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Hottech SS34L
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Hottech SS34L
- Type
- HOTTECH
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HOTTECH
- Electronic Component
- SS34L
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.04g
- Electronic Component
- 1
- Electronic Component
- BM0226063911
- Current
- 3A
- Diode
- Electronic Component
- Current(Ir)
- 500uA@40V
- (Vf)
- 550mV@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.
SS34L 产品概述
一、产品概述
SS34L 为 Hottech（合科泰）出品的一款独立式肖特基整流二极管，面向中小功率直流整流与保护应用。器件典型正向压降约为 550mV（在 3A 条件下），反向耐压为 40V，连续整流电流为 3A，适合要求低正向损耗、快速恢复特性的场合。封装采用紧凑型 SOD-123FL，便于表面贴装与密集布局。
二、主要参数
- 正向压降（Vf）：≈0.55V @ IF=3A
- 连续整流电流（IF）：3A
- 非重复峰值浪涌电流（Ifsm）：70A（单次脉冲）
- 直流反向耐压（Vr）：40V
- 反向电流（Ir）：≤500µA @ Vr=40V（常温）
- 封装：SOD-123FL（独立式、SMT）
三、封装与热管理
SOD-123FL 封装尺寸小、引脚短，适合自动贴装和回流焊工艺。由于肖特基二极管在高电流工作时会产生较大功耗（Pd≈Vf×IF），建议在 PCB 设计时：
- 增加焊盘铜箔面积以改善散热；
- 在高功率应用中采用多层铜或热过孔引出至大面积散热层；
- 在连续 3A 附近工作时考虑导热与环境温度对额定电流的降额。
四、典型应用场景
- 开关电源的输出整流与二次侧整流；
- DC-DC 转换器、升降压模块的续流与肖特基桥整流；
- 逆向电压保护、反接保护与浪涌抑制；
- USB、汽车电子与通信设备中对体积与效率有要求的电源路径。
五、使用注意事项
- Ifsm 标明为非重复峰值浪涌电流，仅适用于单次或短脉冲（例如半波整流的最大浪涌）；重复脉冲或高频纹波应严格避免；
- 反向电流随温度显著上升，工作在高温或高 Vr 条件下会增大反向泄漏，影响效率与热稳定性；
- 推荐在应用中留有充分的安全裕度（电流、功耗与结温），并遵循合科泰的可靠性与回流焊曲线规范。
六、选型建议
若目标为中等电流（≤3A）、低 Vf 与紧凑 PCB 布局，SS34L 是性价比较高的选择。若系统工作电压或浪涌更高，可考虑耐压或浪涌能力更强的替代型号；若需更低漏电或更宽温度范围，应在数据手册中对比 Ir 与热阻参数进行确认。
总结：SS34L（Hottech/合科泰，SOD-123FL）以低正向压降、较高的瞬态浪涌能力和小体积封装，适用于各类对效率与占板面积敏感的整流与保护场合。请结合实际工作温度、散热条件与电流波形进行工程验证与可靠性评估。
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