CWN-360-40-0021 Equivalent & Substitute Parts

Part Overview

The CWN-360-40-0021 is a rectangular connector header manufactured by CW Industries, designed for through-hole mounting applications. This 40-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 971 units in stock. Substitute parts are identified to address inventory availability, lead time constraints, or specific application requirements while maintaining electrical and mechanical compatibility within defined parameter tolerances.

Key Parameters

Parameter	Value
Manufacturer Part Number	CWN-360-40-0021
Manufacturer	CW Industries
Connector Type	Header
Contact Type	Male Pin
Number of Positions	40
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
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Current Rating	1A

Substitute Part Grouping Explanation

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

Position Count: 40 positions (exact match required)
Pitch Specification: 0.100" (2.54mm) mating pitch (exact match required)
Row Configuration: 2 rows (exact match required)
Connector Type: Header with male pins (exact match required)
Mounting Method: Through-hole solder termination (exact match required)
Shrouding: Shrouded 4-wall design (exact match required)
Operating Temperature Range: -55°C to 125°C minimum (equal or wider range acceptable)
Flammability Rating: UL94 V-0 (exact match required)
RoHS Compliance: ROHS3 or equivalent (equal or higher compliance acceptable)

Parts meeting all critical parameters are classified as direct substitutes. Parts with deviations in position count, pitch, row configuration, or shrouding type are not substitutes and are excluded from this reference.

Parameter Comparison

Parameter	CWN-360-40-0021 (CW Industries)	09185407924 (HARTING)	71918-040LF (Amphenol ICC)	N3432-6002RB (3M)
Number of Positions	40	40	40	40
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)
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
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	Not specified	-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	RoHS Compliant
Contact Length - Mating	0.240" (6.10mm)	0.240" (6.10mm)	0.228" (5.80mm)	0.240" (6.10mm)
Contact Length - Post	0.155" (3.94mm)	0.114" (2.90mm)	0.114" (2.90mm)	0.112" (2.84mm)
Insulation Height	0.681" (17.30mm)	0.681" (17.30mm)	0.685" (17.40mm)	0.680" (17.27mm)
Contact Finish - Mating	Gold	Gold	Gold, GXT™	Gold
Contact Material	Phosphor Bronze	Copper Alloy	Phosphor Bronze	Copper Alloy
Insulation Material	Thermoplastic	Polybutylene Terephthalate (PBT), Glass Filled	Thermoplastic, Glass Filled	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled
Current Rating	1A	Not specified	Not specified	1.75A
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Substitutes (40-Position, 2.54mm Pitch)

The following parts are qualified as direct substitutes for the CWN-360-40-0021:

09185407924 (HARTING SEK Series): Meets all critical parameters with identical position count, pitch, row spacing, shrouding, and flammability rating. Operating temperature range matches the main part. ROHS3 compliance confirmed. Contact post length is shorter (0.114" vs. 0.155"), which may affect board-level clearance in space-constrained applications. Inventory availability is 835 units.

71918-040LF (Amphenol ICC Quickie™ Series): Meets all critical parameters with identical position count, pitch, row spacing, shrouding, and flammability rating. Contact mating length is slightly reduced (0.228" vs. 0.240"), and post length is shorter (0.114" vs. 0.155"). Operating temperature range is not specified in available data. RoHS compliance is confirmed. Inventory availability is 1395 units, the highest among all substitutes.

N3432-6002RB (3M 3000 Series): Meets all critical parameters with identical position count, pitch, row spacing, shrouding, and flammability rating. Operating temperature range is -55°C to 105°C, which is narrower than the main part (-55°C to 125°C) by 20°C at the upper limit. Contact post length is shorter (0.112" vs. 0.155"). Current rating is higher (1.75A vs. 1A). RoHS compliance is confirmed. Inventory availability is 791 units.

Non-Substitute Part

09185506324 (HARTING SEK Series): This part has 50 positions and does not qualify as a substitute due to position count mismatch. It is excluded from direct substitution consideration.

Frequently Asked Questions (FAQ)

Q: Can 09185506324 be used as a substitute for CWN-360-40-0021?

A: No. The 09185506324 has 50 positions, while the CWN-360-40-0021 has 40 positions. Position count is a critical parameter that must match exactly for substitution eligibility. This part is not compatible.

Q: What is the primary difference between the substitute parts and the main part?

A: All qualified substitutes maintain identical mating pitch (0.100" / 2.54mm), position count (40), row configuration (2 rows), shrouding type (4-wall), and flammability rating (UL94 V-0). The primary differences are in contact post length, insulation material composition, and in one case, operating temperature range. These differences do not affect electrical compatibility but may impact mechanical fit in specific board designs.

Q: Does the shorter contact post length on substitute parts affect compatibility?

A: Contact post length affects board-level clearance and solder joint formation. The main part has a post length of 0.155" (3.94mm), while substitutes range from 0.112" to 0.114". Applications with tight clearance requirements or specific solder profile specifications should account for this variation during design validation.

Q: Is N3432-6002RB suitable for applications requiring operation above 105°C?

A: No. The N3432-6002RB has a maximum operating temperature of 105°C, while the main part and other substitutes support 125°C. For applications requiring the full -55°C to 125°C range, use CWN-360-40-0021, 09185407924, or 71918-040LF.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts carry RoHS compliance certification. The main part and 09185407924 are ROHS3 compliant, while 71918-040LF and N3432-6002RB are RoHS compliant. Both compliance levels meet current regulatory requirements.

Q: What packaging options are available for these parts?

A: CWN-360-40-0021 is supplied in Bulk packaging. 09185407924 is supplied in Bulk. 09185506324 is supplied in Tray. 71918-040LF is supplied in Tube. N3432-6002RB is supplied in Bulk. Packaging selection may affect procurement lead times and handling requirements.

Q: Can these parts be used interchangeably on the same PCB?

A: Mechanical and electrical interchangeability is supported for all qualified substitutes due to matching pitch, position count, and shrouding. However, variations in contact post length and insulation material may require design review for applications with specific clearance or thermal requirements. Board layout validation is recommended before production implementation.

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