CW00540K00JS73 Equivalent & Substitute Parts

Part Overview

The CW00540K00JS73 is a 40 kOhms ±5% 6.5W through-hole axial wirewound resistor manufactured by Vishay Dale. This component is designed for applications requiring moisture-resistant performance across an extended operating temperature range of -65°C to 350°C. The part is currently active in production with 1129 units available in tape and reel packaging. Identifying equivalent substitute parts is necessary when tape and reel packaging is unavailable or when alternative compliance certifications are required for specific applications.

Substiute Parts

CW00540K00JS73

Vishay DaleIn Stock: 1173CW00540K00JS73 Datasheet

Current PartRFQ

CW00540K00JE73

Vishay DaleIn Stock: 7736CW00540K00JE73 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The CW00540K00JE73 qualifies as a parametric equivalent to the CW00540K00JS73 based on the following criteria:

Matching Electrical Parameters:

• Resistance value: 40 kOhms
• Tolerance: ±5%
• Power rating: 6.5W
• Temperature coefficient: ±30ppm/°C
• Operating temperature range: -65°C ~ 350°C

Matching Mechanical Parameters:

• Composition: Wirewound
• Package case: Axial
• Physical dimensions: 0.312" Dia x 0.875" L (7.92mm x 22.22mm)
• Number of terminations: 2
• Features: Moisture Resistant

Packaging Difference: The primary distinction between these parts is packaging format. The CW00540K00JS73 is supplied in tape and reel (TR) format, while the CW00540K00JE73 is supplied in cut tape (CT) format. Both formats contain identical components with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both parts are active products from Vishay Dale with identical electrical and mechanical specifications. Selection between these parts should be based on the following factors:

CW00540K00JS73 (Tape & Reel): Select this part when tape and reel packaging is required for automated assembly processes. This part is RoHS non-compliant and REACH Affected.

CW00540K00JE73 (Cut Tape): Select this part when cut tape packaging is acceptable or preferred. This part offers ROHS3 compliance and is REACH Unaffected, making it suitable for applications with stricter regulatory requirements.

Both parts maintain identical performance across the full operating temperature range and deliver the same moisture-resistant characteristics required for the application.

Frequently Asked Questions (FAQ)

Q: Are these parts electrically identical? A: Yes. Both parts have identical resistance (40 kOhms), tolerance (±5%), power rating (6.5W), temperature coefficient (±30ppm/°C), and operating temperature range (-65°C ~ 350°C).

Q: What is the difference between tape and reel and cut tape packaging? A: Tape and reel (TR) packaging supplies components on a continuous reel suitable for high-speed automated pick-and-place assembly. Cut tape (CT) packaging supplies components on individual tape segments, typically used for lower-volume applications or manual assembly.

Q: Can I use the cut tape version in place of the tape and reel version? A: Yes, provided your assembly process can accommodate cut tape format. The electrical and mechanical specifications are identical.

Q: What is the significance of the RoHS and REACH compliance differences? A: The CW00540K00JE73 is ROHS3 compliant and REACH Unaffected, making it suitable for applications subject to European Union environmental regulations. The CW00540K00JS73 is RoHS non-compliant and REACH Affected. Select based on your regulatory requirements.

Q: Are the physical dimensions identical? A: Yes. Both parts measure 0.312" diameter by 0.875" length (7.92mm x 22.22mm) and are housed in identical axial packages.

Q: What inventory levels are available? A: CW00540K00JS73 has 1129 units in stock. CW00540K00JE73 has 7680 units in stock.