CWN-502-20-0000 Equivalent & Substitute Parts

Part Overview

The CWN-502-20-0000 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 support procurement flexibility, design alternatives, and supply chain continuity for applications requiring equivalent electrical and mechanical performance.

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
Operating Temperature	-55°C ~ 125°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the CWN-502-20-0000 is determined by the following critical parameters:

Connector Type & Contact Configuration: Header with male pins
Position Count & Row Configuration: 20 positions in 2 rows
Pitch Specification: 0.100" (2.54mm) mating pitch and row spacing
Mounting & Orientation: Through-hole, right-angle mounting
Shrouding: 4-wall shrouded design
Termination Method: Solder termination
Compliance: ROHS3 compliant, UL94 V-0 flammability rating, MSL 1

The identified substitute parts D3428-5002-AR and N3428-5002RB meet these core electrical and mechanical requirements. Variations in contact material, contact finish specifications, fastening type, and maximum operating temperature represent acceptable engineering trade-offs within the rectangular connector category for equivalent functional performance.

Parameter Comparison

Parameter	CWN-502-20-0000 (CW Industries)	D3428-5002-AR (3M)	N3428-5002RB (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)
Operating Temperature	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C
Current Rating	1A	1.75A	1.75A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts—CWN-502-20-0000, D3428-5002-AR, and N3428-5002RB—are active products with ROHS3 compliance and UL94 V-0 flammability certification. Selection between these parts is based on the following factors:

CWN-502-20-0000 (Primary): Supports the extended operating temperature range of -55°C to 125°C. Use this part when high-temperature performance is required.

D3428-5002-AR (3M, Tray Packaging): Operates within -55°C to 105°C. Offers higher current rating (1.75A) and includes mounting flange feature. Suitable for standard temperature applications with higher current demands.

N3428-5002RB (3M, Bulk Packaging): Operates within -55°C to 105°C. Provides higher current rating (1.75A) and thicker mating contact finish (30.0µin). Bulk packaging format supports high-volume procurement.

All parts maintain equivalent mechanical fit, electrical connectivity, and regulatory compliance for board-to-cable/wire applications with 20-position, 2.54mm pitch requirements.

Frequently Asked Questions (FAQ)

Q: Can D3428-5002-AR or N3428-5002RB be used as direct replacements for CWN-502-20-0000?

A: Yes, both 3M parts are functionally equivalent for applications operating within the -55°C to 105°C temperature range. The CWN-502-20-0000 is required only when the extended upper temperature limit of 125°C is necessary.

Q: What is the difference between D3428-5002-AR and N3428-5002RB?

A: Both parts share identical electrical and mechanical specifications. The primary differences are packaging format (D3428-5002-AR ships in trays; N3428-5002RB ships in bulk) and mating contact finish thickness (D3428-5002-AR: 10.0µin; N3428-5002RB: 30.0µin). Select based on procurement volume and packaging requirements.

Q: Are there differences in fastening type between these parts?

A: Yes. The CWN-502-20-0000 uses latch lock/eject hooks with long fastening type. Both 3M substitutes (D3428-5002-AR and N3428-5002RB) use push-pull fastening. Verify mating connector compatibility before selection.

Q: Do all three parts support the same current rating?

A: No. The CWN-502-20-0000 is rated for 1A, while both 3M substitutes are rated for 1.75A. Applications requiring higher current capacity benefit from the 3M alternatives.

Q: Are all parts RoHS3 compliant?

A: Yes. CWN-502-20-0000, D3428-5002-AR, and N3428-5002RB are all ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level).

Q: What is the impact of contact material differences?

A: CWN-502-20-0000 uses phosphor bronze contacts; D3428-5002-AR uses brass; N3428-5002RB uses copper alloy. All materials are suitable for solder termination and gold-plated mating surfaces. Material selection does not affect functional compatibility.

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