CWN-552-20-0021 Equivalent & Substitute Parts

Part Overview

The CWN-552-20-0021 is a rectangular connector header manufactured by CW Industries, designed for through-hole mounting applications. This shrouded 20-position header with 2.54mm pitch serves board-to-cable/wire interconnection requirements. The part is currently active in production with full inventory availability. Substitute parts may be required due to supply constraints, regional availability, or specific application requirements where alternative electrical and mechanical characteristics remain within acceptable parameters.

Substiute Parts

CWN-552-20-0021

CW IndustriesIn Stock: 1229CWN-552-20-0021 Datasheet

Current PartRFQ

N3428-6002RB

3MIn Stock: 1411N3428-6002RB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The N3428-6002RB from 3M qualifies as a substitute based on the following critical parameters that determine functional compatibility:

Matching 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
• Shrouding: Shrouded - 4 Wall
• Termination: Solder
• Material flammability rating: UL94 V-0
• RoHS status: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

Allowable Variations:

• Operating temperature range: CWN-552-20-0021 operates -55°C ~ 125°C; N3428-6002RB operates -55°C ~ 105°C. The substitute has a narrower upper temperature limit.
• Current rating: CWN-552-20-0021 rated 1A; N3428-6002RB rated 1.75A. The substitute has higher current capacity.
• Contact shape: CWN-552-20-0021 uses circular contacts; N3428-6002RB uses square contacts.
• Fastening type: CWN-552-20-0021 uses Latch Lock/Eject Hooks; N3428-6002RB uses Push-Pull.
• Contact finish - post: CWN-552-20-0021 uses Nickel; N3428-6002RB uses Tin.
• Insulation material: CWN-552-20-0021 uses Thermoplastic; N3428-6002RB uses PCT/Polyester Glass Filled.

Parameter Comparison

Engineering Selection Recommendations

Both the CWN-552-20-0021 and N3428-6002RB are active production parts with ROHS3 compliance and UL94 V-0 flammability ratings. Selection between these parts depends on application-specific requirements:

Select CWN-552-20-0021 when:

• Operating temperature range extends to 125°C
• Latch Lock/Eject Hook fastening mechanism is required
• Circular contact geometry is specified in design

Select N3428-6002RB when:

• Operating temperature maximum of 105°C is acceptable
• Push-Pull fastening mechanism is preferred
• Higher current capacity (1.75A vs 1A) provides design margin
• Square contact geometry is compatible with mating connector design

Both parts maintain identical pitch spacing (2.54mm), position count (20), row configuration (2), and mating contact length (6.10mm), ensuring mechanical and electrical compatibility at the interconnection interface.

Frequently Asked Questions (FAQ)

Q: Can N3428-6002RB replace CWN-552-20-0021 in all applications?

A: Substitution is valid only when the application operating temperature does not exceed 105°C. The CWN-552-20-0021 supports operation to 125°C, while the N3428-6002RB maximum is 105°C. Verify your application's thermal requirements before substitution.

Q: What are the differences in fastening mechanisms between these parts?

A: The CWN-552-20-0021 uses Latch Lock/Eject Hooks with long engagement, while the N3428-6002RB uses Push-Pull fastening. These are mechanically distinct connection methods. Confirm your mating connector is compatible with the fastening type of your selected part.

Q: Are the contact geometries interchangeable?

A: The CWN-552-20-0021 features circular male pin contacts, while the N3428-6002RB features square male pin contacts. Contact geometry affects mating connector compatibility. Verify your mating connector socket design accepts the contact shape of your selected part.

Q: Do both parts meet the same compliance standards?

A: Yes. Both CWN-552-20-0021 and N3428-6002RB are ROHS3 compliant, UL94 V-0 rated, and have MSL 1 (Unlimited) moisture sensitivity levels. Both are suitable for applications requiring these certifications.

Q: What is the current-carrying difference between these parts?

A: The CWN-552-20-0021 is rated 1A per contact, while the N3428-6002RB is rated 1.75A per contact. If your circuit requires current capacity above 1A, the N3428-6002RB provides additional margin.

Q: Are the mating contact lengths identical?

A: Yes. Both parts have a mating contact length of 0.240" (6.10mm), ensuring compatible engagement depth with standard 2.54mm pitch mating connectors.