C1206C829J1GACTU vs C1206C821K1GALTU
| Part Number |
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| Category | Ceramic Capacitors | Ceramic Capacitors |
| Manufacturer | KEMET | KEMET |
| Description | CAP CER 8.2PF 100V NP0 1206 | CAP CER 820PF 100V NP0 1206 |
| Package | 1206 (3216 Metric) | 1206 (3216 Metric) |
| Series | C | L |
| Features | Low ESL | - |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| Mounting Type | Surface Mount, MLCC | Surface Mount, MLCC |
| Package / Case | 1206 (3216 Metric) | 1206 (3216 Metric) |
| Applications | General Purpose | General Purpose |
| Tolerance | ±5% | ±10% |
| Temperature Coefficient | C0G, NP0 | C0G, NP0 |
| Size / Dimension | 0.126" L x 0.063" W (3.20mm x 1.60mm) | 0.126" L x 0.063" W (3.20mm x 1.60mm) |
| Voltage - Rated | 100V | 100V |
| Thickness (Max) | 0.035" (0.88mm) | 0.035" (0.88mm) |
| Capacitance | 8.2pF | 820pF |
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1. Does the voltage of ceramic capacitors matter?
Voltage ratings are critical to ensure safe operation. Using a capacitor below the rated voltage may cause premature failure; using a capacitor above the rated voltage may cause immediate damage.
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2. Why are mica capacitors so expensive?
Mica capacitors are expensive because of their excellent electrical properties (such as very low dissipation factor and stable temperature coefficient) and their high production costs.
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3. Why do ceramic capacitors make noise?
Some types of ceramic capacitors (particularly Class 2 ceramic capacitors) produce micro-vibrations when the voltage changes due to their material properties, which in turn cause faint mechanical noise.
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4. What is the difference between Class 1 and Class 2 ceramic capacitors?
Class 1: has high accuracy and stable temperature coefficient, suitable for precision circuits.
Class 2: has higher capacitance value, but larger temperature coefficient and tolerance, suitable for general applications.
