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Prisemi PSBD1DF40V3H
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Prisemi PSBD1DF40V3H
- Type
- PRISEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- PRISEMI
- Electronic Component
- PSBD1DF40V3H
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Switch Diode
- Electronic Component
- 0.038g
- Electronic Component
- 1
- Electronic Component
- BM0227760371
- Current
- 3A
- Diode
- 1
- Current(Ir)
- 500uA@40V
- (Vf)
- 550mV@1A
- Electronic Component
- 55℃~+150℃
- 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.
PSBD1DF40V3H 产品概述
一、产品简介
PSBD1DF40V3H 是由 Prisemi（芯导）推出的一款小封装开关二极管，型号定位为 40V、3A 的整流/开关器件。器件采用 SOD-123FL 表面贴装封装，适用于空间受限且对开关速度与耐浪涌能力有要求的电源和信号线路。工作结温范围宽 (-55℃ ~ +150℃)，适配多种工业与消费类应用环境。
二、主要参数
- 型号：PSBD1DF40V3H
- 品牌：Prisemi（芯导）
- 封装：SOD-123FL（表面贴装）
- 直流整流电流：3A
- 反向直流耐压（Vr）：40V
- 正向压降（Vf）：0.55V @ 1A
- 非重复峰值浪涌电流（Ifsm）：80A（一次性浪涌能力）
- 反向漏电流（Ir）：500μA @ 40V
- 工作结温：-55℃ ~ +150℃
三、性能与特点
- 低正向压降：在 1A 条件下 Vf 约为 0.55V，有助于降低导通损耗与发热。
- 良好浪涌能力：80A 的单次峰值浪涌电流能承受启动或冲击负载下的短时冲击电流。
- 宽温度范围：-55℃ 到 +150℃ 的结温范围，适应工业环境与高温工作场景。
- 紧凑封装：SOD-123FL 体积小、重量轻，利于高密度 PCB 布局与自动贴装生产。
- 表面贴装工艺兼容：适用于常用回流焊工艺，便于量产。
四、典型应用
- 开关电源（作为快速整流或续流二极管）
- 直流-直流转换器与电源管理模块
- 反极性保护、背靠背保护电路
- 电机驱动或继电器释放的抑制回路（短时吸收浪涌）
- 消费电子与工业控制的小功率整流与开关电路
五、封装与可靠性
SOD-123FL 提供良好的热传导路径和焊接强度，但由于器件额定电流为 3A，PCB 设计时应注意铜箔面积与散热走线以降低结到外壳温升。器件在高温或大电流长期工作时需按厂商资料对额定电流进行降额处理，以保证长期可靠性。
六、设计与使用注意事项
- 反向漏电流在 40V 时为 500μA，若用于高阻电路或精密检测电路需考虑漏电影响。
- Vf 标定在 1A 条件下，实际在 3A 工作时 Vf 会升高，应在热设计中考虑功耗（P ≈ I·Vf）。
- 如果电路存在频繁大电流冲击，应评估 Ifsm 与实际浪涌能量匹配，必要时并联或选用更高浪涌能力器件。
- 建议遵循厂商的回流焊温度曲线与焊盘设计规范，保证焊点可靠性与热性能。
七、订购信息
- 型号全称：PSBD1DF40V3H
- 品牌：Prisemi（芯导）
- 封装：SOD-123FL
在选型与批量采购前建议向厂家或代理索取最新的产品规格书（Datasheet）与封装图纸，以获取完整的电气特性曲线、最大额定值和焊接建议，从而在具体应用中做到合理设计与可靠验证。
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