CWN-350-40-0021 Equivalent & Substitute Parts

Part Overview

The CWN-350-40-0021 is a rectangular connector header manufactured by CW Industries, designed for through-hole mounting applications. This 40-position, 2-row connector with 0.100" (2.54mm) pitch serves board-to-cable/wire interconnection requirements. The part is active in production status with 786 units currently in stock. Substitute parts are identified to address inventory availability, lead time considerations, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

CWN-350-40-0021

CW IndustriesIn Stock: 885CWN-350-40-0021 Datasheet

Current PartRFQ

09185406924

HARTINGIn Stock: 114409185406924 Datasheet

SimilarRFQ

09185407924

HARTINGIn Stock: 86209185407924 Datasheet

SimilarRFQ

71918-040LF

Amphenol ICC (FCI)In Stock: 142271918-040LF Datasheet

SimilarRFQ

N3432-6002RB

3MIn Stock: 900N3432-6002RB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CWN-350-40-0021 is determined by strict alignment with the following critical parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Number of Positions: 40
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Termination: Solder
• Shrouding: Shrouded - 4 Wall
• Fastening Type: Push-Pull
• Material Flammability Rating: UL94 V-0
• Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts meet these core electrical and mechanical parameters. Variations in contact geometry, insulation material composition, contact finish specifications, and operating temperature ranges are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and comply with RoHS and REACH requirements. Selection between the CWN-350-40-0021 and its substitutes is based on the following considerations:

CWN-350-40-0021 (CW Industries): Primary choice for applications requiring the specified operating temperature range of -55°C to 125°C and nickel post finish. Circular contact geometry and phosphor bronze material provide the original design specification.

09185406924 and 09185407924 (HARTING SEK Series): Both parts maintain identical electrical and mechanical compatibility with extended operating temperature range to 125°C. Square contact geometry and PBT glass-filled insulation material differ from the original. Higher inventory availability (1116 and 835 units respectively) supports lead time requirements.

71918-040LF (Amphenol ICC Quickie™ Series): Offers highest inventory availability (1395 units) and tube packaging option. Operating temperature range is not specified. Contact length mating dimension of 0.228" (5.80mm) differs from the 0.240" specification of the main part. Phosphor bronze contact material aligns with the original design.

N3432-6002RB (3M 3000 Series): Supports higher current rating of 1.75A compared to the 1A specification of the main part. Operating temperature range limited to -55°C to 105°C. Square contact geometry and copper alloy material differ from the original. Tin post finish and PCT/polyester glass-filled insulation material provide alternative material composition.

Frequently Asked Questions (FAQ)

Q: Can I use 09185406924 or 09185407924 as direct replacements for CWN-350-40-0021?

A: Yes. Both HARTING parts maintain identical pitch, position count, row configuration, mounting type, termination method, and shrouding. Operating temperature range extends to 125°C matching the original. Contact geometry differs (square vs. circular) and insulation material composition differs (PBT glass-filled vs. thermoplastic), but these variations do not affect substitution eligibility based on the specified parameters.

Q: What is the difference between 09185406924 and 09185407924?

A: Both parts are identical in electrical and mechanical specifications. They are both HARTING SEK series headers with 40 positions, 2 rows, 2.54mm pitch, and equivalent dimensional characteristics. Selection between them is based on inventory availability or packaging requirements.

Q: Is 71918-040LF compatible with CWN-350-40-0021?

A: Yes. The 71918-040LF meets all core substitution criteria including connector type, contact type, position count, row configuration, pitch, mounting type, termination, shrouding, and fastening type. The contact length mating dimension of 0.228" (5.80mm) is slightly shorter than the 0.240" (6.10mm) specification of the main part. Operating temperature range is not specified for this part.

Q: What are the key differences between N3432-6002RB and CWN-350-40-0021?

A: The 3M N3432-6002RB maintains core electrical and mechanical compatibility. Notable differences include: operating temperature range limited to -55°C to 105°C (vs. -55°C to 125°C), higher current rating of 1.75A (vs. 1A), square contact geometry (vs. circular), copper alloy contact material (vs. phosphor bronze), and different insulation material composition (PCT/polyester glass-filled vs. thermoplastic).

Q: Does packaging type affect substitution compatibility?

A: Packaging type (bulk vs. tube) does not affect electrical or mechanical compatibility. Selection is based on assembly process requirements and handling procedures. The 71918-040LF is supplied in tube packaging while other substitutes are supplied in bulk packaging.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are RoHS compliant. The CWN-350-40-0021, 09185406924, and 09185407924 are ROHS3 compliant. The 71918-040LF and N3432-6002RB are RoHS compliant. All parts are REACH unaffected.

Q: Which substitute part has the highest current rating?

A: The N3432-6002RB (3M) has a current rating of 1.75A, compared to 1A for the CWN-350-40-0021. Current ratings are not specified for the HARTING 09185406924, 09185407924, or Amphenol ICC 71918-040LF parts.