820 pF 200V X7R 0805 Ceramic Capacitor (08052C821MAT2A)

Part Overview

The 08052C821MAT2A is a 820 pF ceramic capacitor manufactured by KYOCERA AVX, rated for 200V with X7R temperature coefficient in 0805 (2012 Metric) surface mount package. This part is currently active in production with 1173 units in stock. The X7R dielectric provides stable capacitance across the operating temperature range of -55°C to 125°C with ±20% tolerance. Equivalent and substitute parts are necessary when the original part becomes unavailable, when design requirements demand tighter tolerance specifications, higher voltage ratings, or alternative temperature coefficients for enhanced performance in specific applications.

Substiute Parts

08052C821MAT2A

KYOCERA AVXIn Stock: 120308052C821MAT2A Datasheet

Current PartRFQ

08052C821KAT2A

KYOCERA AVXIn Stock: 1098108052C821KAT2A Datasheet

UpgradeRFQ

C0805C821JAGAC7800

KEMETIn Stock: 4363C0805C821JAGAC7800 Datasheet

UpgradeRFQ

C0805C821JCGAC7800

KEMETIn Stock: 3313C0805C821JCGAC7800 Datasheet

UpgradeRFQ

C2012C0G2E821J060AA

TDK CorporationIn Stock: 4895C2012C0G2E821J060AA Datasheet

MFR RecommendedRFQ

C2012C0G2E821K060AA

TDK CorporationIn Stock: 2564C2012C0G2E821K060AA Datasheet

MFR RecommendedRFQ

C2012C0G2W821J060AA

TDK CorporationIn Stock: 4762C2012C0G2W821J060AA Datasheet

MFR RecommendedRFQ

C2012C0G2W821K060AA

TDK CorporationIn Stock: 1305C2012C0G2W821K060AA Datasheet

MFR RecommendedRFQ

C2012NP02W821J060AA

TDK CorporationIn Stock: 3110C2012NP02W821J060AA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 08052C821MAT2A is determined by the following critical parameters:

• Capacitance Value: Must remain 820 pF
• Package / Case: Must be 0805 (2012 Metric) for mechanical and electrical compatibility
• Mounting Type: Must be Surface Mount, MLCC
• Voltage Rating: Must be equal to or greater than 200V
• Temperature Coefficient: X7R or C0G/NP0 are acceptable; C0G/NP0 provides superior stability
• Operating Temperature Range: Must support -55°C to 125°C minimum
• Tolerance: ±20%, ±10%, or ±5% are acceptable; tighter tolerances provide improved performance
• RoHS Compliance: ROHS3 Compliant status required
• Moisture Sensitivity: MSL 1 (Unlimited) required

Substitute parts are grouped into three categories: direct tolerance upgrades from the same manufacturer, upgraded performance alternatives with improved specifications, and manufacturer-recommended alternatives with enhanced dielectric materials and voltage ratings.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Manufacturer, Improved Tolerance)

The 08052C821KAT2A from KYOCERA AVX is a direct upgrade offering ±10% tolerance while maintaining the same 200V rating, X7R temperature coefficient, and 0805 package. This part is actively produced with higher inventory availability (10876 units) and is suitable for applications requiring tighter capacitance control without performance trade-offs.

Performance Upgrade (Enhanced Voltage Rating and Tolerance)

The C0805C821JAGAC7800 (KEMET) and C2012C0G2E821J060AA (TDK) provide ±5% tolerance with 250V rating, representing a significant improvement over the original 200V specification. Both use C0G/NP0 dielectric material, which delivers superior temperature stability compared to X7R. These parts are suitable for designs requiring enhanced reliability margins and tighter capacitance specifications.

High-Voltage Alternative (Maximum Performance)

The C0805C821JCGAC7800 (KEMET) offers 500V rating with ±5% tolerance and C0G/NP0 dielectric, providing the highest voltage margin and most stable performance. This part is appropriate for high-reliability applications or designs with potential voltage transients.

Extended Temperature Range Option

The C2012NP02W821J060AA (TDK) extends the upper operating temperature to 150°C while maintaining 450V rating and ±5% tolerance. This part is specified for applications requiring enhanced thermal performance beyond standard -55°C to 125°C range.

Product Status Consideration

The TDK parts (C2012 series) carry "Last Time Buy" status, indicating discontinued production. The KYOCERA AVX 08052C821KAT2A and KEMET C0805C821JAGAC7800 and C0805C821JCGAC7800 maintain active production status and are recommended for new designs requiring long-term availability.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 08052C821MAT2A with the 08052C821KAT2A?

A: Yes. Both parts are manufactured by KYOCERA AVX in the same 0805 package with identical 200V rating and X7R temperature coefficient. The 08052C821KAT2A offers improved ±10% tolerance compared to ±20%, making it a direct upgrade with no electrical or mechanical compatibility issues.

Q: What is the difference between X7R and C0G/NP0 temperature coefficients?

A: X7R provides ±15% capacitance variation across the -55°C to 125°C temperature range. C0G/NP0 provides superior stability with ±0.3% variation over the same range. C0G/NP0 is preferred for precision applications where capacitance stability is critical.

Q: Can I use a 250V-rated part in place of the 200V original?

A: Yes. A higher voltage rating provides additional safety margin and is electrically compatible. The circuit will function identically. Parts such as C0805C821JAGAC7800 (250V) and C2012C0G2E821J060AA (250V) are direct substitutes with improved specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing and assembly processes.

Q: What is the significance of "Last Time Buy" status on TDK parts?

A: "Last Time Buy" indicates the manufacturer has discontinued production. Existing inventory is available for purchase, but no future production is planned. For new designs requiring long-term component availability, KYOCERA AVX or KEMET alternatives with "Active" status are recommended.

Q: Does package size differ between 0805 and 2012 Metric designations?

A: No. 0805 and 2012 Metric are equivalent designations for the same physical package: 0.079" L × 0.049" W (2.01mm × 1.25mm). All listed parts are mechanically and electrically interchangeable within this package specification.

Q: Which substitute offers the best overall performance?

A: The C0805C821JCGAC7800 (KEMET) provides the highest voltage rating (500V), tightest tolerance (±5%), and C0G/NP0 dielectric stability with active production status. For applications requiring maximum reliability and performance margin, this part is the optimal choice.