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DOWO BZT52C51S
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO BZT52C51S
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- BZT52C51S
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Zener Diode
- Electronic Component
- 0.028g
- Electronic Component
- 1
- (Zzk)
- 750Ω
- (Zzt)
- 100Ω
- Electronic Component
- BM0264342814
- Diode
- 1
- Current(Ir)
- 100nA
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 48V~54V
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BZT52C51S 产品概述
一、产品简介
BZT52C51S 是 DOWO（东沃）品牌的一款独立式齐纳二极管，采用小型表面贴装封装 SOD-323。该型号标称稳压值为 51V，实际稳压范围为 48V~54V，适合在高电压偏置、参考和稳压场合作为低功耗电压基准或过压保护元件使用。单芯片结构，便于在空间受限的 PCB 布局中布置。
二、电气参数与主要特性
- 稳压值（标称）：51V（范围 48V~54V）
- 最大功耗 Pd：200 mW
- 反向漏电流 Ir：100 nA（典型参数，随温度变化）
- 稳压阻抗 Zzt：100 Ω（在规定测试电流下的稳压区阻抗）
- 击穿区阻抗 Zzk：750 Ω（低电流区的动态阻抗）
- 特性：齐纳击穿阻抗低，稳压精度相对稳定；器件具备高稳定性和高可靠性，适合长期工作环境。
三、典型应用场景
- 小电流电压基准与参考源（精确度要求中等的测量电路）
- 流过电流较低的稳压电路与偏置网络
- 电子设备的过压保护与浪涌钳位（尤其在信号线或偏置线上）
- 通信、仪表、工业控制及消费类电子中空间受限的高压稳压解决方案
四、使用与设计注意事项
- 热功耗计算：在稳压工作时，二极管自身的耗散功率约等于 Vz × Iz。对于本器件，最大 Iz_max ≈ Pd / Vz = 0.2 W / 51 V ≈ 3.9 mA。实际设计中建议留有裕量，常用工作电流取 0.1~1 mA 区间以降低噪声与温漂。
- 限流与选型：当用作简单稳压器时，应通过串联限流电阻 R = (Vin - Vz) / Iz 选择合适阻值，并保证在最坏情况下（无负载或最大 Vin）器件耗散不超过 200 mW。
- 温度与漏电：Ir 随温度上升会增加，关键场合需注意高温下的漏电与稳压漂移。
- 封装热管理：SOD-323 封装热阻较大，散热能力有限，贴装时尽量靠近散热良好的铜箔区域并遵循工艺回流曲线，避免长时间高温应力。
五、封装与可靠性
SOD-323 小型贴片封装便于高密度安装，适合自动贴装与回流焊工艺。DOWO 出品，产品宣称具有高稳定性与高可靠性，适合电子产品长期可靠运行。订购时请确认规格书中的温度系数、封装尺寸与生产批次，以便在设计与量产中保证一致性。
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