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Hottech BAT20J
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Hottech BAT20J
- Type
- HOTTECH
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HOTTECH
- Electronic Component
- BAT20J
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.029g
- Electronic Component
- 1
- Electronic Component
- BM0264463971
- Current
- 1A
- Diode
- 1
- Current(Ir)
- 12uA@15V
- (Vf)
- 620mV@1A
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage Rating(Vr)
- 23V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BAT20J 产品概述
一、产品简介
BAT20J（品牌：Hottech 合科泰）是一款小型肖特基整流二极管，额定整流电流1A、直流反向耐压约20V（标称23V）。器件为单只独立式封装，采用SOD-323表贴外形，适合高密度贴装与自动焊接工艺，常用于低压快恢复/整流与反向保护场合。
二、主要电气参数
- 类型：肖特基整流二极管（单只）
- 正向压降 Vf：0.62V @ 1A
- 直流反向耐压 Vr：23V（典型类标称20V等级）
- 正向整流电流 If(AV)：1A（连续）
- 反向漏电流 Ir：12 µA @ 15V
- 非重复峰值浪涌电流 Ifsm：5A（短时冲击能力）
- 封装：SOD-323（小型表贴）
三、性能特点
- 低正向压降（0.62V@1A），能有效降低整流损耗和发热。
- 低反向漏电，适合低功耗与待机应用。
- 短时浪涌能力（5A）可承受通电瞬态与启动冲击。
- SOD-323 小封装，适合体积受限、电路密集的消费电子与便携设备。
- 自动贴装和回流焊兼容，适合批量生产。
四、典型应用
- 开关电源或线性电源的低压整流输出。
- 电源反向保护与极性保护电路。
- 电池供电系统的二路供电自动切换（OR-ing）。
- 便携式设备、移动电源、仪表及LED驱动的整流/钳位。
- 小功率整流与浪涌抑制场合。
五、封装与散热建议
SOD-323 为小型表贴封装，热阻相对较大。尽管标称连续整流电流为1A，但实际连续承载能力受PCB散热影响显著。建议：
- 在焊盘处增加铜箔面积或热过孔，以降低结壳温升。
- 高电流设计下考虑并联器件或选用大封装（如SOD-123、DO-214等）。
- 遵循供应商回流焊温度曲线（无铅工艺），避免超时高温导致器件应力。
六、可靠性与使用注意
- 请勿超过额定反向电压与最大正向电流，短时浪涌虽可承受但不能作为常态使用。
- 反向漏电随温度上升而增大，工作环境高温时需注意漏电与额外发热。
- 识别极性：器件通常以带环标识阴极，安装前确认方向。
- 高可靠性场合请参考供应商完整数据手册并进行实际温升与寿命测试。
七、选型建议
BAT20J 适合在低压（≈20V）且要求体积小、低压降和自动贴装的场合使用。若工作电压或电流明显高于其标称值，或对热稳定性/漏电有更严格要求，建议选择更高电压等级或更大功率封装的肖特基器件。
总结：BAT20J（Hottech，SOD-323）是一款面向低压、低损耗、小体积场合的实用肖特基整流二极管，合理的PCB散热与工艺控制可发挥其1A级别的良好性能。
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