WMSIC Electronic Components

GOODWORK D882

ModelD882
PackageSOT-89
BrandGOODWORK
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
GOODWORK D882
Type
GOODWORK
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GOODWORK
Electronic Component
D882
Electronic Component
1
Package
SOT-89
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.138g
Electronic Component
1
Electronic Component
BM0263571078
Operating Temperature
55℃~+150℃
Transistor Type
NPN
Frequency(f T)
90MHz
Power Dissipation(Pd)
10W
Electronic Component
Electronic Component
Electronic Component
1000

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

D882 产品概述

D882 为 NPN 中功率晶体管(GOODWORK 固得沃克品牌),在 SOT-89 小封装下实现较高电流能力与较好的频率特性,适合用于低压中等电流的开关和放大场合。该器件在设计上兼顾了高电流增益与便于散热的小型化封装,适用于空间受限但需处理数安培电流的应用。

一、主要特性

  • 晶体管类型:NPN(单只)
  • 集电极电流 Ic:3A(最大)
  • 集–射击穿电压 Vceo:30V(最大)
  • 耗散功率 Pd:10W(封装与散热条件下的额定值)
  • 直流电流增益 hFE:典型 400(给定工作点 20mA、VCE≈2V)
  • 特征频率 fT:90MHz(高频放大能力)
  • 集电极截止电流 Icbo:1µA(典型,低泄漏)
  • 集–射饱和电压 VCE(sat):500mV(典型)
  • 射–基击穿电压 Vebo:5V(注意不要反向施加过高电压)
  • 工作温度范围:-55℃ ~ +150℃

二、电气与工作要点

  • 电压与电流限制:器件适用于 VCE ≤ 30V、IC ≤ 3A 的工作场景。超过此限会造成永久损坏,应在电路设计中留有充分裕量。
  • 增益特性:在小电流条件下(例如 20mA)hFE 可达 400,适合做前级放大或作为电流缓冲/驱动。但在接近最大电流或进入饱和区时,有效增益会显著下降,设计时应基于实际工作点选取基极驱动电流。
  • 饱和驱动建议:若用于开关饱和导通,建议按经验将基极驱动电流设置为 IC/10 至 IC/20 的范围以保证低 VCE(sat)。
  • 漏电与温度:Icbo 为 1µA 量级,漏电小,但随温度上升漏电会增加;在高温环境(接近 150℃)应评估漏电和功耗带来的影响。
  • 基–射反向保护:Vebo 为 5V,注意不要反向施加超过此值的电压以免损坏基极结。

三、封装与热管理

  • 封装:SOT-89,小型三脚封装,适合表面贴装,兼顾体积和散热性能。
  • 热设计:额定耗散 Pd 为 10W,但实际可达值依赖于 PCB 铜箔面积、焊盘设计和环境散热条件。推荐在高功率或连续工作情况下采用足够的散热铜箔、热过孔或搭配散热片的 PCB 设计,并进行温升仿真或测量验证。

四、典型应用场景

  • 低压电源线性或开关稳压器的中功率侧晶体管
  • 音频放大器的驱动级或缓冲级(小信号放大、推挽驱动前级)
  • 微控制器驱动的低压负载开关(电机小功率控制、继电器驱动)
  • 通用开关与放大用途,尤其在空间受限且需 1–3A 电流的应用中表现良好

五、使用建议与注意事项

  • 驱动与保护:对基极加入限流电阻;在感性负载(电机、继电器)驱动时添加反向二极管或 RC 抑制网络以吸收回灌电压,防止 Vce 或 Vbe 突变损坏器件。
  • 启动与过流保护:系统设计应包含过流与过温保护策略,避免长时间工作在边界条件下(例如接近 Ic、Vceo 极限)。
  • 测试与验证:在样机测试中重点测量 VCE(sat)、增益随电流变化曲线及结温上升,对 PCB 的热阻和实际 Pd 限制进行评估,确保长期可靠性。
  • 储存与焊接:按常规半导体元件规范进行储存,SOT-89 为常见贴片封装,焊接时注意回流曲线以避免超温损伤。

总结:GOODWORK D882 在 SOT-89 小封装下提供了 3A 电流能力、30V 耐压和高 hFE 的组合,适合多种低压中功率放大与开关应用。合理的基极驱动、良好的 PCB 散热设计与必要的保护电路能确保器件在实际应用中稳定可靠。若需获得更详尽的电气特性曲线与热阻数据,建议参考厂方完整数据手册或联系供应商索取测量条件下的详细参数表。

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