FCE17B25SN440 Equivalent & Substitute Parts

Part Overview

The FCE17B25SN440 is a 25-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This connector features female sockets with vertical through-hole mounting and solder termination. The part is classified as active product status with 742 units in current inventory. D-Sub connectors of this configuration are widely used in industrial, telecommunications, and legacy computing applications where standardized 25-position signal connectivity is required. Substitute parts are identified to address supply chain continuity, alternative sourcing requirements, and specific application constraints such as mounting type variations or environmental operating ranges.

Key Parameters

Parameter	Value
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
Termination	Solder
Contact Type	Signal
Current Rating (Amps)	5A
Material Flammability Rating	UL94 V-0
Operating Temperature	-40°C ~ 85°C
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitute parts for the FCE17B25SN440 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Core Compatibility Parameters:

Connector style (D-Sub)
Connector type (Receptacle, Female Sockets)
Number of positions (25)
Number of rows (2)
Shell size and layout (3 / DB, B)
Termination method (Solder)
Contact type (Signal)
Material flammability rating (UL94 V-0)

Substitution Constraints: Substitute parts must maintain identical position count, row configuration, and shell size. Mounting type variations (through-hole versus panel mount) are permitted where the connector footprint remains compatible with the application circuit board. Current rating, operating temperature range, and shell material finish may vary within acceptable engineering tolerances. Contact finish specifications and dielectric materials differ among substitutes but do not preclude functional equivalence for signal-level applications.

Parameter Comparison

Parameter	FCE17B25SN440 (Amphenol ICC)	172-025-283L001 (NorComp)	172-025-283L011 (NorComp)	172-025-283L021 (NorComp)	5205738-1 (TE Connectivity)	5205738-3 (TE Connectivity)	5205738-7 (TE Connectivity)	5745187-1 (TE Connectivity)	5745187-3 (TE Connectivity)	5745187-7 (TE Connectivity)	5745187-8 (TE Connectivity)
Connector Style	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub
Connector Type	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	Receptacle, Female Sockets	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	25	25	25	25	25
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Shell Size, Connector Layout	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	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	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Type	Signal	Signal	Signal	Signal	Signal	Signal	Signal	Signal	Signal	Signal	Signal
Current Rating (Amps)	5A	5A	5A	5A	6A	6A	6A	6A	6A	6A	6A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Operating Temperature	-40°C ~ 85°C	-50°C ~ 125°C	-50°C ~ 125°C	-50°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Contact Material	Phosphor Bronze	Brass	Brass	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Shell Material, Finish	Steel, Tin Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Yellow Chromate Plated Zinc	Steel, Yellow Chromate Plated Zinc	Steel, Yellow Chromate Plated Zinc	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Dielectric Material	Thermoplastic, Glass Filled	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polyamide (PA), Nylon, Glass Filled	Polyamide (PA), Nylon, Glass Filled	Polyamide (PA), Nylon, Glass Filled	Polyamide (PA), Nylon, Glass Filled	Polyamide (PA), Nylon, Glass Filled	Polyamide (PA), Nylon, Glass Filled	Polyamide (PA), Nylon, Glass Filled

Engineering Selection Recommendations

All substitute parts listed maintain active product status and comply with RoHS or ROHS3 regulations. Selection among substitute options depends on specific application requirements:

NorComp 172-025 Series (172-025-283L001, 172-025-283L011, 172-025-283L021): These connectors offer extended operating temperature range (-50°C to 125°C) compared to the FCE17B25SN440 (-40°C to 85°C). The 172-025-283L001 features panel mount capability with unthreaded housing flange, while 172-025-283L011 and 172-025-283L021 provide board-side 4-40 flange mounting. All three NorComp variants use brass contacts and PBT dielectric material. These parts are suitable for applications requiring wider temperature operating margins or panel-mounted configurations.

TE Connectivity AMPLIMITE HDP-20 Series (5205738 and 5745187 variants): TE Connectivity substitutes provide 6A current rating, exceeding the FCE17B25SN440 specification of 5A. Operating temperature range extends to -55°C to 105°C. The 5205738 series features yellow chromate plated zinc shell finish, while 5745187 series provides tin-plated steel shells. All TE Connectivity variants use phosphor bronze contacts and polyamide nylon glass-filled dielectric material. These parts are suitable for applications requiring higher current capacity or enhanced environmental protection through alternative shell finishes.

Mounting Type Considerations: The FCE17B25SN440 and all TE Connectivity substitutes feature through-hole vertical mounting. NorComp 172-025 series connectors support both panel mount and through-hole configurations, providing design flexibility for applications requiring panel-mounted receptacles.

Frequently Asked Questions (FAQ)

Q: Can NorComp 172-025-283L001 replace FCE17B25SN440 in a through-hole application?

A: The 172-025-283L001 supports both panel mount and through-hole mounting types. While the connector includes panel mount capability, it remains compatible with through-hole circuit board layouts. The unthreaded housing flange differs from the FCE17B25SN440 board-side 4-40 flange, requiring verification of mechanical fit within the specific application enclosure or circuit board design.

Q: What is the difference between NorComp 172-025-283L001, 172-025-283L011, and 172-025-283L021?

A: All three NorComp variants share identical electrical specifications and operating temperature range. The primary difference is flange configuration: 172-025-283L001 features unthreaded housing flange, while 172-025-283L011 and 172-025-283L021 both provide board-side 4-40 threaded flange mounting. Selection depends on the specific mechanical mounting requirements of the application.

Q: Are TE Connectivity 5205738 and 5745187 series interchangeable?

A: Both series are functionally equivalent 25-position D-Sub receptacles with identical electrical ratings and operating temperature ranges. The primary distinction is shell material finish: 5205738 series uses yellow chromate plated zinc, while 5745187 series uses tin-plated steel. Selection depends on corrosion resistance requirements and environmental exposure conditions. The FCE17B25SN440 uses tin-plated steel, making 5745187 series more closely aligned with the original specification.

Q: Does the higher current rating of TE Connectivity substitutes (6A versus 5A) affect compatibility?

A: Higher current rating indicates enhanced electrical capacity and does not negatively impact compatibility. Applications designed for 5A operation function correctly with 6A-rated connectors. The higher rating provides additional design margin for applications approaching the original 5A specification limit.

Q: What is the significance of operating temperature range differences?

A: The FCE17B25SN440 operates from -40°C to 85°C. NorComp substitutes extend to -50°C to 125°C, and TE Connectivity substitutes to -55°C to 105°C. Wider temperature ranges accommodate applications in extreme environmental conditions. For applications operating within the FCE17B25SN440 temperature envelope, all substitutes remain fully compatible.

Q: How do dielectric material differences affect connector performance?

A: The FCE17B25SN440 uses thermoplastic glass-filled dielectric, NorComp uses PBT, and TE Connectivity uses polyamide nylon glass-filled material. All materials meet UL94 V-0 flammability requirements. Dielectric material selection affects mechanical properties and environmental resistance but does not impact signal-level electrical performance for standard D-Sub applications.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed comply with RoHS or ROHS3 regulations. The FCE17B25SN440 is RoHS Compliant. NorComp 172-025 series parts are ROHS3 Compliant. TE Connectivity variants carry either RoHS Compliant or ROHS3 Compliant designations. Both compliance levels are acceptable for applications requiring lead-free component specifications.

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