WMSIC Electronic Components

1SS387,L3F(T 1SS387

Model1SS387,L3F(T
PackageSOD-523
BrandTOSHIBA
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TOSHIBA 1SS387, L3F(T
Type
TOSHIBA
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TOSHIBA
Electronic Component
1SS387,L3F(T
Electronic Component
1
Package
SOD-523
Electronic Component
Switch Diode
Electronic Component
0g
Electronic Component
1
Electronic Component
BM0229463936
Current
100mA
Current(Ir)
500nA
(Vf)
1.2V@100mA
Power Dissipation(Pd)
150mW
Electronic Component
Electronic Component
Electronic Component
8000
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.

1SS387,L3F(T — 开关二极管产品概述

一、产品简介

1SS387,L3F(T) 是东芝(TOSHIBA)生产的高速开关二极管,采用超小型 SOD-523 封装,面向对体积和切换速度有较高要求的小信号应用。该器件具有较低的正向压降、较小的反向漏电流以及快速的反向恢复特性,适合高频、快速开关电路中的整流、钳位、检波与保护等功能。

品牌:TOSHIBA(东芝)
封装:SOD-523(超小表面贴装)
型号:1SS387,L3F(T)

二、主要参数

  • 正向压降 Vf:1.2 V @ 100 mA
  • 直流反向耐压 Vr:80 V
  • 额定整流电流 If:100 mA(连续)
  • 功耗耗散 Pd:150 mW
  • 反向电流 Ir:500 nA(典型/规格值)
  • 反向恢复时间 Trr:4 ns(快速恢复)
  • 非重复峰值浪涌电流 Ifsm:1 A

(以上为器件典型/额定参数,设计时请参考东芝正式数据手册以获取完整测试条件与极限额定值。)

三、性能特点

  1. 小体积、高密度组装:SOD-523 封装尺寸极小,适合高密度表贴电路板,节省 PCB 面积。
  2. 快速响应:反向恢复时间约 4 ns,适用于高频开关与快速脉冲信号处理,能显著减少开关损耗与反向恢复相关的干扰。
  3. 低漏电与较高耐压:反向电流仅 500 nA,直流反向耐压达 80 V,可在较高反向电压条件下工作,适合要求低漏电的保持/检波电路。
  4. 小信号整流能力:额定整流电流 100 mA,正向压降 1.2 V(@100 mA),在小电流应用中具有良好的整流效率。
  5. 耐浪涌能力:非重复峰值浪涌电流 1 A,可承受短时脉冲性浪涌,但长期或频繁浪涌需注意温升与应力。
  6. 限制功耗:最大耗散功率 150 mW,器件热容受限,需合理控制平均功率以避免过热。

四、典型应用场景

  • 高频开关电路中的整流与钳位(例如开关电源辅助电路、驱动电路)
  • 信号检波与包络检测(无线接收前端、音频检波)
  • 保护与限幅电路(防止反向高压或瞬态尖峰)
  • 小信号切换与逻辑级接口(快速切换、低漏电需求环境)
  • 混合信号与便携终端中的电源路径管理(体积受限场合)

五、封装与焊接、布局建议

  • 焊接:推荐采用回流焊工艺,遵循东芝提供的回流温度曲线和时间限制,避免过高温度或过长加热时间导致封装应力。
  • PCB 布局:为最小化寄生电感与寄生电容,走线尽量短且粗,焊盘设计遵循 SOD-523 推荐尺寸,避免在器件下方铺大铜面以免影响散热均匀性。
  • 热管理:器件耗散功率仅 150 mW,应避免在高环境温度或连续大电流工况下工作;必要时通过电路限制平均电流或增加器件并联(谨慎评估均流问题)。
  • ESD 与静电防护:超小封装更易受静电损伤,装配与测试时注意静电防护措施(接地腕带、离子风等)。

六、选型与注意事项

  • 应用电流与功耗评估:虽然 If 可达 100 mA,但 Pd 仅 150 mW,长期在 100 mA 下工作可能导致超过耗散极限。设计时应换算实际环境温度下的功耗并适度降额。
  • 高频性能:Trr = 4 ns 表明器件适合 MHz 级应用,但在更高频或对开关损耗极其敏感的场景,应与更低 Trr 或专用肖特基二极管比较后决定。
  • 漏电要求:Ir = 500 nA 在多数小信号场合属较低水平,但对超低待机电流系统仍需验证实际漏电与温度相关性。
  • 替代选择:若需要更低正向压降(肖特基),或更高功率/电流能力,应考虑不同类型二极管或更大封装的器件。
  • 可靠性验证:在正式量产前,建议进行温升、浪涌、长期老化与电气应力测试,确认在目标工况下的稳定性。

总结:1SS387,L3F(T) 是一款面向小信号、高速开关场合的通用开关二极管,兼具较高耐压与低漏电特性,适用于体积受限且要求快速响应的电子设计。在使用时重点关注耗散功率与平均电流的限制,并按厂商封装与焊接建议进行布局与工艺控制。

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