TE Connectivity 745988-4 D-Sub Receptacle Equivalent and Substitute Parts

Part Overview

The TE Connectivity 745988-4 is a 9-position D-Sub receptacle connector with female sockets, right-angle solder termination, and through-hole mounting. This connector is part of the AMPLIMITE HD-20 series and is classified as active product status. The connector features a tin-plated steel shell, gold-plated phosphor bronze contacts, and a ground strap. Substitute parts are identified when equivalent electrical and mechanical parameters are required for applications where the primary part is unavailable, when alternative packaging formats are needed, or when design specifications allow for compatible alternatives within the same connector category.

Key Parameters

Parameter	Value
Connector Type	D-Sub Receptacle, Female Sockets
Number of Positions	9
Number of Rows	2
Shell Size, Connector Layout	1 (DE, E)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Current Rating	6A
Voltage Rating	125V
Operating Temperature Range	-55°C to 105°C
Shell Material, Finish	Steel, Tin Plated
Contact Material	Phosphor Bronze
Contact Finish	Gold
Backset Spacing	0.590" (14.99mm)
Material Flammability Rating	UL94 V-0
Color	Black

Substitute Part Grouping Explanation

Substitution of D-Sub receptacle connectors is determined by strict alignment of the following critical parameters: connector type (receptacle with female sockets), number of positions (9), number of rows (2), shell size and layout (1 DE, E), mounting type (through hole, right angle), termination method (solder), and operating temperature range (-55°C to 105°C). Additional considerations include current rating capacity, voltage rating, shell material finish, contact material and finish, and flange feature configuration.

The substitute parts listed below are grouped into two categories:

Direct Equivalent (Same Manufacturer): Part 5745988-4 from TE Connectivity maintains identical specifications to the main part with the exception of RoHS3 compliance status and increased inventory availability.

Compatible Alternatives (Different Manufacturers): Parts from NorComp Inc. (183 series) and Mercury United Electronics, Inc. (626 series) provide functional equivalence with variations in specific parameters including shell material finish (nickel plated versus tin plated), contact material (brass versus phosphor bronze), current rating capacity (5A or 3A per contact versus 6A), flange feature design, and dielectric material composition. These alternatives maintain the core electrical and mechanical compatibility required for 9-position D-Sub receptacle applications.

Parameter Comparison

Parameter	745988-4 (Main)	5745988-4	183-009-213R161	183-009-213R171	183-009-213R181	183-009-213R531	183-009-213R541	183-009-213R571	626-009-262-012	626-009-262-013
Manufacturer	TE Connectivity	TE Connectivity	NorComp Inc.	NorComp Inc.	NorComp Inc.	NorComp Inc.	NorComp Inc.	NorComp Inc.	Mercury United Electronics	Mercury United Electronics
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
Number of Positions	9	9	9	9	9	9	9	9	9	9
Number of Rows	2	2	2	2	2	2	2	2	2	2
Shell Size, Connector Layout	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	Through Hole, Right Angle	Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Board Edge, Through Hole, Right Angle	Board Edge, Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating	6A	6A	5A	5A	5A	5A	5A	5A	3A per Contact	3A per Contact
Operating Temperature Range	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 85°C	-55°C to 85°C
Shell Material, Finish	Steel, Tin Plated	Steel, Tin Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated
Contact Material	Phosphor Bronze	Phosphor Bronze	Brass	Brass	Brass	Brass	Brass	Brass	Copper Alloy	Copper Alloy
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness	30.0µin (0.76µm)	30.0µin (0.76µm)	Flash	Flash	Flash	Flash	Flash	Flash	Flash	Flash
Backset Spacing	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)	0.584" (14.84mm)	0.584" (14.84mm)
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
Color	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black
RoHS Status	Not Applicable	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Equivalent Selection: Part 5745988-4 from TE Connectivity is the primary direct equivalent to 745988-4. Both parts maintain identical electrical and mechanical specifications, including 6A current rating, 125V voltage rating, phosphor bronze contacts with 30.0µin gold plating, and operating temperature range of -55°C to 105°C. The 5745988-4 variant offers ROHS3 compliance status and higher inventory availability (1404 units versus 939 units). Selection of 5745988-4 is appropriate when ROHS3 compliance is required or when inventory priority is a consideration.

NorComp Inc. 183 Series Selection: Parts 183-009-213R161, 183-009-213R171, 183-009-213R181, 183-009-213R531, 183-009-213R541, and 183-009-213R571 are compatible alternatives with the following considerations: current rating is reduced to 5A per contact (versus 6A for the main part), shell material finish is nickel plated (versus tin plated), contact material is brass (versus phosphor bronze), and contact finish thickness is flash (versus 30.0µin). All NorComp parts maintain the same operating temperature range (-55°C to 105°C), UL94 V-0 flammability rating, and ROHS3 compliance. These parts differ in flange feature configuration (housing/shell 4-40, unthreaded, mating side female screwlock) and features (ground strap, board lock). Selection from the NorComp 183 series is appropriate when the reduced current rating is acceptable for the application and when alternative flange configurations or mounting features are required.

Mercury United Electronics 626 Series Selection: Parts 626-009-262-012 and 626-009-262-013 are compatible alternatives with the following considerations: current rating is 3A per contact (versus 6A for the main part), operating temperature range is limited to -55°C to 85°C (versus -55°C to 105°C), backset spacing is 0.584" (versus 0.590"), shell material finish is nickel plated, contact material is copper alloy, and contact finish thickness is flash. Both 626 series parts include mounting brackets and shielding features. Selection from the Mercury 626 series is appropriate only when the reduced current rating and lower maximum operating temperature are acceptable for the application and when shielded connector configuration with mounting brackets is required.

All substitute parts maintain active product status and REACH unaffected compliance. Selection should be based on specific application requirements for current capacity, operating temperature range, shell material finish, contact material composition, and mounting configuration.

Frequently Asked Questions (FAQ)

Q: Can 5745988-4 be used as a direct replacement for 745988-4?

A: Yes. Part 5745988-4 is a direct equivalent with identical electrical and mechanical specifications. Both parts are 9-position D-Sub receptacles with 6A current rating, 125V voltage rating, phosphor bronze contacts with 30.0µin gold plating, and -55°C to 105°C operating temperature range. The primary difference is that 5745988-4 carries ROHS3 compliance certification.

Q: What are the key differences between TE Connectivity 745988-4 and NorComp 183-009-213R161?

A: The primary differences are: (1) current rating is 5A for the NorComp part versus 6A for the TE part, (2) shell material finish is nickel plated versus tin plated, (3) contact material is brass versus phosphor bronze, (4) contact finish thickness is flash versus 30.0µin, and (5) flange feature is unthreaded housing/shell versus 4-40 threaded housing/shell. Both maintain the same 9-position configuration, operating temperature range, and UL94 V-0 rating.

Q: Are Mercury 626-009-262-012 and 626-009-262-013 suitable replacements for 745988-4?

A: These parts are compatible alternatives only when application requirements allow for reduced current capacity (3A per contact versus 6A) and lower maximum operating temperature (85°C versus 105°C). Both Mercury parts include shielding and mounting brackets not present in the main part. Backset spacing is also slightly different (0.584" versus 0.590").

Q: What is the difference between NorComp parts with ground strap versus board lock features?

A: NorComp 183-009-213R161, 183-009-213R171, and 183-009-213R181 include ground strap features. NorComp 183-009-213R531, 183-009-213R541, and 183-009-213R561 include board lock features instead. The ground strap provides electrical grounding connection, while board lock provides mechanical retention on the circuit board. Selection depends on application requirements for grounding or mechanical locking.

Q: What is the significance of flange feature differences among NorComp parts?

A: NorComp parts vary in flange configuration: (1) 183-009-213R161 has unthreaded housing/shell flange, (2) 183-009-213R171 and 183-009-213R531 have 4-40 threaded housing/shell flange, and (3) 183-009-213R181, 183-009-213R541, and 183-009-213R561 have mating side female screwlock flange. Flange selection determines how the connector is secured to the mating connector or panel. Application requirements for connector retention method should guide selection.

Q: Why is the operating temperature range different for Mercury 626 series parts?

A: Mercury 626-009-262-012 and 626-009-262-013 have a maximum operating temperature of 85°C compared to 105°C for the main part and NorComp alternatives. This is a material and design limitation of the Mercury series. Applications requiring operation above 85°C must use the main part or NorComp alternatives.

Q: What does contact finish thickness mean, and why does it vary?

A: Contact finish thickness refers to the plating depth of the gold coating on the connector contacts. The main part has 30.0µin (0.76µm) thickness, while substitute parts have flash thickness (minimal coating). Thicker plating generally provides better corrosion resistance and contact durability. Applications in corrosive environments or with high contact cycling may require the thicker 30.0µin plating.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed (5745988-4, NorComp 183 series, and Mercury 626 series) are ROHS3 compliant. The main part 745988-4 has RoHS status listed as not applicable. If ROHS3 compliance is a requirement, any of the substitute parts are suitable.

Q: What is the difference between through-hole and panel mount mounting types?

A: The main part 745988-4 specifies through-hole mounting only. NorComp 183 series parts specify panel mount, through-hole, right-angle mounting, indicating they support both panel mounting and through-hole soldering. Mercury 626 series parts specify board edge, through-hole, right-angle mounting. Mounting type selection depends on the circuit board design and connector installation method.

Q: Can packaging format differences affect part selection?

A: Yes. The main part 745988-4 is supplied in bulk packaging, while most NorComp parts are supplied in tray packaging, and Mercury 626-009-262-013 is supplied in bulk. Packaging format affects handling, storage, and inventory management but does not affect electrical or mechanical compatibility. Selection should consider procurement and assembly process requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message