The MC18FD391J-F is a multilayer RF chip capacitor with a 1812 case size, rated for 500 Vdc, and a capacitance of 390 pF with ±5% tolerance. It uses a natural mica dielectric, offering high Q at UHF/VHF frequencies, high RF current handling with dV/dt of 20,000 V/µs, and thermal cracking resistance compatible with FR4 boards. The capacitor operates from -55 °C to +125 °C, is wave solderable, and has dimensions of 4.5 mm by 3.2 mm. Nonmagnetic variants are available for MRI applications.
390pF Mica Capacitor 500V 1812 (4532 Metric)
Multilayer RF Capacitors 500V
CAP MICA 390PF 5% 500V 1812
| Cornell Dubilier | DigiKey | New Yorker Electronics Co., Inc. | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|
| Product Category | Capacitors | Capacitors | Capacitors | Capacitors |
| Product Number | MC18FD391J-F | 338-1127-ND | 2002-MC18FD391J-F | MC18FD391J-F |
| Product Name | Mica | Mica and PTFE Capacitors | Mica Capacitors | Capacitors - Mica and PTFE Capacitors |
| Configuration / Form Factor | Chip Capacitor | Chip Capacitor | ||
| Technology | Multilayer | Multilayer | Single-Layer | |
| Operating Temperature | -55 to 125 C (-67 to 257 F) | -55 to 125 C (-67 to 257 F) | -55 to 125 C (-67 to 257 F) | |
| Electrostatic Capacitors | Mica | Mica | Mica; Mica | |
| Capacitance Range | 3.90E-4 microF | 3.90E-4 microF |
