CWN-512-20-0000 Equivalent & Substitute Parts

Part Overview

The CWN-512-20-0000 is a rectangular connector header manufactured by CW Industries, designed for through-hole, right-angle board-to-cable/wire applications. This shrouded 20-position connector with 2.54mm pitch and male pin contacts operates across -55°C to 125°C and carries a 1A current rating. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component sourcing flexibility and inventory optimization.

Substiute Parts

CWN-512-20-0000

CW IndustriesIn Stock: 1023CWN-512-20-0000 Datasheet

Current PartRFQ

D3428-5002-AR

3MIn Stock: 1422D3428-5002-AR Datasheet

SimilarRFQ

N3428-5002RB

3MIn Stock: 1360N3428-5002RB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CWN-512-20-0000 is determined by strict alignment of the following parameters:

• Connector Type: Header
• Contact Type: Male Pin
• Pitch - Mating: 0.100" (2.54mm)
• Number of Positions: 20
• Number of Rows: 2
• Row Spacing - Mating: 0.100" (2.54mm)
• Mounting Type: Through Hole, Right Angle
• Shrouding: Shrouded - 4 Wall
• Contact Finish - Mating: Gold
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

The identified substitute parts D3428-5002-AR and N3428-5002RB meet these core electrical and mechanical criteria. Variations in contact material, contact finish thickness, insulation material composition, fastening type, and operating temperature upper limit do not preclude substitution when application requirements fall within the specified ranges of the substitute part.

Parameter Comparison

Engineering Selection Recommendations

All three parts—CWN-512-20-0000, D3428-5002-AR, and N3428-5002RB—maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The substitute parts from 3M (D3428-5002-AR and N3428-5002RB) provide higher current ratings (1.75A versus 1A) and support operating temperatures down to -55°C, matching the lower temperature bound of the primary part. Selection between these substitutes depends on application-specific requirements regarding contact post length, insulation height, fastening mechanism (latch lock versus push-pull), and maximum operating temperature ceiling. Applications requiring operation above 105°C must retain the CWN-512-20-0000 due to its 125°C upper temperature limit.

Frequently Asked Questions (FAQ)

Q: Can D3428-5002-AR or N3428-5002RB be used as direct replacements for CWN-512-20-0000?

A: Both 3M parts meet the core electrical and mechanical substitution criteria: 20-position, 2.54mm pitch, shrouded 4-wall headers with through-hole right-angle mounting and gold-plated mating contacts. Substitution is valid when application requirements do not exceed the operating temperature ceiling of 105°C and when the differences in contact post length (0.112" versus 0.155"), insulation height (0.340" versus 0.350"), and fastening type (push-pull versus latch lock) are compatible with the PCB layout and mating connector design.

Q: What are the key differences between the substitute parts?

A: D3428-5002-AR and N3428-5002RB are both 3M products with identical core specifications. The primary distinction is packaging: D3428-5002-AR is supplied in trays, while N3428-5002RB is supplied in bulk. Both feature square contact geometry, tin-plated posts, and push-pull fastening, contrasting with the CWN-512-20-0000's circular contacts, nickel-plated posts, and latch lock fastening.

Q: Does the difference in contact material affect electrical performance?

A: Contact material differences (phosphor bronze in CWN-512-20-0000 versus brass in D3428-5002-AR and copper alloy in N3428-5002RB) do not affect electrical performance for standard signal and power applications within the specified current ratings. All materials are suitable for the 1A to 1.75A operating range.

Q: Are there temperature limitations when substituting?

A: Yes. Applications requiring continuous operation above 105°C must use the CWN-512-20-0000, which is rated to 125°C. The 3M substitutes are limited to 105°C maximum operating temperature.

Q: How do packaging differences impact component selection?

A: D3428-5002-AR is supplied in trays, suitable for automated assembly processes. N3428-5002RB is supplied in bulk, appropriate for manual assembly or applications with lower volume requirements. Electrical and mechanical performance are identical; packaging choice depends on manufacturing process and inventory management strategy.