Application
- Widely used in switching power supplies, overcurrent protection for audio equipment, voltage regulators, power converters, chargers, automotive engine controllers, portable devices, and other applications, as well as in relatively harsh environments.
Construction

NO. | 结构 Construction | 主要材料 Major material |
1 | 陶瓷基板 Ceramic substrate | 三氧化二铝 Al2O3 |
2 | 导电层 Conductive layer(Back) | 银 Ag |
3 | 导电层 Conductive layer(Top) | 银/银钯 Ag/Ag-Pd |
4 | 侧导层 Side conductive layer | 镍铬合金 NiCr |
5 | 镍电极 Ni plating layer | 镍 Ni |
6 | 锡电极 Sn plating layer | 锡 Sn |
7 | 阻体层 Resistive layer | 氧化钌 RuO2 |
8 | 内保护层 Inner protective layer | 玻璃 Glass |
9 | 外保护层 Outer Protective layer | 环氧树脂 Epoxy |
Dimension
尺寸 (Dimension) |
| 单位(unit): mm |
型别(Type) | L | W | H | I1 | I2 |
英制 | 公制 |
0612 | 1632 | 1.60 ±0.20 | 3.20 ±0.20 | 0.55 ±0.10 | 0.30 ±0.20 | 0.50±0.20 |
1020 | 2550 | 2.50 ±0.20 | 5.00±0.20 | 0.55 ±0.10 | 0.40 ±0.20 | 0.50±0.20 |
1218 | 3245 | 3.20 ±0.20 | 4.60±0.20 | 0.55 ±0.10 | 0.40 ±0.20 | 0.50±0.20 |
1225 | 3264 | 3.20±0.20 | 6.50±0.20 | 0.55 ±0.20 | 0.40 ±0.20 | 0.75±0.20 |