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TE Connectivity 747321-4 D-Sub Connector Equivalent & Substitute Parts
Part Overview
The TE Connectivity 747321-4 is a 9-position D-Sub plug connector with male pins, designed for IDC ribbon cable termination in free-hanging in-line applications. This connector is part of the AMPLIMITE HDF-20 series and features a steel shell with gold-plated contacts rated for 1.25A at operating temperatures from -55°C to 105°C.
The 747321-4 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design compatibility, ensure continued component availability, and support system upgrades or repairs where the original part is no longer in production.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Connector Style | D-Sub |
| Connector Type | Plug, Male Pins |
| Number of Positions | 9 |
| Number of Rows | 2 |
| Shell Size, Connector Layout | 1 (DE, E) |
| Mounting Type | Free Hanging (In-Line) |
| Termination | IDC, Ribbon Cable |
| Contact Type | Signal |
| Flange Feature | Housing/Shell (Unthreaded) |
| Shell Material, Finish | Steel |
| Contact Finish | Gold |
| Contact Finish Thickness | 30.0µin (0.76µm) |
| Current Rating (Amps) | 1.25A |
| Material Flammability Rating | UL94 V-0 |
| Operating Temperature | -55°C ~ 105°C |
| Contact Material | Phosphor Bronze |
| Dielectric Material | Thermoplastic |
| Features | Feed Through |
| Color | Black |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the TE Connectivity 747321-4 is determined by strict alignment of the following critical parameters:
Primary Substitution Criteria:
- Connector style: D-Sub
- Connector type: Plug, Male Pins
- Number of positions: 9
- Number of rows: 2
- Shell size and layout: 1 (DE, E)
- Termination method: IDC, Ribbon Cable
- Mounting type: Free Hanging (In-Line)
- Contact type: Signal
- Flange feature: Housing/Shell (Unthreaded)
- Material flammability rating: UL94 V-0
- Moisture sensitivity level: 1 (Unlimited)
Direct Equivalent: The TE Connectivity 1658615-4 is a direct equivalent. It maintains identical connector specifications, mounting configuration, and electrical ratings. The primary distinction is that 1658615-4 is an active product with ROHS3 compliance, whereas 747321-4 is obsolete and RoHS non-compliant.
Similar Substitutes: Parts from Amphenol ICC (G17K series) and 3M (8200 series) provide functional substitution with documented differences in mounting type, contact material, and shell finish. These parts share the core D-Sub 9-position configuration but differ in specific design features such as panel mount capability, grounding indents, and strain relief provisions.
Parameter Comparison
| Parameter | 747321-4 (Main) | 1658615-4 (Direct Equivalent) | G17K09101001EU (Similar) | G17K09103101EU (Similar) | 8209-6000 (Similar) | 8209-6003 (Similar) | 8209-6009 (Similar) | 8209-8000 (Similar) | 8209-8003 (Similar) |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | TE Connectivity | TE Connectivity | Amphenol ICC | Amphenol ICC | 3M | 3M | 3M | 3M | 3M |
| Connector Style | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub | D-Sub |
| Connector Type | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins | Plug, Male Pins |
| Number of Positions | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Number of Rows | 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) |
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) | Free Hanging (In-Line) | Free Hanging (In-Line) | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount |
| Termination | IDC, Ribbon Cable | IDC, Ribbon Cable | IDC, Ribbon Cable | IDC, Ribbon Cable | IDC, Ribbon Cable | IDC, Ribbon Cable | IDC, Ribbon Cable | IDC, Ribbon Cable | IDC, Ribbon Cable |
| Contact Type | Signal | Signal | Signal | Signal | Signal | Signal | Signal | Signal | Signal |
| Flange Feature | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Housing/Shell (4-40) | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Housing/Shell (4-40) |
| Shell Material, Finish | Steel | Not Specified | Steel | Steel | 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 |
| Contact Finish Thickness | 30.0µin (0.76µm) | Not Specified | Not Specified | Not Specified | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) | 30.0µin (0.76µm) |
| Current Rating (Amps) | 1.25A | 1.25A | Not Specified | Not Specified | 1A | 1A | 1A | 1A | 1A |
| 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 |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | Not Specified | Not Specified | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C |
| Contact Material | Phosphor Bronze | Phosphor Bronze | Brass | Brass | Copper Alloy | Copper Alloy | Copper Alloy | Copper Alloy | Copper Alloy |
| Dielectric Material | Thermoplastic | Thermoplastic | Polybutylene Terephthalate (PBT) | Polybutylene Terephthalate (PBT) | Polybutylene Terephthalate (PBT), Polyester, Glass Filled | Polybutylene Terephthalate (PBT), Polyester, Glass Filled | Polybutylene Terephthalate (PBT), Polyester, Glass Filled | Polybutylene Terephthalate (PBT), Polyester, Glass Filled | Polybutylene Terephthalate (PBT), Polyester, Glass Filled |
| Features | Feed Through | Feed Through | Feed Through, Grounding Indents, Strain Relief | Feed Through, Grounding Indents, Strain Relief | Feed Through, Grounding Indents | Feed Through, Grounding Indents | Feed Through, Grounding Indents | Feed Through, Grounding Indents | Feed Through, Grounding Indents |
| Color | Black | Black | Black | Black | Gray | Gray | Gray | Gray | Gray |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | RoHS Compliant | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Direct Equivalent Selection:
The TE Connectivity 1658615-4 is the primary recommended substitute for the obsolete 747321-4. Both parts maintain identical electrical and mechanical specifications for free-hanging in-line D-Sub 9-position connectors with IDC ribbon cable termination. The 1658615-4 is an active product with ROHS3 compliance, providing regulatory alignment for new designs and system upgrades. Current inventory of 1418 units is available.
Alternative Substitutes for Panel Mount Applications:
The 3M 8200 series connectors (8209-6000, 8209-6003, 8209-6009, 8209-8000, 8209-8003) and Amphenol ICC G17K series (G17K09101001EU, G17K09103101EU) are suitable alternatives when panel mount configuration is required instead of free-hanging in-line mounting. These parts share the D-Sub 9-position connector layout, IDC ribbon cable termination, and UL94 V-0 flammability rating. All substitute options are active products with RoHS compliance.
Compliance Considerations:
The original 747321-4 is RoHS non-compliant. All recommended substitutes (1658615-4, G17K series, and 8200 series) are RoHS compliant or ROHS3 compliant, supporting regulatory requirements for current manufacturing and procurement standards.
Current Rating Differences:
The 747321-4 is rated for 1.25A. The TE Connectivity 1658615-4 maintains this 1.25A rating. The 3M 8200 series and Amphenol ICC G17K series are rated for 1A or have unspecified current ratings. Applications requiring the full 1.25A rating should prioritize the 1658615-4 equivalent.
Frequently Asked Questions (FAQ)
Q: Can the TE Connectivity 1658615-4 directly replace the 747321-4 in existing designs?
A: Yes. The 1658615-4 is a direct equivalent with identical connector specifications, mounting configuration, and electrical ratings. Both are 9-position D-Sub plugs with male pins, free-hanging in-line mounting, IDC ribbon cable termination, and 1.25A current rating. The primary difference is product status and RoHS compliance.
Q: What is the key difference between the 747321-4 and the 3M 8200 series substitutes?
A: The primary difference is mounting type. The 747321-4 is configured for free-hanging in-line mounting, while the 3M 8200 series (8209-6000, 8209-6003, 8209-6009, 8209-8000, 8209-8003) are panel mount connectors. Both share the D-Sub 9-position configuration and IDC ribbon cable termination. The 3M series also includes grounding indents and strain relief features not present in the 747321-4.
Q: Are there current rating differences between the 747321-4 and its substitutes?
A: Yes. The 747321-4 is rated for 1.25A. The TE Connectivity 1658615-4 maintains this 1.25A rating. The 3M 8200 series is rated for 1A. The Amphenol ICC G17K series has unspecified current ratings. For applications requiring 1.25A, the 1658615-4 is the appropriate choice.
Q: What contact material differences exist among the substitute options?
A: The 747321-4 uses phosphor bronze contacts. The TE Connectivity 1658615-4 also uses phosphor bronze. The Amphenol ICC G17K series uses brass contacts. The 3M 8200 series uses copper alloy contacts. All options feature gold plating on the contact finish.
Q: Are all substitute parts RoHS compliant?
A: The 747321-4 is RoHS non-compliant. All recommended substitutes are RoHS compliant or ROHS3 compliant. The TE Connectivity 1658615-4 is ROHS3 compliant. The Amphenol ICC G17K series and 3M 8200 series are RoHS compliant or ROHS3 compliant.
Q: What is the difference between the Amphenol ICC G17K09101001EU and G17K09103101EU?
A: Both are 9-position D-Sub plugs with identical connector specifications. The primary difference is the flange feature: G17K09101001EU has an unthreaded housing/shell, while G17K09103101EU has a 4-40 threaded housing/shell. Both include grounding indents and strain relief features.
Q: Can the 747321-4 be used in new designs, or should substitutes be selected?
A: The 747321-4 is obsolete and RoHS non-compliant. New designs should use the TE Connectivity 1658615-4 or other active, RoHS-compliant alternatives. The 1658615-4 provides direct functional equivalence with current product status and regulatory compliance.
Q: What packaging options are available for the substitute parts?
A: The TE Connectivity 1658615-4 is available in bulk packaging. The Amphenol ICC G17K series is available in box or unspecified packaging. The 3M 8200 series is available in tray or bulk packaging. Packaging selection depends on procurement volume and handling requirements.
Q: Are the Amphenol ICC G17K series and 3M 8200 series interchangeable with the 747321-4?
A: These parts are functionally similar but not direct equivalents due to mounting type differences. The 747321-4 is free-hanging in-line; the G17K and 8200 series are panel mount. They share the D-Sub 9-position configuration and IDC ribbon cable termination. Selection depends on the specific mounting requirement of the application.
Q: What is the operating temperature range for all substitute options?
A: The 747321-4 and TE Connectivity 1658615-4 are rated for -55°C to 105°C. The 3M 8200 series is rated for -55°C to 105°C. The Amphenol ICC G17K series has unspecified operating temperature ranges. For applications requiring the full -55°C to 105°C range, the 1658615-4 or 3M 8200 series are appropriate.
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