CWN-501-20-0000 Equivalent & Substitute Parts

Part Overview

The CWN-501-20-0000 is a rectangular connector header manufactured by CW Industries, designed for through-hole, right-angle board-to-cable/wire applications. This shrouded 20-position connector with 2.54mm pitch is an active product with full inventory availability. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit component flexibility within specified electrical and mechanical parameters.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	20
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Current Rating	1A
Operating Temperature	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility for the CWN-501-20-0000 is determined by the following critical parameters:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 20
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole, Right Angle
Shrouding: Shrouded - 4 Wall
Termination: Solder
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant

The identified substitute parts D3428-5002-AR and N3428-5002RB meet all critical dimensional and electrical compatibility requirements. Variations in secondary parameters such as contact material, contact finish composition, fastening mechanism, and insulation material do not prevent functional substitution within the specified operating envelope.

Parameter Comparison

Parameter	CWN-501-20-0000	D3428-5002-AR	N3428-5002RB
Manufacturer	CW Industries	3M	3M
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	20	20	20
Number of Rows	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Contact Finish - Mating	Gold	Gold	Gold
Contact Finish Thickness - Mating	10.0µin (0.25µm)	10.0µin (0.25µm)	30.0µin (0.76µm)
Current Rating (Amps)	1A	1.75A	1.75A
Operating Temperature	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts—CWN-501-20-0000, D3428-5002-AR, and N3428-5002RB—are active products with ROHS3 compliance and UL94 V-0 flammability certification. The substitute parts D3428-5002-AR and N3428-5002RB provide equivalent mechanical and electrical functionality for applications operating within -55°C to 105°C. Applications requiring the full -55°C to 125°C operating range of the CWN-501-20-0000 must retain the primary part.

The substitute parts support higher current ratings (1.75A versus 1A), making them suitable for applications with increased current demand. Packaging differences (tray for D3428-5002-AR, bulk for N3428-5002RB) and fastening mechanism variations (push-pull versus latch lock/eject hooks) do not affect electrical or mechanical compatibility when mating with standard 0.100" (2.54mm) pitch connectors.

Frequently Asked Questions (FAQ)

Q: Can D3428-5002-AR or N3428-5002RB be used as direct replacements for CWN-501-20-0000?

A: Yes, both parts meet the critical compatibility parameters: 20-position, 2-row configuration with 0.100" (2.54mm) pitch, through-hole right-angle mounting, shrouded 4-wall design, and solder termination. All three parts are ROHS3 compliant with UL94 V-0 flammability rating.

Q: What is the difference in operating temperature range?

A: The CWN-501-20-0000 operates from -55°C to 125°C, while D3428-5002-AR and N3428-5002RB operate from -55°C to 105°C. Applications requiring operation above 105°C must use the CWN-501-20-0000.

Q: Are there current rating differences?

A: The CWN-501-20-0000 is rated for 1A per contact, while D3428-5002-AR and N3428-5002RB are rated for 1.75A per contact. The substitute parts support higher current applications.

Q: How do packaging formats affect selection?

A: CWN-501-20-0000 and N3428-5002RB are supplied in bulk packaging, while D3428-5002-AR is supplied in tray packaging. Packaging format does not affect connector performance or compatibility.

Q: What fastening mechanism differences exist?

A: The CWN-501-20-0000 uses latch lock/eject hooks with short fastening, while D3428-5002-AR and N3428-5002RB use push-pull fastening. Both mechanisms provide secure mating and are compatible with standard 0.100" (2.54mm) pitch receptacles.

Q: Are contact material and finish variations significant?

A: The CWN-501-20-0000 uses phosphor bronze contacts with nickel post finish, while the substitute parts use brass or copper alloy contacts with tin post finish. All parts feature gold-plated mating surfaces and meet ROHS3 compliance requirements. These material variations do not prevent functional substitution.

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