Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Prisemi PTVSHC3N4V5B
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Prisemi PTVSHC3N4V5B
- Type
- PRISEMI
- Minimum package
- 3000 未知
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- PRISEMI
- Electronic Component
- PTVSHC3N4V5B
- Electronic Component
- 1
- Package
- DFN-3(2x2)
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.032g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Cj- Capacitor
- 700pF
- Electronic Component
- BM0227760364
- Voltage
- 14V
- Electronic Component
- IEC 61000-4-4；IEC 61000-4-2
- Current(Ir)
- 1uA
- Voltage(VBR)
- 4.6V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PTVSHC3N4V5B 产品概述
一、概述
PTVSHC3N4V5B 是 Prismemi（芯导）推出的一款单路瞬态电压抑制二极管（TVS），封装为 DFN-3（2.0×2.0mm，俗称 DFN2020）。器件针对瞬态浪涌与静电放电保护设计，能在工业与消费类电源、信号线和接口电路中提供高效的过压保护。
二、主要电气参数
- 反向截止电压 Vrwm：4.5 V（典型）
- 击穿电压：4.6 V
- 钳位电压（Vclamp）：14 V（典型，规定脉冲条件下）
- 峰值脉冲电流 Ipp：240 A @ 8/20 µs
- 峰值脉冲功率 Ppp：2.8 kW @ 8/20 µs
- 反向电流 Ir：1 µA（典型）
- 结电容 Cj：约 700 pF（影响高速信号）
- 通道数：单路（单芯）
- 防护等级/认证：符合 IEC 61000-4-4（EFT）与 IEC 61000-4-2（ESD）
三、封装与热管理
器件采用 DFN-3（2×2 mm）小封装，适合高密度贴片设计。建议在 PCB 上预留对应的焊盘和底部热铜箔，通过短而宽的接地回流路径和良好散热垫帮助热量扩散，以提升重复冲击下的可靠性。
四、典型应用场景
- USB、串口、CAN 等数据接口的静电与浪涌保护
- 小功率电源总线保护（低压供电轨）
- 工业控制器、通讯设备及便携式电子终端需要抗干扰与防护的场合
五、设计与布局建议
- 将 TVS 靠近被保护端口放置，输入线到器件的走线尽量短且阻抗连续。
- 对高速信号注意 Cj=700 pF 带来的带宽影响，若是高速差分信号需权衡是否采用此器件或选择低容型产品。
- 接地应采用局部大面积地铜与多通孔连接到底层地，提高瞬态能量分流能力。
六、选型与注意事项
- 确认工作电压 Vrwm 高于电路最大静态电压但低于对下游器件有害电压；本器件适合 4.5 V 额定工况。
- 对 ESD 与浪涌能力有明确要求的设计，可参考 IEC 测试等级并在实测中验证钳位性能。
- 储存与焊接遵循厂家回流温度曲线与防潮等级（请参阅芯导原厂数据手册）。
PTVSHC3N4V5B 以其高峰值冲击能力、合规的抗静电与抗脉冲标准以及小尺寸封装，适合在空间敏感且需可靠过压保护的电子系统中使用。欲获得更详细的动态钳位曲线、封装图与推荐焊盘，请参考厂商数据手册或联系供应商。
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