WMSIC Electronic Components

Hottech 1SS355

Model1SS355
PackageSOD-323
BrandHottech
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
Hottech 1SS355
Type
HOTTECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HOTTECH
Electronic Component
1SS355
Electronic Component
1
Package
SOD-323
Electronic Component
Switch Diode
Electronic Component
0.029g
Electronic Component
1
Electronic Component
BM0229946192
Current
100mA
Diode
Electronic Component
Current(Ir)
100nA@80V
(Vf)
1.2V@100mA
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
80V

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

1SS355 产品概述

1SS355(品牌:Hottech / 合科泰)是一款小尺寸独立式开关二极管,封装为 SOD-323,专为高速开关与信号整流场合设计。器件在 100mA 工作点具有较低正向压降,反向耐压达 80V,反向漏电低且恢复时间短,适用于便携式和空间受限的电子设备中作为高频开关、钳位或保护元件。

一、核心参数

  • 器件类型:独立式开关二极管(SOD-323 封装)
  • 正向压降 Vf:1.2V @ If = 100mA
  • 直流反向耐压 Vr:80V
  • 连续整流电流 If(AV):100mA
  • 反向漏电流 Ir:100nA @ Vr = 80V
  • 反向恢复时间 Trr:4ns(高速切换性能)
  • 非重复峰值浪涌电流 Ifsm:500mA

二、产品特点

  • 低正向压降:在 100mA 条件下 Vf≈1.2V,有利于降低导通损耗与热量产生。
  • 低反向漏电:80V 时漏电仅约 100nA,适合高阻节点与低功耗电路。
  • 快速恢复:4ns 的 Trr 值使其在高频开关、混频或脉冲电路中保持良好性能,减少切换损耗与干扰。
  • 紧凑封装:SOD-323 体积小,利于高密度 PCB 布局与自动贴装生产。

三、典型应用场景

  • 高频开关与脉冲整流电路(如开关电源辅助环节、快速整流)
  • 信号钳位、保护与限幅(防止输入突波、电平保护)
  • 混频、检波与射频前端的开关/检波器件(频率较高但功率不大场合)
  • 便携类、低功耗电子设备中作为小电流整流或保护元件

四、封装与可靠性

SOD-323 为业内常见小型贴片封装,适合自动化贴片生产。器件应按照制造商建议的焊接曲线进行回流焊,常见工艺峰值温度为 260°C(具体参考合科泰数据手册)。小封装对热阻与散热条件敏感,连续使用时应关注环境温度和 PCB 散热设计。

五、使用建议与注意事项

  • 工作点限制:连续正向电流请勿超过 100mA;避免长期在峰值浪涌 Ifsm 附近工作。
  • 反向电压裕量:在实际电路中建议留有一定裕度,避免 Vr 在瞬态条件下超过 80V。
  • PCB 设计:小封装对焊盘和焊膏量敏感,建议按制造商推荐封装尺寸与焊盘拓扑设计,保证焊接可靠性与热路径。
  • 静电与储存:建议在贴装前做好防静电保护与干燥储存,避免潮湿导致焊接缺陷。
  • 仪器测量:测试正向压降与恢复时间时请在指定测试条件下进行比对,环境温度会影响 Vf 与 Ir。

六、典型电路参考

  • 高速整流:用于二极管桥或单端整流,适合小电流高频整流需求。
  • 电平钳位:与限流电阻配合用于信号线过压保护或电平翻转。
  • 快速开关:在开关阵列或驱动器的保护回路中,用于快速切换与抑制反向电压尖峰。

总结:1SS355(Hottech / 合科泰,SOD-323)以其低 Vf、低 Ir、短 Trr 和小体积特点,适合需要高速开关与低功耗整流的场合。选型时注意电流与电压的额定限制以及热管理与焊接工艺,能够获得稳定且高效的电路表现。如需更详细的封装尺寸、热参数与回流曲线,请参照合科泰官方数据手册。

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