WMSIC Electronic Components

TECH PUBLIC P3500SC

ModelP3500SC
PackageSMB(DO-214AA)
BrandTECH PUBLIC
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
TECH PUBLIC P3500SC
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
P3500SC
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Thyristor Surge Suppressor (TSS)
Electronic Component
0.273g
Current
5uA
Electronic Component
1
Electronic Component
BM0229959152
Operating Temperature
40℃~+150℃
Latching Current(Ih)
120mA
Switch Voltage(Vs)
400V
Capacitor(Co)
60pF
Voltage(Vt)
4V
Current(It)
2.2A

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

P3500SC 产品概述

一、产品简介

P3500SC 是 TECH PUBLIC(台舟电子)推出的一款功率晶闸管(可控硅),采用 SMB(DO-214AA)表面贴装封装。该器件针对中小功率交流与脉冲开关应用设计,具有较低的断态电容、较小的漏电流和较高的脉冲承受能力,适合用于交流控制、电源保护和固态继电器等场景。

二、主要性能特点

  • 额定开关电压(Vs):400 V,满足多数中低压功率开关需求。
  • 断态峰值电压(Vdrm):320 V。选择与系统电压配合时需注意留有裕量。
  • 通态/触发电压(Vt):4 V。该数值表明触发或在规定条件下的导通压降特性(以厂方定义为准),便于门极驱动设计。
  • 通态电流(It):2.2 A(持续)。适用于中小功率连续导通场合。
  • 峰值脉冲电流(Ipp):100 A,能够承受短时浪涌或启动电流。
  • 漏电流:5 μA,断态漏电小,有利于低待机或高阻抗场景。
  • 断态电容(Co):60 pF,断态电容较低,有助于减小高频干扰与快速dv/dt造成的误触发风险。
  • 保持电流(Ih):120 mA,器件保持导通所需电流值,设计低电流负载或检测回路时需注意。
  • 工作温度范围:-40 ℃ ~ +150 ℃,适应较宽温度环境,便于高温场合应用。

三、关键电气参数(便于快速查阅)

  • 开关电压 (Vs):400 V
  • 断态峰值电压 (Vdrm):320 V
  • 通态电压/触发 (Vt):4 V
  • 通态电流 (It):2.2 A(连续)
  • 峰值脉冲电流 (Ipp):100 A
  • 断态电容 (Co):60 pF
  • 漏电流:5 μA
  • 保持电流 (Ih):120 mA
  • 工作温度:-40 ℃ ~ +150 ℃
  • 封装:SMB (DO-214AA)

注:上述参数基于提供的数据列出。具体测试条件(如电流、温度、波形)会影响典型值与极限值,请以正式规格书为准进行最终设计。

四、典型应用场景

  • 交流电机软启动与小功率调速;
  • 灯光/加热器的相位调光与功率控制;
  • 固态继电器(SSR)与电子开关模块;
  • 电源保护与浪涌吸收(作为过压/过流保护单元);
  • 工业控制、仪器设备中中低功率开关元件。

特别提示:断态峰值电压 Vdrm = 320 V,在直接用于 230 VAC(峰值约 325 V)系统时,裕量有限,应慎重选择或采用额外保护电路(如 RC 吸收、浪涌抑制器)以提高可靠性;若系统存在较大浪涌或长期过压风险,建议选用额定电压更高的器件或采取电压分担措施。

五、封装与热管理

SMB(DO-214AA)为常见的 SMD 功率封装,便于自动贴装与回流焊接。由于器件在导通时可能产生较大的功耗(若 Vt 表示导通压降,P ≈ Vt × It),例如在 2.2 A 连续导通且导通压降为数伏时,器件热耗不可忽视。设计时应注意:

  • PCB 铜箔散热面积和热通道的设计;
  • 合理选取焊盘、加大散热涂层或采用散热片/散热底板;
  • 在高温条件下对额定电流进行适当降额处理。

六、使用与可靠性建议

  • 触发驱动:门极驱动幅度应不小于器件触发电压与触发电流需求(本数据列出 Vt = 4 V),并考虑保证在器件工作环境温度下仍能可靠触发。
  • dv/dt 抑制:尽管断态电容较小,但在有高速电压变化的场合仍可能产生误触发,建议在必要时并联 RC 或采用慢上升边驱动与栅极限流措施。
  • 热循环与长期应力:器件工作在高温侧(接近 150 ℃)时,需关注热循环和长期漂移对漏电流、触发特性及保持电流的影响,建议在可靠性设计中留有裕量。
  • 电压裕量:务必留有足够的工作电压裕量,避免长期在接近 Vdrm 的环境下工作。
  • 浪涌管理:对于可能出现的短时大电流冲击(如灯泡启动、感性负载反冲),应结合外部限流或软启动电路,尽量减小频繁的高幅值浪涌对器件寿命的影响。

如果需要,我可以根据您具体的应用电压等级、负载类型和驱动条件,给出更详细的热设计建议、驱动电路原理图与 PCB 布局要点。

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