WMSIC Electronic Components

Jingdao Microelectronics B0540WS

ModelB0540WS
PackageSOD-323
BrandElectronic
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic B0540WS
Type
Jingdao Microelectronics
Minimum package
3000

Technical parameters

Electronic Component
Electronic
Electronic Component
B0540WS
Electronic Component
1
Package
SOD-323
Electronic Component
Schottky Diode
Electronic Component
0.028g
Electronic Component
1
Electronic Component
BM0264858925
Current
500mA
Diode
1
Current(Ir)
20uA@40V
(Vf)
620mV@1A
Electronic Component
55℃~+125℃
Electronic Component
3000
Voltage Rating(Vr)
40V
Surge Current (Ifsm)
22A

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

晶导微电子B0540WS肖特基二极管产品概述

一、产品基本信息

晶导微电子推出的B0540WS是一款小功率肖特基势垒二极管,型号命名逻辑清晰:“B”代表肖特基二极管类型,“05”对应额定整流电流(500mA),“40”对应直流反向耐压(40V),封装采用SOD-323(超小型表面贴装封装)。该器件针对低压、小体积、高效率的应用场景设计,是智能终端、物联网设备等领域的常用基础元件。

二、核心电气参数深度解析

B0540WS的参数设计兼顾了效率、可靠性与抗扰性,关键参数意义如下:

  1. 正向压降(Vf):620mV@1A
    肖特基二极管的核心优势是低正向压降,B0540WS在1A导通电流下仅需620mV,远低于普通硅整流二极管(典型值1V以上),可显著降低导通损耗,提升电源转换效率。
  2. 直流反向耐压(Vr):40V
    额定反向耐压40V,满足多数低压系统(如5V/12V)的反向电压防护需求,避免反向漏电流过大导致器件失效。
  3. 额定整流电流(If):500mA
    连续工作电流额定值为500mA,实际使用建议降额至400mA以内,保证长期可靠性。
  4. 反向漏电流(Ir):20uA@40V
    在40V反向电压下,反向漏电流仅20uA,低漏电流特性适合低功耗设计,减少待机状态能量损耗。
  5. 工作结温范围:-55℃~+125℃
    宽温度范围覆盖工业级环境(如户外设备、车载周边),可在极端温度下稳定工作。
  6. 非重复峰值浪涌电流(Ifsm):22A
    单次非重复浪涌电流可达22A,应对电路瞬态过流(如电源上电、负载突变),提升抗干扰能力。

三、封装特性与典型应用场景

  1. 封装特性:SOD-323
    封装尺寸约1.6mm×0.8mm×0.6mm,属于超小型贴片封装,重量轻、占用PCB空间极小,适配高度集成的设备设计。
  2. 典型应用:
    • 低压电源整流:5V小型适配器、USB充电模块的整流桥,低VF提升转换效率;
    • 开关电源续流:DC-DC降压模块(Buck电路)的续流二极管,减少续流损耗;
    • 小型电子终端:智能手环、蓝牙耳机、物联网传感器节点,适配小体积需求;
    • 瞬态保护辅助:配合TVS管使用,应对电路浪涌,保护后端敏感元件。

四、关键性能优势总结

  1. 高效节能:低正向压降减少导通损耗,适合能效敏感场景;
  2. 宽温可靠:-55℃~+125℃结温范围,适应恶劣环境;
  3. 小型集成:SOD-323封装满足设备微型化趋势;
  4. 抗扰性强:22A非重复浪涌电流应对瞬态冲击;
  5. 低功耗待机:20uA反向漏电流降低待机损耗。

五、选型与使用注意事项

  1. 电压匹配:反向工作电压不得超过40V,避免反向击穿;
  2. 电流降额:连续电流建议不超过额定值的80%(400mA),延长寿命;
  3. 散热设计:SOD-323封装散热面积小,需增加PCB铜箔散热焊盘,避免结温超125℃;
  4. 浪涌限制:非重复浪涌为单次脉冲值,多次脉冲需进一步降额;
  5. 焊接规范:贴片焊接温度≤260℃,时间≤10秒,避免热损伤。

B0540WS凭借小体积、高效率、宽温可靠等特点,成为低压小功率应用的高性价比选择,适用于消费电子、物联网、工业控制等多领域。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.