WMSIC Electronic Components

ROHM DTC015EMT2L

ModelDTC015EMT2L
PackageSOT-723
BrandROHM
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ROHM DTC015EMT2L
Type
ROHM
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ROHM
Electronic Component
DTC015EMT2L
Electronic Component
1
Package
SOT-723
Electronic Component
1 NPN
Electronic Component
Digital Transistor
Electronic Component
0.01g
Electronic Component
1
Electronic Component
BM0228685888
Resistor
1.2
Resistor
130kΩ
Frequency(f T)
250MHz
Power Dissipation(Pd)
150mW
Electronic Component
Electronic Component
Electronic Component
8000

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

DTC015EMT2L 产品概述

一、产品简介

DTC015EMT2L 是 ROHM(罗姆)出品的一款预偏置(pre‑biased)NPN 晶体管,采用超小型 SOT‑723(3‑pin VMT)封装,专为数字电路中的开关、驱动与接口功能设计。器件具有50V的集射极击穿电压(Vceo)、150mW 的最大耗散功率和较高的直流电流增益(hFE=80@Ic=5mA、Vce=10V),适合在空间受限且需要可靠开关性能的场合使用。

二、主要电气参数

  • 极性:NPN,预偏置(内置基极偏置网络,便于直接由逻辑信号驱动)
  • 集射极击穿电压 Vceo:50V(器件在此电压以下工作可保证安全裕度)
  • 集电极电流 Ic(额定):20mA(连续工作条件下)
  • 最大耗散功率 Pd:150mW(需按环境温度和散热条件降额使用)
  • 直流电流增益 hFE:约 80(条件:Ic=5mA,Vce=10V)
  • 封装:SOT‑723(3 引脚,适合高密度贴片生产)
  • 品牌:ROHM(罗姆)

注:器件描述中亦见“100mA”的短时或峰值电流信息,针对短脉冲能力建议参照 ROHM 官方数据手册确认具体脉冲极限与脉冲宽度条件,设计时以连续额定 Ic=20mA 和 Pd=150mW 为保守依据。

三、结构与封装优势

SOT‑723(3‑pin VMT)为超小型贴片封装,体积小、引脚间距紧凑,适用于高密度 PCB 布局。预偏置设计在晶体管的基极与输入端之间集成了限流/偏置电阻,简化外围电路,无需额外基极电阻即可直接由逻辑电平驱动(但仍需关注输入电平和所需基极电流以避免超出内部电阻承受能力)。该封装易于自动贴装与回流焊接,适用于消费类电子、便携设备、通信模块等对尺寸和自动化装配有严格要求的产品。

四、典型应用场景

  • 数字信号接口与电平移位:将 MCU 或数字芯片的逻辑输出直接驱动外部开关或小功率负载,利用预偏置特性简化电路设计。
  • LED 驱动与指示灯控制:驱动小电流指示 LED 或状态信号(注意在设计中考虑 Pd 与 Ic 限值)。
  • 开关与复位电路:作为低侧开关或拉低驱动使用,应用于复位、使能控制等逻辑管理场景。
  • 集成模块内的信号缓冲:在空间受限的模块中用作缓冲和隔离器件,提升系统可靠性。

五、设计与使用建议

  1. 热管理与降额设计:Pd=150mW 为器件耗散上限,实际使用中应根据工作环境温度、PCB 散热能力和连续负载情况进行降额。高环境温度或靠近热源时需减小连续集电极电流或增加散热面积。
  2. 基极输入驱动:尽管为预偏置器件,仍需确保输入驱动电平与器件内部偏置匹配,避免长时间施加超额输入电流导致内部电阻过热。对于较高 Ic 需求,应评估是否需要外部限流措施或选用更大功率器件。
  3. 开关速度与寄生效应:SOT‑723 及预偏置结构在快速开关场合具有良好表现,但在高频切换或有长布线时需关注寄生电容、绕组及上升/下降时间对系统信号完整性的影响。
  4. 保护与可靠性:在可能出现反向高压、浪涌或反向电流的应用中,建议加入额外的抑制元件(如二极管、限流器等)以保护晶体管及系统。

六、选型对比与注意事项

  • 若系统需要更高连续集电极电流或更大功率耗散,应考虑功率级别更高的封装或线性/开关场景专用晶体管。
  • 在对开关速度、饱和压(Vce(sat))有严格要求的场合,建议参考完整数据表中饱和电压、开关时间等典型值进行评估。
  • 若应用对温度漂移或长期稳定性敏感,应查看生产商可靠性数据及建议的工作温度范围,并在设计中留足余量。

七、总结

DTC015EMT2L 以其预偏置设计、50V 的耐压能力、较高的 hFE 以及超小 SOT‑723 封装,适合用于空间受限且对数字开关与驱动有可靠性要求的应用场合。设计时重点关注 Pd 与连续 Ic 的降额、输入驱动与内部偏置匹配以及封装散热条件,必要时参照 ROHM 官方数据手册获取更详细的极限、脉冲规格与典型参数以确保长期稳定可靠运行。

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