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FOSAN BZT52C7V5S
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- FOSAN BZT52C7V5S
- Type
- FOSAN
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- FOSAN
- Electronic Component
- BZT52C7V5S
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Zener Diode
- Electronic Component
- 0.025g
- Electronic Component
- 1
- (Zzk)
- 80Ω
- (Zzt)
- 30Ω
- Electronic Component
- BM0264886287
- Diode
- 1
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 7V~7.9V
- Electronic Component
- 65℃~+150℃
- 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.
BZT52C7V5S 产品概述
一、概述
BZT52C7V5S 为独立式稳压二极管（箝位/齐纳二极管），封装为 SOD-323，适用于低功率电压稳压与浪涌保护。该器件由 FOSAN（富信）品牌提供，设计用于在小体积表贴电路中实现稳压、基准和瞬态抑制功能。
二、主要规格
- 稳压值（标称）：7V（实际范围 7.0V ~ 7.9V）
- 耗散功率 Pd：200 mW（在推荐结温/环境条件下）
- 动态阻抗 Zzt：30 Ω（测量条件下）
- 斜率阻抗 Zzk：80 Ω（低电流或开路时特性）
- 工作结温范围：-65 ℃ ~ +150 ℃
- 二极管配置：1 个独立式
- 封装：SOD-323（小型表贴）
三、电气特性说明
稳压值为器件在特定测试电流下的导通电压，实际电压会随电流和温度变化。动态阻抗（Zzt、Zzk）表征在规定电流区间内电压随电流变化的斜率，阻抗越低器件稳压性能越好。耗散功率 Pd 决定最大允许的稳流能力，近似最大稳流 Iz_max = Pd / Vz（例如 0.2W / 7V ≈ 28.6 mA），实际应取更低余量以保证可靠性。
四、热管理与封装影响
SOD-323 为小型塑封，热阻较大，器件在 PCB 上的散热依赖焊盘面积与铜箔导热。200 mW 功耗在常温下可满足低电流稳压，但在高环境温度或持续更高电流时需降额使用。设计时应增大焊盘铜箔，优化过孔或散热铜皮，必要时并联元件或选用更高功率封装替代。
五、典型应用
- 小型电源的局部稳压与参考电压
- 信号线与电路的过压保护、浪涌钳位
- 工业控制、通信和消费电子中的电压抑制与保护电路
六、设计与选型建议
- 按 Iz_max = Pd / Vz 计算稳流上限并留安全裕度，推荐工作电流远低于计算值（例如 ≤ 20 mA）。
- 考虑温度漂移与稳压范围（7.0–7.9 V），用于需精密基准的场合应加温度补偿或选择精密稳压器。
- PCB 设计优化焊盘与铜厚，必要时使用散热 vias 增强散热。
- 若需要更低动态阻抗或更高功率，应选择更大封装或功率更高的系列产品。
七、质量与可靠性
器件工作结温范围宽（-65 ℃ 至 +150 ℃），适应恶劣环境。建议在产品验证阶段进行温度循环、湿热和功率老化测试，以确认在目标应用中的长期稳定性。选型时参考厂商详细数据手册以获取典型曲线与最大额定值。
八、采购与替代
购买时确认封装（SOD-323）、采购批次与原厂标识。BZT52 系列有不同稳压值与功率等级，可以根据电路需求选择相邻电压或更高功率型号作为替代。若对稳压精度或功率有更高要求，考虑更高功率的 SOD-123 或 DO-214 等封装产品。
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