WMSIC Electronic Components

CD4148WSP

ModelCD4148WSP
Package0805
BrandYONGYUTAI
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
YONGYUTAI CD4148WSP
Type
YONGYUTAI
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YONGYUTAI
Electronic Component
CD4148WSP
Electronic Component
1
Package
0805
Electronic Component
Switch Diode
Electronic Component
0.033g
Electronic Component
1
Electronic Component
BM0264770672
Current
150mA
Diode
Electronic Component
Current(Ir)
5uA@75V
(Vf)
1.25V@100mA
Power Dissipation(Pd)
200mW
Electronic Component
55℃~+150℃@(Tj)
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.

CD4148WSP 产品概述

一、产品简介

CD4148WSP 是由 YONGYUTAI(永裕泰) 提供的一款硅外延平面小信号二极管,采用 SMD 片式封装(0805 尺寸)。器件为无铅、RoHS 合规的表贴元件,适用于高速小信号开关与一般电子线路中的开关/保护功能。器件设计强调低耗散与快速恢复特性,适合对开关速度和功耗有要求的消费电子及信号处理电路。

二、主要电气参数

  • 耗散功率 (Pd):200 mW
  • 直流整流电流 (If):150 mA(连续)
  • 非重复峰值浪涌电流 (Ifsm):1 A(单次脉冲)
  • 直流反向耐压 (Vr):75 V(绝对最大额定)
  • 正向压降 (Vf):1.25 V @ 100 mA
  • 反向电流 (Ir):5 μA @ 75 V
  • 反向恢复时间 (Trr):4 ns(快速恢复,适合开关用途)
  • 工作结温范围 (Tj):-55 ℃ ~ +150 ℃

注:虽然器件额定反向耐压为 75 V,但在典型小信号应用中建议将工作反向电压控制在 60 V 以下,并在环境温度低于 55 ℃ 时使用以获得最佳长期可靠性。

三、封装与物料特性

  • 封装:0805(SMD)芯片型,生产线可提供其他尺寸(如 1206、0603)但本型号为 0805。
  • 无铅制造工艺,符合 RoHS 要求,适配无铅回流焊工艺。
  • 芯片结构为硅外延平面工艺,封装小巧,便于自动贴装与大批量生产。

四、典型应用场景

  • 高速小信号开关、逻辑电路整形与信号钳位。
  • 开关电源、小功率电路中的瞬态保护与整流(注意非高压/高功率整流场合)。
  • 消费类电子、通信设备、测量仪表中的通用小信号二极管替代件。
  • 不适用于交流开关输入作为大电流整流、亦不建议在高反向电压关键位置使用。

五、使用与注意事项

  • 功耗与散热:Pd 为 200 mW,使用时需评估 PCB 铜箔散热与器件周围热源,避免长时间高电流运行。
  • 温度限制:器件结温可达 150 ℃,但为保证可靠性,建议器件工作环境温度低于 55 ℃。
  • 反向电压:尽管 Vr=75 V,为安全起见在设计中预留裕量,常规应用建议 ≤60 V。
  • 焊接工艺:支持无铅回流焊,建议遵循厂商推荐的回流曲线与预热时间。
  • ESD 与搬运:作为小信号器件,应注意静电防护(建议在贴装与测试环节采用防静电措施)。

六、可靠性与选型建议

  • 若电路出现较大反向电压或持续较大正向电流(接近或超过 100 mA 且 Vf 显著上升),建议选用额定功耗更高或耐压更大的器件。
  • 在需要极低反向电流或超高速恢复(Trr 更小)的场合,可对比专用高速二极管或肖特基二极管的性能,选择最合适的方案。
  • 供应与替代:CD4148WSP 在传统小信号二极管类别中属于通用型号,便于在同类 0805 封装产品之间替换,但注意参数匹配(Vf、Ir、Trr、Pd 等)。

总结:CD4148WSP 以其紧凑的 0805 SMD 封装、快速恢复和合适的电流/电压等级,适合大多数小信号开关应用与一般电子线路使用。在高反向电压或高功耗场合应谨慎选型并采取相应热管理与电压裕量设计。

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