WMSIC Electronic Components

Prisemi PSM712

ModelPSM712
PackageSOT-23
BrandPRISEMI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Prisemi PSM712
Type
PRISEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PRISEMI
Electronic Component
PSM712
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.034g
Electronic Component
1
Cj- Capacitor
30pF
Electronic Component
BM0227760363
Voltage
22V;28V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
7.5V;13.3V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

PSM712 产品概述

一、主要特性

PSM712 是芯导(Prisemi)推出的双向瞬态抑制二极管(ESD TVS),采用 SOT-23 小型封装,专为接口、电源和信号线上突发过压、静电放电和快速瞬态干扰保护设计。器件具有低漏电、高脉冲吸收能力以及符合工业级抗干扰标准的性能,适合各种消费电子、通信和工业控制场景。

二、关键参数

  • 钳位电压(典型):22V / 28V(对应不同标称型号)
  • 击穿电压 Vbr(典型):7.5V / 13.3V
  • 反向截止电压 Vrwm:7V / 12V(提供两种标称耐压选项)
  • 峰值脉冲功率 Ppp:400W(8/20μs)
  • 峰值脉冲电流 Ipp:15A(8/20μs)
  • 结电容 Cj(典型):30pF
  • 反向电流 Ir(典型):1μA
  • 极性:双向(适合交流或双向信号线保护)
  • 防护等级/标准:IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)
  • 类型:ESD TVS
  • 封装:SOT-23
  • 品牌:Prisemi(芯导)

三、典型应用

  • USB、RS-232/RS-485、CAN、Ethernet 等数据接口的ESD/EFT保护
  • 便携设备和消费类电子的信号端口防护
  • 工业控制与测控系统中的接口防护,满足现场电磁干扰和静电冲击要求
  • 电源输入旁路保护与局部浪涌抑制

四、封装与布板建议

SOT-23 封装利于表面贴装自动化生产,建议在 PCB 上靠近被保护的接口或芯片布置 TVS,并设计合理的散热铜箔和尽量短的引线以降低寄生电感。对于高速信号线,需关注结电容(约30pF)对信号完整性的影响,必要时评估是否满足总线速率要求。

五、使用注意事项

  • 选择 Vrwm 与系统工作电压匹配的型号,避免误触发或器件长期承受接近击穿区。
  • 虽有 400W 的瞬态吸收能力,但不应作为长期浪涌吸收器件;对重复大幅浪涌场景需考虑级联保护或更高能量等级器件。
  • 双向结构适合交流和双向信号,但对单向电源线路可考虑单向 TVS 以获得更低钳位电压。

PSM712 在小体积下提供可靠的瞬态抑制能力,是对接口电路进行经济有效保护的优选器件。

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