WMSIC Electronic Components

ElecSuper BSS138PS

ModelBSS138PS
PackageSOT-363
BrandElec Super
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
Elec Super BSS138PS
Type
ELECSUPER
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
BSS138PS
Electronic Component
1
Package
SOT-363
Electronic Component
2 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.043g
Electronic Component
1
Electronic Component
BM0234667629
Operating Temperature
50℃~+150℃
Power Dissipation(Pd)
417mW
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
60V

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

BSS138PS 产品概述

BSS138PS(品牌:ElecSuper/静芯微)为双通道 N 沟道场效应管(双管封装,SOT-363),适用于低功耗、小信号开关与电平转换等应用场景。该器件在小封装下提供较高的耐压能力和较低的输入电容,便于高速逻辑接口和受限空间的电路设计。

一、主要参数

  • 器件类型:双 N 沟道 MOSFET(2 个 N 沟道)
  • 漏源电压 Vdss:60 V
  • 连续漏极电流 Id:410 mA
  • 导通电阻 RDS(on):1.5 Ω @ VGS=10 V;1.6 Ω @ VGS=4.5 V
  • 功耗 Pd(结温相关标称):417 mW
  • 阈值电压 VGS(th):1.0 V @ ID=250 µA
  • 总栅极电荷 Qg:650 pC @ VGS=4.5 V
  • 输入电容 Ciss:25 pF;输出电容 Coss:9.7 pF;反向传输电容 Crss:2.2 pF
  • 工作温度范围:-50 ℃ ~ +150 ℃
  • 封装:SOT-363(双通道小外形)
  • 品牌:ElecSuper(静芯微)

(注:产品描述中有时标注为“300 mW / 50 V / 300 mA”,但以上参数以本规格表为准,请在设计时以采购方提供的最新版数据手册为最终依据。)

二、核心特性与性能解读

  • 高耐压:60 V 的 Vdss 使器件适用于较高电压边界的开关场合,适合 12 V、24 V 以及更高系统中的辅助开关或电平隔离。
  • 低导通电阻:在小封装条件下 RDS(on) 在几欧姆量级,适合低电流开关与逻辑级负载驱动,但不适合大电流传输或功率开关。
  • 栅极电荷较大:Qg=650 pC 在 4.5 V 驱动下属于偏高值,说明器件在频繁切换或较高开关频率时会带来显著的驱动能量与开关损耗,需注意驱动能力与功耗管理。
  • 电容特性:Ciss、Coss、Crss 的组合表明该器件对高速开关有一定适配性,但需配合驱动器和阻尼设计以抑制振铃和电磁干扰。

三、典型应用场景

  • 低压数字电平转换(双路电平移位)
  • 小信号开关、复用器(I/O 保护与隔离)
  • 电池管理电路中低电流断开/导通控制
  • 抗静电与浪涌保护的辅助开关元件
  • 便携设备与紧凑型模块的功率路径控制(低电流场合)

四、使用与热设计建议

  • 由于器件 Pd 约为 417 mW,且封装为 SOT-363,建议在 PCB 设计中增加铜箔散热面积、减少焊接热阻,并尽量降低持续平均功耗。
  • 对于开关频率较高的应用,注意栅极驱动能量和器件发热,必要时添加 RC 阻尼、软启动或选择更低 Qg 的驱动方案。
  • 在设计环境温度较高时,要按结温-功耗关系重新计算允许的平均电流,避免在高温下长期接近额定功耗运行。

五、封装与引脚注意

  • SOT-363 小封装适合高密度布板,但对焊盘和回流温度敏感;建议按照厂家焊接资料设置回流曲线并控制焊盘尺寸以保证焊接可靠性。
  • 双通道封装在 PCB 布局时要考虑两路间隔离与散热相互影响,必要时做分区散热或增加过孔导热。

六、选型要点与注意事项

  • 若应用中存在较大持续电流或较高开关频率,应优先考虑 RDS(on) 更低、Qg 更小的替代器件;本器件更适合低电流、低频或静态开关场合。
  • 对于 ESD、浪涌要求严格的系统,需在外部配合 TVS 或限流元件以保护 MOSFET。
  • 在批量采购与设计定版前,建议索取 ElecSuper 正式数据手册与样片进行实测验证。

七、可靠性与存储

  • 建议按行业常规进行防潮包装储存(MOPP/湿敏等级参考厂家说明),避免长时间暴露在潮湿或强腐蚀性环境中。
  • 在高可靠性应用中,应进行加速老化与热循环测试以验证长期稳定性。

总结:BSS138PS 为小封装、耐压较高的双 N 沟道 MOSFET,适合低功耗、低电流的开关与电平转换应用。设计时应关注栅极驱动能量与散热限制,选择合适的 PCB 和驱动方案以保证可靠工作。

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