Ceramic capacitor
X7R multilayer (MLCC) · 100 nF 50 V · non-polarised, very low ESR
Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Typical part: Ceramic capacitor (MLCC / disc)
Pins
- Lead 1
- Lead 2
Ratings and limits
| Value | 100 nF (code 104) |
|---|---|
| Voltage | 50 V |
| Dielectric | X7R: loses capacitance with DC bias and temperature |
How to use it
100 nF ceramics sit right at every IC’s supply pins to supply fast current spikes (decoupling). Read the code as two digits and a number of zeros in pF: 104 = 10 × 10⁴ pF = 100 nF.
Lessons and builds that use it
- Crystal oscillator (Pierce)
- Cascode amplifier
- Peak and envelope detector
- LDO vs buck: choosing a 3.3 V rail
- Cell protection: DW01 + 8205A
- ADC front end: reference and anti-alias filter
- Hardware debounce and power-on reset
- Reading colour codes and markings
- 65 W USB-C PD charger from scratch: mains flyback (UC3844, 800 V MOSFET, PQ2625 transformer), TL431 + PC817 feedback, PD controller (build)
- 8. Voltage regulator: a 12 V supply and a steady 5 V (build)
- 9. Comparator: a clean decision at dusk (build)
- 10. Relay: switching a real lamp (build)
- 11. PIR sensor: only when someone is there (build)
- 12. 555 timer: stay on after they pass (build)