CWN-512-50-0021 Equivalent & Substitute Parts

Part Overview

The CWN-512-50-0021 is a rectangular connector header manufactured by CW Industries, designed for through-hole, right-angle mounting applications. This 50-position, 2-row connector with 0.100" (2.54mm) pitch is configured for board-to-cable/wire connections with solder termination and latch lock/eject fastening. The part maintains Active product status with full inventory availability (834 pcs in stock). Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part's specifications, enabling direct replacement in compatible applications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	50
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Operating Temperature Range	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment of the following critical parameters:

Connector type (Header)
Contact type (Male Pin)
Number of positions (50)
Number of rows (2)
Pitch - mating (0.100" / 2.54mm)
Row spacing - mating (0.100" / 2.54mm)
Mounting type (Through Hole, Right Angle)
Shrouding configuration (Shrouded - 4 Wall)
Termination method (Solder)
Material flammability rating (UL94 V-0)
RoHS compliance status

All three identified substitute parts meet these core electrical and mechanical criteria. Variations in contact length, insulation height, contact finish specifications, and fastening type do not preclude substitution when the primary functional parameters remain constant.

Parameter Comparison

Parameter	CWN-512-50-0021 (CW Industries)	09185506923 (HARTING)	D3433-5002-AR (3M)	N3433-5002RB (3M)
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	50	50	50	50
Number of Rows	2	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder	Solder
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Contact Length - Post	0.155" (3.94mm)	0.114" (2.90mm)	0.112" (2.84mm)	0.112" (2.84mm)
Insulation Height	0.350" (8.89mm)	0.335" (8.51mm)	0.340" (8.64mm)	0.340" (8.64mm)
Contact Finish - Mating	Gold	Gold	Gold	Gold
Contact Finish - Post	Nickel	Tin	Tin	Tin
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All three substitute parts maintain Active product status and comply with RoHS requirements, ensuring regulatory alignment with the CWN-512-50-0021. The HARTING 09185506923 and 3M D3433-5002-AR and N3433-5002RB connectors share identical core electrical and mechanical specifications across pitch, position count, mounting configuration, and shrouding design.

The CWN-512-50-0021 and HARTING 09185506923 both support the full operating temperature range of -55°C to 125°C. The 3M variants (D3433-5002-AR and N3433-5002RB) operate within -55°C to 105°C, which is suitable for applications not requiring the extended upper temperature limit.

Contact post length variations (0.155" for CWN-512-50-0021 versus 0.114" to 0.112" for substitutes) and insulation height differences (0.350" to 0.335") are within acceptable mechanical tolerances for standard through-hole PCB mounting. Contact finish post material differs (Nickel on CWN-512-50-0021 versus Tin on substitutes), with both finishes providing equivalent solder joint reliability.

Frequently Asked Questions (FAQ)

Q: Can the HARTING 09185506923 directly replace the CWN-512-50-0021 in all applications?

A: Yes, for applications operating within -55°C to 125°C. The HARTING part matches all critical electrical and mechanical parameters, including pitch, position count, mounting type, and shrouding configuration. Both parts maintain identical mating contact length and support the same solder termination process.

Q: What is the impact of the contact post length difference between the CWN-512-50-0021 (0.155") and the 3M substitutes (0.112")?

A: Contact post length affects solder joint formation depth on the PCB. The CWN-512-50-0021 provides longer post engagement, while the 3M parts (D3433-5002-AR and N3433-5002RB) use shorter posts. Both configurations are compatible with standard through-hole PCB designs when solder pad dimensions are appropriately specified.

Q: Are there temperature limitations when substituting with 3M parts?

A: The 3M D3433-5002-AR and N3433-5002RB operate to 105°C maximum, compared to 125°C for the CWN-512-50-0021 and HARTING 09185506923. Applications requiring sustained operation above 105°C must use the CWN-512-50-0021 or HARTING substitute.

Q: What packaging options are available for these substitute parts?

A: CWN-512-50-0021 is supplied in standard packaging. HARTING 09185506923 is available in Bulk packaging. 3M D3433-5002-AR is supplied in Tray packaging, while N3433-5002RB is available in Bulk packaging. Packaging selection does not affect electrical or mechanical compatibility.

Q: Do all parts meet the same compliance standards?

A: All parts are UL94 V-0 rated and RoHS compliant. The CWN-512-50-0021, HARTING 09185506923, and 3M D3433-5002-AR are ROHS3 compliant. The 3M N3433-5002RB is RoHS compliant. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating.

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