30pF 50V Mini Ceramic Capacitor (300)
Precision High-Frequency Capacitor for Oscillator, RF, and Timing Applications
The 30pF ceramic capacitor is a standard EIA value ideal for crystal oscillator circuits, RF decoupling, highfrequency filtering, and precision timing applications. This "mini" capacitor is available in both throughhole and surface-mount packages to suit various PCB designs.
Capacitance: 30pF (marked as "30" or "300" on the component)
Voltage Rating: 50V DC
Common applications: Crystal oscillators, RF decoupling, high-frequency bypass, and EMI suppression
Do not exceed the rated 50V derating is recommended for reliable longterm operation
Class II dielectrics (X7R, X5R, Y5V) can lose capacitance under DC bias
Available Package Options
The 30pF 50V capacitor is available in multiple form factors to suit different applications:
| Package Type | Dielectric | Tolerance | Temperature Range | Common Use |
|---|
| Through-Hole Radial | X7R | ±10% | -55°C to +125°C | Hobbyist, breadboard, prototyping |
| Through-Hole Radial | Y5V | +80/-20% | -30°C to +85°C | Generalpurpose, costsensitive |
| SMD 0603 | X7R | ±10% | -55°C to +125°C | Compact, high-density PCB designs |
| SMD 0805 | X7R | ±10% | -55°C to +125°C | General-purpose SMD applications |
| SMD 1206 | NP0/C0G | ±5% | -55°C to +150°C | Highstability, AECQ200 automotive |
| SMD 1206 | X7R | ±10% | -55°C to +125°C | Higher power handling |
= Key Features =
Standard EIA Value - 30pF is a commonly used and readily available capacitance value
NonPolarized Easy assembly with no polarity concerns
Wide Temperature Range X7R grade offers 55°C to +125°C operation
Multiple Package Options Available in throughhole radial and SMD (0603, 0805, 1206) formats
= Applications =
- Crystal oscillator loading circuits (commonly used with 8-16MHz crystals)
- RF decoupling for sensitive RF and communication circuits
- High-frequency bypass on power supply lines
- Noise suppression on data and signal lines
- EMI/RFI filtering at circuit inputs and outputs
- Timing and delay circuits
- Automotive electronics (AEC-Q200 variants available)
- High-speed digital circuits
Standard EIA Value - 30pF is a commonly available capacitance value
AECQ200 Available Automotive-grade variants available for harsh environments
√ Ready to use - no polarity for easy assembly
√ Stable performance over wide temperature range (X7R grade)
√ Excellent high-frequency characteristics for clean power delivery
Package Includes
Varies by seller:
- Bulk packs (throughhole radial) 10 to 500+ pieces
- Tape and reel (SMD) - 100 to 10,000+ pieces
- Cut tape / loose pieces for prototyping
The "30" or "300" marking indicates 30pF - first two digits are significant, third is multiplier (30 x 10⁰ = 30pF)
For crystal oscillator circuits, 30pF is commonly used for crystal loading - check your crystal datasheet for exact value
For RF decoupling, place capacitor as close as possible to the IC power pin
For highreliability applications, select NP0/C0G or AECQ200 rated variants
For precision timing circuits, use NP0/C0G dielectric for ±30ppm/°C temperature stability
For automotive applications, select AEC-Q200 qualified variants with higher temperature ratings
Avoid using highK dielectrics (X7R, Y5V) in precision timing circuits - capacitance varies with DC bias and temperature
Avoid exceeding rated voltage for 50V rated parts, recommended operating voltage is typically ≤40V
Avoid placing decoupling capacitors too far from ICs increased trace inductance reduces high-frequency effectiveness