CWN-551-26-0021 Equivalent & Substitute Parts

Part Overview

The CWN-551-26-0021 is a rectangular connector header manufactured by CW Industries, designed for through-hole mounting applications. This 26-position, 2-row connector with 0.100" (2.54mm) pitch provides board-to-cable/wire connectivity with shrouded 4-wall construction and solder termination. The part is currently active in production with 849 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component sourcing flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	CWN-551-26-0021
Manufacturer	CW Industries
Category	Rectangular Connectors
Connector Type	Header
Contact Type	Male Pin
Number of Positions	26
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
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the CWN-551-26-0021 are qualified based on the following critical parameters that must align with the main part:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 26
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
Style: Board to Cable/Wire or Board to Board or Cable
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant or RoHS Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

The three identified substitute parts—09185266924 (HARTING), N3429-6002RB (3M), and N3429-6003RB (3M)—meet all critical substitution criteria. Variations in contact length, contact finish thickness, fastening type, and insulation material do not preclude substitution when the core electrical and mechanical interface parameters remain constant.

Parameter Comparison

Parameter	CWN-551-26-0021 (CW Industries)	09185266924 (HARTING)	N3429-6002RB (3M)	N3429-6003RB (3M)
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	26	26	26	26
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
Termination	Solder	Solder	Solder	Solder
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Operating Temperature	-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	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.240" (6.10mm)
Insulation Height	0.681" (17.30mm)	0.681" (17.30mm)	0.680" (17.27mm)	0.680" (17.27mm)
Contact Finish - Mating	Gold	Gold	Gold	Gold
Contact Material	Phosphor Bronze	Copper Alloy	Copper Alloy	Copper Alloy
Fastening Type	Latch Lock/Eject Hooks, Short	Push-Pull	Push-Pull	Push-Pull
Features	Keying Slot	Keying Slot, Mounting Flange	Keying Slot, Mounting Flange	Keying Slot, Mounting Flange

Engineering Selection Recommendations

All three substitute parts maintain active product status and comply with ROHS3 or RoHS standards, ensuring regulatory alignment with the CWN-551-26-0021. The HARTING 09185266924 operates across the full temperature range (-55°C ~ 125°C) matching the main part specification, while both 3M variants (N3429-6002RB and N3429-6003RB) operate to -55°C ~ 105°C, representing a 20°C reduction in maximum operating temperature. Selection between substitutes depends on application thermal requirements and mechanical interface constraints such as contact post length and fastening mechanism compatibility.

Frequently Asked Questions (FAQ)

Q: Can the HARTING 09185266924 be used as a direct replacement for the CWN-551-26-0021?

A: The HARTING 09185266924 qualifies as a substitute based on matching connector type, position count, pitch, row spacing, mounting type, termination, shrouding, and compliance certifications. The fastening type differs (Push-Pull versus Latch Lock/Eject Hooks), and contact post length varies (0.114" versus 0.090"), requiring verification of mechanical fit within the target application.

Q: What is the primary difference between the two 3M substitute parts?

A: Both N3429-6002RB and N3429-6003RB share identical electrical and mechanical interface parameters. The primary difference is contact post length: N3429-6002RB provides 0.112" (2.84mm) post length, while N3429-6003RB provides 0.155" (3.94mm) post length. Selection depends on PCB thickness and solder joint depth requirements.

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

A: The 3M substitute parts (N3429-6002RB and N3429-6003RB) operate to -55°C ~ 105°C, compared to the CWN-551-26-0021 specification of -55°C ~ 125°C. Applications requiring operation above 105°C must use the main part or the HARTING substitute.

Q: Do all substitute parts meet the same RoHS compliance level?

A: The CWN-551-26-0021 and HARTING 09185266924 are ROHS3 Compliant. The 3M N3429-6002RB is RoHS Compliant, while N3429-6003RB is ROHS3 Compliant. All parts meet RoHS requirements; the compliance designation difference does not affect substitution eligibility.

Q: What packaging format is available for substitute parts?

A: All substitute parts are supplied in Bulk packaging, consistent with standard industrial distribution for rectangular connectors in this category.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message