CWN-502-26-0021 Equivalent & Substitute Parts

Part Overview

The CWN-502-26-0021 is a rectangular connector header manufactured by CW Industries, designed for through-hole, right-angle mounting applications. This 26-position connector operates at 0.100" (2.54mm) pitch with shrouded 4-wall construction and solder termination. The part is Active status and widely used in board-to-cable/wire interconnect applications requiring reliable male pin contact interfaces.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part's specifications, enabling direct replacement in compatible applications while maintaining circuit integrity and mechanical fit.

Substiute Parts

CWN-502-26-0021

CW IndustriesIn Stock: 896CWN-502-26-0021 Datasheet

Current PartRFQ

N3429-5002RB

3MIn Stock: 2315N3429-5002RB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CWN-502-26-0021 is determined by strict alignment of the following critical parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (26)
• Number of rows (2)
• Pitch - mating (0.100" / 2.54mm)
• Row spacing - mating (0.100" / 2.54mm)
• Mounting type (Through Hole, Right Angle)
• Shrouding configuration (Shrouded - 4 Wall)
• Termination method (Solder)
• Contact finish - mating (Gold)
• Material flammability rating (UL94 V-0)

The N3429-5002RB from 3M meets all critical substitution criteria, maintaining electrical and mechanical compatibility within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

Both the CWN-502-26-0021 and N3429-5002RB are Active status products with ROHS3 compliance and UL94 V-0 flammability ratings. Selection between these parts is based on application-specific requirements:

The CWN-502-26-0021 operates across a wider temperature range (-55°C to 125°C) compared to the N3429-5002RB (-55°C to 105°C). Applications requiring operation above 105°C necessitate the CW Industries part.

The N3429-5002RB provides higher current rating (1.75A versus 1A) and greater contact post finish thickness (200.0µin versus 50.0µin), offering enhanced durability in high-cycle insertion/extraction environments.

Both parts maintain identical mating contact specifications, pitch, row spacing, and shrouding configuration, ensuring mechanical and electrical interchangeability within their respective operating temperature and current parameters.

Frequently Asked Questions (FAQ)

Q: Can the N3429-5002RB replace the CWN-502-26-0021 in all applications?

A: The N3429-5002RB is mechanically and electrically compatible for applications operating within -55°C to 105°C. Applications requiring operation above 105°C must use the CWN-502-26-0021 due to its extended temperature rating to 125°C.

Q: What are the differences in contact geometry between these parts?

A: The CWN-502-26-0021 features circular contact pins, while the N3429-5002RB uses square contact pins. Both maintain identical mating contact length (0.240" / 6.10mm) and pitch specifications (0.100" / 2.54mm), ensuring compatibility with standard 2.54mm pitch receptacles.

Q: How do the current ratings differ?

A: The CWN-502-26-0021 is rated for 1A per contact, while the N3429-5002RB is rated for 1.75A per contact. Applications requiring higher current capacity per contact should specify the N3429-5002RB.

Q: Are both parts RoHS compliant?

A: Yes, both the CWN-502-26-0021 and N3429-5002RB are ROHS3 compliant and carry UL94 V-0 flammability ratings.

Q: What is the difference in insulation material?

A: The CWN-502-26-0021 uses thermoplastic insulation, while the N3429-5002RB uses polycyclohexylenedimethylene terephthalate (PCT) with polyester and glass filling. Both materials meet UL94 V-0 requirements.

Q: Do these connectors have keying features?

A: The CWN-502-26-0021 includes a keying slot. The N3429-5002RB includes both a keying slot and mounting flange for enhanced mechanical retention.