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LMSZ5258BT1G是乐山无线电(LRC)推出的表面贴装独立式稳压二极管,主打36V标称稳压值,采用SOD-123小型封装,专为低功耗、高密度PCB设计场景提供稳定的电压基准或过压保护功能。该器件平衡了小体积与基础性能,适合消费电子、小型电源模块、工业控制等领域的常规稳压需求,是低成本稳压方案的典型选择。
标称稳压值为36V,误差范围34.2V~37.8V(对应±5%精度),满足多数常规电路对稳压精度的要求。实际应用中需通过限流电阻控制负载电流,确保器件工作在反向击穿的稳压区(避免电流过大导致热损坏)。
在反向偏置电压27V(未达到稳压值)时,反向漏电流仅100nA,远低于同类器件的典型漏电流(通常为μA级),有效降低静态功耗,适合电池供电、低功耗传感器等场景。
额定耗散功率为500mW,结合稳压值可计算最大允许工作电流:
[ I_{\text{max}} \approx \frac{P_d}{V_z} = \frac{500,\text{mW}}{36,\text{V}} \approx 13.9,\text{mA} ]
需注意电路负载电流不得超过此值,避免器件过热击穿。
动态阻抗越低,稳压电压随负载电流变化越小,该器件的阻抗特性可满足一般稳压场景的稳定性要求(如小功率LED驱动、信号偏置调节)。
该器件采用SOD-123表面贴装封装,尺寸紧凑(典型值:长2.9mm×宽1.6mm×高1.1mm),适配自动贴装生产线,可大幅节省PCB布局空间,适合便携式设备(如蓝牙模块、微型电源)、高密度工业模块的设计需求。
封装材料符合RoHS环保标准,无铅无卤,满足现代电子产品的环保法规要求。
乐山无线电(LRC)是国内半导体行业老牌厂商,拥有30余年分立器件研发制造经验,LMSZ5258BT1G经过严格可靠性测试:
产品一致性与稳定性表现优异,可同时覆盖消费级与工业级应用场景。
LMSZ5258BT1G以紧凑的SOD-123封装、36V标称稳压值、低漏电流及合理的功耗设计,成为常规稳压与过压保护场景的高性价比选择。其平衡了体积、成本与性能,适合对空间、成本敏感的电子设计项目,是LRC稳压管系列中的经典型号。
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