FCE17B25PC49B D-Sub 25 Position Plug Connector Equivalent & Substitute Parts

Part Overview

The FCE17B25PC49B is a 25 position D-Sub plug connector manufactured by Amphenol ICC (Commercial Products). This right-angle solder-terminated connector features male pins in a 2-row configuration with shell size 3 (DB, B) layout. The connector is designed for through-hole mounting with board-side flange mounting (4-40). The part is currently active in production with 887 pieces in new original stock inventory.

D-Sub connectors of this specification are essential components in legacy and industrial equipment requiring standardized signal transmission interfaces. Equivalent and substitute parts become necessary when the primary manufacturer part experiences supply constraints, extended lead times, or when design requirements permit alternative qualified sources meeting identical electrical and mechanical parameters.

Key Parameters

Parameter	Value
Connector Style	D-Sub
Connector Type	Plug, Male Pins
Number of Positions	25
Number of Rows	2
Shell Size, Connector Layout	3 (DB, B)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Current Rating	5A
Backset Spacing	0.590" (14.99mm)
Shell Material, Finish	Steel, Tin Plated or Nickel Plated
Contact Finish	Gold
Operating Temperature Range	-40°C ~ 85°C (Main Part) / -55°C ~ 105°C (Substitutes)
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant / ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the FCE17B25PC49B is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Connector style: D-Sub
Connector type: Plug with male pins
Position count: 25 positions
Row configuration: 2 rows
Shell size and layout: 3 (DB, B)
Mounting configuration: Through hole, right angle orientation
Termination method: Solder
Current rating: 5A minimum
Backset spacing: 0.590" (14.99mm)
Contact finish: Gold plated
Flammability rating: UL94 V-0
Compliance: RoHS compliant

Allowable Variations:

Shell material finish: Steel with tin plating (main part) or steel with nickel plating (substitutes) are both acceptable
Contact material: Phosphor bronze (main part) or brass (substitutes) are both acceptable
Operating temperature range: Substitutes with extended range (-55°C ~ 105°C) exceed minimum requirements
Flange feature type: Board side (4-40) on main part; housing/shell (4-40) or housing/shell (unthreaded) on substitutes
Dielectric material: Thermoplastic glass-filled (main part) or polyamide PA9T nylon 9T (substitutes)
Contact finish thickness: 15.0µin (main part) or flash (substitutes)

All three substitute parts (183-025-113R161, 183-025-113R171, 183-025-113R531) manufactured by NorComp Inc. meet these substitution criteria.

Parameter Comparison

Parameter	FCE17B25PC49B (Amphenol ICC)	183-025-113R161 (NorComp)	183-025-113R171 (NorComp)	183-025-113R531 (NorComp)
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Positions	25	25	25	25
Rows	2	2	2	2
Shell Size	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)
Mounting Type	Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder
Current Rating	5A	5A	5A	5A
Backset Spacing	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, Nickel Plated	Steel, Nickel Plated
Contact Finish	Gold	Gold	Gold	Gold
Flange Feature	Board Side (4-40)	Housing/Shell (Unthreaded)	Housing/Shell (4-40)	Housing/Shell (4-40)
Operating Temperature	-40°C ~ 85°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Material Flammability	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active
Inventory (Pcs)	887	1605	2139	1392

Engineering Selection Recommendations

All three NorComp substitute parts (183-025-113R161, 183-025-113R171, 183-025-113R531) are qualified equivalents for the FCE17B25PC49B based on matching electrical and mechanical specifications.

Selection Criteria by Application Context:

183-025-113R171 and 183-025-113R531 are preferred for applications requiring board-side flange mounting with 4-40 threaded holes, as these configurations match the mounting interface of the original FCE17B25PC49B. Both parts feature housing/shell flange with 4-40 threading. The 183-025-113R171 includes ground strap and grounding indents; the 183-025-113R531 includes board lock and grounding indents. Selection between these two depends on mechanical retention requirements.

183-025-113R161 features housing/shell flange without threading (unthreaded). This variant is suitable for applications where panel mounting without threaded fasteners is acceptable or preferred.

All substitute parts provide extended operating temperature range (-55°C ~ 105°C) compared to the main part (-40°C ~ 85°C), offering enhanced thermal performance for demanding environments. All parts maintain UL94 V-0 flammability rating and RoHS3 compliance. Inventory availability is higher across all substitute parts (1392–2139 pieces) compared to the main part (887 pieces).

Frequently Asked Questions (FAQ)

Q: Can 183-025-113R161, 183-025-113R171, and 183-025-113R531 be used interchangeably with FCE17B25PC49B?

A: Yes, all three NorComp parts are electrical and mechanical equivalents. They share identical position count (25), row configuration (2), shell size (3 DB/B), current rating (5A), backset spacing (0.590"), termination method (solder), and contact finish (gold). Differences in flange feature type and mounting configuration must be evaluated against specific board layout requirements.

Q: What is the difference between the three NorComp substitute parts?

A: The primary differences are flange feature configuration and mechanical retention features. 183-025-113R161 has unthreaded housing/shell flange. 183-025-113R171 has 4-40 threaded housing/shell flange with ground strap. 183-025-113R531 has 4-40 threaded housing/shell flange with board lock. All three maintain identical electrical specifications and operating temperature range.

Q: Does the nickel plating on substitute parts affect signal integrity compared to tin plating on the main part?

A: No. Both tin and nickel plating on steel shells provide equivalent electromagnetic shielding and signal integrity performance for D-Sub connectors. The contact finish (gold on all parts) is the primary determinant of signal quality and corrosion resistance.

Q: Are the substitute parts compatible with existing FCE17B25PC49B mating connectors?

A: Yes. All substitute parts maintain identical shell size (3 DB/B), position count (25), and row configuration (2), ensuring mechanical and electrical compatibility with standard D-Sub 25-position receptacles designed for the FCE17 series.

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

A: The NorComp substitutes operate from -55°C to 105°C, compared to -40°C to 85°C for the Amphenol part. This extended range provides additional thermal margin for applications in extreme environments. If the application operates within the original -40°C to 85°C range, both specifications are functionally equivalent.

Q: Do the substitute parts require different PCB footprints?

A: No. All parts share identical backset spacing (0.590" / 14.99mm) and through-hole mounting configuration. PCB footprints designed for FCE17B25PC49B are compatible with all three substitute parts. Flange mounting hole patterns may differ; verify 4-40 threaded hole availability on the PCB if using 183-025-113R171 or 183-025-113R531.

Q: Are all parts RoHS compliant?

A: Yes. The main part FCE17B25PC49B is RoHS Compliant. All three substitute parts are ROHS3 Compliant, which represents an updated compliance standard and is fully compatible with RoHS requirements.

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