FCE17B25SN410 D-Sub 25-Position Receptacle Connector: Equivalent & Substitute Parts

Part Overview

The FCE17B25SN410 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 an active product with 686 units in current inventory. D-Sub connectors of this configuration are essential components in legacy and industrial equipment requiring standardized signal transmission interfaces. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and termination methods to ensure functional interchangeability in circuit applications.

Key Parameters

Parameter	FCE17B25SN410 Specification
Connector Type	Receptacle, Female Sockets
Number of Positions	25
Number of Rows	2
Shell Size / Layout	3 (DB, B)
Mounting Type	Through Hole
Termination Method	Solder
Current Rating	5A
Operating Temperature Range	-40°C to +85°C
Contact Finish	Gold
Shell Material / Finish	Steel, Tin Plated
Flange Feature	Board Side (4-40)
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the FCE17B25SN410 is determined by the following critical parameters:

Primary Compatibility Criteria:

Connector type: Receptacle with female sockets
Position count: 25 positions in 2-row configuration
Shell size and layout: DB/B size (Shell Size 3)
Mounting method: Through-hole capability
Termination: Solder connection
Contact finish: Gold plating
Flammability rating: UL94 V-0 minimum

Secondary Compatibility Factors:

Current rating: Minimum 5A (higher ratings acceptable)
Operating temperature: Must encompass or exceed -40°C to +85°C range
RoHS compliance status: Active product requirement

Substitute parts are grouped into two categories based on mounting configuration:

Category A – Board-Side Flange (4-40 Mounting): NorComp 172-025-283L011 and 172-025-283L021 provide direct mechanical and electrical equivalence with identical flange positioning.

Category B – Housing/Shell Unthreaded Flange: TE Connectivity AMPLIMITE HDP-20 series (5205738-1, 5205738-3, 5205738-7, 5745187-1, 5745187-3, 5745187-7, 5745187-8) and NorComp 172-025-283L001 feature alternative flange designs suitable for applications where board-side mounting is not required.

All listed substitutes maintain 25-position, 2-row DB/B configuration with solder termination and gold contact finish, ensuring signal integrity and mechanical fit compatibility.

Parameter Comparison

Parameter	FCE17B25SN410 (Amphenol ICC)	172-025-283L001 (NorComp)	172-025-283L011 (NorComp)	172-025-283L021 (NorComp)	5205738-1 (TE Connectivity)	5745187-1 (TE Connectivity)
Connector Type	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets
Number of Positions	25	25	25	25	25	25
Number of Rows	2	2	2	2	2	2
Shell Size / Layout	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)
Mounting Type	Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Flange Feature	Board Side (4-40)	Housing/Shell (Unthreaded)	Board Side (4-40)	Board Side (4-40)	Housing/Shell (Unthreaded)	Housing/Shell (Unthreaded)
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness	15.0µin (0.38µm)	Flash	Flash	Flash	Not Specified	Flash
Shell Material / Finish	Steel, Tin Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Yellow Chromate Plated Zinc	Steel, Tin Plated
Current Rating (Amps)	5A	5A	5A	5A	6A	6A
Voltage Rating	Not Specified	Not Specified	Not Specified	Not Specified	125V	125V
Operating Temperature Range	-40°C to +85°C	-50°C to +125°C	-50°C to +125°C	-50°C to +125°C	-55°C to +105°C	-55°C to +105°C
Contact Material	Phosphor Bronze	Brass	Brass	Brass	Phosphor Bronze	Phosphor Bronze
Dielectric Material	Thermoplastic, Glass Filled	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polyamide (PA), Nylon, Glass Filled	Polyamide (PA), Nylon, Glass Filled
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Not Applicable	Not Applicable	Not Applicable	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalents (Preferred for Drop-In Replacement):

The NorComp 172-025-283L011 and 172-025-283L021 connectors provide the closest functional equivalence to the FCE17B25SN410. Both parts maintain identical 25-position, 2-row DB/B configuration with board-side 4-40 flange mounting, solder termination, and gold contact finish. These NorComp variants are ROHS3 compliant and rated for extended operating temperature ranges (-50°C to +125°C), exceeding the original specification. Current inventory levels (740 and 884 units respectively) support immediate procurement.

Alternative Substitutes (Functional Compatibility with Configuration Differences):

The TE Connectivity AMPLIMITE HDP-20 series (5205738-1, 5205738-3, 5205738-7, 5745187-1, 5745187-3, 5745187-7, 5745187-8) and NorComp 172-025-283L001 are functionally compatible substitutes featuring housing/shell unthreaded flanges instead of board-side mounting. These parts maintain all critical electrical parameters: 25 positions, 2 rows, DB/B shell size, solder termination, and gold contact finish. TE Connectivity variants provide 6A current rating (exceeding the 5A requirement) and 125V voltage rating specification. All listed TE Connectivity parts are RoHS or ROHS3 compliant with MSL 1 rating. NorComp 172-025-283L001 is ROHS3 compliant with extended temperature range (-50°C to +125°C).

Compliance Verification:

All substitute parts maintain UL94 V-0 flammability rating and are classified as active products. RoHS compliance status varies between RoHS Compliant and ROHS3 Compliant designations; both statuses satisfy current regulatory requirements. REACH compliance information is documented for each part number where applicable.

Frequently Asked Questions (FAQ)

Q1: Can NorComp 172-025-283L011 directly replace FCE17B25SN410 without PCB layout modifications?

A: Yes. The 172-025-283L011 maintains identical board-side 4-40 flange positioning, 25-position 2-row DB/B configuration, and solder termination. Mechanical and electrical compatibility is direct. No PCB layout changes are required.

Q2: What is the difference between board-side flange (4-40) and housing/shell unthreaded flange mounting?

A: Board-side flange (4-40) connectors mount directly to the PCB with threaded fasteners through the flange holes. Housing/shell unthreaded flange connectors mount to a panel or enclosure without threaded fastener holes on the connector body. Selection depends on the mechanical mounting structure of your application.

Q3: Are TE Connectivity 5745187 series connectors compatible with applications designed for FCE17B25SN410?

A: Electrical and signal compatibility is confirmed. All 5745187 variants maintain 25-position, 2-row DB/B configuration with solder termination and gold contact finish. However, the housing/shell unthreaded flange differs from the board-side 4-40 flange of the original part. Mechanical mounting compatibility must be verified based on your specific enclosure or panel design.

Q4: What is the significance of contact finish thickness differences (15.0µin vs. Flash)?

A: Contact finish thickness is specified in the provided data. The FCE17B25SN410 specifies 15.0µin (0.38µm) gold plating, while NorComp and most TE Connectivity substitutes specify flash gold plating. Both finishes provide electrical conductivity and corrosion resistance. Flash plating is a thinner application suitable for signal-level applications. Thickness differences do not affect functional compatibility for standard D-Sub signal transmission.

Q5: Can I substitute a TE Connectivity part with 6A current rating for a 5A-rated application?

A: Yes. Higher current ratings provide design margin and are functionally compatible. The 6A rating of TE Connectivity AMPLIMITE HDP-20 series exceeds the 5A requirement of the FCE17B25SN410, ensuring adequate current-carrying capacity for your application.

Q6: What is the difference between RoHS Compliant and ROHS3 Compliant designations?

A: Both designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents the current EU RoHS Directive 2011/65/EU as amended. RoHS Compliant indicates compliance with the original or earlier RoHS standards. Both statuses satisfy current procurement requirements for restricted substance compliance.

Q7: Are NorComp 172-025-283L001, 172-025-283L011, and 172-025-283L021 interchangeable with each other?

A: All three NorComp parts share identical electrical specifications (25 positions, 2 rows, DB/B size, solder termination, gold contact finish, 5A rating, UL94 V-0). The primary difference is flange configuration: 172-025-283L001 features housing/shell unthreaded flange, while 172-025-283L011 and 172-025-283L021 feature board-side 4-40 flange. Selection depends on your mechanical mounting requirements.

Q8: What packaging options are available for substitute parts?

A: Packaging varies by manufacturer and part number. NorComp parts are supplied in Tray packaging. TE Connectivity 5205738-1 is supplied in Bulk; 5205738-3, 5205738-7, 5745187-1, 5745187-3, 5745187-7, and 5745187-8 are supplied in Tube packaging. Packaging selection may affect handling, storage, and procurement logistics but does not affect connector functionality.

Q9: Which substitute part offers the widest operating temperature range?

A: NorComp 172-025-283L001, 172-025-283L011, and 172-025-283L021 all provide -50°C to +125°C operating range, exceeding the FCE17B25SN410 specification of -40°C to +85°C. This extended range provides design margin for applications with temperature extremes.

Q10: Are all listed substitute parts currently in stock?

A: Yes. All substitute parts listed in this reference document have confirmed inventory: NorComp 172-025-283L001 (1307 units), 172-025-283L011 (740 units), 172-025-283L021 (884 units); TE Connectivity 5205738-1 (815 units), 5205738-3 (934 units), 5205738-7 (640 units), 5745187-1 (1385 units), 5745187-3 (1119 units), 5745187-7 (790 units), 5745187-8 (976 units). Inventory status is subject to change; verify current availability with your supplier.

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