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TECH PUBLIC PSD05C
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TECH PUBLIC PSD05C
- Type
- TECH PUBLIC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TECH PUBLIC
- Electronic Component
- PSD05C
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Electronic Component
- Type
- ESD
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.053g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Cj- Capacitor
- 35pF
- Electronic Component
- BM0225773402
- Operating Temperature
- 55℃~+125℃
- Voltage
- 9V
- Electronic Component
- IEC 61000-4-4；IEC 61000-4-2
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PSD05C 产品概述 — TECH PUBLIC (台舟电子)
一、产品简介
PSD05C 是一款单路、双向的瞬态电压抑制二极管（TVS/ESD），用于静电放电与浪涌保护。器件采用 SOD-323 小型封装，适合空间受限的消费电子和工业接口保护，型号由 TECH PUBLIC（台舟电子）出品，针对快速瞬态（ESD/EFT）与峰值脉冲能量提供可靠防护。
二、主要电气参数
- 钳位电压（Vc）：9 V
- 击穿电压（Vbr）：7 V
- 反向截止电压 Vrwm：5 V
- 峰值脉冲功率 Ppp：300 W（8/20 μs）
- 峰值脉冲电流 Ipp：20 A（8/20 μs）
- 结电容 Cj：35 pF
- 反向电流 Ir：100 nA
- 通道：单路，极性：双向
- 工作温度：-55 ℃ ~ +125 ℃
- 防护等级：符合 IEC 61000-4-2（ESD）与 IEC 61000-4-4（EFT）
三、核心特性与优势
- 小封装、高能量密度：SOD-323 外形，便于贴片安装，适合空间受限的前端保护。
- 双向保护：可对双向信号线或数据/电源线提供对称抑制，无需考虑极性方向。
- 快速响应：专为静电和开关瞬变设计，能在纳秒级响应，保护敏感器件免受瞬变损害。
- 适用5V系统：Vrwm=5V 与 Vbr≈7V 使其特别适合 5V 或更低工作电压的接口和信号线。
四、典型应用
- USB、UART、I2C、SPI 等低压数字信号保护（USB2.0 等）
- SIM 卡、传感器接口与音频信号线前端保护
- 通信接口（CAN/RS-485 差分线前端配合使用）
- 工业控制模块、仪表和便携设备的输入/输出保护
注：结电容 35 pF 对高频高速接口（如 USB3.0、HDMI）可能影响信号完整性，应谨慎评估或选用低容值器件。
五、封装与 PCB 布局建议
- 将 PSD05C 尽量靠近外部连接器或受保护器件放置，最短走线以降低感抗和环路面积。
- 对地连接应使用低阻抗回流路径，建议近端大面积地平面。
- SOD-323 焊盘设计遵循厂家推荐焊盘，采用良好的回流焊工艺，注意焊接温度对器件可靠性的影响。
六、选型与使用注意事项
- 根据系统最大允许工作电压和钳位要求确认 Vrwm 与 Vc 是否满足保护需求。
- 若保护高速差分信号，应优先关注结电容对信号带宽的影响；需要更低 Cj 时考虑其它型号。
- PSD05C 适合抵御工业级 ESD/EFT，但非雷击主浪涌保护器件；面对高能冲击应结合一级浪涌保护方案。
- 工作环境温度范围为 -55 ℃ 至 +125 ℃，在高温环境下注意热设计与功率散热。
总结：PSD05C 在 SOD-323 小封装中提供了对 5V 及以下系统的高效 ESD/浪涌保护，具有快速响应、300W 峰值能量能力与双向保护特性，适合嵌入式、通信与消费电子的前端防护应用。
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