CWN-512-26-0021 Equivalent & Substitute Parts

Part Overview

The CWN-512-26-0021 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 currently active in production with 749 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component sourcing flexibility and supply chain continuity.

Substiute Parts

CWN-512-26-0021

CW IndustriesIn Stock: 790CWN-512-26-0021 Datasheet

Current PartRFQ

N3429-5002RB

3MIn Stock: 2315N3429-5002RB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The N3429-5002RB from 3M qualifies as a substitute based on the following critical parameters:

• Connector Type & Contact Configuration: Both parts are header connectors with male pin contacts
• Position Count & Row Configuration: Both feature 26 positions arranged in 2 rows
• Pitch Specification: Both maintain 0.100" (2.54mm) mating pitch and row spacing
• Mounting & Termination: Both are through-hole, right-angle mounted with solder termination
• Shrouding Design: Both employ shrouded 4-wall construction
• Compliance Status: Both are ROHS3 compliant with MSL 1 (Unlimited) rating

Substitution is valid where these core parameters align. Differences in contact material, insulation material, fastening mechanism, and operating temperature range represent design variations that may affect specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both parts maintain active product status and ROHS3 compliance with identical MSL ratings. Selection between CWN-512-26-0021 and N3429-5002RB depends on application-specific requirements:

The CWN-512-26-0021 supports an operating temperature range of -55°C to 125°C, providing extended high-temperature capability. The N3429-5002RB operates within -55°C to 105°C, with a higher current rating of 1.75A compared to 1A for the CW Industries part. Contact post length differs by 0.043" (1.10mm), which may affect PCB layout and mating depth considerations. Both parts carry UL94 V-0 flammability certification and are suitable for board-to-cable or board-to-board applications with identical pitch and position configurations.

Frequently Asked Questions (FAQ)

Q: Can N3429-5002RB directly replace CWN-512-26-0021 in existing designs?

A: Direct substitution is mechanically and electrically feasible where the application operates within -55°C to 105°C and does not exceed 1.75A per contact. The identical 26-position, 2-row configuration with 0.100" pitch ensures mechanical compatibility. Contact post length variation (0.155" vs. 0.112") must be evaluated against PCB hole depth and mating connector specifications.

Q: What are the key differences between these parts?

A: Primary differences include contact material (Phosphor Bronze vs. Copper Alloy), insulation material composition, current rating (1A vs. 1.75A), maximum operating temperature (125°C vs. 105°C), and fastening mechanism (Latch Lock/Eject Hooks vs. Push-Pull). Mating contact length and finish specifications are identical.

Q: Are both parts RoHS compliant?

A: Yes, both CWN-512-26-0021 and N3429-5002RB are ROHS3 compliant with MSL 1 (Unlimited) ratings, suitable for standard manufacturing and storage conditions without moisture sensitivity constraints.

Q: What packaging options are available?

A: CWN-512-26-0021 is available in standard packaging with 749 units in stock. N3429-5002RB is supplied in bulk packaging with 2290 units in stock.

Q: How do the shrouding and fastening mechanisms differ?

A: Both parts feature shrouded 4-wall construction. CWN-512-26-0021 uses Latch Lock/Eject Hooks with long fastening, while N3429-5002RB employs a Push-Pull fastening mechanism. Both designs provide secure mating and keying slot features.