WMSIC Electronic Components

FUXINSEMI FBA54T3S

ModelFBA54T3S
PackageSOT-323
BrandFUXINSEMI
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
FUXINSEMI FBA54T3S
Type
SOT-323
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
FBA54T3S
Electronic Component
1
Package
SOT-323
Electronic Component
Schottky Diode
Electronic Component
0.033g
Electronic Component
1
Electronic Component
BM0264800405
Current
200mA
Diode
1
Current(Ir)
1.5uA@25V
(Vf)
960mV@100mA
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
32V

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

FBA54T3S 产品概述

FBA54T3S 是富芯森美(FUXINSEMI)推出的一款小型超快开关二极管器件,采用 SOT-323 小封装、1 对串联结构,针对高频开关及小功率整流场景进行了优化。该器件具备极快的开关速度和较低的正向压降,适合在空间受限且要求开关性能和效率的便携电子与通信设备中使用。

一、产品定位与主要特性

  • 极快的开关速度:适用于高频开关、脉冲整流和快速恢复场合,有助于降低开关损耗与开关期间的能量浪费。
  • 低正向电压:在 100 mA 条件下正向压降为 960 mV(数据按出厂规格给出),有利于提高整流效率、降低热耗散。
  • 小型封装:SOT-323 体积小、适合高密度 PCB 布局,便于便携与微型化产品设计。
  • 1 对串联式:器件内部为一对串联二极管组合,可满足一些对耐压或拓扑要求的应用(请以器件出厂数据为准)。

二、电气参数(关键规格)

  • 正向压降 (Vf):960 mV @ 100 mA(典型/标称测试条件)
  • 直流反向耐压 (Vr):32 V
  • 连续整流电流(正向整流电流):200 mA
  • 反向漏电流 (Ir):1.5 µA @ 25 V
  • 非重复峰值浪涌电流 (Ifsm):600 mA 这些数据反映了器件在小功率整流和快速开关场景下的能力边界。设计时请参照厂方完整数据表,考虑环境温度与封装散热限制进行适当的电流与功耗裕量设计。

三、封装与机械特性

  • 封装类型:SOT-323(超小型表贴封装)
  • 结构:1 对串联式二极管 SOT-323 封装利于高密度 PCB 设计,但受限于散热能力,连续较大电流时需在 PCB 布局上采取良好散热策略(尽量增加铜箔面积、缩短走线、必要时使用热铜垫或散热层)。

四、典型应用场景

  • 开关电源的小功率整流与续流保护
  • 高速脉冲整流、逻辑电平整流或快速切换旁路
  • 通信、电源管理与电池供电设备中的反向保护与钳位电路
  • 信号处理线路中需要低漏电和快速恢复的整流/钳位用途

五、设计与使用建议

  • 考虑串联结构:器件为 1 对串联式,规格通常以器件整对给定,设计时留意正向压降与反向耐压是否满足系统要求;若需要更高耐压或更低压降,请参考相应电路或采用并/串组合替代。
  • 热管理:SOT-323 封装的功耗承载能力有限,建议在 PCB 设计时为器件提供足够的铜面积或热流通路,避免长时间高电流工作导致温升影响可靠性。
  • 旁路与滤波:用于整流或续流时,配合合适的滤波电容或 RC 网络可以抑制尖峰电压与开关噪声,延长器件寿命。
  • 测试与预留裕度:实际应用中建议以半额以上的安全裕度选型(例如持续负载低于整流电流额定值的 70% 左右),并在高温条件下验证漏电流与正向压降变化。

六、装配与可靠性注意事项

  • 焊接建议:遵循厂家数据表与通用的焊接标准(如 JEDEC J-STD-020)进行回流焊,避免超过推荐峰值温度和过长加热时间,以防器件受损。
  • 防潮与储存:表贴封装产品通常存在湿敏性风险,请依据出厂包装与数据手册中关于 MSL(湿敏等级)的说明进行储存与返修前烘烤处理。
  • 静电防护:在装配与测试过程中做好 ESD 防护,避免静电击穿影响器件可靠性。

七、总结

FBA54T3S 以其超快开关特性、相对较低的正向压降和超小 SOT-323 封装,适用于需要高频快速整流与小型化布局的电子产品。器件的 32 V 反向耐压与 200 mA 连续整流能力使其能够胜任移动设备、电源管理与通信模块中的多种小功率整流与保护任务。最终选型与电路实现应以完整数据手册为依据,结合实际应用场景对热设计、余量及焊接工艺进行合理规划。若需更详细的电气特性曲线、封装尺寸或推荐 PCB 布局,建议参照 FUXINSEMI 提供的完整资料或联系供应商获取原始数据手册。

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