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TE Connectivity 747912-5 D-Sub Connector Equivalent & Substitute Parts
Part Overview
The TE Connectivity 747912-5 is a 25-position D-Sub plug connector with male pins, designed for signal applications requiring solder cup termination. This connector belongs to the AMPLIMITE HD-20 series and features a tin-plated steel shell with gold-plated brass contacts. The part is classified as obsolete, making identification of active equivalent components essential for ongoing procurement and system maintenance. Substitute parts must maintain identical electrical and mechanical specifications to ensure direct compatibility in existing applications.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Manufacturer Part Number | 747912-5 |
| Manufacturer | TE Connectivity AMP Connectors |
| Connector Type | Plug, Male Pins |
| Number of Positions | 25 |
| Shell Size | 3 (DB, B) |
| Termination Method | Solder Cup |
| Current Rating | 3A |
| Voltage Rating | 250V |
| Operating Temperature Range | -55°C to 105°C |
| Shell Material & Finish | Steel, Tin Plated |
| Contact Material & Finish | Brass, Gold Plated (30.0µin) |
| Dielectric Material | Polybutylene Terephthalate (PBT), Glass Filled |
| Flange Feature | Housing/Shell (Unthreaded) |
| Mounting Type | Free Hanging (In-Line) |
| Flammability Rating | UL94 V-0 |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 747912-5 is determined by strict equivalence across all electrical and mechanical parameters. The primary substitute part, 5-747912-5, maintains identical specifications in the following critical areas:
Electrical Parameters:
- 25-position configuration with 2-row layout
- 3A current rating
- 250V voltage rating
- Gold-plated brass contacts with 30.0µin thickness
- Signal contact type
Mechanical Parameters:
- D-Sub connector style with shell size 3 (DB, B)
- Male pin plug configuration
- Solder cup termination
- Tin-plated steel shell
- Unthreaded housing/shell flange
- Free hanging in-line mounting
- PBT glass-filled dielectric material
- Grounding indents feature
Environmental Parameters:
- Operating temperature range: -55°C to 105°C
- UL94 V-0 flammability rating
- Moisture Sensitivity Level 1
The substitute part 5-747912-5 differs only in product status (active versus obsolete) and packaging format (tray versus unspecified), with no impact on functional compatibility or electrical performance.
Parameter Comparison
| Parameter | 747912-5 (Main Part) | 5-747912-5 (Substitute) | Match Status |
|---|---|---|---|
| Manufacturer | TE Connectivity AMP Connectors | TE Connectivity AMP Connectors | Identical |
| Series | AMPLIMITE HD-20 | AMPLIMITE HD-20 | Identical |
| Connector Type | Plug, Male Pins | Plug, Male Pins | Identical |
| Number of Positions | 25 | 25 | Identical |
| Number of Rows | 2 | 2 | Identical |
| Shell Size, Connector Layout | 3 (DB, B) | 3 (DB, B) | Identical |
| Termination | Solder Cup | Solder Cup | Identical |
| Shell Material, Finish | Steel, Tin Plated | Steel, Tin Plated | Identical |
| Contact Finish | Gold | Gold | Identical |
| Contact Finish Thickness | 30.0µin (0.76µm) | 30.0µin (0.76µm) | Identical |
| Current Rating (Amps) | 3A | 3A | Identical |
| Voltage Rating | 250V | 250V | Identical |
| Color | Black | Black | Identical |
| Dielectric Material | Polybutylene Terephthalate (PBT), Glass Filled | Polybutylene Terephthalate (PBT), Glass Filled | Identical |
| Contact Material | Brass | Brass | Identical |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | Identical |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | Identical |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Identical |
| Mounting Type | Free Hanging (In-Line) | Free Hanging (In-Line) | Identical |
| Flange Feature | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Identical |
| Features | Grounding Indents | Grounding Indents | Identical |
| Product Status | Obsolete | Active | Different |
| RoHS Status | RoHS non-compliant | RoHS Compliant | Different |
| Packaging | Not specified | Tray | Different |
Engineering Selection Recommendations
The 747912-5 is classified as obsolete, necessitating transition to an active equivalent for new procurement and long-term supply chain continuity. The substitute part 5-747912-5 is the direct functional equivalent, maintaining 100% electrical and mechanical compatibility across all specified parameters.
Selection Basis:
The 5-747912-5 substitute is recommended based on the following engineering criteria:
-
Product Status: The substitute part carries active product status, ensuring ongoing manufacturer support and availability, whereas the main part is obsolete.
-
Compliance Enhancement: The substitute part is RoHS compliant, meeting current regulatory requirements for electronic components in many jurisdictions. The main part is RoHS non-compliant.
-
Functional Equivalence: All electrical parameters (current rating, voltage rating, contact specifications) and mechanical parameters (connector type, position count, shell size, termination method, mounting configuration) are identical between the main part and substitute.
-
Environmental Specifications: Both parts maintain identical operating temperature ranges (-55°C to 105°C), flammability ratings (UL94 V-0), and moisture sensitivity levels (MSL 1).
-
Packaging Consideration: The substitute part is supplied in tray packaging, which is standard for active production components and facilitates automated assembly processes.
For applications requiring the 747912-5, the 5-747912-5 provides direct substitution without design modification or performance compromise.
Frequently Asked Questions (FAQ)
Q: Can the 5-747912-5 be used as a direct replacement for the 747912-5 in existing designs?
A: Yes. The 5-747912-5 is electrically and mechanically identical to the 747912-5 across all specified parameters, including connector type, position count, current and voltage ratings, contact materials and finishes, operating temperature range, and flammability rating. Direct substitution is supported without design changes.
Q: What is the difference between the 747912-5 and 5-747912-5?
A: The primary differences are product status and compliance certification. The 747912-5 is obsolete and RoHS non-compliant, while the 5-747912-5 is an active product that is RoHS compliant. The 5-747912-5 is also supplied in tray packaging. All electrical and mechanical specifications are identical.
Q: Why is the 747912-5 marked as obsolete?
A: The 747912-5 has been superseded by the 5-747912-5 in the manufacturer's product line. The substitute part offers improved compliance status and active production support while maintaining full functional equivalence.
Q: Are there any compatibility concerns when switching from 747912-5 to 5-747912-5?
A: No compatibility concerns exist. Both parts are 25-position D-Sub plugs with male pins, solder cup termination, identical shell sizes, and matching electrical ratings. Pin configuration, contact materials, and mechanical mounting are identical.
Q: Does the RoHS compliance difference affect performance?
A: RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both parts meet identical electrical specifications and operating requirements. The RoHS-compliant 5-747912-5 is preferred for applications subject to RoHS regulations.
Q: What is the significance of the packaging difference (tray versus unspecified)?
A: Tray packaging is standard for active production components and facilitates automated assembly and handling. This does not affect the connector's electrical or mechanical performance, only logistics and manufacturing processes.
Q: Can the 747912-5 still be used if inventory is available?
A: Existing inventory of the 747912-5 can be used in applications where RoHS non-compliance is acceptable. However, for new designs or long-term supply chain planning, transition to the 5-747912-5 is recommended to ensure ongoing availability and regulatory compliance.
Q: Are both parts from the same AMPLIMITE HD-20 series?
A: Yes. Both the 747912-5 and 5-747912-5 belong to the TE Connectivity AMPLIMITE HD-20 series, confirming their design lineage and compatibility.
Q: What are the key parameters that determine substitution eligibility?
A: Substitution eligibility is determined by equivalence in connector type (plug, male pins), position count (25), shell size (3/DB-B), termination method (solder cup), current rating (3A), voltage rating (250V), contact materials and finishes, operating temperature range (-55°C to 105°C), and flammability rating (UL94 V-0). The 5-747912-5 matches all these parameters.
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