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TE Connectivity 1-1634220-2 D-Sub Plug 25 Position Equivalent & Substitute Parts
Part Overview
The TE Connectivity 1-1634220-2 is a 25 Position D-Sub Plug connector with vertical solder termination, belonging to the AMPLIMITE HD-20 series. This connector features male pins, through-hole mounting, and a DB/B shell size (Shell Size 3). The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing applications and new designs.
Due to its obsolete status, sourcing direct replacements or functionally equivalent alternatives is essential for system maintenance, repair, and production continuity. Substitute parts must maintain compatibility across electrical ratings, mechanical dimensions, and termination methods.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Style | D-Sub |
| Connector Type | Plug, Male Pins |
| Number of Positions | 25 |
| Number of Rows | 2 |
| Shell Size, Connector Layout | 3 (DB, B) |
| Mounting Type | Through Hole |
| Termination | Solder |
| Voltage Rating | 250V |
| Current Rating (Amps) | 3A |
| Operating Temperature | -55°C ~ 105°C |
| Shell Material, Finish | Steel, Nickel Plated |
| Contact Finish | Gold |
| Contact Material | Brass |
| Flange Feature | Housing/Shell (4-40) |
| Features | Board Lock, Grounding Indents |
| Material Flammability Rating | UL94 V-0 |
| Dielectric Material | Thermoplastic |
| Color | Black |
Substitute Part Grouping Explanation
Substitution eligibility for the TE Connectivity 1-1634220-2 is determined by the following critical parameters:
Primary Compatibility Criteria:
- Connector Style: D-Sub (mandatory)
- Connector Type: Plug, Male Pins (mandatory)
- Number of Positions: 25 (mandatory)
- Number of Rows: 2 (mandatory)
- Shell Size, Connector Layout: 3 (DB, B) (mandatory)
- Mounting Type: Through Hole (mandatory)
- Termination: Solder (mandatory)
Secondary Compatibility Criteria:
- Voltage Rating: 250V or higher
- Current Rating: 3A or higher per contact
- Operating Temperature Range: Must encompass -55°C to 105°C
- Material Flammability Rating: UL94 V-0
- Contact Type: Signal
Substitute parts are grouped into two categories:
Direct Substitutes (Functionally Equivalent): Parts meeting all primary and secondary criteria with identical or superior electrical and thermal specifications. These parts are interchangeable without design modification.
Similar Substitutes (Functionally Compatible): Parts meeting all primary criteria but with variations in secondary parameters such as shell finish, contact finish thickness, dielectric material composition, or flange feature type. These parts require engineering evaluation for specific application requirements.
Parameter Comparison
| Parameter | 1-1634220-2 (Main) | 2301835-1 | 09643227245 | 172-025-112R021 | 627-025-220-047 |
|---|---|---|---|---|---|
| Manufacturer | TE Connectivity AMP | TE Connectivity AMP | HARTING | NorComp Inc. | Mercury United Electronics |
| Connector Style | 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 |
| Number of Positions | 25 | 25 | 25 | 25 | 25 |
| Number of Rows | 2 | 2 | 2 | 2 | 2 |
| Shell Size, Connector Layout | 3 (DB, B) | 3 (DB, B) | 3 (DB, B) | 3 (DB, B) | 3 (DB, B) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Panel Mount, Through Hole | Through Hole |
| Termination | Solder | Solder | Solder | Solder | Solder |
| Voltage Rating | 250V | 250V | 100V | Not Specified | Not Specified |
| Current Rating (Amps) | 3A | 1.5A | 7.5A | 5A | 3A per Contact |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 125°C | -50°C ~ 100°C | -55°C ~ 85°C |
| Shell Material, Finish | Steel, Nickel Plated | Steel, Tin-Nickel Plated | Steel, Tin Plated | Steel, Tin Plated | Steel, Nickel Plated |
| Contact Finish | Gold | Gold | Not Specified | Gold | Gold |
| Contact Material | Brass | Brass | Copper Alloy | Brass | Brass |
| Flange Feature | Housing/Shell (4-40) | Board Side (4-40) | Board Side (4-40) | Board Side (4-40) | Board Side (4-40) |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 |
| Dielectric Material | Thermoplastic | Polybutylene Terephthalate (PBT), Glass Filled | Polycyclohexylenedimethylene Terephthalate (PCT), Glass Filled | Polybutylene Terephthalate (PBT), Polyester | Polyester Thermoplastic |
| Features | Board Lock, Grounding Indents | Board Lock, Grounding Indents | Board Lock, Filter, Grounding Indents | Grounding Indents | Board Lock, Grounding Indents, Shielded |
| Product Status | Obsolete | Active | Active | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
TE Connectivity 2301835-1 (Direct Substitute - Preferred)
The TE Connectivity 2301835-1 is the primary recommended substitute for the 1-1634220-2. Both parts are manufactured by TE Connectivity AMP Connectors within the AMPLIMITE HD-20 series. The 2301835-1 maintains identical mechanical compatibility (25 positions, 2 rows, Shell Size 3 DB/B, through-hole solder termination) and electrical specifications (250V, -55°C to 105°C operating range, UL94 V-0 flammability rating). The 2301835-1 is currently in active production status with 1865 units in stock, ensuring long-term availability. The primary difference is a reduced current rating of 1.5A per contact compared to 3A for the original part; this reduction must be evaluated against application requirements. The 2301835-1 is ROHS3 compliant, addressing regulatory requirements for new designs.
Mercury United Electronics 627-025-220-047 (Compatible Substitute)
The Mercury United Electronics 627-025-220-047 provides functional compatibility with identical mechanical specifications and maintains the 3A current rating per contact. This part is active in production with 924 units in stock. The 627-025-220-047 features nickel-plated steel shell and gold contact finish, matching the original part's material specifications. Operating temperature range is -55°C to 85°C, which does not fully encompass the original part's upper limit of 105°C. The 627-025-220-047 includes shielding features and is ROHS3 compliant. This part is suitable for applications where the reduced upper operating temperature limit is acceptable.
HARTING 09643227245 (Compatible Substitute - Higher Current Rating)
The HARTING 09643227245 meets all primary mechanical compatibility criteria with a higher current rating of 7.5A per contact. This part is active in production with 695 units in stock and is ROHS3 compliant. The voltage rating is specified at 100V, which is lower than the original part's 250V rating. The operating temperature range extends to 125°C, exceeding the original part's upper limit. This part includes filter features in addition to board lock and grounding indents. The 09643227245 is suitable for applications requiring higher current capacity but must be evaluated for voltage rating compatibility.
NorComp Inc. 172-025-112R021 (Compatible Substitute - Obsolete Status)
The NorComp Inc. 172-025-112R021 provides mechanical compatibility with a 5A current rating. This part is classified as obsolete, limiting its suitability for new designs or long-term production. The operating temperature range is -50°C to 100°C, which does not fully encompass the original part's lower limit of -55°C. The 172-025-112R021 is ROHS3 compliant and includes panel mount capability in addition to through-hole mounting. This part is not recommended for new applications due to obsolete status.
Mercury United Electronics 627-025-220-041, 627-025-220-042, 627-025-220-043, 627-025-220-046, 627-025-220-048, 627-025-228-041 (Compatible Substitutes)
These Mercury United Electronics parts from the 627 (Metal) series provide mechanical compatibility with the original part. Detailed electrical specifications are not fully provided in the available data. These parts are active in production with inventory ranging from 664 to 924 units. These parts are suitable for applications where detailed electrical specifications can be cross-referenced with Mercury United Electronics technical documentation.
Frequently Asked Questions (FAQ)
Q: Can the TE Connectivity 2301835-1 be used as a direct replacement for the 1-1634220-2 in all applications?
A: The 2301835-1 is mechanically and electrically compatible with the 1-1634220-2 for most applications. The primary consideration is the reduced current rating of 1.5A per contact compared to 3A for the original part. Applications requiring the full 3A current capacity per contact must evaluate alternative substitutes such as the Mercury United Electronics 627-025-220-047 or HARTING 09643227245.
Q: What is the significance of the flange feature difference between Housing/Shell and Board Side?
A: The flange feature determines the mounting interface. The original 1-1634220-2 uses a Housing/Shell flange (4-40), while most substitutes use a Board Side flange (4-40). Both configurations use 4-40 fastening, but the mounting orientation and board interface differ. The Housing/Shell configuration mounts to the connector shell, while the Board Side configuration mounts directly to the printed circuit board. This difference requires verification of the application's mechanical mounting design.
Q: Are all substitute parts RoHS compliant?
A: The original 1-1634220-2 is RoHS non-compliant. All recommended substitutes (2301835-1, 09643227245, 172-025-112R021, and 627-025-220-047) are ROHS3 compliant. For applications subject to RoHS regulations, any of these substitutes satisfy compliance requirements.
Q: What is the impact of operating temperature range differences?
A: The original 1-1634220-2 operates from -55°C to 105°C. The TE Connectivity 2301835-1 matches this range exactly. The Mercury United Electronics 627-025-220-047 operates to 85°C maximum, limiting its use in applications requiring operation above 85°C. The HARTING 09643227245 extends to 125°C, exceeding the original specification. The NorComp 172-025-112R021 operates to 100°C, not fully encompassing the original lower limit of -55°C. Application temperature requirements must be verified against each substitute's specifications.
Q: Can the HARTING 09643227245 be used despite its lower voltage rating of 100V?
A: The HARTING 09643227245 has a voltage rating of 100V compared to the original part's 250V. This part is suitable only for applications where the system voltage does not exceed 100V. Applications requiring 250V operation must use substitutes with equivalent or higher voltage ratings, such as the TE Connectivity 2301835-1 or Mercury United Electronics 627-025-220-047.
Q: What packaging options are available for these substitutes?
A: The TE Connectivity 2301835-1 is supplied in Tray packaging. The Mercury United Electronics 627-025-220-047 is supplied in Tube packaging. The HARTING 09643227245 is supplied in Bulk packaging. The NorComp 172-025-112R021 is supplied in Tray packaging. Packaging selection may impact handling, storage, and integration into production workflows.
Q: Are there any feature differences that affect functionality?
A: The original 1-1634220-2 includes Board Lock and Grounding Indents features. The TE Connectivity 2301835-1 maintains these features. The Mercury United Electronics 627-025-220-047 adds Shielding in addition to Board Lock and Grounding Indents. The HARTING 09643227245 includes Filter features along with Board Lock and Grounding Indents. The NorComp 172-025-112R021 includes only Grounding Indents. Additional features such as shielding and filtering may provide benefits for noise-sensitive applications but are not required for basic functional compatibility.
Q: What is the difference between Nickel Plated and Tin-Nickel Plated shell finishes?
A: The original 1-1634220-2 uses Steel with Nickel Plating. The TE Connectivity 2301835-1 uses Steel with Tin-Nickel Plating, which provides enhanced corrosion resistance compared to nickel plating alone. The Mercury United Electronics 627-025-220-047 uses Nickel Plating, matching the original specification. The HARTING 09643227245 and NorComp 172-025-112R021 use Tin Plating. Shell finish selection affects corrosion resistance and environmental durability. For applications in corrosive environments, Tin-Nickel Plating provides superior protection.
Q: How do contact material differences affect performance?
A: The original 1-1634220-2 uses Brass contacts with Gold finish. Most substitutes (2301835-1, 172-025-112R021, 627-025-220-047) maintain Brass contacts with Gold finish. The HARTING 09643227245 uses Copper Alloy contacts without specified finish. Brass with gold finish provides excellent corrosion resistance and electrical conductivity. Copper alloy contacts offer different electrical and mechanical properties that may be suitable for specific applications but require verification against application requirements.
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