CWN-602-20-0021 Equivalent & Substitute Parts

Part Overview

The CWN-602-20-0021 is a rectangular connector header manufactured by CW Industries, designed for through-hole, right-angle 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 778 units in stock. Substitute parts are identified to address inventory availability, lead time constraints, or specific application requirements while maintaining electrical and mechanical compatibility within defined parameter tolerances.

Substiute Parts

CWN-602-20-0021

CW IndustriesIn Stock: 818CWN-602-20-0021 Datasheet

Current PartRFQ

D3428-5002-AR

3MIn Stock: 1422D3428-5002-AR Datasheet

SimilarRFQ

N3428-5002RB

3MIn Stock: 1360N3428-5002RB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CWN-602-20-0021 are qualified based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

• 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
• Moisture sensitivity level: 1 (Unlimited)

Identified Substitutes:

• D3428-5002-AR (3M, Series D3000)
• N3428-5002RB (3M, Series 3000)

Both substitute parts maintain the core electrical and mechanical interface specifications required for board-to-cable/wire applications with identical pitch, position count, and mounting configuration.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain ROHS3 compliance and UL94 V-0 flammability rating, meeting regulatory requirements for industrial and commercial applications. The CWN-602-20-0021 operates across a wider temperature range (-55°C to 125°C) compared to the 3M substitutes (-55°C to 105°C), making the CW Industries part suitable for applications requiring extended high-temperature performance.

The D3428-5002-AR and N3428-5002RB both support higher current ratings (1.75A versus 1A), providing additional margin for power distribution applications. Contact post length differs between the main part (0.090") and substitutes (0.112"), requiring PCB design verification for solder joint clearance and mechanical fit.

Fastening mechanism differs: the CWN-602-20-0021 uses latch lock/eject hooks, while both 3M substitutes employ push-pull fastening. This distinction affects mating/unmating force characteristics and connector retention strategy in the application.

Selection should prioritize the CWN-602-20-0021 for applications requiring the full -55°C to 125°C operating range. The 3M alternatives are suitable for applications within the -55°C to 105°C range where higher current capacity or alternative fastening mechanisms are acceptable.

Frequently Asked Questions (FAQ)

Q: Can D3428-5002-AR or N3428-5002RB be used as direct replacements for CWN-602-20-0021?

A: Both parts share identical mating pitch (0.100"), position count (20), row configuration (2 rows), mounting type (through hole, right angle), and shrouding (4 wall). However, differences in contact post length (0.112" versus 0.090"), fastening type (push-pull versus latch lock), and operating temperature range (-55°C to 105°C versus -55°C to 125°C) require application-specific evaluation before substitution.

Q: What is the impact of different contact post lengths?

A: The CWN-602-20-0021 has a 0.090" contact post length, while both 3M substitutes have 0.112" post length. This 0.022" difference affects solder joint formation, PCB pad design, and mechanical clearance. PCB layout must be verified to accommodate the longer post length without interference with adjacent components or internal traces.

Q: How do fastening mechanisms differ between these parts?

A: The CWN-602-20-0021 uses latch lock/eject hooks with long engagement, providing positive mechanical retention. The D3428-5002-AR and N3428-5002RB use push-pull fastening, which offers different mating/unmating force characteristics and connector retention behavior. Application requirements for connector security and field serviceability should guide selection.

Q: Are there temperature limitations when substituting parts?

A: The CWN-602-20-0021 operates from -55°C to 125°C, while both 3M substitutes operate from -55°C to 105°C. Applications requiring operation above 105°C must use the CW Industries part. For applications within the -55°C to 105°C range, either part is acceptable from a thermal perspective.

Q: What is the significance of contact material differences?

A: The CWN-602-20-0021 uses phosphor bronze contacts with nickel post finish, while D3428-5002-AR uses brass contacts with tin post finish, and N3428-5002RB uses copper alloy contacts with tin post finish. These material compositions affect electrical conductivity, corrosion resistance, and solderability. All three combinations are suitable for standard board-to-cable/wire applications with gold-plated mating surfaces.

Q: Do packaging differences affect part selection?

A: The D3428-5002-AR is supplied in tray packaging, while N3428-5002RB is supplied in bulk packaging. Packaging choice affects handling, storage, and assembly line integration but does not impact electrical or mechanical performance. Selection should align with manufacturing process requirements and inventory management practices.

Q: Are all three parts RoHS3 compliant?

A: Yes, the CWN-602-20-0021, D3428-5002-AR, and N3428-5002RB are all ROHS3 compliant with moisture sensitivity level 1 (unlimited), meeting regulatory requirements for commercial and industrial applications without additional handling precautions.