Overview
The 2A104J Mylar Capacitor is a non-polarized polyester film capacitor designed for reliability. With a capacitance of 0.1uF and a massive 400V voltage rating, it is significantly more robust than common ceramic disc capacitors. It is widely used in noise suppression, blocking, coupling, and decoupling applications where voltage spikes are a concern. Its inductive “wrapped” construction ensures it can survive harsh electrical environments without breaking down.
Key Features
High Voltage Tolerance: Rated for up to 400V, making it safe for AC line filtering and high-voltage DC circuits.
Low Dissipation Factor: High efficiency with very little energy lost as heat.
Non-Polarized: Can be connected in either direction, simplifying your PCB or breadboard layout.
Self-Healing Property: Small internal shorts caused by voltage transients often “heal” themselves, extending the life of the component.
Color Coded: Usually comes in a distinct reddish-brown or green coating for easy identification in your component drawer.
Technical Specifications ⚙️
| Feature | Specification |
| Model Code | 2A104J |
| Capacitance | 0.1 $\mu$F (100nF) |
| Voltage Rating | 400V DC |
| Tolerance | $\pm 5\%$ (J) |
| Dielectric Material | Polyester Film (Mylar) |
| Lead Pitch | Approx. 5mm – 10mm |
| Operating Temp | -40°C to +85°C |
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