TE Connectivity 747301-7 D-Sub 37-Position Receptacle Equivalent & Substitute Parts

Part Overview

The TE Connectivity 747301-7 is a 37-position D-Sub receptacle connector with female sockets, vertical solder termination, and through-hole mounting. This connector belongs to the AMPLIMITE HD-20 series and is classified as Active product status. The part features a 4-position shell size (DC, C layout), steel tin-plated housing, gold-flashed phosphor bronze contacts, and operates across a temperature range of -55°C to 105°C with a 125V rating and 6A current capacity.

Equivalent and substitute parts are necessary when the original part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, when compliance certifications differ between procurement requirements, or when design flexibility permits selection from multiple qualified manufacturers offering functionally compatible D-Sub receptacle connectors.

Key Parameters

Parameter	Specification
Connector Type	Receptacle, Female Sockets
Number of Positions	37
Shell Size, Connector Layout	4 (DC, C)
Mounting Type	Through Hole
Termination	Solder
Shell Material, Finish	Steel, Tin Plated
Contact Finish	Gold
Current Rating (Amps)	6A
Voltage Rating	125V
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
Dielectric Material	Polyester
Contact Material	Phosphor Bronze

Substitute Part Grouping Explanation

Substitution of D-Sub 37-position receptacle connectors is determined by strict equivalence across the following critical parameters: connector type (receptacle with female sockets), number of positions (37), shell size and layout (4, DC, C), mounting method (through hole), termination type (solder), and material flammability rating (UL94 V-0). These parameters establish functional interchangeability at the circuit board interface level.

Secondary parameters including shell material finish, contact finish type, current rating, voltage rating, and operating temperature range define the electrical and environmental performance envelope. Substitutes must maintain compatibility within these specifications or exceed them. Packaging format (bulk, tube, tray) does not affect electrical or mechanical compatibility but influences procurement and assembly workflows.

Compliance certifications (RoHS status, REACH status) and product status (Active, Obsolete) are documented for procurement decision-making but do not prevent functional substitution. Variations in contact material composition, dielectric material formulation, and flange feature design (housing-mounted versus mating-side screwlock) represent acceptable design alternatives within the D-Sub 37-position receptacle category.

Parameter Comparison

Parameter	747301-7 (Main)	5747301-7	747301-8	09664516513	09664517513	172-037-212R001	172-037-212R011	A-DF 37 PP/Z	D37S24A4GL00LF	D37S24A4GV00LF	D37S24A4GX00LF
Manufacturer	TE Connectivity	TE Connectivity	TE Connectivity	HARTING	HARTING	NorComp Inc.	NorComp Inc.	Assmann WSW	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)
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	37	37	37	37	37	37	37	37	37	37	37
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Shell Size, Connector Layout	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
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	Steel	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin-Nickel Plated	Steel, Tin-Nickel Plated	Steel, Tin-Nickel Plated
Contact Finish	Gold	Gold	Gold	Not Specified	Not Specified	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness	Flash	Flash	30.0µin (0.76µm)	Not Specified	Not Specified	Flash	Flash	Flash	Flash	Flash	Flash
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
Current Rating (Amps)	6A	6A	6A	6.5A	6.5A	5A	5A	3A	5A per Contact	5A per Contact	5A per Contact
Voltage Rating	125V	125V	125V	Not Specified	Not Specified	Not Specified	Not Specified	250V	300V	300V	300V
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-50°C ~ 100°C	-50°C ~ 100°C	-20°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Not Specified	Brass	Brass	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Dielectric Material	Polyester	Polyester	Polyester	PBT, Polyester, Glass Filled	PBT, Polyester, Glass Filled	PBT, Polyester	PBT, Polyester	PBT, Glass Filled	PBT	PBT	PBT
Product Status	Active	Active	Active	Active	Active	Obsolete	Obsolete	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Bulk	Tube	Bulk	Tray	Bulk	Tray	Tray	Tray	Tray	Tray	Tray

Engineering Selection Recommendations

Direct Equivalents (Same Manufacturer, Same Series)

5747301-7 (TE Connectivity AMPLIMITE HD-20): This part is a direct equivalent to 747301-7 with identical electrical and mechanical specifications. The primary difference is packaging format (tube versus bulk) and RoHS compliance status (ROHS3 Compliant versus RoHS non-compliant). Selection of 5747301-7 is appropriate when ROHS3 compliance is required or when tube packaging aligns with manufacturing processes. Inventory availability is higher at 3673 pieces.

747301-8 (TE Connectivity AMPLIMITE HD-20): This part maintains identical specifications to 747301-7 with the exception of contact finish thickness (30.0µin versus flash). Both parts share the same series, manufacturer, and electrical ratings. The thicker gold plating on 747301-8 provides enhanced contact durability in high-cycle mating applications. RoHS non-compliant status matches the main part.

Cross-Manufacturer Substitutes (Equivalent Performance)

09664516513 and 09664517513 (HARTING): These HARTING D-Sub 37-position receptacles provide functional equivalence with enhanced current rating (6.5A versus 6A) and extended operating temperature range (-55°C to 125°C versus -55°C to 105°C). Both parts feature board lock functionality and ROHS3 compliance. The primary design difference is mating-side female screwlock flange feature. 09664516513 is packaged in trays; 09664517513 is bulk packaged. These parts are suitable for applications requiring higher current capacity or extended temperature performance.

D37S24A4GL00LF, D37S24A4GV00LF, D37S24A4GX00LF (Amphenol ICC Delta D Series): These three Amphenol parts represent the most comprehensive electrical upgrade path, offering 5A per contact current rating, 300V voltage rating (versus 125V), and -55°C to 125°C operating range. All three feature board lock functionality and ROHS3 compliance. Differences among the three variants relate to flange feature design: D37S24A4GL00LF has housing-mounted M3 flange; D37S24A4GV00LF has mating-side female screwlock; D37S24A4GX00LF has housing-mounted 4-40 flange. Selection depends on mechanical mounting requirements.

Limited Substitutes (Reduced Performance Specifications)

A-DF 37 PP/Z (Assmann WSW Components): This part meets core D-Sub 37-position receptacle requirements but operates at reduced current capacity (3A versus 6A) and narrower temperature range (-20°C to 105°C versus -55°C to 105°C). Voltage rating is higher at 250V. ROHS3 compliant. Suitable only for low-current signal applications within the specified temperature envelope.

172-037-212R001 and 172-037-212R011 (NorComp Inc.): These obsolete NorComp parts provide functional D-Sub 37-position receptacle connectivity but with reduced current rating (5A), unspecified voltage rating, and narrower operating temperature range (-50°C to 100°C). Both feature panel mount capability in addition to through-hole mounting. ROHS3 compliant. Obsolete product status indicates limited availability and no ongoing manufacturer support. Selection is not recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can 5747301-7 be used as a direct replacement for 747301-7?

A: Yes. The 5747301-7 is electrically and mechanically identical to 747301-7. The only differences are packaging format (tube versus bulk) and RoHS compliance status (ROHS3 Compliant versus RoHS non-compliant). If your procurement specification permits ROHS3-compliant parts and tube packaging is compatible with your assembly process, 5747301-7 is a direct substitute.

Q: What is the difference between 747301-8 and 747301-7?

A: Both parts are from the same TE Connectivity AMPLIMITE HD-20 series with identical electrical specifications. The difference is contact finish thickness: 747301-8 has 30.0µin (0.76µm) gold plating compared to flash plating on 747301-7. The thicker plating on 747301-8 provides improved contact durability in applications with frequent mating cycles.

Q: Are HARTING parts 09664516513 and 09664517513 compatible with 747301-7?

A: These HARTING parts are functionally compatible as D-Sub 37-position receptacles. They exceed the electrical specifications of 747301-7 with higher current rating (6.5A versus 6A) and extended operating temperature (-55°C to 125°C versus -55°C to 105°C). Both are ROHS3 compliant. The primary design difference is the board lock feature and mating-side female screwlock flange. Mechanical mounting interfaces differ, so verify flange compatibility with your PCB design.

Q: Should I use Amphenol D37S24 series parts instead of 747301-7?

A: Amphenol D37S24 series parts (D37S24A4GL00LF, D37S24A4GV00LF, D37S24A4GX00LF) are suitable substitutes when your application requires higher voltage rating (300V versus 125V) or extended operating temperature range (-55°C to 125°C). All three variants are ROHS3 compliant and feature board lock functionality. Select the specific variant based on your flange mounting requirement: GL for M3 housing-mounted, GV for mating-side screwlock, or GX for 4-40 housing-mounted.

Q: Why is the Assmann A-DF 37 PP/Z not recommended as a substitute?

A: The A-DF 37 PP/Z operates at significantly reduced current capacity (3A versus 6A) and narrower operating temperature range (-20°C to 105°C versus -55°C to 105°C). This part is suitable only for low-current signal applications and cannot support the full electrical performance envelope of 747301-7. Use this part only if your application requirements are within its reduced specifications.

Q: Can I use NorComp 172-037 series parts?

A: NorComp 172-037-212R001 and 172-037-212R011 are obsolete products with limited availability. Both have reduced current rating (5A versus 6A) and narrower operating temperature range (-50°C to 100°C versus -55°C to 105°C). These parts are not recommended for new designs. If legacy system maintenance requires these parts, verify current inventory availability before committing to procurement.

Q: What is the difference between the three Amphenol D37S24A4G variants?

A: All three variants (D37S24A4GL00LF, D37S24A4GV00LF, D37S24A4GX00LF) have identical electrical specifications and operating characteristics. The differences are in flange feature design: GL has M3 housing-mounted flange, GV has mating-side female screwlock flange, and GX has 4-40 housing-mounted flange. Select based on your PCB mounting interface requirements.

Q: Does packaging format affect electrical compatibility?

A: No. Packaging format (bulk, tube, tray) does not affect electrical or mechanical compatibility. Packaging selection influences manufacturing workflow, component handling, and storage. Choose packaging based on your assembly process requirements and inventory management practices.

Q: Are all substitute parts RoHS compliant?

A: No. The main part 747301-7 and 747301-8 are RoHS non-compliant. Most substitute parts are ROHS3 compliant (5747301-7, HARTING parts, NorComp parts, Assmann part, and most Amphenol variants). If your procurement specification requires RoHS compliance, select from the ROHS3-compliant alternatives. Verify compliance requirements with your procurement department before finalizing part selection.

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