FCE17B25PC20B D-Sub 25 Position Right Angle Solder Plug Connector

Part Overview

The FCE17B25PC20B is a 25 position D-Sub plug connector manufactured by Amphenol ICC (Commercial Products) with male pins, right angle mounting, and solder termination. This connector is classified as a D-shaped connector (Shell Size 3, DB/B layout) designed for signal applications in through-hole PCB assembly. The part is currently active in production with 947 units in stock.

Equivalent and substitute parts are identified when alternative D-Sub 25 position plug connectors meet the core electrical and mechanical requirements for direct board-level replacement. Substitution becomes necessary when the primary part reaches end-of-life status, inventory constraints occur, or design flexibility permits selection from multiple qualified suppliers.

Key Parameters

Parameter	FCE17B25PC20B Value	Substitution Criticality
Connector Type	Plug, Male Pins	Critical
Number of Positions	25	Critical
Number of Rows	2	Critical
Shell Size, Connector Layout	3 (DB, B)	Critical
Mounting Type	Through Hole, Right Angle	Critical
Termination	Solder	Critical
Current Rating (Amps)	5A	Critical
Backset Spacing	0.590" (14.99mm)	Critical
Contact Type	Signal	Critical
Flange Feature	Housing/Shell (Unthreaded)	Important
Shell Material, Finish	Steel, Tin Plated	Important
Contact Finish	Gold	Important
Operating Temperature	-40°C ~ 85°C	Important
Material Flammability Rating	UL94 V-0	Important
Color	Black	Reference

Substitute Part Grouping Explanation

Substitute parts for the FCE17B25PC20B are qualified based on strict alignment with critical electrical and mechanical parameters. All substitute candidates must satisfy the following requirements:

Critical Parameters (Must Match):

Connector Type: Plug with Male Pins
Number of Positions: 25
Number of Rows: 2
Shell Size and Layout: 3 (DB, B)
Mounting Type: Through Hole, Right Angle
Termination Method: Solder
Contact Type: Signal
Current Rating: 5A minimum

Important Parameters (Must Be Compatible):

Backset Spacing: 0.590" (14.99mm) or equivalent
Contact Finish: Gold plated
Material Flammability: UL94 V-0
Operating Temperature Range: Must encompass or exceed -40°C to 85°C

Acceptable Variations:

Shell Material Finish: Steel with Tin, Nickel, or Yellow Chromate plating
Flange Feature: Unthreaded housing, threaded housing (4-40), or mating side screwlock configurations
Contact Material: Phosphor Bronze or Brass
Dielectric Material: Thermoplastic, Glass Filled, Polyamide (PA9T), or Nylon variants
RoHS Compliance Status: RoHS Compliant or ROHS3 Compliant

Substitute parts are grouped by manufacturer and flange feature configuration, as these variations do not affect electrical performance or core mechanical compatibility on the PCB.

Parameter Comparison

Parameter	FCE17B25PC20B (Amphenol ICC)	183-025-113R161 (NorComp)	183-025-113R171 (NorComp)	183-025-113R181 (NorComp)	183-025-113R531 (NorComp)	183-025-113R561 (NorComp)	205857-1 (TE Connectivity)	5205857-1 (TE Connectivity)	5747022-2 (TE Connectivity)
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Number of Positions	25	25	25	25	25	25	25	25	25
Number of Rows	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)
Mounting Type	Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating (Amps)	5A	5A	5A	5A	5A	5A	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)	0.545" (13.84mm)	0.545" (13.84mm)	0.545" (13.84mm)
Contact Type	Signal	Signal	Signal	Signal	Signal	Signal	Signal	Signal	Signal
Shell Material, Finish	Steel, Tin Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Yellow Chromate Plated Zinc	Steel, Yellow Chromate Plated Zinc	Steel, Tin Plated
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Material	Phosphor Bronze	Brass	Brass	Brass	Brass	Brass	Brass	Brass	Brass
Operating Temperature	-40°C ~ 85°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	-55°C ~ 105°C
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
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Voltage Rating	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified	125V	125V	125V

Engineering Selection Recommendations

Primary Substitutes (NorComp 183 Series):

The NorComp 183-025-113R161, 183-025-113R171, 183-025-113R181, 183-025-113R531, and 183-025-113R561 connectors are fully qualified substitutes for the FCE17B25PC20B. All five NorComp variants maintain identical 25 position, 2 row, DB/B shell size configuration with 0.590" backset spacing and 5A current rating. These parts are ROHS3 compliant and operate across an extended temperature range of -55°C to 105°C, which encompasses the FCE17B25PC20B operating window. Differences among the NorComp variants are limited to flange feature configuration (unthreaded housing, threaded 4-40 housing, or mating side screwlock) and internal features (ground strap, board lock). These variations do not affect electrical performance or PCB-level compatibility.

Secondary Substitutes (TE Connectivity AMPLIMITE Series):

The TE Connectivity 205857-1, 5205857-1, and 5747022-2 connectors provide functional equivalence with the following considerations:

Backset Spacing Variance: TE Connectivity parts specify 0.545" (13.84mm) backset spacing compared to 0.590" (14.99mm) for the FCE17B25PC20B. This 0.045" difference requires PCB layout verification to confirm mechanical clearance and mounting hole alignment.
Current Rating Enhancement: TE Connectivity parts are rated for 6A, exceeding the 5A rating of the FCE17B25PC20B. This provides design margin for applications operating at or near the 5A threshold.
Voltage Rating: TE Connectivity parts include a 125V voltage rating specification, whereas the FCE17B25PC20B does not specify voltage rating. This additional rating provides documented electrical performance for AC/DC applications.
RoHS Compliance: The 205857-1 is RoHS non-compliant and should not be selected for new designs subject to RoHS requirements. The 5205857-1 and 5747022-2 are ROHS3 compliant and suitable for RoHS-regulated applications.

Recommended Selection Priority:

NorComp 183-025-113R161 for direct replacement with identical backset spacing and unthreaded flange configuration
NorComp 183-025-113R531 or 183-025-113R561 if board lock feature is required for mechanical retention
TE Connectivity 5205857-1 or 5747022-2 only if PCB layout accommodates 0.545" backset spacing and RoHS3 compliance is required

Frequently Asked Questions (FAQ)

Q: Can NorComp 183 series connectors directly replace the FCE17B25PC20B without PCB modification?

A: Yes. The NorComp 183-025-113R161, 183-025-113R171, 183-025-113R181, 183-025-113R531, and 183-025-113R561 connectors share identical 25 position, 2 row configuration, DB/B shell size, 0.590" backset spacing, and 5A current rating. These parts mount directly into existing PCB footprints designed for the FCE17B25PC20B. Flange feature differences (unthreaded, threaded, or screwlock) do not affect PCB-level compatibility.

Q: What is the significance of the backset spacing difference between Amphenol/NorComp and TE Connectivity parts?

A: Backset spacing defines the distance from the connector mounting plane to the rear edge of the connector body. The FCE17B25PC20B and NorComp parts specify 0.590" (14.99mm), while TE Connectivity parts specify 0.545" (13.84mm). This 0.045" difference affects PCB mounting hole positioning and clearance to adjacent components. PCB layout must be verified before substituting TE Connectivity parts to confirm mechanical fit and prevent interference with board-mounted components or enclosure boundaries.

Q: Are all substitute parts RoHS compliant?

A: No. The TE Connectivity 205857-1 is RoHS non-compliant and must not be used in new designs subject to RoHS regulations. The NorComp 183 series and TE Connectivity 5205857-1 and 5747022-2 are ROHS3 compliant. The FCE17B25PC20B is RoHS compliant. For applications requiring RoHS compliance, select from NorComp 183 series or TE Connectivity 5205857-1 and 5747022-2 only.

Q: What is the difference between the various NorComp 183 flange configurations?

A: NorComp 183-025-113R161 features an unthreaded housing/shell flange. 183-025-113R171 and 183-025-113R531 feature a threaded 4-40 housing/shell flange. 183-025-113R181 and 183-025-113R561 feature a mating side female screwlock (4-40) flange. These variations provide different mechanical retention options for the mating connector but do not affect electrical performance or PCB mounting compatibility. Selection depends on the mating connector type and mechanical retention requirements of the application.

Q: Can the FCE17B25PC20B be substituted with TE Connectivity parts without design changes?

A: Substitution with TE Connectivity 205857-1, 5205857-1, or 5747022-2 requires PCB layout verification due to the 0.045" backset spacing difference. Existing PCB footprints designed for 0.590" backset spacing may not accommodate 0.545" spacing without modification to mounting hole positions. Additionally, the 205857-1 is RoHS non-compliant and unsuitable for RoHS-regulated applications. If backset spacing and RoHS compliance are compatible with the application, TE Connectivity parts provide enhanced current rating (6A) and documented voltage rating (125V).

Q: What contact material differences exist between substitute parts?

A: The FCE17B25PC20B uses Phosphor Bronze contacts, while all substitute parts use Brass contacts. Both materials are gold-plated and suitable for signal applications. Brass contacts provide equivalent electrical performance and are widely used in D-Sub connector applications. Contact material selection does not affect substitution compatibility.

Q: Are there inventory considerations when selecting substitute parts?

A: Yes. Current inventory levels are: FCE17B25PC20B (947 units), NorComp 183-025-113R161 (1605 units), NorComp 183-025-113R171 (2139 units), NorComp 183-025-113R181 (1140 units), NorComp 183-025-113R531 (1392 units), NorComp 183-025-113R561 (1661 units), TE Connectivity 205857-1 (762 units), TE Connectivity 5205857-1 (1015 units), and TE Connectivity 5747022-2 (1645 units). NorComp 183-025-113R171 offers the highest inventory availability.

Q: What is the operating temperature range compatibility for substitution?

A: The FCE17B25PC20B operates from -40°C to 85°C. All substitute parts operate from -55°C to 105°C, which exceeds the primary part's temperature range. This extended range provides design margin and ensures substitute parts function across the full operating window of the FCE17B25PC20B and beyond.

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