Capacitor
100nF Ceramic Capacitor
100nF X7R ceramic — the standard local decoupling cap for every IC's power pin.
Generic (every passive-components manufacturer)
Overview
A small, stable, non-polarized ceramic capacitor at the value that goes next to almost every IC's supply pin on almost every PCB ever made. The reason: an IC's internal logic switches state in nanoseconds, which means its instantaneous current demand spikes far faster than the power rail's own regulator (or even the copper trace leading to it) can respond — parasitic trace inductance alone is enough to make a distant supply look 'slow' at those timescales. A 100nF cap placed right next to the pin acts as a tiny local charge reservoir with almost no inductance in its path, supplying that fast current spike locally while the trace and regulator catch up over the following microseconds. Skip it and you get supply-rail ringing, logic glitches, or a chip that resets itself under load — intermittent, hard-to-diagnose failures that vanish the moment someone probes the board with a scope (loading down the very ringing that caused the problem). X7R dielectric is the usual pick for this job: stable enough across temperature and DC bias for a bypass role, though not as flat as C0G/NP0 (which costs more and is reserved for precision analog, not bulk decoupling). Not a substitute for a bulk/reservoir capacitor on a whole power rail — see electrolytic-470uf-25v for that job; the two are normally used together, one per IC plus one bulk cap per board or per section.
Wiring tip: one per IC, right next to the VCC/GND pins — not a substitute for a bulk capacitor
Pins & wiring
100nF Ceramic Capacitor
Linear package
Physical pin order shown left to right.
All pins
Hover · click to selectSelected pin
1
- Direction
- Passive
No polarity — ceramic capacitors work either way round.
Full pin table
| Pin | Name | Role | Direction | Note |
|---|---|---|---|---|
| 1 | Other | Passive | No polarity — ceramic capacitors work either way round. | |
| 2 | Other | Passive | — |
Wiring examples
Local decoupling on an IC's supply pin
Placed as physically close as possible to the IC's VCC/GND pins, with the shortest practical trace — the whole point is minimizing the inductance between the cap and the pin it's protecting.
| 100nF Ceramic Capacitor pin | Connects to | Note |
|---|---|---|
| 1 | MPU-6050 · vcc | Illustrative target — this pattern applies next to nearly any IC's supply pin, not just this one. |
| 2 | MPU-6050 · gnd | — |
- Placement matters as much as value here — a 100nF cap wired in with long traces, far from the pin it's meant to protect, does much less good than one tucked directly underneath or beside the IC.
- This does not replace a bulk/reservoir capacitor on the rail feeding multiple ICs — see electrolytic-470uf-25v for that role. Boards typically need both.
Specifications
Electrical
- Capacitance
- 100 nFsrc
- Voltage Rating
- Varies by vendor
- Tolerance
- Varies by vendor
Performance
- ESR
- —
- Ripple Current
- N/A
Physical
- Package
- Varies by vendor
- Dielectric
- X7R
- Mounting
- Varies by vendor
Footprint
No independently verified physical footprint is on file for this part yet.
Alternatives
No alternatives are on file yet for this part.
Documents
No documents or CAD assets are on file for this part yet.
Frequently asked questions
What voltage does the 100nF Ceramic Capacitor run at?
Banana Board does not have a verified operating voltage on file for the 100nF Ceramic Capacitor yet — check the datasheet in Documents before wiring it up.
How many pins does the 100nF Ceramic Capacitor have?
The 100nF Ceramic Capacitor has 2 pins. See the full pinout table in Pins & wiring for each pin's role.
Can I simulate the 100nF Ceramic Capacitor before ordering hardware?
Not yet — the 100nF Ceramic Capacitor does not have a live simulation model in Banana Board today, so validate the wiring here and test on real hardware.
Related references
Build it, do not just look it up
Describe your circuit in one sentence and Banana Board wires it to these exact pins, validates it, and lays out a fab-ready PCB.