CWN-511-50-0021 Equivalent & Substitute Parts

Part Overview

The CWN-511-50-0021 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 serves board-to-cable/wire interconnection requirements. The part is currently active in production with 890 units in stock. Substitute parts are identified to address inventory availability, lead time considerations, or specific application requirements while maintaining electrical and mechanical compatibility.

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
Contact Length - Mating	0.240" (6.10mm)
Operating Temperature Range	-55°C ~ 125°C
Current Rating	1A
RoHS Status	ROHS3 Compliant
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility for the CWN-511-50-0021 is determined by the following critical parameters:

Connector Type & Contact Configuration: Header with male pins
Position Count & Row Configuration: 50 positions, 2 rows
Pitch Specification: 0.100" (2.54mm) mating pitch and row spacing
Mounting Style: Through hole, right-angle orientation
Shrouding: Shrouded 4-wall design
Mating Contact Length: 0.240" (6.10mm)
Termination Method: Solder
Compliance: ROHS3 compliant, UL94 V-0 flammability rating

The identified substitute parts D3433-5002-AR (3M) and N3433-5002RB (3M) meet these core electrical and mechanical requirements. Variations in contact material, contact finish thickness, fastening type, and maximum operating temperature represent acceptable engineering trade-offs within the rectangular connector category.

Parameter Comparison

Parameter	CWN-511-50-0021 (CW Industries)	D3433-5002-AR (3M)	N3433-5002RB (3M)
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	50	50	50
Number of Rows	2	2	2
Pitch - Mating	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)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Termination	Solder	Solder	Solder
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C
Current Rating (Amps)	1A	1.75A	1.75A
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99	EAR99
HTSUS Code	8536.69.4040	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

All three parts maintain active product status and comply with ROHS3 or RoHS standards and UL94 V-0 flammability requirements. The CWN-511-50-0021 supports an operating temperature range of -55°C to 125°C, while both 3M substitutes (D3433-5002-AR and N3433-5002RB) operate to -55°C to 105°C. Applications requiring operation above 105°C must use the CWN-511-50-0021.

The 3M substitutes provide higher current ratings (1.75A versus 1A), which represents a performance advantage for higher-current applications. Both substitute parts are available in inventory: D3433-5002-AR (843 units, tray packaging) and N3433-5002RB (1041 units, bulk packaging).

Selection between D3433-5002-AR and N3433-5002RB depends on packaging requirements and contact finish specifications. Both maintain identical electrical and mechanical compatibility with the CWN-511-50-0021 for standard applications within the 105°C temperature limit.

Frequently Asked Questions (FAQ)

Q: Can D3433-5002-AR or N3433-5002RB be used as direct replacements for CWN-511-50-0021?

A: Yes, both parts are electrically and mechanically compatible for applications operating within -55°C to 105°C. The 50-position, 2-row configuration, 0.100" pitch, through-hole right-angle mounting, and shrouded 4-wall design are identical across all three parts.

Q: What is the temperature limitation when using 3M substitutes?

A: The D3433-5002-AR and N3433-5002RB are rated to -55°C to 105°C, compared to the CWN-511-50-0021 rated to -55°C to 125°C. Applications requiring sustained operation above 105°C must use the CW Industries part.

Q: Are there differences in current-carrying capacity?

A: Yes. The CWN-511-50-0021 is rated at 1A per contact, while both 3M substitutes are rated at 1.75A per contact. For applications requiring higher current capacity, the 3M parts provide additional margin.

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

A: D3433-5002-AR is supplied in tray packaging (843 units in stock), while N3433-5002RB is supplied in bulk packaging (1041 units in stock). The CWN-511-50-0021 packaging specification is not provided in the available data.

Q: Are all parts RoHS compliant?

A: Yes. The CWN-511-50-0021 and D3433-5002-AR are ROHS3 compliant. The N3433-5002RB is RoHS compliant. All three parts are REACH unaffected or unaffected by REACH regulations.

Q: Do the substitute parts have the same contact finish specifications?

A: Contact finish materials differ. The CWN-511-50-0021 uses gold mating finish (30.0µin) and nickel post finish (50.0µin). The D3433-5002-AR uses gold mating finish (10.0µin) and tin post finish (39.4µin). The N3433-5002RB uses gold mating finish (30.0µin) and tin post finish (200.0µin). These variations are within acceptable standards for rectangular connector applications.

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