CW00168R00JS70 Equivalent & Substitute Parts

Part Overview

The CW00168R00JS70 is a 68 Ohms ±5% through-hole resistor manufactured by Vishay Dale in the CW series. This axial wirewound resistor 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 909 units in stock. Finding equivalent or substitute parts may be necessary due to inventory constraints, packaging requirements, or application-specific performance needs.

Substiute Parts

CW00168R00JS70

Vishay DaleIn Stock: 948CW00168R00JS70 Datasheet

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RS01A68R00FS70

Vishay DaleIn Stock: 1743RS01A68R00FS70 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CW00168R00JS70 is determined by the following critical parameters:

• Resistance value must remain 68 Ohms
• Axial package configuration must be maintained for PCB compatibility
• Wirewound composition ensures appropriate thermal and electrical characteristics
• Moisture-resistant feature must be preserved for environmental durability
• Physical dimensions (0.094" Dia x 0.406" L) must match for mechanical fit

The RS01A68R00FS70 qualifies as a substitute based on matching these core parameters. This part maintains the same resistance value, axial package, wirewound composition, moisture-resistant feature, and identical physical dimensions. Differences in tolerance, power rating, and temperature coefficient represent performance enhancements rather than compatibility barriers.

Parameter Comparison

Engineering Selection Recommendations

Both the CW00168R00JS70 and RS01A68R00FS70 are active production parts from Vishay Dale with identical RoHS non-compliant status. The RS01A68R00FS70 offers tighter tolerance (±1% versus ±5%), improved temperature coefficient stability (±20ppm/°C versus ±30ppm/°C), and specified 1W power rating. The CW00168R00JS70 supports a higher maximum operating temperature of 350°C compared to 250°C for the substitute. Selection between these parts depends on application requirements for temperature range, tolerance precision, and power dissipation. Both parts maintain identical physical dimensions and axial package configuration, ensuring mechanical and electrical compatibility in standard through-hole PCB applications.

Frequently Asked Questions (FAQ)

Q: Can RS01A68R00FS70 be used as a direct replacement for CW00168R00JS70?

A: Yes, the RS01A68R00FS70 is mechanically and electrically compatible as a substitute. Both parts share identical resistance value, axial package configuration, physical dimensions, and moisture-resistant wirewound construction. The substitute offers improved tolerance and temperature coefficient performance.

Q: What are the key differences between these two parts?

A: The primary differences are tolerance (±1% versus ±5%), temperature coefficient (±20ppm/°C versus ±30ppm/°C), specified power rating (1W versus unspecified), maximum operating temperature (250°C versus 350°C), and packaging format (Cut Tape versus Tape & Reel).

Q: Does the packaging format difference affect compatibility?

A: Packaging format (Cut Tape versus Tape & Reel) affects handling and assembly processes but does not impact electrical or mechanical compatibility. Both formats deliver the same component in different supply configurations.

Q: Are there temperature range limitations when substituting?

A: The RS01A68R00FS70 operates to a maximum of 250°C, which is lower than the CW00168R00JS70's 350°C rating. Applications requiring operation above 250°C must use the original CW00168R00JS70 part.

Q: What does the tolerance difference mean for circuit performance?

A: The RS01A68R00FS70's ±1% tolerance provides tighter resistance value control compared to the CW00168R00JS70's ±5% tolerance. This results in more predictable circuit behavior and reduced variation across production batches.