CW02B250R0JS70 Equivalent & Substitute Parts

Part Overview

The CW02B250R0JS70 is a 250 Ohm, 3.75W wirewound axial resistor manufactured by Vishay Dale. This through-hole component features moisture-resistant construction and operates across a wide temperature range from -65°C to 350°C. The part is currently active in production with 1050 units in stock. Substitute parts are necessary when tape and reel packaging is unavailable or when RoHS3 compliance is required for specific applications.

Substiute Parts

CW02B250R0JS70

Vishay DaleIn Stock: 1113CW02B250R0JS70 Datasheet

Current PartRFQ

CW02B250R0JE70

Vishay DaleIn Stock: 3034CW02B250R0JE70 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CW02B250R0JE70 qualifies as a direct substitute for the CW02B250R0JS70 based on identical electrical and mechanical specifications. Both parts share the same resistance value (250 Ohms), tolerance (±5%), power rating (3.75W), temperature coefficient (±30ppm/°C), operating temperature range (-65°C to 350°C), physical dimensions (0.188" Dia x 0.562" L), and wirewound moisture-resistant construction. The primary difference is packaging format: the main part uses Tape & Reel (TR) packaging, while the substitute uses Cut Tape (CT) packaging. Both are from the same CW series and maintain identical electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the CW02B250R0JS70 and CW02B250R0JE70 are electrically and mechanically identical and can be used interchangeably in circuit applications. Selection between these parts should be based on packaging requirements and regulatory compliance needs. The CW02B250R0JE70 is recommended when RoHS3 compliance is mandatory or when cut tape packaging is preferred for manual assembly operations. The CW02B250R0JS70 remains suitable for applications where tape and reel automation is required and RoHS3 compliance is not a constraint. Both parts maintain active production status and are available in adequate inventory quantities.

Frequently Asked Questions (FAQ)

Q: Can CW02B250R0JE70 be used as a direct replacement for CW02B250R0JS70?

A: Yes. Both parts are electrically and mechanically identical with matching resistance, tolerance, power rating, temperature coefficient, and physical dimensions. The only differences are packaging format (Cut Tape vs. Tape & Reel) and RoHS compliance status.

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

A: Tape & Reel (TR) packaging is designed for automated pick-and-place assembly equipment. Cut Tape (CT) packaging provides individual component segments cut from the reel, suitable for manual assembly or smaller production runs.

Q: Does the RoHS3 compliance difference affect electrical performance?

A: No. RoHS3 compliance relates to material composition and environmental regulations, not electrical characteristics. Both parts deliver identical electrical performance.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts measure 0.188" diameter by 0.562" length (4.78mm x 14.27mm) and will fit identically in PCB layouts and through-hole applications.

Q: Which part should I select for high-volume automated assembly?

A: The CW02B250R0JS70 with Tape & Reel packaging is optimized for automated pick-and-place equipment used in high-volume production.

Q: Which part should I select for manual assembly or prototyping?

A: The CW02B250R0JE70 with Cut Tape packaging is more practical for manual assembly, prototyping, and low-volume applications.