CWN-561-10-0021 Equivalent & Substitute Parts

Part Overview

The CWN-561-10-0021 is a rectangular connector header manufactured by CW Industries, designed for through-hole mounting applications. This shrouded 10-position header with 2.54mm pitch serves board-to-cable/wire interconnection requirements. The part is currently active in production with 731 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	10
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Termination	Solder
Operating Temperature	-55°C ~ 125°C
Current Rating	1A
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the CWN-561-10-0021 is determined by strict alignment of the following critical parameters:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 10
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole
Shrouding: Shrouded - 4 Wall
Termination: Solder
Material Flammability Rating: UL94 V-0

All three identified substitute parts (71918-010LF, D3793-6002-AR, N3793-6002RB) meet these core electrical and mechanical requirements. Variations in contact finish, contact material, fastening type, and insulation material do not preclude substitution when the primary mating and mounting characteristics remain constant.

Parameter Comparison

Parameter	CWN-561-10-0021	71918-010LF	D3793-6002-AR	N3793-6002RB
Manufacturer	CW Industries	Amphenol ICC (FCI)	3M	3M
Series	CWN	Quickie™	D3000	3000
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	10	10	10	10
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	Through Hole	Through Hole	Through Hole
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder	Solder
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Contact Length - Mating	0.240" (6.10mm)	0.228" (5.80mm)	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	0.681" (17.30mm)	0.685" (17.40mm)	0.680" (17.27mm)	0.680" (17.27mm)
Contact Shape	Circular	Square	Square	Square
Contact Finish - Mating	Gold	Gold, GXT™	Gold	Gold
Contact Finish - Post	Nickel	Tin	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Brass	Copper Alloy
Operating Temperature	-55°C ~ 125°C	Not specified	-55°C ~ 105°C	-55°C ~ 105°C
Current Rating	1A	Not specified	1.75A	1.75A
RoHS Status	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three substitute parts maintain active production status and comply with UL94 V-0 flammability requirements. The CWN-561-10-0021 operates across -55°C to 125°C with 1A current rating. Substitute parts D3793-6002-AR and N3793-6002RB operate within -55°C to 105°C and support 1.75A current rating, making them suitable for applications within the lower temperature range. The 71918-010LF does not specify operating temperature or current rating in the provided data.

Contact length variations exist across all parts. The CWN-561-10-0021 features 0.155" post length, while substitutes range from 0.112" to 0.114". Contact shape differs between the main part (circular) and all substitutes (square). These dimensional and geometric differences require board layout verification prior to implementation.

RoHS compliance is confirmed across all parts. The CWN-561-10-0021 and D3793-6002-AR are ROHS3 compliant, while 71918-010LF and N3793-6002RB are RoHS compliant. All parts carry MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: What are the core compatibility criteria for substituting the CWN-561-10-0021?

A: The substitute part must maintain 10 positions, 2 rows, 0.100" (2.54mm) pitch, through-hole mounting, shrouded 4-wall configuration, solder termination, and UL94 V-0 flammability rating. All identified substitutes meet these requirements.

Q: How do contact length differences affect substitution?

A: Contact length variations between the main part (0.155" post) and substitutes (0.112" to 0.114" post) impact PCB hole depth and mating force characteristics. Board design must accommodate the specific contact geometry of the selected part.

Q: Are there temperature operating range limitations with substitute parts?

A: The CWN-561-10-0021 operates to 125°C. Substitutes D3793-6002-AR and N3793-6002RB are rated to 105°C maximum. Applications requiring operation above 105°C must use the original part. The 71918-010LF does not specify operating temperature.

Q: What is the difference between circular and square contact shapes?

A: The CWN-561-10-0021 uses circular contacts, while all substitutes use square contacts. Contact shape affects mating force, insertion/withdrawal characteristics, and contact resistance. Board connector receptacles must be compatible with the selected contact geometry.

Q: Do all parts meet RoHS requirements?

A: Yes. The CWN-561-10-0021 and D3793-6002-AR are ROHS3 compliant. The 71918-010LF and N3793-6002RB are RoHS compliant. Both compliance levels are acceptable for most applications; verify specific project requirements.

Q: What packaging options are available?

A: CWN-561-10-0021 packaging is not specified. Substitute parts are available in Tube (71918-010LF), Tray (D3793-6002-AR), and Bulk (N3793-6002RB) packaging. Packaging selection depends on procurement volume and handling requirements.

Q: Are current ratings equivalent across all parts?

A: The CWN-561-10-0021 is rated 1A. Substitutes D3793-6002-AR and N3793-6002RB support 1.75A. The 71918-010LF does not specify current rating. Applications requiring 1A operation are compatible with all parts; higher current applications should use D3793-6002-AR or N3793-6002RB.

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