FCE17B25SC490 D-Sub Receptacle Connector: Equivalent & Substitute Parts

Part Overview

The FCE17B25SC490 is a 25-position D-Sub receptacle connector manufactured by Amphenol ICC, featuring female sockets with right-angle solder termination. This connector is classified as an active product and is designed for through-hole PCB mounting applications requiring signal transmission in industrial and commercial electronics.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit alternative manufacturers meeting identical electrical and mechanical specifications. The substitute parts listed below maintain functional equivalence based on connector topology, pin count, mounting configuration, and termination method.

Key Parameters

Parameter	FCE17B25SC490 Specification
Connector Type	D-Sub Receptacle, Female Sockets
Number of Positions	25
Number of Rows	2
Shell Size / Layout	3 (DB, B)
Mounting Type	Through Hole, Right Angle
Termination Method	Solder
Current Rating	5A
Backset Spacing	0.590" (14.99mm)
Shell Material / Finish	Steel, Tin Plated
Contact Finish	Gold
Contact Material	Phosphor Bronze
Operating Temperature Range	-40°C to 85°C
Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the FCE17B25SC490 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Connector type: Receptacle, Female Sockets
Position count: 25
Row configuration: 2 rows
Shell size: 3 (DB, B)
Mounting: Through Hole, Right Angle
Termination: Solder
Backset spacing: 0.590" (14.99mm)
Flange feature: Housing/Shell (4-40)
Shell material: Steel
Contact finish: Gold
Dielectric material flammability: UL94 V-0

Allowable Variations:

Current rating: 5A (main part) to 6A (substitute parts) — higher rating is acceptable
Contact finish thickness: 15.0µin to Flash or 30.0µin — all provide adequate gold plating
Shell finish: Tin Plated or Nickel Plated — both provide corrosion protection
Contact material: Phosphor Bronze or Brass — both acceptable for signal transmission
Operating temperature: -40°C to 85°C (main) to -55°C to 105°C (substitutes) — wider range is acceptable
Dielectric material: Thermoplastic Glass Filled or Polyamide (PA9T) — both meet UL94 V-0
RoHS status: RoHS Compliant or ROHS3 Compliant — both acceptable; RoHS non-compliant parts noted separately

Five substitute parts meet these criteria across two manufacturers: NorComp Inc. and TE Connectivity AMP Connectors.

Parameter Comparison

Parameter	FCE17B25SC490 (Amphenol ICC)	183-025-213R571 (NorComp)	5747838-3 (TE Connectivity)	5747838-4 (TE Connectivity)	5747838-6 (TE Connectivity)	747838-3 (TE Connectivity)	747838-4 (TE Connectivity)
Connector Type	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets
Positions / Rows	25 / 2	25 / 2	25 / 2	25 / 2	25 / 2	25 / 2	25 / 2
Shell Size	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)
Mounting Type	Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating (Amps)	5A	5A	6A	6A	6A	6A	6A
Backset Spacing	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)	0.590" (14.99mm)
Shell Material / Finish	Steel, Tin Plated	Steel, Nickel Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish Thickness	15.0µin (0.38µm)	Flash	Flash	30.0µin (0.76µm)	30.0µin (0.76µm)	Flash	30.0µin (0.76µm)
Contact Material	Phosphor Bronze	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Operating Temperature	-40°C to 85°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C	-55°C to 105°C
Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS non-compliant	RoHS Compliant
Flange Feature	Housing/Shell (4-40)	Housing/Shell (4-40)	Housing/Shell (4-40)	Housing/Shell (4-40)	Mating Side, Female Screwlock (4-40)	Housing/Shell (4-40)	Housing/Shell (4-40)
Features	Board Lock, Filter	Board Lock	Board Lock, Ground Strap	Board Lock, Ground Strap	Board Lock, Ground Strap	Board Lock, Ground Strap	Board Lock, Ground Strap

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The parts 5747838-4 and 747838-4 from TE Connectivity AMPLIMITE HD-20 series represent the closest functional equivalents to the FCE17B25SC490. Both maintain RoHS compliance, feature 30.0µin gold contact finish thickness (exceeding the main part's 15.0µin specification), and provide extended operating temperature range (-55°C to 105°C). The 6A current rating provides additional design margin over the 5A specification. Both parts are packaged in tubes with 3564 and 924 units in stock respectively.

Secondary Substitutes (Acceptable with Design Verification):

The part 5747838-3 from TE Connectivity offers equivalent specifications with flash gold plating and ground strap feature. This part maintains RoHS compliance and 6A current rating. Inventory availability is 3505 units.

The part 183-025-213R571 from NorComp Inc. provides ROHS3 compliance and extended temperature range (-55°C to 105°C). This part features nickel-plated steel shell and brass contact material instead of phosphor bronze. The part supports panel mount in addition to through-hole mounting. Inventory is 2006 units in tray packaging.

Not Recommended for New Designs:

The part 747838-3 from TE Connectivity carries RoHS non-compliant status and should not be selected for applications requiring regulatory compliance with current environmental standards.

Frequently Asked Questions (FAQ)

Q: Can I substitute the FCE17B25SC490 with any of the listed parts without PCB redesign?

A: Yes. All listed substitute parts (except 747838-3) maintain identical mechanical footprint, backset spacing (0.590"), shell size (3/DB-B), and through-hole right-angle mounting configuration. PCB layout compatibility is preserved.

Q: What is the difference between the TE Connectivity AMPLIMITE HD-20 variants (5747838-3, 5747838-4, 5747838-6, 747838-3, 747838-4)?

A: The variants differ in contact finish thickness, flange feature configuration, and RoHS compliance status. Part 5747838-6 features female screwlock on the mating side instead of housing-side mounting. Parts 5747838-4 and 747838-4 provide 30.0µin gold plating versus flash plating on 5747838-3 and 747838-3. Part 747838-3 is RoHS non-compliant.

Q: Does the NorComp 183-025-213R571 use different contact material?

A: Yes. The NorComp part uses brass contacts versus phosphor bronze in the Amphenol and TE Connectivity parts. Both materials are acceptable for signal transmission in D-Sub applications and maintain equivalent electrical performance at the specified 5A current rating.

Q: What is the significance of the "Ground Strap" feature in TE Connectivity parts?

A: The ground strap provides additional EMI shielding and grounding path. This feature is present in all TE Connectivity substitutes but absent in the original FCE17B25SC490 and NorComp 183-025-213R571. This represents an enhancement rather than a compatibility issue.

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

A: No. The FCE17B25SC490 packaging is not specified in the provided data. TE Connectivity parts are supplied in tubes; NorComp 183-025-213R571 is supplied in trays. Verify packaging requirements with your procurement process.

Q: Which substitute offers the best thermal performance?

A: All substitute parts support -55°C to 105°C operating range, exceeding the FCE17B25SC490 specification of -40°C to 85°C. This provides additional design margin for applications with elevated ambient temperatures or thermal cycling requirements.

Q: Is the higher current rating (6A) of TE Connectivity parts a concern?

A: No. A higher current rating indicates greater design margin and does not create compatibility issues. The 6A rating accommodates higher current applications while remaining backward compatible with 5A designs.

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