CW01040K00JS73 Equivalent & Substitute Parts

Part Overview

The CW01040K00JS73 is a 40 kOhms ±5% 13W through-hole axial wirewound resistor manufactured by Vishay Dale. This component is designed for applications requiring high power dissipation with moisture-resistant construction and operates across an extended temperature range from -65°C to 350°C. The part is currently active in production. Substitute parts are identified when packaging format changes or compliance requirements differ while maintaining identical electrical and mechanical specifications.

Substiute Parts

CW01040K00JS73

Vishay DaleIn Stock: 838CW01040K00JS73 Datasheet

Current PartRFQ

CW01040K00JE73

Vishay DaleIn Stock: 1510CW01040K00JE73 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CW01040K00JS73 has one identified substitute: CW01040K00JE73. Both parts are manufactured by Vishay Dale within the CW series and share identical electrical specifications and mechanical dimensions. The substitution is valid based on the following criteria:

• Resistance value: 40 kOhms (identical)
• Tolerance: ±5% (identical)
• Power rating: 13W (identical)
• Temperature coefficient: ±30ppm/°C (identical)
• Operating temperature range: -65°C ~ 350°C (identical)
• Physical dimensions: 0.375" Dia x 1.781" L (identical)
• Composition and features: Wirewound, moisture resistant (identical)

The primary difference between these parts is packaging format: CW01040K00JS73 is supplied in Tape & Reel (TR) format, while CW01040K00JE73 is supplied in Cut Tape (CT) format.

Parameter Comparison

Engineering Selection Recommendations

Both CW01040K00JS73 and CW01040K00JE73 are functionally equivalent for circuit applications requiring 40 kOhms ±5% 13W axial wirewound resistors. Selection between these parts should be based on:

• Packaging requirements: CW01040K00JS73 in Tape & Reel format is suitable for automated assembly processes. CW01040K00JE73 in Cut Tape format is suitable for manual assembly or lower-volume applications.
• Regulatory compliance: CW01040K00JE73 offers ROHS3 compliance and REACH unaffected status, making it preferable for applications subject to these regulatory frameworks. CW01040K00JS73 is RoHS non-compliant and REACH affected.
• Inventory availability: Both parts are in active production with adequate stock levels.

Frequently Asked Questions (FAQ)

Q: Can CW01040K00JE73 be used as a direct replacement for CW01040K00JS73?

A: Yes. Both parts have identical electrical specifications (40 kOhms ±5%, 13W, ±30ppm/°C temperature coefficient, -65°C to 350°C operating range) and mechanical dimensions (0.375" Dia x 1.781" L). The difference is packaging format: Tape & Reel versus Cut Tape. Electrical and thermal performance are equivalent.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on a reel, optimized for high-speed automated pick-and-place assembly. Cut Tape (CT) packaging supplies components on cut segments of carrier tape, suitable for manual assembly or lower-volume production runs.

Q: Are there compliance differences between these parts?

A: Yes. CW01040K00JE73 is ROHS3 compliant and REACH unaffected. CW01040K00JS73 is RoHS non-compliant and REACH affected. Applications subject to RoHS or REACH regulations should specify CW01040K00JE73.

Q: Do these parts have identical thermal performance?

A: Yes. Both parts have the same temperature coefficient (±30ppm/°C) and operating temperature range (-65°C to 350°C). Thermal characteristics are identical.

Q: Can these parts be used interchangeably in PCB assembly?

A: Electrically and mechanically, yes. However, assembly process compatibility depends on packaging format. Automated assembly lines configured for Tape & Reel should use CW01040K00JS73. Manual assembly or systems configured for Cut Tape should use CW01040K00JE73.