WMSIC Electronic Components

KUU BAT46WJ

ModelBAT46WJ
PackageSOD-323
BrandKUU
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
KUU BAT46WJ
Type
KUU
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
BAT46WJ
Electronic Component
1
Package
SOD-323
Electronic Component
Schottky Diode
Electronic Component
0.025g
Electronic Component
1
Electronic Component
BM0264873516
Current
350mA
Diode
1
Current(Ir)
500nA@10V
(Vf)
1V@250mA
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
100V

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

BAT46WJ 产品概述

BAT46WJ 是 KUU 品牌提供的一款小型独立二极管,采用 SOD-323 封装,面向需要低正向压降、较高整流能力和低反向漏电的便携式及板载电源、信号整流和保护电路应用。该器件在紧凑封装下提供良好的电流承受能力和脉冲浪涌保护,适合对体积、散热与可靠性有综合要求的电子设计。

一、主要电气参数(基于提供数据)

  • 二极管配置:1个独立式
  • 正向压降(Vf):1.0 V @ 250 mA
  • 直流反向耐压(Vr):100 V
  • 平均整流电流:350 mA
  • 反向电流(Ir):500 nA @ 10 V
  • 非重复峰值浪涌电流(Ifsm):750 mA(单脉冲,非重复)

二、关键特性与优势

  • 大电流承受能力:平均整流电流 350 mA,满足中等功率整流与保护需求。
  • 较低正向压降:在 250 mA 时 Vf=1.0 V,能够减少导通损耗,提升效率(相较某些同类小信号器件表现更优)。
  • 高反向耐压:100 V 的反向耐压适合较高电压系统中的低侧整流或反向保护场景。
  • 低反向漏电:在 10 V 时 Ir 仅 500 nA,适用于对漏电敏感的便携设备、电池保护与低功耗电路。
  • 良好的浪涌承受能力:750 mA 的单次脉冲能力,有利于应对瞬态浪涌或启动电流。

三、封装与机械信息

  • 封装类型:SOD-323(小型表面贴装封装)
  • 外形与占板面积小,适合高密度 PCB 布局与便携设备
  • SOD-323 的散热能力受限于焊盘面积和 PCB 铜箔,设计时应通过合理的铜箔扩展与焊盘设计来改善热耗散

四、典型应用场景

  • 电源整流与二次侧整流:用于小型开关电源、适配器或补偿回路的整流或续流。
  • 反向极性保护:在电源输入端作为反接保护元件,利用其较高耐压和低漏电特性减少损耗。
  • 快速开关与钳位:在高频及开关电路中起到钳位、限幅及快速恢复作用。
  • 测试与信号整形:在需要低反向漏电和稳定 Vf 的检测与前端电路中应用。
  • 瞬态浪涌保护配合:与抑制器件配合,分担短脉冲浪涌能量。

五、设计与使用建议

  • 电流与功率管理:按 Vf=1.0 V 与平均整流电流 350 mA 估算稳态功耗约 0.35 W,SOD-323 封装对热耗散有限。推荐在持续工作时:
    • 优先将稳定工作电流限制在 250–300 mA 范围内以提高可靠性;
    • 在可能的情况下通过扩大 PCB 铜箔面积、增加焊盘散热或热通孔来降低结温。
  • 浪涌与脉冲:Ifsm=750 mA 为非重复峰值,适合短时浪涌。不可持续重复使用该峰值电流,频繁脉冲可能导致器件损坏。必要时使用合适的保险丝或限流电阻。
  • 反向电压与漏电控制:100 V 的耐压裕量足以满足较高电压系统,但在高温或高电压边界工况下仍需预留安全裕量。若系统对漏电极为敏感,应注意工作电压与温度对 Ir 的影响。
  • 与感性负载配合:用于感性负载(如电机、继电器)时,建议配合 RC 吸收、电感放电路径或 TVS 器件共同使用以抑制反向高压尖峰,对二极管减少电压应力。
  • 焊接与可靠性:采用推荐的回流焊工艺,避免过高的峰值温度与过长的加热时间以保护封装与内部结构。

六、选型与采购提示

  • 品牌与型号:KUU - BAT46WJ,确认封装为 SOD-323,单个独立二极管配置,规格书参数与样片测试一致时方可批量使用。
  • 应用验证:在具体电路中进行热仿真与实测验证,尤其在长时间高电流工况下验证结温与功率耗散。
  • 替代与兼容:如需更低 Vf 或更高浪涌能力,可考虑更大封装或专用肖特基/快恢复整流器件;如需更低漏电可选低漏型器件。替换时注意 Vr、Ifsm 与封装的匹配。

总结:BAT46WJ 在 SOD-323 小型封装中提供了良好的整流电流能力、较低正向压降、较高耐压及低漏电,适合体积受限且对热管理有所考虑的中等功率整流与保护应用。设计时注重散热优化与浪涌保护,可发挥其最佳性能并保证长期可靠性。

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