开关稳压器是效率高达97%的高功率密度紧凑型稳压器。R78系列是替代78xx系列线性稳压器的3引脚THT产品，也是我们最受欢迎的产品之一。由于可以直接替代TO-220稳压器，因此在不需重新设计电路或安装散热器的情况下，传统电源板的效率可以从大约60%提升到90%以上。有线版本是专为提供本地稳压电源和短路保护设计的，无需任何外部组件或电路板。
软引出线
0.5–1A
| 系列 | 电流(A) | 输入电压（V） | 主输出电压（V） | 安装类型 | 封装类型 | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
|
R-78HB-0.5/W
| 0.5 | 9 - 72, 17 - 72 | 12, 5 | 引线 | SIP3 | |||
| 2 |
|
R-78W-0.5
| 0.5 | 6.5 - 32, 11 - 32, 15 - 32 | 12, 3.3, 5, 9 | 引线 | SIP3 |
Frequently Asked Questions
Wired switching regulators are engineered to provide efficient local voltage regulation in environments where a traditional PCB is impractical. These compact wired power regulators are frequently integrated into fans, cooling units, battery-operated equipment, and LED support circuits to ensure reliable power conversion and streamlined installation. Their fully enclosed, ready-to-wire housing simplifies deployment within space-constrained industrial systems.
Wired switching regulators eliminate the necessity for a dedicated PCB, facilitating rapid integration into standalone or retrofit applications. This PCB-free form factor reduces design complexity and accelerates time-to-market by providing a self-contained, industrial-grade regulated power source that minimizes the need for external components.
The majority of these wired buck regulators are non-isolated, optimized for high-efficiency step-down voltage conversion. This architecture makes them an ideal solution for local point-of-load regulation where galvanic isolation is not a requirement, effectively reducing both the overall system footprint and cost while maintaining robust output regulation.
Yes, these regulated wired converters serve as a direct, drop-in linear regulator replacement for traditional 78xx series components. By achieving significantly higher efficiency and minimizing energy dissipation, they remove the requirement for bulky heatsinks and enhance thermal management in both legacy designs and modern industrial controls.