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Prisemi PSBD3D40V1H
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Prisemi PSBD3D40V1H
- Type
- PRISEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- PRISEMI
- Electronic Component
- PSBD3D40V1H
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.03g
- Electronic Component
- 1
- Electronic Component
- BM0227234105
- Current
- 1A
- Diode
- 1
- Current(Ir)
- 100uA@40V
- (Vf)
- 500mV@1A
- Electronic Component
- 55℃~+125℃
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PSBD3D40V1H — Prisemi(芯导) 肖特基二极管产品概述
一 产品简介
PSBD3D40V1H 为 Prisemi（芯导）出品的低压肖特基整流二极管，单管可实现连续整流电流 1A，适用于中低功率、高效率电源设计与保护电路。器件采用 SOD-323 小型封装，适合空间受限且需要低正向压降的表面贴装应用。
二 主要电气参数
- 正向压降 Vf：500mV @ 1A（低压降特性有助于减少整流损耗）
- 直流反向耐压 Vr：40V，适合 12V、24V 系统的整流与保护
- 反向电流 Ir：100μA @ 40V（高温下漏电需关注）
- 非重复峰值浪涌电流 Ifsm：25A（一次性或短时冲击能力，需按波形与时间限制使用）
- 连续整流电流：1A
- 工作结温范围：-55℃ 至 +125℃
三 关键特性与优势
- 肖特基结构带来低正向压降与极快开关速度，显著降低导通损耗与开关损耗。
- SOD-323 小封装适配高密度贴装，焊接性良好，适合自动化贴装流程。
- 宽工作结温范围满足工业级环境需求。
四 应用场景
- 开关电源整流与二次侧整流
- DC-DC 转换器输出整流与同步整流替代件
- 反向极性/防反接保护、续流二极管（freewheeling）
- 电池充电/管理、车载电子（需注意温度与漏电）
- 通信、电源管理模块等小功率、高效率场合
五 设计与使用注意事项
- 虽然 Ifsm 达 25A，但该为非重复峰值，应避免反复大幅冲击；设计时按实际冲击波形（如 8/20μs、10ms）核算并加保护。
- 反向漏流 100μA 在高温或高 Vr 下会增加，应在热设计和待机能耗预算中考虑。
- SOD-323 封装散热能力有限，连续 1A 工作时要做好 PCB 铜箔散热与热过渡设计，必要时并联或选用更大封装。
- 推荐遵循厂商的回流焊工艺规范进行焊接，避免过热导致封装应力或性能退化。
六 选型建议与替代方案
- 若系统电压或反向耐压要求高于 40V，应选用更高 Vr 的肖特基或标准整流二极管。
- 对于低温漂、超低漏电场合，可考虑低漏电设计的型号；需在数据表中比对 Vf、Ir 与 Ifsm 及热阻参数。
- 在需更高持续电流或更好散热时，优先选择功率封装（SOD-123、SOD-128 或 SMA）或使用多颗并联并合理匹配。
如需器件真实数据表（datasheet）、封装图或在特定电路中的仿真建议，我可为您提供下一步支持或比较替代器件清单。
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