CW02BR3000JS70 Equivalent & Substitute Parts

Part Overview

The CW02BR3000JS70 is a 300 mOhms ±5% 3.75W through-hole axial wirewound resistor manufactured by Vishay Dale. This component is classified as Active product status and is designed for applications requiring low-resistance, high-power dissipation in moisture-resistant environments. The part is supplied in Tape & Reel (TR) packaging format with 936 pieces currently in stock.

Substitute parts are identified when electrical specifications, mechanical dimensions, and functional characteristics remain identical while packaging format or compliance status may differ. This reference identifies direct equivalents suitable for component selection and procurement planning.

Substiute Parts

CW02BR3000JS70

Vishay DaleIn Stock: 958CW02BR3000JS70 Datasheet

Current PartRFQ

CW02BR3000JE70

Vishay DaleIn Stock: 2254CW02BR3000JE70 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CW02BR3000JS70 is determined by strict equivalence across the following critical parameters:

• Resistance value: 300 mOhms
• Tolerance: ±5%
• Power rating: 3.75W
• Composition: Wirewound
• Package case: Axial
• Physical dimensions: 0.188" Dia x 0.562" L (4.78mm x 14.27mm)
• Operating temperature range: -65°C ~ 350°C
• Moisture resistance feature

Packaging format (Tape & Reel versus Cut Tape) does not affect electrical or mechanical compatibility and represents a logistics variation only. Compliance certifications and RoHS status are secondary considerations that do not impact functional substitution.

Parameter Comparison

Engineering Selection Recommendations

The CW02BR3000JE70 is a direct functional equivalent to the CW02BR3000JS70. Both parts are manufactured by Vishay Dale within the CW series and maintain identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is packaging format: the main part is supplied in Tape & Reel (TR) format, while the substitute is supplied in Cut Tape (CT) format. This difference affects procurement and assembly logistics but does not impact circuit performance or component reliability.

Secondary differences include compliance certifications. The substitute part (CW02BR3000JE70) carries ROHS3 compliance and REACH Unaffected status, whereas the main part is RoHS non-compliant and REACH Affected. Selection between these parts should consider regulatory requirements applicable to the end application and geographic market.

Inventory availability favors the substitute part, with 2171 pieces in stock compared to 936 pieces for the main part.

Frequently Asked Questions (FAQ)

Q: Can CW02BR3000JE70 be used as a direct replacement for CW02BR3000JS70 in circuit design?

A: Yes. Both parts are electrically and mechanically identical. Resistance, tolerance, power rating, temperature range, and physical dimensions are equivalent. The parts are interchangeable from a functional standpoint.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape packaging supplies components on tape segments cut to specific lengths, suitable for lower-volume or manual assembly operations. Both formats contain identical components; the difference is logistics and assembly method only.

Q: Does the RoHS compliance difference affect substitution?

A: RoHS compliance is a regulatory and environmental consideration, not an electrical or mechanical one. If your application or market requires RoHS3 compliance, the CW02BR3000JE70 is the appropriate selection. If RoHS compliance is not a requirement, both parts are functionally equivalent.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts operate across the identical temperature range (-65°C ~ 350°C) and deliver the same 3.75W power rating at 300 mOhms resistance with ±5% tolerance.

Q: Which part should I select if both are available?

A: Selection depends on application requirements. If RoHS3 compliance is required, select CW02BR3000JE70. If packaging format preference exists (automated assembly favors Tape & Reel; manual assembly may favor Cut Tape), select accordingly. Both parts are functionally equivalent and will perform identically in circuit operation.