Request Quote
(Ships tomorrow)
DBMF25P300 D-Sub Plug 25 Position Connector - Equivalent & Substitute Parts
Part Overview
The DBMF25P300 is a 25-position D-Sub plug connector manufactured by Amphenol ICC (FCI) in the DM HE501 series. This through-hole solder-terminated connector features male pins with a DB/B shell size (Size 3) and is rated for 7.5A at 300V. The part is currently active in production with 1027 units in stock.
Substitute parts are necessary when the original DBMF25P300 becomes unavailable, when alternative packaging formats are required, or when design specifications allow for compatible alternatives that meet the same electrical and mechanical requirements. Substitute selection must maintain compatibility across connector style, position count, shell size, termination method, and electrical ratings.
Substiute Parts
Key Parameters
| Parameter | DBMF25P300 Specification |
|---|---|
| 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 |
| Contact Type | Signal |
| Current Rating (Amps) | 7.5A |
| Voltage Rating | 300V |
| Operating Temperature | -55°C ~ 125°C |
| Material Flammability Rating | UL94 V-0 |
| Contact Material | Brass |
| Contact Finish | Gold |
| Shell Material, Finish | Steel, Yellow Cadmium Plated |
| RoHS Status | RoHS non-compliant |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitute parts for the DBMF25P300 are grouped based on strict compatibility across the following critical parameters:
Core Compatibility Requirements:
- 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)
- Contact Type: Signal (mandatory)
- Material Flammability Rating: UL94 V-0 (mandatory)
- Contact Material: Brass (mandatory)
- Contact Finish: Gold (mandatory)
Allowable Variations in Substitutes:
- Current Rating: May be lower than 7.5A (6A acceptable for signal-level applications)
- Voltage Rating: May be lower than 300V (125V acceptable for signal-level applications)
- Operating Temperature: May have narrower range than -55°C ~ 125°C
- Shell Material Finish: May differ (Tin Plated, Nickel Plated acceptable)
- Flange Feature: May include additional features (Screwlock, Board Lock, Grounding Indents)
- Dielectric Material: May vary (Thermoplastic, Polyester, Polyamide acceptable)
- Packaging: May differ (Tray or Tube)
- RoHS Status: May differ (RoHS3 Compliant acceptable)
All substitute parts listed maintain the same D-Sub 25-position plug configuration with solder termination and gold-plated brass contacts suitable for direct replacement in through-hole PCB applications.
Parameter Comparison
| Part Number | Manufacturer | Series | Positions | Shell Size | Termination | Current (A) | Voltage (V) | Temp Range (°C) | Shell Finish | Flange Feature | RoHS Status | Inventory |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DBMF25P300 | Amphenol ICC (FCI) | DM HE501 | 25 | 3 (DB, B) | Solder | 7.5 | 300 | -55 ~ 125 | Steel, Yellow Cadmium | Housing/Shell (Unthreaded) | Non-compliant | 1027 |
| 1-5745968-3 | TE Connectivity AMP | AMPLIMITE HD-20 | 25 | 3 (DB, B) | Solder | 6 | 125 | -55 ~ 105 | Steel, Tin Plated | Mating Side, Female Screwlock (4-40) | ROHS3 Compliant | 1442 |
| 1-5745968-4 | TE Connectivity AMP | AMPLIMITE HD-20 | 25 | 3 (DB, B) | Solder | 6 | 125 | -55 ~ 105 | Steel, Tin Plated | Mating Side, Female Screwlock (4-40) | ROHS3 Compliant | 3136 |
| 1-5745968-5 | TE Connectivity AMP | AMPLIMITE HD-20 | 25 | 3 (DB, B) | Solder | 6 | 125 | -55 ~ 105 | Steel, Tin Plated | Mating Side, Female Screwlock (4-40) | ROHS3 Compliant | 1823 |
| 1-5745968-6 | TE Connectivity AMP | AMPLIMITE HD-20 | 25 | 3 (DB, B) | Solder | 6 | 125 | -55 ~ 105 | Steel, Tin Plated | Mating Side, Female Screwlock (4-40) | RoHS Compliant | 1532 |
| 172-025-112R001 | NorComp Inc. | 172, M Series | 25 | 3 (DB, B) | Solder | 5 | — | -50 ~ 100 | Steel, Tin Plated | Housing/Shell (Unthreaded) | ROHS3 Compliant | 2444 |
| 172-E25-113R911 | NorComp Inc. | 172-E, M Series | 25 | 3 (DB, B) | Solder | 5 | — | -50 ~ 100 | Steel, Nickel Plated | Board Side (4-40); Mating Side, Female Screwlock (4-40) | ROHS3 Compliant | 986 |
| 2-5747704-0 | TE Connectivity AMP | AMPLIMITE HD-20 | 25 | 3 (DB, B) | Solder | 6 | 125 | -55 ~ 105 | Steel, Tin Plated | Housing/Shell (4-40) | ROHS3 Compliant | 3224 |
| 208008-2 | TE Connectivity AMP | AMPLIMITE HD-20 | 25 | 3 (DB, B) | Solder | 6 | 125 | -55 ~ 105 | — | Housing/Shell (Unthreaded) | Not applicable | 942 |
| 5208008-1 | TE Connectivity AMP | AMPLIMITE HD-20 | 25 | 3 (DB, B) | Solder | 6 | 125 | -55 ~ 105 | — | Housing/Shell (Unthreaded) | ROHS3 Compliant | 1523 |
| 5208008-2 | TE Connectivity AMP | AMPLIMITE HD-20 | 25 | 3 (DB, B) | Solder | 6 | 125 | -55 ~ 105 | — | Housing/Shell (Unthreaded) | ROHS3 Compliant | 1523 |
Engineering Selection Recommendations
Primary Substitutes (TE Connectivity AMPLIMITE HD-20 Series):
The TE Connectivity parts 1-5745968-3, 1-5745968-4, 1-5745968-5, 1-5745968-6, 2-5747704-0, 208008-2, 5208008-1, and 5208008-2 are direct functional equivalents. All maintain the 25-position D-Sub plug configuration with solder termination and gold-plated brass contacts. These parts are ROHS3 compliant, addressing regulatory requirements where the original DBMF25P300 does not. Current rating is reduced to 6A and voltage rating to 125V, which is acceptable for signal-level D-Sub applications. Operating temperature range is -55°C to 105°C, narrower than the original but suitable for most industrial and commercial applications.
The 1-5745968 variants include female screwlock features on the mating side, providing enhanced mechanical retention. Part 2-5747704-0 includes board-side locking (4-40) in addition to mating-side screwlock, offering superior mechanical stability in high-vibration environments. Parts 208008-2, 5208008-1, and 5208008-2 feature unthreaded housing shells, matching the original DBMF25P300 flange configuration.
Secondary Substitutes (NorComp 172 Series):
NorComp parts 172-025-112R001 and 172-E25-113R911 provide alternative sourcing from a different manufacturer. Both maintain 25-position D-Sub plug configuration with solder termination. Current rating is 5A, lower than both the original and TE Connectivity alternatives, suitable only for lower-power signal applications. The 172-025-112R001 is obsolete but remains in inventory. The 172-E25-113R911 is active and includes board-side and mating-side locking features with nickel-plated steel shell, providing corrosion resistance in harsh environments.
Compliance Considerations:
For applications requiring RoHS3 compliance, all TE Connectivity and NorComp substitutes are suitable. The original DBMF25P300 is RoHS non-compliant due to yellow cadmium plating. TE Connectivity parts with REACH Affected or Vendor Undefined status require verification against specific supply chain requirements.
Inventory Availability:
TE Connectivity 1-5745968-4 offers the highest inventory (3136 units), followed by 2-5747704-0 (3224 units), providing supply chain security for high-volume applications.
Frequently Asked Questions (FAQ)
Q: Can I use a substitute part with 6A current rating instead of the original 7.5A?
A: Yes, for signal-level D-Sub applications. The 25-position D-Sub connector is primarily used for signal distribution rather than high-current power delivery. A 6A rating is acceptable in applications where the original 7.5A specification was not a critical design requirement. Verify actual circuit current requirements before substitution.
Q: What is the difference between the TE Connectivity 1-5745968 variants (3, 4, 5, 6)?
A: All four variants (1-5745968-3, 1-5745968-4, 1-5745968-5, 1-5745968-6) are electrically and mechanically identical. The numeric suffix indicates different packaging batches or manufacturing dates. RoHS status varies: 1-5745968-3, 1-5745968-5, and 1-5745968-6 are ROHS3 Compliant; 1-5745968-4 status is ROHS3 Compliant with Vendor Undefined REACH status. Select based on compliance documentation requirements and inventory availability.
Q: Is the NorComp 172-E25-113R911 suitable for my application if the original uses 300V rating?
A: The 172-E25-113R911 does not specify a voltage rating in the provided data. For applications requiring 300V isolation or withstand voltage, this part is not recommended. Verify voltage requirements with NorComp technical documentation before substitution. The TE Connectivity alternatives rated at 125V are more appropriate if voltage rating is a design constraint.
Q: What is the difference between unthreaded and screwlock flange features?
A: Unthreaded housing shells (DBMF25P300, 208008-2, 5208008-1, 5208008-2) rely on friction fit or mechanical alignment for mating connector retention. Female screwlock features (1-5745968 series) provide threaded engagement with mating connector backshells, offering positive mechanical locking. Board-side locking (172-E25-113R911, 2-5747704-0) adds retention to the PCB-mounted connector. Select based on application vibration environment and mechanical retention requirements.
Q: Can I substitute the yellow cadmium-plated shell with tin-plated or nickel-plated alternatives?
A: Yes. Tin plating and nickel plating provide equivalent corrosion resistance for most industrial environments. Nickel plating (172-E25-113R911) offers superior corrosion resistance in harsh or marine environments. Yellow cadmium plating is no longer preferred due to environmental and health concerns. All substitute parts with alternative plating finishes are functionally equivalent for shell protection.
Q: Are the TE Connectivity AMPLIMITE HD-20 parts interchangeable with each other?
A: Yes, within the constraints of your application. All AMPLIMITE HD-20 25-position plugs are mechanically and electrically interchangeable. Differences in flange features (screwlock, board lock, unthreaded) affect mechanical retention only. Select based on your PCB mounting and mating connector requirements.
Q: What does "REACH Affected" or "REACH Unaffected" mean for connector selection?
A: REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) compliance status indicates whether the part contains substances of concern under EU regulations. "REACH Affected" parts may require additional documentation for EU supply chains. "REACH Unaffected" or "Vendor Undefined" parts may have fewer regulatory restrictions. Verify REACH status against your supply chain and end-market requirements.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts