material, Finish	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)	Flash	30.0µin (0.76µm)	30.0µin (0.76µm)	Flash	30.0µin (0.76µm)	Flash	30.0µin (0.76µm)	15.0µin (0.38µm)
Current Rating (Amps)	3A	3A	5A	3A	3A	3A	3A	3A	3A	3A
Voltage Rating	250V	250V	Not Specified	250V	250V	250V	250V	250V	250V	250V
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-50°C ~ 100°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
Contact Material	Brass	Brass	Copper Alloy	Brass	Brass	Brass	Brass	Brass	Brass	Brass
Dielectric Material	PBT, Glass Filled	PBT, Glass Filled	PBT, Glass Filled	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled	Thermoplastic, Glass Filled
Flange Feature	Housing/Shell (Unthreaded)	Housing/Shell (Unthreaded)	Housing/Shell (Unthreaded)	Housing/Shell (Unthreaded)	Mating Side, Female Screwlock (4-40)	Cable Side (M3)	Cable Side (M3)	Cable Side (4-40)	Cable Side (4-40)	Housing/Shell (Unthreaded)
Contact Form	Not Specified	Not Specified	Stamped	Stamped	Stamped	Stamped	Stamped	Stamped	Stamped	Stamped
Product Status	Obsolete	Active	Obsolete	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

For Direct Replacement (Same Mounting Configuration):

The Amphenol ICC L777SDE09P connector provides the closest functional equivalent to the TE Connectivity 747904-5. Both connectors feature free hanging (in-line) mounting, solder cup termination, 9-position configuration, and identical electrical ratings (3A, 250V, -55°C to 105°C). The L777SDE09P is active and RoHS compliant, addressing the obsolescence status of the original part. The contact finish thickness of 15.0µin on the L777SDE09P is lower than the original 30.0µin specification but remains within acceptable gold plating standards for signal-level applications.

For Panel Mount Applications:

The TE Connectivity 5-747904-5 serves as the direct manufacturer alternative when panel mount configuration is required. This part maintains identical electrical specifications and material composition while offering ROHS3 compliance. The part is currently active with substantial inventory availability.

For Extended Temperature or Higher Current Requirements:

The NorComp 171-009-102L001 connector accommodates higher current ratings (5A versus 3A) and maintains the 9-position, solder cup configuration. However, this part operates within a narrower temperature range (-50°C to 100°C) compared to the original specification. The part is obsolete but ROHS3 compliant.

For Screwlock Mating Features:

Amphenol ICC L717SDE09PVFC309 (4-40 screwlock) and L717SDE09PVFMC309 (M3 screwlock) provide mechanical retention features at the mating interface. These parts maintain all electrical specifications and are RoHS compliant. Selection between 4-40 and M3 depends on mating connector specifications.

For Cable-Side Strain Relief:

Amphenol ICC L717SDEG09P and L717SDEH09P connectors feature cable-side flange configurations (M3 and 4-40 respectively) for enhanced mechanical support. Both are active, RoHS compliant, and maintain full electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 747904-5 be directly replaced with the Amphenol ICC L777SDE09P?

A: Yes. Both connectors share identical mounting type (free hanging in-line), termination method (solder cup), position count (9), shell size (DE/E), and electrical ratings (3A, 250V, -55°C to 105°C). The L777SDE09P is active and RoHS compliant, making it suitable for direct substitution in new designs and legacy system support.

Q: What is the difference between the 747904-5 and 5-747904-5?

A: The primary difference is mounting configuration. The 747904-5 is free hanging (in-line), while the 5-747904-5 is panel mount. All other specifications—electrical ratings, termination, shell material, contact finish, and operating temperature—are identical. The 5-747904-5 is active and ROHS3 compliant.

Q: Are there compatibility issues with different contact finish thicknesses?

A: Contact finish thickness variations (15.0µin, 30.0µin, or flash) do not affect electrical compatibility for signal-level applications. All specified parts maintain gold plating for corrosion resistance and contact reliability. Selection should be based on application requirements and environmental exposure.

Q: Which substitute part is recommended for new designs requiring RoHS compliance?

A: All Amphenol ICC SD series connectors (L717SDE09PC309, L717SDE09PVFC309, L717SDEG09P, L717SDEG09PC309, L717SDEH09P, L717SDEH09PC309, L777SDE09P) and the TE Connectivity 5-747904-5 are RoHS compliant. Selection among these options depends on specific mounting and mating interface requirements.

Q: What is the significance of flange feature variations (unthreaded, screwlock, cable-side)?

A: Flange features determine mechanical coupling and strain relief characteristics. Unthreaded flanges provide basic alignment. Screwlock features (4-40 or M3) provide mechanical retention at the mating interface. Cable-side flanges provide strain relief at the cable connection point. Selection depends on the mating connector specification and mechanical support requirements.

Q: Can the NorComp 171-009-102L001 be used as a substitute despite the narrower temperature range?

A: The NorComp part operates from -50°C to 100°C, compared to the original -55°C to 105°C specification. Substitution is acceptable only if the application does not require operation at temperatures below -50°C or above 100°C. The part offers higher current capacity (5A) but is obsolete.

Q: Are there inventory considerations when selecting a substitute?

A: Current inventory levels vary significantly among substitute parts. The Amphenol ICC L777SDE09P (1,730 units), L717SDEH09P (1,577 units), and TE Connectivity 5-747904-5 (3,078 units) offer substantial availability. Inventory status should be confirmed at the time of procurement.

Q: What is the difference between stamped and formed contact construction?

A: The original 747904-5 does not specify contact form. Substitute parts from Amphenol ICC use stamped contacts, while the TE Connectivity parts do not specify this parameter. Stamped contacts are standard in modern D-Sub connectors and provide equivalent performance for signal applications.

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