WMSIC Electronic Components

UTC 2SD1898G-Q-AB3-R 2SD1898G

Model2SD1898G-Q-AB3-R
PackageSOT-89-3
BrandUTC
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UTC 2SD1898G-Q-AB3-R
Type
UTC
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UTC
Electronic Component
2SD1898G-Q-AB3-R
Electronic Component
1
Package
SOT-89-3
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.144g
Electronic Component
1
Electronic Component
BM0226338216
Transistor Type
NPN
Frequency(f T)
100MHz
Power Dissipation(Pd)
500mW
Electronic Component
Electronic Component
Electronic Component
4000
Collector Current(Ic)
1A

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

2SD1898G-Q-AB3-R 产品概述

一、产品概览

2SD1898G-Q-AB3-R 是 UTC(友顺)推出的一款 NPN 功率型晶体管,适用于中低功率开关与放大场合。典型参数为:集电极电流 Ic 可达 1A、集电极-发射极击穿电压 Vceo 80V、耗散功率 Pd 500mW,配 SOT-89-3 小型封装,适合空间受限的便携与板载应用。

二、电气特性(关键参数)

  • 直流电流增益 hFE = 120(测量条件:Ic = 500mA,Vce = 3V)
  • 集电极截止电流 Icbo = 1µA(典型,反向泄漏小)
  • 特征频率 fT = 100MHz,适合数十 MHz 范围内的高频放大/驱动
  • Vceo = 80V,适用于中等电压场合的开关与线性放大
  • Vebo = 5V,注意基极-发射极反向电压限制
  • VCE(sat) ≈ 400mV @ Ic = 500mA, Ib = 20mA(说明强迫 β 约为25)

三、封装与热管理

封装为 SOT-89-3,体积小、焊接方便,适合表面贴装生产。封装散热能力有限,Pd 为 500mW 表明在无额外散热条件下不宜长时间在高电流高电压下工作。实际电路中应注意热沉面积和 PCB 铜箔扩展,必要时采用散热铜区或多层板热通孔以降低结壳温升并做好功率和温度的降额设计。

四、典型应用

  • 低功耗开关电路与小功率电机驱动(间歇工作)
  • 电源管理:小功率线性稳压或辅助驱动晶体管
  • 音频前级或驱动级的放大器(中低频至几十 MHz)
  • DC-DC 转换器中的控制/驱动元件(注意热耗与开关损耗)

五、设计注意事项与建议

  • 驱动基极电流:若要求开关进入饱和,可按经验取 Ib ≈ Ic/10~Ic/25;针对 VCE(sat) 测试条件(Ib=20mA, Ic=500mA),推荐在高电流开关场合保证足够基极驱动以减小饱和压降与功耗。
  • 工作点与降额:虽 Ic 最大值 1A,但受限于 Pd(500mW),应根据实际 PCB 散热能力进行电流与占空比降额计算,避免结温过高。
  • 反向基极电压限制:Vebo = 5V,避免基极-发射极反向施加过高电压以免损伤结。
  • 高频性能:fT=100MHz,适合对带宽有要求的放大器,但在高频开关时需考虑寄生电感、电容对开关损耗的影响。

六、可靠性与装配建议

  • 引脚排列与焊盘:SOT-89-3 常用封装,请以官方数据手册为准确认引脚定义与推荐焊盘尺寸。
  • 焊接工艺:支持回流焊,遵循标准回流曲线,避免长时间高温。
  • ESD 防护:按常规半导体元件采取防静电措施存储与操作。
  • 测试与验证:在样片验证阶段关注在目标 PCB 上的结温、饱和压降与开关损耗,确保长期可靠性。

总结:2SD1898G-Q-AB3-R 在体积与性能之间提供了良好平衡,适用于需要中等电压耐受、较高增益和有限功率散耗的便携或板载电路。选型时以实际 PCB 散热条件和占空比分配为关键考量。若需引脚图、热阻或更详细参数,请参考 UTC 官方数据手册。

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