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Hottech SS34A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Hottech SS34A
- Type
- HOTTECH
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HOTTECH
- Electronic Component
- SS34A
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.098g
- Electronic Component
- 1
- Electronic Component
- BM0226971464
- Current
- 3A
- Diode
- Electronic Component
- Current(Ir)
- 500uA@40V
- (Vf)
- 500mV@3A
- Electronic Component
- Electronic Component
- Electronic Component
- 2000
- 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.
SS34A 产品概述
一、产品简介
SS34A 是 Hottech（合科泰）提供的一款独立式肖特基整流二极管，封装为 SMA (DO-214AC)。器件面向需要低正向压降、高整流能力和抗浪涌能力的电源与保护应用，具有响应快、损耗低的特点，适合开关电源、充电设备、逆变器及整流网络中的整流或反向保护。
二、主要电气参数
- 型号：SS34A（Hottech / 合科泰）
- 二极管配置：独立式
- 正向压降 Vf：0.5 V (500 mV) @ 3 A
- 直流整流电流：3 A
- 非重复峰值浪涌电流 Ifsm：80 A
- 直流反向耐压 Vr：40 V
- 反向电流 Ir：500 μA @ 40 V
- 封装：SMA (DO-214AC)
三、特性与优势
- 低正向压降（0.5 V @ 3 A）：在中等电流下降低整流损耗，提升系统效率并减少发热。
- 高浪涌能力（Ifsm 80 A）：能够承受开机或短路情况下的瞬态冲击电流，可靠性高。
- 中等电压等级（40 V）：适合多数USB、电源轨与车载电子等低压场合。
- 封装紧凑、焊接方便：SMA 封装兼顾散热与占板面积，适合集成在紧凑电路板上。
四、典型应用场景
- 开关电源（SMPS）整流与续流路径
- USB、电源适配器与充电器整流
- 反向电流保护与反接保护电路
- 汽车电子中低压整流（需考虑工作温度与浪涌条件）
- 电池管理系统（整流/保护用途）
五、封装与热管理建议
- 封装：SMA (DO-214AC)，适合表面贴装工艺。器件热阻受PCB散热面积与铜箔面积影响较大。
- 热管理：在3 A 连续工作时，耗散功率约为 P ≈ Vf × I（示例：0.5 V × 3 A = 1.5 W），建议在PCB上配备较大散热铜箔（热沉）并使用多焊盘过孔以降低结温。
- 焊接：支持常规无铅回流焊工艺，遵循制造商推荐的回流温度曲线与预热/冷却速率以避免封装应力。
六、选型与使用注意事项
- 反向漏流：在高温或高反向电压下 Ir 可上升，若应用在高温环境或需极低反向漏电流，应评估温度影响或选择更低漏电的型号。
- 浪涌与反复冲击：Ifsm 为非重复峰值浪涌能力，多次重复浪涌或频繁大电流冲击会降低器件寿命，应在电路设计中控制浪涌或加保护元件（限流、热熔丝等）。
- 电压裕量：40 V 最大反向耐压适合多数低压系统，若存在更高瞬态或浪涌电压需增加抑制元件或选更高耐压型号。
- 封装与焊盘：参考 SMA 标准封装尺寸设计焊盘，保证焊点可靠并优化热传导。
总结：SS34A（Hottech 合科泰，SMA 封装）是一款适用于需低压降、高整流电流与良好浪涌承受能力的肖特基二极管，适合各种开关电源、整流与保护场合。设计时应注意散热与反向漏流对系统性能的影响。若需元件数据手册（详细极限值、温度曲线与封装尺寸），建议索取厂家规格书以完成最终设计验证。
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