0805YC394MAT2A Equivalent & Substitute Parts

Part Overview

The 0805YC394MAT2A is a 0.39 µF ±20% 16V ceramic capacitor manufactured by KYOCERA AVX in 0805 (2012 Metric) surface mount package. This multilayer ceramic capacitor (MLCC) with X7R temperature coefficient is designed for general purpose applications across an operating temperature range of -55°C to 125°C. The part is currently active and ROHS3 compliant. Substitute parts are necessary when the original part is unavailable, when tighter tolerance specifications are required, or when higher voltage ratings are needed for circuit margin improvements.

Substiute Parts

0805YC394MAT2A

KYOCERA AVXIn Stock: 9420805YC394MAT2A Datasheet

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0805YC394JAT2A

KYOCERA AVXIn Stock: 109370805YC394JAT2A Datasheet

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C0805C394J3RAC7800

KEMETIn Stock: 1988C0805C394J3RAC7800 Datasheet

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C0805C394K3RAC7800

KEMETIn Stock: 18686C0805C394K3RAC7800 Datasheet

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C0805C394K4RAC7800

KEMETIn Stock: 9214C0805C394K4RAC7800 Datasheet

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CC0805KKX7R7BB394

YAGEOIn Stock: 25086CC0805KKX7R7BB394 Datasheet

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GRM21BR71E394KA01L

Murata ElectronicsIn Stock: 7725GRM21BR71E394KA01L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0805YC394MAT2A is determined by the following criteria:

Mandatory Parameters (Must Match):

• Capacitance: 0.39 µF
• Package / Case: 0805 (2012 Metric)
• Mounting Type: Surface Mount, MLCC
• Temperature Coefficient: X7R
• Operating Temperature Range: -55°C to 125°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

• Tolerance: May be tighter (±5% or ±10%) than the original ±20%
• Voltage Rating: May be equal (16V) or higher (25V) than the original 16V
• Manufacturer: Different manufacturers acceptable if all mandatory parameters match

All substitute parts listed meet these criteria and are electrically and mechanically compatible with the original part.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Voltage Rating):

• 0805YC394JAT2A (KYOCERA AVX): Same manufacturer, same voltage rating, tighter ±5% tolerance. Active product status.
• C0805C394K4RAC7800 (KEMET): Same voltage rating (16V), ±10% tolerance. Active product status.
• CC0805KKX7R7BB394 (YAGEO): Same voltage rating (16V), ±10% tolerance. Active product status.

For Improved Voltage Margin:

• C0805C394J3RAC7800 (KEMET): Higher voltage rating (25V), tighter ±5% tolerance. Active product status.
• C0805C394K3RAC7800 (KEMET): Higher voltage rating (25V), ±10% tolerance. Active product status.
• GRM21BR71E394KA01L (Murata Electronics): Higher voltage rating (25V), ±10% tolerance. Product status is "Not For New Designs."

All substitute parts maintain ROHS3 compliance and MSL 1 rating. The GRM21BR71E394KA01L should be avoided for new designs due to its obsolescence status.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher voltage rating? A: Yes. A capacitor rated for 25V can replace one rated for 16V in the same circuit. Higher voltage ratings provide additional safety margin and do not negatively affect circuit performance when the capacitance and tolerance specifications remain compatible.

Q: What is the difference between ±20%, ±10%, and ±5% tolerance? A: Tolerance specifies the allowable deviation from the nominal 0.39 µF capacitance value. ±20% allows 0.312 µF to 0.468 µF; ±10% allows 0.351 µF to 0.429 µF; ±5% allows 0.3705 µF to 0.4095 µF. Tighter tolerances are suitable for applications requiring more precise capacitance values.

Q: Are all substitute parts physically identical? A: All substitute parts use the 0805 (2012 Metric) package and are mechanically compatible. Physical dimensions (length, width, thickness) are equivalent within manufacturing tolerances across all manufacturers listed.

Q: Why is GRM21BR71E394KA01L marked "Not For New Designs"? A: This designation indicates the part is in obsolescence phase. While functionally equivalent and currently in stock, it should not be selected for new product designs. Use active alternatives instead.

Q: Can I mix different manufacturers in the same circuit? A: Yes. All substitute parts meet identical electrical specifications, package requirements, and compliance standards. Multiple manufacturers can be used interchangeably within the same design.