CWN-552-34-0021 Equivalent & Substitute Parts

Part Overview

The CWN-552-34-0021 is a rectangular connector header manufactured by CW Industries, designed for through-hole mounting applications. This 34-position, 2-row connector with 0.100" (2.54mm) pitch provides board-to-cable/wire connectivity with shrouded 4-wall construction and solder termination. The part is currently active in production with 944 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-552-34-0021

CW IndustriesIn Stock: 1028CWN-552-34-0021 Datasheet

Current PartRFQ

09185346924

HARTINGIn Stock: 96909185346924 Datasheet

SimilarRFQ

N3431-6002RB

3MIn Stock: 850N3431-6002RB Datasheet

SimilarRFQ

N3431-6003RB

3MIn Stock: 1265N3431-6003RB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CWN-552-34-0021 are qualified based on the following critical parameters that must match or remain compatible:

• Connector Type & Contact Type: Header with Male Pin configuration
• Position Count & Row Configuration: 34 positions in 2-row arrangement
• Pitch Specifications: 0.100" (2.54mm) mating pitch and row spacing
• Mounting & Termination: Through-hole solder termination
• Shrouding: Shrouded 4-wall construction
• Operating Temperature: Minimum -55°C to 125°C range
• Compliance: ROHS3 Compliant, UL94 V-0 flammability rating

The three identified substitute parts—HARTING 09185346924, 3M N3431-6002RB, and 3M N3431-6003RB—satisfy these core electrical and mechanical requirements. Variations in contact post length, contact finish materials, fastening mechanisms, and insulation materials represent acceptable engineering tolerances within the rectangular connector category and do not compromise functional interchangeability in standard through-hole PCB applications.

Parameter Comparison

Engineering Selection Recommendations

All four parts—CWN-552-34-0021, HARTING 09185346924, 3M N3431-6002RB, and 3M N3431-6003RB—maintain active product status and full ROHS3 compliance with UL94 V-0 flammability certification. Selection between these parts is determined by application-specific thermal requirements and post-length constraints.

The CWN-552-34-0021 and HARTING 09185346924 support the full operating temperature range of -55°C to 125°C, making them suitable for applications requiring extended thermal performance. The 3M variants (N3431-6002RB and N3431-6003RB) operate within -55°C to 105°C, appropriate for standard industrial and commercial temperature environments.

Contact post length varies across the group: CWN-552-34-0021 at 0.090" (2.29mm) provides the shortest post, while N3431-6003RB extends to 0.155" (3.94mm). Post length selection depends on PCB thickness and solder joint depth requirements. The HARTING part at 0.114" (2.90mm) and 3M N3431-6002RB at 0.112" (2.84mm) represent intermediate options.

All parts are currently in active production with adequate inventory levels, supporting immediate procurement without supply chain risk.

Frequently Asked Questions (FAQ)

Q: Can CWN-552-34-0021 be directly replaced with HARTING 09185346924?

A: Yes. Both parts share identical mating pitch (0.100"), position count (34 in 2 rows), shrouding configuration (4-wall), and operating temperature range (-55°C to 125°C). The primary difference is contact post length: CWN-552-34-0021 at 0.090" versus HARTING at 0.114". This variation is acceptable for standard through-hole PCB applications where post length does not constrain solder joint formation.

Q: What is the impact of operating temperature differences between CWN-552-34-0021 and the 3M parts?

A: CWN-552-34-0021 and HARTING 09185346924 support -55°C to 125°C operation. The 3M variants (N3431-6002RB and N3431-6003RB) are rated -55°C to 105°C. For applications operating above 105°C, only CWN-552-34-0021 or HARTING 09185346924 are suitable. For standard industrial environments not exceeding 105°C, all four parts are functionally equivalent.

Q: How do contact post length variations affect PCB design?

A: Contact post length determines solder joint depth and is critical for PCB thickness compatibility. CWN-552-34-0021 (0.090") suits thinner PCBs, while N3431-6003RB (0.155") accommodates thicker boards. Intermediate lengths (HARTING at 0.114" and 3M N3431-6002RB at 0.112") provide flexibility for standard PCB thicknesses. Verify post length against your PCB thickness specification before selection.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. CWN-552-34-0021, HARTING 09185346924, 3M N3431-6002RB, and 3M N3431-6003RB are all ROHS3 compliant with UL94 V-0 flammability certification, meeting regulatory requirements for industrial and commercial applications.

Q: What packaging options are available?

A: CWN-552-34-0021 is supplied in standard packaging. HARTING 09185346924 is available in bulk packaging. 3M N3431-6002RB is supplied in tray packaging, while 3M N3431-6003RB is available in bulk packaging. Packaging selection may affect procurement quantity minimums and logistics considerations.

Q: Can these parts be used interchangeably in existing designs?

A: Interchangeability is confirmed for the core electrical and mechanical functions: 34-position, 2-row header with 0.100" pitch, through-hole solder termination, and shrouded 4-wall construction. Verify contact post length compatibility with your PCB design and operating temperature requirements before substitution.