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TE Connectivity 747913-4 D-Sub 25 Position Receptacle Equivalent & Substitute Parts
Part Overview
The TE Connectivity AMP Connectors 747913-4 is a 25 position D-Sub receptacle connector with female sockets, designed for free hanging in-line mounting applications. This connector features solder cup termination, gold-plated brass contacts, and a steel shell with blue zinc plating. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for ongoing design and procurement requirements. Substitute parts maintain core electrical and mechanical compatibility while offering enhanced product status, compliance certifications, and availability.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Connector Style | D-Sub |
| Connector Type | Receptacle, Female Sockets |
| Number of Positions | 25 |
| Number of Rows | 2 |
| Shell Size, Connector Layout | 3 (DB, B) |
| Termination | Solder Cup |
| Contact Material | Brass |
| Contact Finish | Gold |
| Current Rating | 3A (Main Part); 5A (Substitutes) |
| Voltage Rating | 250V (Main Part); Not Specified (NorComp Substitutes) |
| Operating Temperature Range | -55°C ~ 105°C (Main Part); -50°C ~ 100°C (NorComp Substitutes) |
| Material Flammability Rating | UL94 V-0 |
| Dielectric Material | Polybutylene Terephthalate (PBT), Glass Filled (Main Part); PBT (NorComp Substitutes) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by the following core parameters: connector style (D-Sub), connector type (receptacle with female sockets), position count (25), row configuration (2), shell size (3/DB/B), termination method (solder cup), contact material (brass), and contact finish (gold). All substitute parts maintain these fundamental specifications.
Substitutes are grouped into two categories based on mounting type and additional features:
Category 1: Direct Equivalent (Same Mounting Type) Part 5-747913-2 maintains the free hanging in-line mounting configuration of the original 747913-4. This part is manufactured by TE Connectivity under the same AMPLIMITE HD-20 series and represents the active production equivalent with identical mounting characteristics.
Category 2: Functional Alternatives (Different Mounting Type) Parts from NorComp Inc. (172-E series and 772-E series) feature panel mount configurations rather than free hanging in-line mounting. These parts are substitutable when application requirements permit panel mounting installation. The 772-E series provides enhanced ingress protection (IP67) suitable for sealed applications, while 172-E series parts offer standard environmental protection.
Key differentiating parameters among substitutes include: mounting type (free hanging versus panel mount), flange feature configuration (housing/shell unthreaded, cable side, or mating side), shell material finish (blue zinc plated, tin plated, or nickel plated), current rating (3A versus 5A), and ingress protection rating (standard versus IP67).
Parameter Comparison
| Parameter | 747913-4 (Main) | 5-747913-2 | 172-E25-203R001 | 172-E25-203R011 | 172-E25-203R031 | 172-E25-203R911 | 772-E25-203R001 | 772-E25-203R011 |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | TE Connectivity | TE Connectivity | NorComp Inc. | NorComp Inc. | NorComp Inc. | NorComp Inc. | NorComp Inc. | NorComp Inc. |
| 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 |
| Number of Positions | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Shell Size | 3 (DB, B) | 3 (DB, B) | 3 (DB, B) | 3 (DB, B) | 3 (DB, B) | 3 (DB, B) | 3 (DB, B) | 3 (DB, B) |
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount |
| Termination | Solder Cup | Solder Cup | Solder Cup | Solder Cup | Solder Cup | Solder Cup | Solder Cup | Solder Cup |
| Contact Material | Brass | Brass | Brass | Brass | Brass | Brass | Brass | Brass |
| Contact Finish | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold |
| Current Rating (Amps) | 3A | 3A | 5A | 5A | 5A | 5A | 5A | 5A |
| Voltage Rating | 250V | 250V | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | -50°C ~ 100°C | -50°C ~ 100°C | -50°C ~ 100°C | -50°C ~ 100°C | -50°C ~ 100°C | -50°C ~ 100°C |
| Material Flammability | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 |
| Ingress Protection | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | IP67 | IP67 |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active |
| RoHS Compliance | Non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
Primary Recommendation: TE Connectivity 5-747913-2
The 5-747913-2 is the preferred substitute for direct replacement of the obsolete 747913-4. Both parts are manufactured by TE Connectivity within the AMPLIMITE HD-20 series and maintain identical mounting configuration (free hanging in-line). The 5-747913-2 is in active production status with significantly higher inventory availability (3299 pieces versus 797 pieces). This part achieves ROHS3 compliance, addressing regulatory requirements that the original part does not meet. The only material difference is shell finish (tin plated versus blue zinc plated), which does not affect electrical performance or mechanical compatibility. Packaging is supplied in trays for improved handling and storage.
Secondary Recommendations: NorComp 172-E and 772-E Series
NorComp substitutes are applicable when application design permits panel mount installation instead of free hanging in-line mounting. All NorComp parts are in active production status and ROHS3 compliant.
The 172-E series (172-E25-203R001, 172-E25-203R011, 172-E25-203R021, 172-E25-203R031, 172-E25-203R911) provides standard environmental protection with flange configurations suited to various panel mounting scenarios. These parts feature higher current ratings (5A versus 3A) and machined contact forms.
The 772-E series (772-E25-203R001, 772-E25-203R011) offers enhanced ingress protection (IP67 - dust tight, waterproof) from the Seal-D product line, suitable for sealed or harsh environment applications. The 772-E25-203R001 with unthreaded housing/shell flange provides the closest functional equivalent to the original part's mounting characteristics among sealed alternatives.
All substitute parts maintain the core D-Sub 25 position receptacle configuration, solder cup termination, brass contacts with gold finish, and UL94 V-0 flammability rating. Selection among substitutes depends on specific mounting requirements and environmental protection needs of the application.
Frequently Asked Questions (FAQ)
Q: Can the 5-747913-2 be used as a direct replacement for the 747913-4 in existing designs?
A: Yes. The 5-747913-2 maintains identical electrical and mechanical specifications for connector type, position count, shell size, mounting configuration, termination method, and contact materials. The shell finish difference (tin plated versus blue zinc plated) does not affect performance. The primary advantage is active production status and ROHS3 compliance.
Q: What is the key difference between the TE Connectivity 5-747913-2 and the NorComp 172-E and 772-E series substitutes?
A: The primary difference is mounting type. The 5-747913-2 maintains free hanging in-line mounting identical to the original 747913-4. The NorComp 172-E series requires panel mount installation. The 772-E series also requires panel mount but adds IP67 ingress protection for sealed applications. Selection depends on whether the application can accommodate panel mounting.
Q: Are there electrical performance differences between the main part and substitutes?
A: The NorComp substitutes have a higher current rating (5A versus 3A), which represents improved capability rather than incompatibility. Operating temperature ranges differ slightly: the main part and 5-747913-2 support -55°C to 105°C, while NorComp parts support -50°C to 100°C. Applications operating below -50°C require the TE Connectivity parts. Voltage ratings are specified for TE Connectivity parts (250V) but not provided for NorComp parts.
Q: What does ROHS3 compliance mean for these connectors?
A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting use of lead, mercury, cadmium, hexavalent chromium, and certain flame retardants. The original 747913-4 is non-compliant. All substitute parts are ROHS3 compliant, making them suitable for applications with regulatory compliance requirements.
Q: Can I use a panel mount NorComp connector in place of the free hanging TE Connectivity connector?
A: Only if your application design permits panel mount installation. The NorComp 172-E and 772-E series are not compatible with free hanging in-line mounting applications. The 5-747913-2 is the appropriate choice for applications requiring in-line mounting.
Q: What is the difference between the various NorComp 172-E part numbers?
A: The 172-E series parts differ in flange feature configuration: 172-E25-203R001 has unthreaded housing/shell flange; 172-E25-203R011 and 172-E25-203R021 have cable side (4-40) flange; 172-E25-203R031 has mating side (4-40) flange; 172-E25-203R911 includes both cable side and mating side female screwlock (4-40) flanges with board lock feature. Selection depends on specific panel mounting requirements.
Q: Why do the NorComp parts have higher current ratings (5A versus 3A)?
A: Higher current ratings indicate improved contact design and material specifications in the NorComp parts. This represents enhanced capability and does not create incompatibility with applications designed for 3A operation.
Q: Should I choose the 772-E series for all applications?
A: The 772-E series with IP67 ingress protection is appropriate only for applications requiring sealed or waterproof operation. For standard environmental conditions, the 172-E series or 5-747913-2 are suitable and may offer cost advantages. Selection should be based on specific application environmental requirements.
Q: What packaging formats are available for these substitutes?
A: The 5-747913-2 is supplied in trays. The NorComp 172-E and 772-E series are also supplied in trays. Tray packaging provides improved handling, storage, and automated assembly compatibility compared to loose component handling.
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