WMSIC Electronic Components

Prisemi PSBD521S-40 PSBD521S

ModelPSBD521S-40
PackageSOD-523
BrandPRISEMI
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Prisemi PSBD521S-40
Type
PRISEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PRISEMI
Electronic Component
PSBD521S-40
Electronic Component
1
Package
SOD-523
Electronic Component
Schottky Diode
Electronic Component
0.027g
Electronic Component
1
Electronic Component
BM0265166894
Current
200mA
Diode
1
Current(Ir)
1uA@10V
(Vf)
500mV@200mA
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.

PSBD521S-40肖特基二极管产品概述

一、品牌与封装基础信息

PSBD521S-40由国产半导体厂商Prisemi(芯导科技) 推出,属于肖特基势垒二极管系列。其采用SOD-523(SC-79)小型表面贴装封装,该封装尺寸紧凑(典型值1.6mm×0.8mm×0.6mm),无引脚设计适配自动化贴装工艺,可有效节省PCB板空间,尤其适合对体积有严格要求的便携式设备、小型电子模块等场景。

二、核心电气参数详解

该二极管的关键参数直接决定了应用边界与性能表现,核心参数如下:

  1. 正向压降(Vf):500mV@200mA
    肖特基二极管的核心优势在于低正向压降,相比普通硅二极管(Vf≥0.7V),该参数可显著降低正向导通时的功率损耗,适合低压供电场景(如3.3V/5V系统)。
  2. 直流反向耐压(Vr):40V
    满足大多数低压直流电路的反向耐压需求,可避免反向电压击穿,适配常见低压电源、信号电路。
  3. 连续整流电流(If):200mA
    适用于小功率直流整流、续流等场景,如小型电源模块、电池保护电路。
  4. 反向漏电流(Ir):1uA@10V
    低漏电流特性可减少静态功耗,尤其适合对功耗敏感的低功耗设备(如物联网终端、可穿戴设备)。
  5. 工作结温范围:-55℃+125℃
    宽温度范围覆盖工业级应用(-40℃+85℃)与极端环境(如车载低温启动、高温户外设备)。
  6. 非重复峰值浪涌电流(Ifsm):1A
    可承受瞬间过流冲击(如电源上电瞬间、负载突变),提升电路可靠性。

三、典型应用场景

结合参数特性,PSBD521S-40可覆盖以下常见场景:

  1. 便携式电子设备:智能手环、蓝牙耳机、智能手表的充电电路续流、电池保护二极管——低Vf减少充电损耗,小封装适配紧凑内部布局;
  2. 低压DC-DC转换电路:作为同步整流或续流二极管,用于5V/3.3V等低压电源模块,提升转换效率(相比硅二极管可降低10%~20%功耗);
  3. 通信射频前端:小信号整流、信号钳位,低漏电流避免信号干扰,适配蓝牙、WiFi模块的辅助电路;
  4. 工业控制模块:传感器节点、小型PLC的辅助电源电路,宽温特性适应工业现场的温度波动(如车间高温、户外低温);
  5. 消费类电子:充电器、移动电源的小功率整流电路,满足200mA以内的电流需求,适配快充辅助电路。

四、产品核心优势

  1. 低功耗设计:低Vf与低Ir双特性,可有效降低电路静态与动态功耗,延长便携设备电池续航(实测可提升5%~8%待机时间);
  2. 宽温可靠性:-55℃~+125℃的工作结温,覆盖从低温环境(北方户外设备)到高温环境(车载中控)的应用需求,无需额外温度补偿;
  3. 小型化适配:SOD-523封装体积仅为传统插件二极管的1/10,可实现PCB高密度布局,符合当前电子设备“轻薄化”趋势;
  4. 浪涌耐受:1A非重复浪涌电流,可应对电路中的瞬间过流冲击(如电源插拔、负载短路瞬间),减少器件损坏概率;
  5. 国产替代优势:芯导科技的自主研发产品,可替代进口同规格肖特基二极管(如某品牌SOD-523封装40V/200mA型号),降低供应链成本与风险。

该产品凭借低功耗、宽温、小型化等特性,成为低压小功率电路的优选肖特基二极管,适配从消费电子到工业控制的多领域应用。

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