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Hottech BZX84C3V6
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Hottech BZX84C3V6
- Type
- HOTTECH
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HOTTECH
- Electronic Component
- BZX84C3V6
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Zener Diode
- Electronic Component
- 0.03g
- Electronic Component
- 1
- (Zzk)
- 600Ω
- (Zzt)
- 90Ω
- Electronic Component
- BM0264463947
- Diode
- 1
- Current(Ir)
- 5uA@1V
- Power Dissipation(Pd)
- 350mW
- Electronic Component
- 3.4V~3.8V
- Electronic Component
- 65℃~+150℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BZX84C3V6 稳压二极管（3.6V，350mW，SOT-23）产品概述
一、产品概述
BZX84C3V6 是一款面向低功率稳压与浪涌保护的独立型稳压二极管，标称稳压值为 3.6V，封装为 SOT-23，品牌为 Hottech（合科泰）。器件适用于空间受限的表贴板上，常作为基准电压源、脉冲钳位及过压保护元件。
二、主要电气参数
- 稳压值（标称）：3.6V；允许范围 3.4V ~ 3.8V。
- 最大耗散功率 Pd：350 mW（在规定的环境与散热条件下）。理论最大稳压电流 Iz_max ≈ Pd / Vz ≈ 97 mA，但受 SOT-23 封装散热限制，实际推荐工作电流远低于此值。
- 反向漏电流 Ir：5 μA @ 1V（典型条件）。
- 阻抗：Zzt = 90 Ω（测试工作点下的动态阻抗），Zzk = 600 Ω（整流膝部阻抗）。
- 工作结温范围：-65 ℃ ~ +150 ℃。
三、性能特点与应用场景
该型号具有体积小、工艺成熟、对瞬态过压响应快等特点。适用场合包括：
- 低功耗电源轨微调与参考；
- ADC/DAC 前端电平限制与保护；
- 通信端口或传感器接口的浪涌钳位；
- 分立式偏置和泄放电路。
四、阻抗与稳压行为说明
Zzt（较低值）表明在额定测试电流下，器件输出对电流变化的稳压能力较好；而较高的 Zzk 意味着在进入击穿区的膝部需要一定的电流才能达到稳定的稳压状态。设计时应保证稳压二极管的工作电流位于其线性稳压区，而非仅处于膝部或漏电区，以获得良好精度与响应。
五、热管理与实际电流建议
虽有 350 mW 的额定耗散，SOT-23 的实际散热受 PCB 面积、铜箔厚度及环境影响显著。设计建议：
- 在常温下，若 PCB 无特殊散热措施，应将平均稳流控制在远低于理论值的范围（例如 ≤ 20–30 mA）；必要时通过散热铜箔或热毯改善散热以允许更高电流。
- 注意瞬态功率（浪涌）不超过封装短时承受能力。
六、封装与 PCB 布局建议
- SOT-23 正确识别阳极/阴极极性并保证焊盘与过孔散热连通，可通过加大阴极焊盘面积或接地铜皮提高散热。
- 实现低噪声与稳定输出时，靠近参考节点布局并减小串联电阻与感性元件。
七、选型与替代
BZX84C3V6 与市场上同类 3.6V 低功耗稳压二极管（如 BZX84/BZT52 系列）在功能上可互换，但应比较稳压范围、动态阻抗、漏电与封装散热性能。选型时关注实际工作电流、工作温度与 PCB 散热条件。
结语：BZX84C3V6（Hottech）是一款适合用于中低功率稳压与保护场景的 SOT-23 稳压二极管。合理的电流限制与良好的 PCB 散热设计，是发挥其稳压精度与可靠性的关键。
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