FCC17B25SN450 Equivalent & Substitute Parts

Part Overview

The FCC17B25SN450 is a 25 Position D-Sub Receptacle connector manufactured by Amphenol ICC (Commercial Products). This through-hole solder-terminated connector features female sockets in a DB/B shell size configuration with board-side flange mounting. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. Active alternative models from Amphenol ICC and other manufacturers provide functional equivalence with enhanced compliance status and availability.

Key Parameters

Parameter	FCC17B25SN450 Specification
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
Current Rating	5A
Voltage Rating	200V
Operating Temperature Range	-40°C ~ 85°C
Shell Material, Finish	Steel, Tin Plated
Contact Finish	Gold
Contact Material	Phosphor Bronze
Flange Feature	Board Side (4-40)
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the FCC17B25SN450 is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Connector Type: Receptacle, Female Sockets
Number of Positions: 25
Number of Rows: 2
Shell Size, Connector Layout: 3 (DB, B)
Termination: Solder
Current Rating: 5A or greater
Voltage Rating: 200V or greater
Operating Temperature Range: Must encompass -40°C ~ 85°C
Material Flammability Rating: UL94 V-0
Contact Finish: Gold

Secondary Compatibility Parameters:

Mounting Type: Through Hole (primary) or Panel Mount, Through Hole (compatible)
Flange Feature: Board Side (4-40) preferred; Housing/Shell (Unthreaded) or Mating Side (4-40) acceptable with mechanical verification
Shell Material: Steel with any plating (Tin, Nickel, or Yellow Chromate Plated Zinc)
Contact Material: Phosphor Bronze or Brass
Dielectric Material: Thermoplastic, Glass Filled, Polybutylene Terephthalate (PBT), or Polyamide (PA)

Substitutes are grouped by manufacturer and product status. Active parts with enhanced compliance certifications (RoHS3, REACH) are preferred for new designs. Obsolete parts within the same series provide direct functional replacement.

Parameter Comparison

Part Number	Manufacturer	Product Status	Connector Type	Positions	Rows	Shell Size	Mounting Type	Current Rating (A)	Voltage Rating (V)	Operating Temp (°C)	Shell Material, Finish	Contact Finish	Contact Material	Flange Feature	RoHS Status
FCC17B25SN450	Amphenol ICC	Obsolete	Receptacle, Female Sockets	25	2	3 (DB, B)	Through Hole	5	200	-40 ~ 85	Steel, Tin Plated	Gold	Phosphor Bronze	Board Side (4-40)	RoHS non-compliant
FCE17B25SN450	Amphenol ICC	Active	Receptacle, Female Sockets	25	2	3 (DB, B)	Through Hole	5	—	-40 ~ 85	Steel, Tin Plated	Gold	Phosphor Bronze	Board Side (4-40)	RoHS Compliant
172-025-283L001	NorComp Inc.	Active	Receptacle, Female Sockets	25	2	3 (DB, B)	Panel Mount, Through Hole	5	—	-50 ~ 125	Steel, Nickel Plated	Gold	Brass	Housing/Shell (Unthreaded)	ROHS3 Compliant
172-025-283L011	NorComp Inc.	Active	Receptacle, Female Sockets	25	2	3 (DB, B)	Panel Mount, Through Hole	5	—	-50 ~ 125	Steel, Nickel Plated	Gold	Brass	Board Side (4-40)	ROHS3 Compliant
172-025-283L021	NorComp Inc.	Active	Receptacle, Female Sockets	25	2	3 (DB, B)	Panel Mount, Through Hole	5	—	-50 ~ 125	Steel, Nickel Plated	Gold	Brass	Board Side (4-40)	ROHS3 Compliant
172-025-283L031	NorComp Inc.	Active	Receptacle, Female Sockets	25	2	3 (DB, B)	Panel Mount, Through Hole	5	—	-50 ~ 125	Steel, Nickel Plated	Gold	Brass	Mating Side (4-40)	ROHS3 Compliant
205738-3	TE Connectivity AMP Connectors	Active	Receptacle, Female Sockets	25	2	3 (DB, B)	Through Hole	6	125	-55 ~ 105	Steel, Yellow Chromate Plated Zinc	Gold	Phosphor Bronze	Housing/Shell (Unthreaded)	RoHS non-compliant
205738-7	TE Connectivity AMP Connectors	Active	Receptacle, Female Sockets	25	2	3 (DB, B)	Through Hole	6	125	-55 ~ 105	Steel, Yellow Chromate Plated Zinc	Gold	Phosphor Bronze	Housing/Shell (Unthreaded)	RoHS non-compliant
5205738-1	TE Connectivity AMP Connectors	Active	Receptacle, Female Sockets	25	2	3 (DB, B)	Through Hole	6	125	-55 ~ 105	Steel, Yellow Chromate Plated Zinc	Gold	Phosphor Bronze	Housing/Shell (Unthreaded)	ROHS3 Compliant
5205738-3	TE Connectivity AMP Connectors	Active	Receptacle, Female Sockets	25	2	3 (DB, B)	Through Hole	6	125	-55 ~ 105	Steel, Yellow Chromate Plated Zinc	Gold	Phosphor Bronze	Housing/Shell (Unthreaded)	RoHS Compliant

Engineering Selection Recommendations

Direct Replacement (Same Series, Active Status):

FCE17B25SN450 (Amphenol ICC) is the primary direct replacement for FCC17B25SN450. Both connectors share identical mechanical and electrical specifications within the FCC/FCE17 series. FCE17B25SN450 is active and RoHS Compliant, providing improved regulatory compliance while maintaining full functional equivalence. This part is recommended for new designs and ongoing procurement.

Cross-Manufacturer Alternatives (Active Status, Enhanced Compliance):

NorComp Inc. 172-025 series connectors (172-025-283L001, 172-025-283L011, 172-025-283L021, 172-025-283L031) provide functional equivalence with ROHS3 Compliant status and extended operating temperature range (-50°C ~ 125°C). These parts accommodate both through-hole and panel-mount configurations. Selection among these variants depends on flange feature requirements: Housing/Shell (Unthreaded) for 172-025-283L001, Board Side (4-40) for 172-025-283L011 and 172-025-283L021, or Mating Side (4-40) for 172-025-283L031.

TE Connectivity AMP Connectors AMPLIMITE HDP-20 series (205738-3, 205738-7, 5205738-1, 5205738-3) provide functional equivalence with higher current rating (6A) and extended operating temperature range (-55°C ~ 105°C). Parts 5205738-1 and 5205738-3 are ROHS3 Compliant. These connectors feature Housing/Shell (Unthreaded) flange configuration and are suitable for applications requiring enhanced thermal performance.

Compliance Considerations:

For applications subject to RoHS requirements, FCE17B25SN450, 172-025 series (all variants), 5205738-1, and 5205738-3 meet current compliance standards. Parts 205738-3, 205738-7, and FCC17B25SN450 are RoHS non-compliant and should be reserved for legacy system support only.

Frequently Asked Questions (FAQ)

Q: Can FCE17B25SN450 directly replace FCC17B25SN450 in existing designs?

A: Yes. FCE17B25SN450 maintains identical electrical and mechanical specifications as FCC17B25SN450, including 25 positions, 5A current rating, 200V voltage rating, and board-side (4-40) flange mounting. The primary difference is product status (Active vs. Obsolete) and RoHS compliance. No design modifications are required.

Q: What is the difference between NorComp 172-025-283L011 and 172-025-283L031?

A: Both connectors are functionally equivalent 25-position D-Sub receptacles with identical electrical ratings and ROHS3 compliance. The distinction is flange feature location: 172-025-283L011 features Board Side (4-40) mounting, while 172-025-283L031 features Mating Side (4-40) mounting. Selection depends on PCB layout and mechanical mounting requirements.

Q: Are TE Connectivity 205738-3 and 5205738-3 interchangeable?

A: Both parts are functionally equivalent 25-position D-Sub receptacles with identical electrical specifications (6A current, 125V voltage, -55°C ~ 105°C operating range) and Housing/Shell (Unthreaded) flange configuration. The primary difference is RoHS compliance status: 205738-3 is RoHS non-compliant, while 5205738-3 is RoHS Compliant. For new designs, 5205738-3 is preferred.

Q: What is the impact of different shell material finishes on connector performance?

A: Shell material finishes (Tin Plated, Nickel Plated, Yellow Chromate Plated Zinc) provide corrosion resistance and environmental protection. All finishes specified in the substitute parts meet UL94 V-0 flammability requirements. Selection should be based on application environment and existing system specifications. Tin-plated variants (FCC17B25SN450, FCE17B25SN450) are suitable for standard industrial environments. Nickel-plated variants (172-025 series) provide enhanced corrosion resistance. Yellow Chromate Plated Zinc variants (205738, 5205738 series) are suitable for aerospace and high-reliability applications.

Q: Can NorComp 172-025 series connectors be used in applications originally designed for Amphenol FCC17B25SN450?

A: Yes, with mechanical verification. NorComp 172-025 series connectors provide electrical equivalence (25 positions, 5A current, UL94 V-0 rating, gold-plated contacts). However, mounting configuration differs: FCC17B25SN450 is through-hole only, while 172-025 series supports both panel mount and through-hole. Flange feature variations (Housing/Shell, Board Side, or Mating Side) require PCB layout confirmation. Extended operating temperature range (-50°C ~ 125°C) and ROHS3 compliance provide design advantages.

Q: What are the packaging differences among substitute parts?

A: FCC17B25SN450 packaging is not specified. FCE17B25SN450 packaging is not specified. NorComp 172-025 series parts are supplied in Tray packaging. TE Connectivity 205738-3 and 205738-7 are supplied in Bulk packaging. TE Connectivity 5205738-1 is supplied in Bulk packaging. TE Connectivity 5205738-3 is supplied in Tube packaging. Packaging selection affects handling, storage, and automated assembly compatibility. Confirm packaging requirements with procurement and assembly processes.

Q: Are there voltage rating differences between FCC17B25SN450 and substitute parts?

A: Yes. FCC17B25SN450 is rated for 200V. FCE17B25SN450 voltage rating is not specified in available data. NorComp 172-025 series voltage rating is not specified. TE Connectivity 205738 and 5205738 series are rated for 125V. For applications requiring 200V operation, FCC17B25SN450 or FCE17B25SN450 are required. For applications operating at 125V or below, all substitute parts are suitable.

Q: What is the significance of contact material differences (Phosphor Bronze vs. Brass)?

A: Both Phosphor Bronze and Brass are acceptable contact materials for D-Sub connectors. Phosphor Bronze (FCC17B25SN450, FCE17B25SN450, 205738, 5205738 series) provides superior spring characteristics and wear resistance. Brass (172-025 series) provides adequate performance for standard applications. Contact material selection does not affect substitution eligibility when all other electrical and mechanical parameters are equivalent.

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