WMSIC Electronic Components

UMW BT138D-800E BT138D

ModelBT138D-800E
PackageTO-252
BrandUMW
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
UMW BT138D-800E
Type
UMW
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
BT138D-800E
Electronic Component
1
Package
TO-252
Electronic Component
Thyristor (SCR) / Module
Electronic Component
0.363g
Electronic Component
1
Electronic Component
BM0229956516
Operating Temperature
40℃~+125℃
Surge Current
120A
Thyristor Type
1 Thyristor
Latching Current(Ih)
60mA
Current(It)
12A
Electronic Component
Electronic Component
Electronic Component
2500

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

BT138D-800E 产品概述

一、产品简介

BT138D-800E 是一款由 UMW(友台半导体)提供的双向可控硅(TRIAC),定位为标准 800 V、12 A 的表面贴装功率器件。器件采用 TO-252 封装,适合在受限空间内实现交流电路的可靠通断与相位控制,广泛用于家电、照明调光、温控及小功率电机控制等应用。

二、主要性能参数

  • 可控硅类型:双向可控硅(TRIAC)
  • 断态峰值电压 Vdrm:800 V
  • 通态电流 It(连续):12 A
  • 通态峰值电压 Vtm:1.5 V(导通压降典型值)
  • 浪涌电流(单次峰值):120 A
  • 门极触发电压 Vgt:1.5 V(典型)
  • 门极触发电流 Igt:50 mA
  • 保持电流 Ih:60 mA
  • 门极平均耗散功率 PG(AV):1 W
  • 工作温度范围:-40 ℃ ~ +125 ℃

这些参数表明 BT138D-800E 在中等功率的交流开关场合表现稳定,具备较高的耐压和短时浪涌能力。

三、典型应用

  • 灯光调光与交流负载相位控制
  • 小型风扇、电动工具及家用电器的速度/温度控制
  • 恒温器、加热器与温度控制回路
  • 工业控制中的交流开关与保护电路
    在需要双向交流控制且空间或安装方式要求表面贴装时,TO-252 封装优势明显。

四、封装与散热注意事项

TO-252(表面贴装)封装有利于自动贴装与回流焊工艺,但与传统塑封 TO-220 相比散热能力有限。使用时建议:

  • 在 PCB 上设计合适的散热铜箔与热 vias,以提高散热效率;
  • 考虑与外部散热片或加大铜面积配合使用,避免长期在额定电流附近运行;
  • 注意门极驱动电路的耐压与抖动抑制,必要时配合 RC 抑制网以防误触发。

五、使用与选型建议

选型时应综合考虑断态耐压、平均/峰值电流及环境温度。如工作环境常有较大浪涌或需要更低门极驱动电流,可评估更高浪涌能力或低触发电流型号。门极驱动电流 Igt 为 50 mA,门极触发电压约 1.5 V,驱动电路需能提供稳定的触发脉冲并避免长期大功率耗散超过 PG(AV)=1 W。实际电路中,添加合适的门极阻抗、RC 缓冲和过流保护,可显著提升系统可靠性。

总结:BT138D-800E 为一款性能均衡、适合表面贴装的 800 V/12 A TRIAC,适用于多种中低功率交流控制场景,若重视散热与门极驱动设计,可获得长期稳定的工作表现。

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