FCE17B25SC29B D-Sub 25 Position Receptacle Equivalent & Substitute Parts

Part Overview

The FCE17B25SC29B is a 25 position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This connector features female sockets, right-angle solder termination, and is designed for through-hole mounting applications. The part is currently active in production with 666 units in stock.

D-Sub connectors of this configuration are widely used in industrial, telecommunications, and legacy computing applications where standardized 25-pin signal distribution is required. Equivalent and substitute parts become necessary when the primary manufacturer part is unavailable, when alternative sourcing is required for supply chain optimization, or when design requirements permit functional alternatives with different mechanical or electrical characteristics.

Substiute Parts

FCE17B25SC29B

Amphenol ICC (Commercial Products)In Stock: 762FCE17B25SC29B Datasheet

Current PartRFQ

183-025-213R571

NorComp Inc.In Stock: 2039183-025-213R571 Datasheet

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5747838-3

TE Connectivity AMP ConnectorsIn Stock: 35325747838-3 Datasheet

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5747838-4

TE Connectivity AMP ConnectorsIn Stock: 36735747838-4 Datasheet

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5747838-6

TE Connectivity AMP ConnectorsIn Stock: 11045747838-6 Datasheet

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747838-3

TE Connectivity AMP ConnectorsIn Stock: 1134747838-3 Datasheet

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747838-4

TE Connectivity AMP ConnectorsIn Stock: 954747838-4 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the FCE17B25SC29B is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: D-Sub
• Connector Type: Receptacle, Female Sockets
• Number of Positions: 25
• Number of Rows: 2
• Shell Size, Connector Layout: 3 (DB, B)
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Backset Spacing: 0.590" (14.99mm)

Allowable Variations:

• Current Rating: Substitute parts rated at 6A are acceptable as they exceed the 5A requirement
• Operating Temperature Range: Substitute parts with extended ranges (-55°C ~ 105°C) are acceptable as they encompass the original -40°C ~ 85°C range
• Shell Material Finish: Both tin-plated and nickel-plated finishes are acceptable for D-Sub applications
• Contact Finish Thickness: Variations in gold plating thickness (flash, 15.0µin, 30.0µin) are acceptable
• Flange Feature: Housing/Shell configurations with different screw specifications (4-40 threads) are acceptable
• RoHS Compliance Status: Both RoHS Compliant and ROHS3 Compliant parts are acceptable; RoHS non-compliant parts are listed for reference only

All identified substitute parts meet these criteria and maintain functional compatibility with the original FCE17B25SC29B specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs and Replacements):

The following parts are recommended as direct substitutes based on active product status and full RoHS compliance:

• 5747838-4 (TE Connectivity AMP Connectors): Offers 6A current rating, extended operating temperature range (-55°C ~ 105°C), RoHS Compliant status, and 30.0µin gold contact finish thickness. This part provides enhanced electrical capacity and thermal performance over the original specification.

• 747838-4 (TE Connectivity AMP Connectors): Functionally equivalent to 5747838-4 with RoHS Compliant status. Suitable for applications where the AMPLIMITE HD-20 series designation is acceptable.

• 183-025-213R571 (NorComp Inc.): Provides ROHS3 Compliant status with extended operating temperature range (-55°C ~ 105°C). Offers panel mount capability in addition to through-hole mounting. Nickel-plated shell finish provides alternative corrosion resistance characteristics.

Secondary Substitute (Legacy Applications Only):

• 747838-3 (TE Connectivity AMP Connectors): RoHS non-compliant status restricts use to legacy systems or applications where RoHS compliance is not mandated. Functionally compatible with all mechanical and electrical parameters.

Not Recommended for New Designs:

• 5747838-3 and 5747838-6: While functionally compatible, these variants feature flash gold plating and specialized flange configurations (5747838-6 includes female screwlock) that introduce unnecessary design complexity for standard applications.

All recommended substitutes maintain the critical D-Sub 25-position receptacle configuration, right-angle solder termination, and through-hole mounting compatibility required for direct replacement of the FCE17B25SC29B.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a 6A current rating in place of the original 5A rated connector?

A: Yes. The 6A rated substitute parts (all TE Connectivity variants) exceed the original 5A specification and are electrically compatible. Higher current ratings provide additional design margin and do not create incompatibility with circuits designed for 5A operation.

Q: What is the difference between the TE Connectivity 5747838 and 747838 series parts?

A: Both series are AMPLIMITE HD-20 D-Sub connectors with identical mechanical and electrical specifications. The primary difference is RoHS compliance status: 5747838 series parts are RoHS Compliant, while 747838-3 is RoHS non-compliant. The 747838-4 variant is RoHS Compliant. For new designs, the 5747838 series is preferred.

Q: Are there differences in the gold plating thickness between substitute options?

A: Yes. The original FCE17B25SC29B features 15.0µin (0.38µm) gold plating. Substitute parts offer three options: flash plating (5747838-3, 747838-3), 15.0µin equivalent (none), and 30.0µin (0.76µm) (5747838-4, 5747838-6, 747838-4). Thicker plating (30.0µin) provides enhanced contact durability and corrosion resistance for high-cycle mating applications.

Q: Can the NorComp 183-025-213R571 be used in applications requiring only through-hole mounting?

A: Yes. Although the NorComp part includes panel mount capability as an additional feature, it is fully compatible with through-hole mounting applications. The panel mount feature does not interfere with standard through-hole PCB assembly processes.

Q: What is the significance of the extended operating temperature range in substitute parts?

A: Substitute parts rated for -55°C ~ 105°C operation encompass the original -40°C ~ 85°C range and extend performance capability to more extreme environments. This extended range does not affect compatibility with applications operating within the original temperature specification but provides additional design flexibility for applications requiring broader thermal performance.

Q: Is the nickel-plated shell finish of the NorComp part compatible with tin-plated mating connectors?

A: Yes. Both nickel-plated and tin-plated D-Sub shells are standard finishes for 25-position receptacles and are mechanically and electrically compatible with each other. Shell finish selection is typically driven by corrosion resistance requirements and environmental exposure rather than mating compatibility.

Q: Which substitute part should I select for a new design requiring RoHS compliance?

A: For new designs, select from parts with RoHS Compliant or ROHS3 Compliant status: 5747838-4, 747838-4, or 183-025-213R571. The 747838-3 and 5747838-3 variants should not be used in new designs requiring RoHS compliance.

Q: Are all substitute parts available in the same packaging format as the original?

A: No. The original FCE17B25SC29B packaging is not specified in the provided data. Substitute parts are available in Tray (NorComp 183-025-213R571) and Tube (all TE Connectivity variants) packaging. Packaging selection should be coordinated with procurement and assembly requirements.