WMSIC Electronic Components

Prisemi PDTC143ZM

ModelPDTC143ZM
PackageSOT-723
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 PDTC143ZM
Type
PRISEMI
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PRISEMI
Electronic Component
PDTC143ZM
Electronic Component
1
Package
SOT-723
Electronic Component
1 NPN
Electronic Component
Digital Transistor
Electronic Component
0.011g
Electronic Component
1
Electronic Component
BM0226527300
Resistor
12
Resistor
6.11kΩ
Transistor Type
NPN
Frequency(f T)
250MHz
Power Dissipation(Pd)
150mW
Electronic Component
Electronic Component

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

PDTC143ZM 数字晶体管 — 产品概述

一、产品简介

PDTC143ZM 是由 Prisemi(芯导)生产的一款集成式 NPN 数字晶体管,采用超小型 SOT-723 封装。器件内部集成了偏置电阻网络,便于与逻辑电平直接驱动,适合微控制器、便携式电子和空间受限的电路应用。其设计在保持小体积的同时提供可靠的开关性能和较高的耐压能力。

二、主要参数

  • 晶体管类型:NPN(数字晶体管)
  • 集-射极击穿电压 Vceo:50 V
  • 最大集电极电流 Ic:100 mA
  • 耗散功率 Pd:150 mW(注意封装与 PCB 散热限制)
  • 最小输入使能电压 VI(on):1.3 V
  • 输入关断阈值 VI(off):约 500 mV(测量条件 IIN = 100 μA)
  • 最大允许输入电压:5 V
  • 输入电阻:6.11 kΩ(内部电阻等效值)
  • 内部电阻比率:12(用于偏置/分压设计)
  • 封装:SOT-723

三、器件特点与优点

  • 内置偏置电阻,免去了外部基极限流电阻,简化 PCB 设计与布线。
  • 小型 SOT-723 封装,适合高密度组装与空间受限应用。
  • 较高的 Vceo(50 V),能承受较大的电压应力,增加系统可靠性。
  • 输入门槛低,VI(on) 仅需 1.3 V,可直接被 1.8 V/3.3 V/5 V 逻辑电平驱动(注意 VI(off) 与最大输入电压限制)。

四、典型应用场景

  • 单片机、FPGA 等数字电路的开关接口、缓冲与电平移位。
  • 小功率指示灯或低电流继电器驱动(注意 Ic 与 Pd 限值)。
  • 通用开关与逻辑控制,替代分立电阻+晶体管的方案以节省 BOM 与占板面积。
  • 耳机、便携设备、传感器模块等对体积和功耗敏感的场合。

五、使用建议与注意事项

  • 电流与功率限制:器件最大集电极电流为 100 mA,最大耗散功率 150 mW;在高电流或持续导通情况下需保证良好 PCB 散热并做适当去率(derating)。
  • 输入驱动:为保证可靠开关,输入电压应超过 1.3 V(VI(on))以进入导通;低于约 500 mV(在 IIN=100 μA 条件下)可认为处于关闭态。输入电压不应超过 5 V。
  • 电压应力:器件 Vceo 为 50 V,但在高压应用中仍建议添加保护(如 TVS 或限流元件)以防瞬态冲击。
  • 封装与焊接:SOT-723 封装热阻较大,手工焊接或不良焊盘设计可能影响散热和可靠性,推荐按照供应商焊接说明优化焊盘和回流曲线。
  • 负载连接方式:常见用法为将负载连接到供电正极与晶体管集电极之间,晶体管作为拉低开关(开漏式);也可根据需要做高侧或低侧配置,但注意极性与功耗。

六、封装与订购信息

  • 封装:SOT-723(超小型封装,适合高密度 PCB)
  • 制造商:Prisemi(芯导)
  • 型号:PDTC143ZM

总结:PDTC143ZM 提供了一种体积极小、易于驱动且耐压较高的数字晶体管解决方案,适合需要节省空间并简化外围电路的低功耗数字开关场景。设计时请重点评估集电极电流与封装散热能力,确保在额定范围内可靠工作。

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