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Hottech 1N5817WS
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Hottech 1N5817WS
- Type
- HOTTECH
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HOTTECH
- Electronic Component
- 1N5817WS
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.03g
- Electronic Component
- 1
- Electronic Component
- BM0226971459
- Current
- 1A
- Diode
- Electronic Component
- (Vf)
- 750mV@3A
- Electronic Component
- 55℃~+125℃
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage Rating(Vr)
- 20V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1N5817WS 产品概述
一、产品简介
1N5817WS 为 Hottech（合科泰）生产的肖特基势垒二极管，封装为 SOD-323，额定反向耐压 20V、整流电流 1A。肖特基二极管以低正向压降和极快的开关速度著称，适合用于低压高速整流、反向保护与电源路径选择等场合。本型号体积小、适配面板贴装，适用于便携式设备与开关电源的输出整流或保护电路。
二、主要技术参数（基于提供数据）
- 二极管类型：独立式，肖特基
- 额定反向耐压 (Vr)：20 V
- 连续整流电流：1 A
- 非重复峰值浪涌电流 (Ifsm)：9 A（短时脉冲）
- 正向压降 (Vf)：0.75 V @ 3.0 A（此值用于参考浪涌条件）
- 工作结温范围：-55 ℃ ～ +125 ℃
- 封装：SOD-323
备注：提供数据中“反向电流 (Ir): 9A”很可能为笔误或字段错置，实际反向漏电流通常为 μA 到 mA 级，建议以厂方完整 datasheet 为准。
三、电气与热特性要点
肖特基二极管的正向压降随电流和温度变化明显。日常工作在 1A 连续时，Vf 通常低于在大浪涌电流下测得的 0.75V；实际压降应参考厂方在不同电流点的典型曲线。器件功耗可用 P = Vf × I 估算，配合 PCB 导热设计（铜箔面积、过孔）以保证结温在允许范围内。Ifsm 表示短时间半波浪涌能力（通常按 8.3ms 半波定义），不宜作为连续使用指标。
四、典型应用
- 低压整流（开关电源输出整流）
- 反向极性保护和电源路径切换（功率路由）
- 输入/输出保护与钳位电路
- 电池供电设备的高效率整流与保护
五、封装与安装建议
SOD-323 为小型贴片封装，焊接时注意回流温度曲线与焊盘设计。为降低结温，应在焊盘下方和附近增加铜箔面积，并考虑热沉或通孔连接多层电源层。存放与贴装过程中注意防潮、防静电处理。
六、选型与可靠性建议
- 若工作电压或反向电压可能超过 20V，应选取耐压更高的型号。
- 对高温环境下反向漏电敏感的设计，应关注 Ir 随温度上升的特性。
- 对长时大电流或散热受限场合，考虑更大封装或并联设计（并联需注意电流均分）。
- 最终选型以厂方完整 datasheet、典型曲线及可靠性资料为准。
结语：1N5817WS（Hottech，SOD-323）适合低压、高效率的整流与保护用途；在使用前请核对厂方完整规格表和封装尺寸，并根据实际热设计与浪涌条件进行必要的降额与验证。如需我帮助查找 datasheet 或推荐 PCB 焊盘模型，可提供进一步支持。
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