WMSIC Electronic Components

SHIKUES BAT42W

ModelBAT42W
PackageSOD-123
BrandSHIKUES
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
SHIKUES BAT42W
Type
SHIKUES
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SHIKUES
Electronic Component
BAT42W
Electronic Component
1
Package
SOD-123
Electronic Component
Switch Diode
Electronic Component
0.039g
Electronic Component
1
Electronic Component
BM0257628045
Current
200mA
Diode
Electronic Component
Current(Ir)
500nA@25V
(Vf)
1V@200mA
Power Dissipation(Pd)
200mW
Electronic Component
55℃~+125℃
Electronic Component
Electronic Component

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

BAT42W 开关二极管 产品概述

一、产品概述

BAT42W(品牌:SHIKUES/时科)是一款独立式小信号开关二极管,采用 SOD-123 小封装,专为高速开关、整流与保护场景设计。器件在 200mA 工作电流下保持低正向压降(Vf≈1V),同时具备较低的反向漏电流与快速的反向恢复特性,适合便携设备、信号切换与保护电路中占板面积受限的场合。

二、主要特点

  • 低正向压降:Vf = 1V @ If = 200mA,有利于降低功耗与热耗散。
  • 低反向漏流:Ir = 500nA @ Vr = 25V,适合对漏电要求严格的低功耗应用。
  • 快速恢复:反向恢复时间 Trr = 5ns,支持高速开关与脉冲应用。
  • 中等耐压:最大直流反向耐压 Vr = 30V,满足一般低压电源与信号保护需求。
  • 良好冲击能力:单次非重复峰值浪涌电流 Ifsm = 4A,可承受短时浪涌冲击。
  • 小尺寸封装:SOD-123,便于表面贴装生产与高密度电路板应用。

三、主要电气参数(典型/额定)

  • 正向压降(Vf):1V @ If = 200mA
  • 最大整流电流:200mA(DC)
  • 直流反向耐压(Vr):30V
  • 反向电流(Ir):500nA @ Vr = 25V(25℃)
  • 反向恢复时间(Trr):5ns
  • 功耗耗散(Pd):200mW
  • 非重复峰值浪涌电流(Ifsm):4A
  • 工作结温范围:-55℃ ~ +125℃

以上参数为器件的关键指标,在实际设计中应结合PCB散热条件与环境温度进行余量设计。

四、封装与热性能

BAT42W 采用 SOD-123 小型表贴封装,适合自动贴装与回流焊工艺。封装体积小,热阻相对较高,因此在接近额定电流或连续工作时应注意:

  • 控制结温低于额定上限(Tj ≤ +125℃),并考虑周围元件与PCB铜箔散热布局。
  • 在高频脉冲或连续大电流场景下,限制平均功耗,必要时采用并联或选择更大功耗器件。

五、典型应用

  • 高频开关与脉冲整流电路
  • 输入逆向保护与反接保护
  • 低功耗便携设备的信号切换与保护
  • 通信模块、传感器接口的快速开关元件

在这些应用中,BAT42W 可凭借低 Vf、快速 Trr 与小体积特点提供性能与空间利用率的平衡。

六、使用与可靠性建议

  • 建议按标准 SMT 回流工艺完成焊接,避免长时间加热导致封装应力或性能退化。
  • 做 PCB 设计时,适当加大焊盘铜量以改善散热,并留有热通路以降低结温。
  • 在高温、高湿或强浪涌环境中,考虑提升安全余量或选用更高耐压/更大功耗的替代型号。
  • 储存与搬运应防潮、防静电,开封后尽快使用以避免元件受潮影响焊接可靠性。

七、订购信息与品牌说明

  • 品牌:SHIKUES(时科)
  • 封装:SOD-123(独立式)
  • 型号:BAT42W
    在选型与批量采购前,建议向供应商索取详细数据手册以及样片进行实际电路验证,确保器件在目标应用中的长期可靠性与性能符合要求。

以上为 BAT42W 的产品概述与使用建议,如需完整电气特性曲线、封装尺寸图或回流焊温度曲线,可提供进一步资料以便精确设计验证。

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