Timing capacitors are precision electronic components used in pulse generation circuits to control signal timing, frequency, and pulse width with high accuracy.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| ESR | 10mΩ to 100mΩ | |
| Lifetime | >10,000 hours at rated conditions | |
| Tolerance | ±1% to ±10% | |
| Voltage Rating | 16V to 100V DC | |
| Capacitance Range | 1pF to 10μF | |
| Dielectric Absorption | <0.1% to 0.5% | |
| Operating Temperature | -55°C to +125°C | |
| Temperature Coefficient | NP0/C0G: 0±30ppm/°C, X7R: ±15% |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
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Timing capacitors are specifically designed for precise time-constant applications with superior stability, lower dielectric absorption, tighter tolerances (±1% to ±5%), and better temperature coefficients compared to general-purpose capacitors. They maintain consistent capacitance values over time and temperature variations, which is critical for accurate timing in pulse generation circuits.
Temperature changes cause capacitance drift in most capacitors, but timing capacitors use NP0/C0G ceramics or polypropylene films with near-zero temperature coefficients (0±30ppm/°C for NP0). This minimizes timing errors to less than 0.3% across industrial temperature ranges (-40°C to +85°C), ensuring stable pulse widths and frequencies in varying environmental conditions.
Yes, timing capacitors with low equivalent series resistance (ESR) and inductance (ESL) are suitable for high-frequency pulse generation up to several MHz. Film capacitors (polypropylene/polystyrene) and NP0 ceramics provide the best high-frequency characteristics with minimal losses, making them ideal for fast rise-time pulses and high-speed timing circuits.
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