5KQ331JACAI Equivalent & Substitute Parts

Part Overview

The 5KQ331JACAI is a 330 pF ±5% 500V ceramic capacitor with SL temperature coefficient in radial disc configuration, manufactured by KYOCERA AVX. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part operates across a temperature range of -30°C to 85°C and is suitable for general-purpose applications requiring stable capacitance performance at elevated voltages.

Substiute Parts

5KQ331JACAI

KYOCERA AVXIn Stock: 10355KQ331JACAI Datasheet

Current PartRFQ

D331J39SL0L6TJ5R

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 834D331J39SL0L6TJ5R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5KQ331JACAI is determined by strict equivalence across the following critical parameters:

• Capacitance value: 330 pF (exact match required)
• Tolerance: ±5% (exact match required)
• Voltage rating: 500V (exact match required)
• Temperature coefficient: SL (exact match required)
• Mounting type: Through Hole (exact match required)
• Package configuration: Radial, Disc (exact match required)
• Lead spacing: 0.197" (5.00mm) (exact match required)

The substitute part D331J39SL0L6TJ5R meets all these criteria. Physical dimensions may vary within the radial disc package category; however, the critical electrical parameters and lead spacing remain consistent with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The D331J39SL0L6TJ5R is a direct functional equivalent for the 5KQ331JACAI. Both components share identical electrical specifications across capacitance, tolerance, voltage rating, and temperature coefficient. The substitute part is currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete original.

The D331J39SL0L6TJ5R offers an extended operating temperature range (-55°C ~ 125°C versus -30°C ~ 85°C), providing additional thermal margin for applications operating at temperature extremes. The substitute part carries ROHS3 compliance certification, meeting current environmental and regulatory requirements.

Lead style differs between the two parts: the original features straight leads while the substitute employs formed leads with kinked configuration. This difference requires verification of PCB layout compatibility, particularly regarding lead hole spacing and component seating height on the circuit board.

Frequently Asked Questions (FAQ)

Q: Can D331J39SL0L6TJ5R be used as a direct replacement for 5KQ331JACAI?

A: Yes, the D331J39SL0L6TJ5R meets all critical electrical specifications. However, the kinked lead style requires confirmation that the PCB layout accommodates the different lead geometry compared to the straight leads of the original part.

Q: What is the significance of the extended temperature range in the substitute part?

A: The D331J39SL0L6TJ5R operates from -55°C to 125°C, compared to the original -30°C to 85°C range. This provides additional thermal operating margin and may enable use in more demanding environmental conditions without performance degradation.

Q: Are there any compliance differences between the two parts?

A: The D331J39SL0L6TJ5R carries ROHS3 compliance certification. Both parts share identical REACH status (REACH Unaffected) and ECCN classification (EAR99).

Q: How do the physical dimensions compare?

A: The original part measures 0.236" diameter (6.00mm) with 0.118" seated height (3.00mm). The substitute part measures 0.394" diameter (10.00mm). Lead spacing remains constant at 0.197" (5.00mm) for both components. PCB layout verification is necessary to confirm accommodation of the larger body diameter.

Q: What is the current availability status of each part?

A: The 5KQ331JACAI is obsolete with 1013 pieces in stock. The D331J39SL0L6TJ5R is in active production with 741 pieces currently available, ensuring sustained procurement capability.