Equivalent & Substitute Parts for C927U331KYYDBAWL35

Part Overview

The C927U331KYYDBAWL35 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 from active product lines. Substitute parts must maintain the same capacitance value, tolerance, safety ratings, and mounting configuration while accommodating minor variations in voltage rating and temperature coefficient within acceptable operating parameters.

Substiute Parts

C927U331KYYDBAWL35

KEMETIn Stock: 1023C927U331KYYDBAWL35 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 C927U331KYYDBAWL35 is based on the following critical parameters:

Mandatory Matching Criteria:

• Capacitance: 330 pF (exact match required)
• Tolerance: ±10% (exact match required)
• Safety Ratings: X1, Y2 (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package Type: Radial, Disc (exact match required)
• Lead Style: Formed Leads - Kinked (exact match required)
• Operating Temperature Range: -40°C ~ 125°C (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

Allowable Variation Parameters:

• Voltage Rating: 400VAC (substitute parts rated 440VAC are acceptable as they exceed minimum requirement)
• Temperature Coefficient: Y5P (B) to Y5S (both Y5-class coefficients with acceptable tolerance characteristics)
• Physical Dimensions: Minor variations in diameter and height acceptable within industry standards for radial disc capacitors

The identified substitute parts VY2331K29Y5SG63V7 and VY2331K29Y5SS63V7 satisfy all mandatory matching criteria and allowable variations.

Parameter Comparison

Engineering Selection Recommendations

Both VY2331K29Y5SG63V7 and VY2331K29Y5SS63V7 are functionally equivalent substitutes for the obsolete C927U331KYYDBAWL35. Selection between these two Vishay alternatives is determined by packaging and inventory requirements:

VY2331K29Y5SG63V7 is supplied in standard packaging with 773 pieces currently in stock. This part is suitable for applications requiring standard component packaging formats.

VY2331K29Y5SS63V7 is supplied in bulk packaging with significantly higher inventory availability (19,891 pieces in stock). This part is suitable for high-volume production runs or applications requiring bulk component sourcing.

Both substitute parts exceed the original 400VAC rating with a 440VAC specification, providing enhanced voltage margin. The Y5S temperature coefficient of the Vishay parts is within the Y5-class family and maintains the same -40°C to 125°C operating temperature range as the original KEMET part. All three parts maintain identical safety ratings (X1, Y2), lead spacing (0.295" / 7.50mm), and RoHS3 compliance status.

The primary physical difference is the capacitor body diameter: the original KEMET part measures 0.354" (9.00mm) while the Vishay substitutes measure 0.295" (7.50mm). This smaller diameter may provide layout advantages in space-constrained applications while maintaining identical lead spacing for direct PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can VY2331K29Y5SG63V7 and VY2331K29Y5SS63V7 be used interchangeably?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format: VY2331K29Y5SG63V7 uses standard packaging while VY2331K29Y5SS63V7 uses bulk packaging. Selection depends on procurement and inventory requirements, not functional performance.

Q: Why is the voltage rating higher on the substitute parts (440VAC vs. 400VAC)?

A: The 440VAC rating on the Vishay substitutes exceeds the original 400VAC requirement. Higher voltage ratings provide additional safety margin and are acceptable for direct substitution in applications designed for 400VAC operation.

Q: Are the temperature coefficients Y5P and Y5S compatible?

A: Both Y5P and Y5S are within the Y5-class temperature coefficient family. Both maintain the same -40°C to 125°C operating temperature range and are suitable for the same safety applications. The Y5S specification of the Vishay parts is acceptable for applications originally specified with Y5P.

Q: Will the smaller body diameter (7.50mm vs. 9.00mm) affect PCB layout?

A: No. The lead spacing remains identical at 0.295" (7.50mm), ensuring direct PCB footprint compatibility. The smaller body diameter may provide layout advantages in space-constrained designs without requiring PCB modifications.

Q: Are all three parts RoHS3 compliant?

A: Yes. The original KEMET C927U331KYYDBAWL35 and both Vishay substitutes (VY2331K29Y5SG63V7 and VY2331K29Y5SS63V7) are ROHS3 compliant.

Q: What is the difference between standard and bulk packaging?

A: VY2331K29Y5SG63V7 (standard packaging) and VY2331K29Y5SS63V7 (bulk packaging) are electrically and mechanically identical. Bulk packaging is typically used for high-volume orders and offers higher inventory availability. Standard packaging is suitable for lower-volume requirements.