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FCE17B25SN450 D-Sub 25 Position Receptacle Connector: Equivalent & Substitute Parts
Part Overview
The FCE17B25SN450 is a 25 position D-Sub receptacle connector manufactured by Amphenol ICC, featuring female sockets with vertical through-hole mounting and solder termination. This connector is classified as a D-shaped (DB, B shell size) signal connector with board-side flange mounting. The part is currently active in production with 769 pieces in stock inventory.
D-Sub connectors of this configuration are essential in legacy and industrial applications requiring standardized 25-pin signal distribution. Equivalent and substitute parts become necessary when original stock is unavailable, when alternative mounting configurations are required, or when different shell material finishes are specified for environmental compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Receptacle, Female Sockets |
| Number of Positions | 25 |
| Shell Size / Layout | 3 (DB, B) |
| Mounting Type | Through Hole |
| Termination Method | Solder |
| Current Rating | 5A |
| Operating Temperature Range | -40°C to +85°C |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | RoHS Compliant |
| Contact Finish | Gold |
| Shell Material Finish | Steel, Tin Plated |
Substitute Part Grouping Explanation
Substitution eligibility for the FCE17B25SN450 is determined by the following critical parameters:
Primary Compatibility Criteria:
- Connector type: Receptacle with female sockets
- Position count: 25 positions
- Shell size and layout: 3 (DB, B)
- Termination method: Solder
- Mounting classification: Through hole capability
Secondary Compatibility Considerations:
- Current rating: Minimum 5A (higher ratings are acceptable)
- Operating temperature range: Must encompass or exceed -40°C to +85°C
- Material flammability: UL94 V-0 compliance required
- RoHS compliance status: Must be RoHS compliant or ROHS3 compliant
Substitute parts are grouped into two categories based on mounting configuration differences:
Category A - Board-Side Flange (4-40): Parts with identical board-side mounting feature (172-025-283L011, 172-025-283L021)
Category B - Housing/Shell Unthreaded Flange: Parts with alternative flange configuration (5205738-1, 5205738-3, 5205738-7, 5745187-1, 5745187-3, 5745187-7, 5745187-8)
Category C - Panel Mount Configuration: Parts with panel mount capability (172-025-283L001)
Parameter Comparison
| Part Number | Manufacturer | Positions | Shell Size | Mounting Type | Flange Feature | Current Rating (A) | Operating Temp (°C) | Shell Material Finish | Contact Material | Dielectric Material | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|
| FCE17B25SN450 | Amphenol ICC | 25 | 3 (DB, B) | Through Hole | Board Side (4-40) | 5 | -40 to +85 | Steel, Tin Plated | Phosphor Bronze | Thermoplastic, Glass Filled | RoHS Compliant |
| 172-025-283L001 | NorComp Inc. | 25 | 3 (DB, B) | Panel Mount, Through Hole | Housing/Shell (Unthreaded) | 5 | -50 to +125 | Steel, Nickel Plated | Brass | Polybutylene Terephthalate (PBT) | ROHS3 Compliant |
| 172-025-283L011 | NorComp Inc. | 25 | 3 (DB, B) | Panel Mount, Through Hole | Board Side (4-40) | 5 | -50 to +125 | Steel, Nickel Plated | Brass | Polybutylene Terephthalate (PBT) | ROHS3 Compliant |
| 172-025-283L021 | NorComp Inc. | 25 | 3 (DB, B) | Panel Mount, Through Hole | Board Side (4-40) | 5 | -50 to +125 | Steel, Nickel Plated | Brass | Polybutylene Terephthalate (PBT) | ROHS3 Compliant |
| 5205738-1 | TE Connectivity AMP | 25 | 3 (DB, B) | Through Hole | Housing/Shell (Unthreaded) | 6 | -55 to +105 | Steel, Yellow Chromate Plated Zinc | Phosphor Bronze | Polyamide (PA), Nylon, Glass Filled | ROHS3 Compliant |
| 5205738-3 | TE Connectivity AMP | 25 | 3 (DB, B) | Through Hole | Housing/Shell (Unthreaded) | 6 | -55 to +105 | Steel, Yellow Chromate Plated Zinc | Phosphor Bronze | Polyamide (PA), Nylon, Glass Filled | RoHS Compliant |
| 5205738-7 | TE Connectivity AMP | 25 | 3 (DB, B) | Through Hole | Housing/Shell (Unthreaded) | 6 | -55 to +105 | Steel, Yellow Chromate Plated Zinc | Phosphor Bronze | Polyamide (PA), Nylon, Glass Filled | ROHS3 Compliant |
| 5745187-1 | TE Connectivity AMP | 25 | 3 (DB, B) | Through Hole | Housing/Shell (Unthreaded) | 6 | -55 to +105 | Steel, Tin Plated | Phosphor Bronze | Polyamide (PA), Nylon, Glass Filled | RoHS Compliant |
| 5745187-3 | TE Connectivity AMP | 25 | 3 (DB, B) | Through Hole | Housing/Shell (Unthreaded) | 6 | -55 to +105 | Steel, Tin Plated | Phosphor Bronze | Polyamide (PA), Nylon, Glass Filled | ROHS3 Compliant |
| 5745187-7 | TE Connectivity AMP | 25 | 3 (DB, B) | Through Hole | Housing/Shell (Unthreaded) | 6 | -55 to +105 | Steel, Tin Plated | Phosphor Bronze | Polyamide (PA), Nylon, Glass Filled | ROHS3 Compliant |
| 5745187-8 | TE Connectivity AMP | 25 | 3 (DB, B) | Through Hole | Housing/Shell (Unthreaded) | 6 | -55 to +105 | Steel, Tin Plated | Phosphor Bronze | Polyamide (PA), Nylon, Glass Filled | RoHS Compliant |
Engineering Selection Recommendations
Direct Substitutes (Highest Compatibility):
The TE Connectivity AMPLIMITE HDP-20 series parts (5745187-1, 5745187-3, 5745187-7, 5745187-8) provide the closest functional equivalence to FCE17B25SN450. These parts maintain identical shell size, position count, mounting classification, and contact material (phosphor bronze). The tin-plated steel shell finish matches the original specification. Current rating is increased to 6A, which exceeds the 5A requirement. Operating temperature range (-55°C to +105°C) encompasses the original specification. All variants carry active product status with RoHS or ROHS3 compliance.
Alternative Substitutes (Functional Equivalence with Configuration Differences):
The NorComp 172-025 series (172-025-283L011, 172-025-283L021) offers board-side flange mounting identical to FCE17B25SN450. These parts maintain 25-position configuration and 5A current rating. Operating temperature range extends to -50°C to +125°C. Shell material is nickel-plated steel with brass contacts. Dielectric material is PBT rather than glass-filled thermoplastic. ROHS3 compliance is confirmed. These parts are suitable where nickel plating and brass contact materials are acceptable.
Panel Mount Option:
The NorComp 172-025-283L001 provides panel mount capability in addition to through-hole mounting. This part is applicable where connector installation requires panel-facing orientation. Electrical and thermal specifications match the 172-025-283L011 and 172-025-283L021 variants.
TE Connectivity Alternative (Different Shell Finish):
The 5205738 series (5205738-1, 5205738-3, 5205738-7) offers yellow chromate-plated zinc shell finish as an alternative to tin plating. These parts maintain phosphor bronze contacts and identical position/shell size specifications. Current rating is 6A with operating temperature range of -55°C to +105°C. This variant is applicable where chromate plating provides superior corrosion resistance for specific environmental conditions.
Frequently Asked Questions (FAQ)
Q: Can 5745187-1 directly replace FCE17B25SN450 in existing designs?
A: Yes. Both parts share identical shell size (3/DB-B), position count (25), mounting type (through hole), and contact material (phosphor bronze). The 5745187-1 has a higher current rating (6A vs. 5A) and extended operating temperature range (-55°C to +105°C vs. -40°C to +85°C), making it functionally compatible. The tin-plated steel shell finish is identical.
Q: What is the difference between the NorComp 172-025-283L011 and 172-025-283L021?
A: Both parts are electrically and mechanically identical. The difference is in packaging: 172-025-283L011 and 172-025-283L021 are supplied in trays with different inventory levels (740 and 884 pieces respectively). Selection between these variants depends on packaging requirements and availability.
Q: Why do some substitutes have higher current ratings (6A vs. 5A)?
A: Higher current ratings indicate the connector can safely handle greater electrical load. A 6A-rated connector is suitable for applications requiring 5A or less. The higher rating does not affect compatibility; it provides additional design margin.
Q: Are NorComp parts with nickel-plated shells compatible with tin-plated applications?
A: Nickel-plated and tin-plated shells are both acceptable for D-Sub connectors in standard applications. Selection depends on environmental exposure and corrosion resistance requirements. Nickel plating provides enhanced corrosion resistance in humid or salt-spray environments. Tin plating is standard for general industrial use.
Q: What is the significance of the flange feature difference (Board Side vs. Housing/Shell)?
A: Flange feature determines mounting orientation and mechanical interface. Board-side flange (4-40) mounts perpendicular to the PCB with threaded fastening. Housing/shell unthreaded flange mounts with the connector body parallel to the PCB. Selection depends on available PCB space and mechanical design constraints.
Q: Can I use 172-025-283L001 (panel mount) in place of FCE17B25SN450 (board mount)?
A: The 172-025-283L001 supports both panel mount and through-hole mounting. It is electrically and mechanically compatible with FCE17B25SN450 for through-hole applications. Panel mount capability provides additional flexibility but does not affect through-hole compatibility.
Q: Are all substitute parts RoHS compliant?
A: Yes. FCE17B25SN450 is RoHS Compliant. All listed substitutes carry either RoHS Compliant or ROHS3 Compliant status, confirming compliance with hazardous substance restrictions.
Q: What is the difference between RoHS and ROHS3 compliance?
A: Both designations confirm compliance with RoHS (Restriction of Hazardous Substances) regulations. ROHS3 represents the current regulatory standard. Both are acceptable for applications requiring RoHS compliance.
Q: Which substitute offers the widest operating temperature range?
A: The NorComp 172-025 series (172-025-283L001, 172-025-283L011, 172-025-283L021) offers the widest operating temperature range of -50°C to +125°C, compared to FCE17B25SN450 at -40°C to +85°C. This extended range is suitable for applications with extreme temperature exposure.
Q: Can I mix different substitute parts in the same assembly?
A: All listed substitutes are functionally equivalent for 25-position D-Sub receptacle applications. However, assembly consistency is recommended. If mixing different manufacturers or variants, confirm that mechanical interfaces (flange type, mounting holes) are compatible with the PCB or panel design.
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