VJ0805A390KXCMP Equivalent & Substitute Parts

Part Overview

The VJ0805A390KXCMP is a 39 pF ceramic capacitor manufactured by Vishay Vitramon in the VJ series. This surface mount multilayer ceramic capacitor (MLCC) operates at 200V rated voltage with C0G/NP0 temperature coefficient and ±10% tolerance. The component is classified as Active product status with ROHS3 compliance and MSL 1 rating. Substitute parts are identified when equivalent capacitance and package specifications are maintained while allowing variations in voltage rating and tolerance within acceptable electrical parameters.

Substiute Parts

VJ0805A390KXCMP

Vishay VitramonIn Stock: 935VJ0805A390KXCMP Datasheet

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VJ0805A390JXEAC

Vishay VitramonIn Stock: 6871VJ0805A390JXEAC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VJ0805A390KXCMP is determined by the following criteria:

Critical Parameters (Must Match):

• Capacitance: 39 pF
• Temperature Coefficient: C0G, NP0
• Package / Case: 0805 (2012 Metric)
• Mounting Type: Surface Mount, MLCC
• Operating Temperature Range: -55°C ~ 150°C

Allowable Variations:

• Voltage Rating: May be equal to or greater than 200V
• Tolerance: May be tighter (lower) than ±10%
• RoHS and MSL compliance maintained

The VJ0805A390JXEAC qualifies as a substitute because it maintains identical capacitance, temperature coefficient, package, and operating temperature range while providing upgraded voltage rating (500V) and improved tolerance (±5%).

Parameter Comparison

Engineering Selection Recommendations

The VJ0805A390JXEAC serves as a direct substitute for the VJ0805A390KXCMP in applications where the circuit design permits. Both components maintain Active product status and full ROHS3 compliance. The substitute part provides enhanced voltage rating (500V versus 200V) and tighter tolerance (±5% versus ±10%), making it suitable for circuits operating at or below 200V. The identical package footprint (0805/2012 Metric) and physical dimensions ensure PCB compatibility without layout modifications. Both components share MSL 1 rating, eliminating moisture sensitivity concerns during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can VJ0805A390JXEAC replace VJ0805A390KXCMP in all applications?

A: Yes, provided the circuit operates at or below 200V. The substitute part's 500V rating and ±5% tolerance are compatible with any design using the original 200V, ±10% specification.

Q: Are there physical compatibility concerns?

A: No. Both parts use identical 0805 (2012 Metric) packaging with matching dimensions (2.00mm L x 1.25mm W x 1.45mm max thickness), ensuring direct PCB footprint compatibility.

Q: Does the tighter tolerance of the substitute part affect circuit performance?

A: The ±5% tolerance of VJ0805A390JXEAC is tighter than the ±10% tolerance of VJ0805A390KXCMP, providing improved capacitance accuracy. This does not negatively impact circuits designed for the original part.

Q: Are both parts RoHS compliant?

A: Yes. Both VJ0805A390KXCMP and VJ0805A390JXEAC are ROHS3 compliant with MSL 1 rating.

Q: What is the temperature coefficient significance?

A: Both parts use C0G/NP0 temperature coefficient with identical -55°C to 150°C operating range, ensuring stable capacitance across the full temperature spectrum.