Equivalent & Substitute Parts for C927U331KYYDBAWL20

Part Overview

The C927U331KYYDBAWL20 is a 330 pF ceramic capacitor rated for 400VAC with Y5P temperature coefficient, manufactured by KEMET. This radial, disc-type capacitor is designed for safety applications requiring X1 and Y2 ratings. The part is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain critical electrical and mechanical parameters for direct board-level substitution.

Substiute Parts

C927U331KYYDBAWL20

KEMETIn Stock: 808C927U331KYYDBAWL20 Datasheet

Current PartRFQ

VY2331K29Y5SG63V7

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 872VY2331K29Y5SG63V7 Datasheet

SimilarRFQ

VY2331K29Y5SS63V7

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 19985VY2331K29Y5SS63V7 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the C927U331KYYDBAWL20 is determined by the following critical parameters:

Electrical Compatibility:

• Capacitance value must equal 330 pF
• Tolerance must be ±10%
• Voltage rating must be equal to or greater than 400VAC
• Temperature coefficient must support the operating range of -40°C ~ 125°C
• Safety ratings X1 and Y2 must be maintained

Mechanical Compatibility:

• Mounting type must be Through Hole
• Package configuration must be Radial, Disc
• Lead spacing must be 0.295" (7.50mm)
• Lead style must be Formed Leads - Kinked

The identified substitute parts VY2331K29Y5SG63V7 and VY2331K29Y5SS63V7 meet these criteria with the following allowable variation: voltage rating increased to 440VAC (exceeds minimum requirement) and temperature coefficient changed from Y5P to Y5S (both support the required operating temperature range).

Parameter Comparison

Engineering Selection Recommendations

Both VY2331K29Y5SG63V7 and VY2331K29Y5SS63V7 are suitable direct substitutes for the obsolete C927U331KYYDBAWL20. Selection between these two Vishay alternatives is determined by packaging requirements:

VY2331K29Y5SG63V7 is supplied in standard packaging with 773 pieces currently in stock.

VY2331K29Y5SS63V7 is supplied in bulk packaging with 19,891 pieces currently in stock, providing greater availability for high-volume applications.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component. The increased voltage rating (440VAC versus 400VAC) provides additional safety margin in the application circuit. Both substitute parts are active products with established supply chains, eliminating obsolescence risk associated with the original KEMET part.

Frequently Asked Questions (FAQ)

Q: Can VY2331K29Y5SG63V7 or VY2331K29Y5SS63V7 be used as direct replacements for C927U331KYYDBAWL20 without circuit modification?

A: Yes. Both Vishay parts are direct substitutes. They maintain identical capacitance (330 pF), tolerance (±10%), safety ratings (X1, Y2), operating temperature range (-40°C ~ 125°C), mounting type (Through Hole), package configuration (Radial, Disc), and lead spacing (0.295" / 7.50mm). The increased voltage rating (440VAC) and alternative temperature coefficient (Y5S) are compatible with applications designed for the original 400VAC Y5P specification.

Q: What is the difference between VY2331K29Y5SG63V7 and VY2331K29Y5SS63V7?

A: Both parts are electrically and mechanically identical. The primary difference is packaging: VY2331K29Y5SG63V7 uses standard packaging (773 units in stock), while VY2331K29Y5SS63V7 uses bulk packaging (19,891 units in stock). Selection depends on order quantity and inventory requirements.

Q: Are the substitute parts RoHS and REACH compliant?

A: Yes. Both VY2331K29Y5SG63V7 and VY2331K29Y5SS63V7 are ROHS3 compliant and REACH unaffected, matching the compliance status of the original C927U331KYYDBAWL20.

Q: Why is the voltage rating higher on the substitute parts?

A: The Vishay substitutes are rated for 440VAC compared to the original 400VAC rating. This represents an allowable parameter variation that provides additional safety margin. Higher voltage ratings do not negatively impact circuit performance in applications designed for lower voltages.

Q: Are the temperature coefficients Y5P and Y5S interchangeable?

A: Both Y5P and Y5S temperature coefficients support the required operating range of -40°C ~ 125°C. The substitution is valid for applications within this temperature window.