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KUU 1N5819WS SL
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KUU 1N5819WS SL
- Type
- KUU
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KUU
- Electronic Component
- 1N5819WS SL
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.029g
- Electronic Component
- 1
- Electronic Component
- BM0264356205
- Current
- 1A
- Diode
- Electronic Component
- Current(Ir)
- 75uA@6V
- (Vf)
- 900mV@3A
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage Rating(Vr)
- 40V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1N5819WS SL 产品概述
一、产品简介
1N5819WS SL 是 KUU 品牌的一款独立式肖特基（Schottky）整流二极管，采用 SOD-323 表面贴装封装。该器件针对高效率、低压降的整流和保护用途设计，兼具小体积和较好的冲击耐受能力，适合移动设备、电源管理和高频开关场合。
二、主要电气特性
- 正向压降（Vf）：约 0.9V（测试条件 3A，脉冲）。
- 额定整流电流（Io）：1A（连续整流）。
- 直流反向耐压（Vr）：40V。
- 反向漏电流（Ir）：75µA（在 Vr=6V 时）。
- 非重复峰值浪涌电流（Ifsm）：25A（单次浪涌脉冲能力）。
说明：数据中 Vf 在 3A 条件下给出，通常为脉冲测试项；器件长期连续工作时应以 1A 连续整流额定值为设计基准，以保证温升与可靠性。
三、封装与机械特性
- 封装类型：SOD-323（小型贴片封装）。
- 优势：体积小、焊盘占用面积低，适合空间受限的 PCB 布局。
- 建议焊盘和回流工艺按厂方推荐的 PCB land pattern 和温度曲线执行，以避免焊接缺陷或应力导致的机械损伤。
四、关键优势
- 低正向压降：相较于普通硅整流二极管，肖特基二极管的 Vf 更低，可降低整流损耗与发热，提高整体系统效率。
- 快速恢复特性：肖特基结构无存储电荷，开关损耗低，适合高频开关电源或 PWM 驱动。
- 良好的浪涌承受能力：25A 的非重复峰值浪涌能力可满足启动瞬间或短时过流冲击场景。
- 小封装、高密度应用友好：SOD-323 有利于手机、可穿戴、便携充电器等小型化产品设计。
五、典型应用场景
- 开关电源（D1 整流、回收二极管）
- DC-DC 转换器输出整流
- 反向保护与防反接电路
- 电池充放电路径与电源路径管理
- 高频脉冲环境中的快速整流场合
六、使用与装配建议
- 在高电流应用（接近或超过 1A）时，应关注封装温升与散热路径，必要时使用散热铜箔或改善散热布局。
- 对于反向电压接近 40V 的工作点，应预留安全裕量，避免长时间在 Vr=40V 下工作以减少漏电增长与可靠性风险。
- 焊接建议采用标准回流焊工艺，最大峰值温度与时间参照制造商推荐规范；避免手工焊接造成热应力损伤。
七、可靠性与注意事项
- 反向漏电随温度显著增加，工作环境温度高时需留意 Ir 上升对系统待机功耗的影响。
- 长期承受重复高浪涌会降低器件寿命，应结合熔断或限流保护电路使用。
- 对 ESD 和过压环节做适当保护，防止瞬态损伤。
总体而言，1N5819WS SL 在小型化、高效率和快速响应方面具有显著优势，适合对空间和能效有较高要求的整流与保护应用。根据具体电流与温度工况，合理设计 PCB 散热与保护措施，可获得稳定可靠的使用表现。
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