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LRC LUDZS22BT1G
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LRC LUDZS22BT1G
- Type
- LRC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LRC
- Electronic Component
- LUDZS22BT1G
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Zener Diode
- Electronic Component
- 0.028g
- Electronic Component
- 1
- (Zzt)
- 100Ω
- Electronic Component
- BM0264909296
- Diode
- 1
- Current(Ir)
- 100nA
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 21.54V~22.47V
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LUDZS22BT1G — 22V 0.2W 稳压二极管产品概述
一、产品简介
LUDZS22BT1G 是乐山无线电（LRC）出品的一款独立式稳压（二极管）器件，标称稳压值22V，最大耗散功率200mW，封装为SOD-323 贴片型，适用于空间受限的表面贴装电路。器件针对小功率电压基准、过压钳位与低成本基准源等应用场景设计。
二、主要电气参数（关键值）
- 标称稳压值：22V
- 稳压值范围：21.54V ~ 22.47V（制造公差约±2.1%）
- 反向电流 Ir：100nA（反向泄漏小，有利于低功耗与高阻输入）
- 耗散功率 Pd：200mW（器件在良好散热条件下的最大耗散）
- 阻抗 Zzt：100Ω（小信号动态阻抗，影响负载变化时的稳压精度）
- 二极管数目：1个，独立式
三、设计与使用要点
- 最大稳压电流估算：Iz_max ≈ Pd / Vz = 200mW / 22V ≈ 9.09mA。实际设计时应留有裕量，不建议长期接近此值。
- 稳压电路示例（串联电阻+稳压二极管）：R = (Vin − Vz) / Iz。举例：若 Vin=30V，选 Iz=5mA（兼顾稳压与功耗），则 R = 8V / 5mA ≈ 1.6kΩ；此时稳压管耗散约 22V × 5mA = 110mW，低于200mW。
- 动态阻抗影响：Zzt=100Ω 表明在小电流范围内电压随电流变化明显，若需更精确的基准，应提高工作电流或采用低阻抗方案（如精密参考源）。
四、封装与散热
SOD-323 为小型贴片封装，便于高密度布板。由于Pd仅200mW，散热能力有限，推荐在 PCB 上为稳压管周围布置适量铜箔以改善散热并遵循厂商的焊接曲线与回流工艺。环境温度升高时须相应降额使用以避免过热。
五、典型应用场景
- 小功率电压基准与偏置（模拟前端、传感器偏置）
- 过压保护与信号线钳位（保护后级电路免受瞬态过压）
- 低成本电源稳压（要求功耗和精度在器件能力范围内）
六、选型与注意事项
- 若系统需要更低Zzt或更高功耗，请考虑更大功率或精密参考器件。
- 设计时确认实际工作电流与稳压管耗散不超过额定值，并评估环境温度对散热的影响。
- 贴装与焊接请按LRC 推荐的回流曲线与湿敏等级要求操作，以保证可靠性。
LUDZS22BT1G 适合在低功耗、小体积场合作为经济型稳压与保护元件使用，设计时需注意功率限制与动态阻抗带来的稳压精度影响。
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