CWN-552-26-0021 Equivalent & Substitute Parts

Part Overview

The CWN-552-26-0021 is a rectangular connector header manufactured by CW Industries, designed for through-hole mounting applications. This 26-position, 2-row connector with 0.100" (2.54mm) pitch serves board-to-cable/wire interconnection requirements. The part is currently active in production with full position loading and shrouded 4-wall construction. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from qualified manufacturers.

Substiute Parts

CWN-552-26-0021

CW IndustriesIn Stock: 1235CWN-552-26-0021 Datasheet

Current PartRFQ

09185266924

HARTINGIn Stock: 124309185266924 Datasheet

SimilarRFQ

D3429-6002-AR

3MIn Stock: 1892D3429-6002-AR Datasheet

SimilarRFQ

N3429-6002RB

3MIn Stock: 1119N3429-6002RB Datasheet

SimilarRFQ

N3429-6003RB

3MIn Stock: 1031N3429-6003RB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CWN-552-26-0021 are qualified based on the following critical parameters that must match or exceed the main part specifications:

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

Allowable Variations:

• Fastening type: Latch Lock/Eject Hooks or Push-Pull mechanisms are both acceptable
• Contact length - post: Variations permitted within functional range
• Contact shape: Circular or Square acceptable
• Contact finish materials: Gold mating surface with Tin or Nickel post finish acceptable
• Insulation material: Thermoplastic, PBT, or PCT variants acceptable
• Insulation color: Variations permitted
• Operating temperature: Minimum -55°C ~ 105°C acceptable (main part extends to 125°C)
• Current rating: 1A or higher acceptable

The four substitute parts listed below meet these criteria and are functionally interchangeable with the CWN-552-26-0021 in standard applications.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts maintain active product status and meet the core functional and compliance requirements for direct substitution with the CWN-552-26-0021.

HARTING 09185266924 (SEK Series): This part matches the operating temperature range of the main part (-55°C ~ 125°C) and provides equivalent electrical performance. The Push-Pull fastening mechanism differs from the Latch Lock design but provides equivalent mechanical retention. Contact post length variation (0.114" vs. 0.090") is within acceptable tolerance for standard through-hole PCB applications. ROHS3 compliance and MSL 1 rating align with the main part.

3M D3429-6002-AR (D3000 Series): This part offers higher current rating (1.75A vs. 1A) and is supplied in tray packaging. Operating temperature range is reduced to -55°C ~ 105°C, which is acceptable for most applications but should be verified if the full -55°C ~ 125°C range is required. ROHS3 compliance and MSL 1 rating are maintained. Contact post length (0.112") is within functional range.

3M N3429-6002RB (3000 Series): This part provides equivalent specifications to D3429-6002-AR with higher current rating (1.75A) and is supplied in bulk packaging. Operating temperature range is -55°C ~ 105°C. RoHS compliance is confirmed. Contact post length (0.112") is within functional range. This part is cross-referenced with D3429-6002-AR in the substitute chain.

3M N3429-6003RB (3000 Series): This part is functionally equivalent to N3429-6002RB with extended contact post length (0.155" vs. 0.112"), providing increased mating depth for applications requiring deeper insertion. Operating temperature range is -55°C ~ 105°C. ROHS3 compliance and MSL 1 rating are maintained. Current rating is 1.75A.

Selection among these substitutes depends on specific application requirements: fastening mechanism preference, operating temperature ceiling, current requirements, packaging format, and contact post length specifications.

Frequently Asked Questions (FAQ)

Q: Can the HARTING 09185266924 be used as a direct replacement for the CWN-552-26-0021?

A: Yes. Both parts share identical pitch (0.100"), position count (26), row configuration (2), shrouding (4-wall), and mounting type (through-hole). The fastening mechanism differs (Push-Pull vs. Latch Lock), but both provide equivalent mechanical retention. Operating temperature ranges match (-55°C ~ 125°C). ROHS3 compliance and MSL 1 ratings are equivalent.

Q: What is the impact of the reduced operating temperature range on the 3M parts?

A: The 3M D3429-6002-AR, N3429-6002RB, and N3429-6003RB are rated to -55°C ~ 105°C, compared to the CWN-552-26-0021 at -55°C ~ 125°C. These parts are suitable for applications operating within the -55°C ~ 105°C range. Applications requiring operation above 105°C must use the CWN-552-26-0021 or HARTING 09185266924.

Q: Are there differences in contact post length among the substitute parts?

A: Yes. Contact post lengths vary: CWN-552-26-0021 (0.090"), HARTING 09185266924 (0.114"), 3M D3429-6002-AR and N3429-6002RB (0.112"), and 3M N3429-6003RB (0.155"). These variations affect PCB insertion depth and are acceptable within standard through-hole design tolerances. Selection should be based on specific PCB thickness and application requirements.

Q: What is the difference between N3429-6002RB and N3429-6003RB?

A: Both parts are functionally equivalent 3M 3000 Series connectors with identical electrical and mechanical specifications. The primary difference is contact post length: N3429-6002RB provides 0.112" post length, while N3429-6003RB provides 0.155" post length. Selection depends on PCB thickness and insertion depth requirements.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. All substitute parts are RoHS compliant. The CWN-552-26-0021, HARTING 09185266924, 3M D3429-6002-AR, and 3M N3429-6003RB are ROHS3 compliant. The 3M N3429-6002RB is RoHS compliant. All parts meet REACH requirements or are REACH unaffected.

Q: What packaging options are available?

A: The CWN-552-26-0021 is supplied in standard packaging (not specified). HARTING 09185266924 is supplied in bulk packaging. 3M D3429-6002-AR is supplied in tray packaging. 3M N3429-6002RB and N3429-6003RB are supplied in bulk packaging. Packaging selection may affect procurement lead times and handling requirements.

Q: Are the contact materials interchangeable?

A: All parts use copper-based contact materials (Phosphor Bronze, Copper Alloy, or Brass) with gold mating surfaces and tin or nickel post finishes. These materials are functionally equivalent for standard signal and power applications. Contact finish specifications meet industry standards for corrosion resistance and electrical performance.