WMSIC Electronic Components

CJ B1040W

ModelB1040W
PackageSOD-123
BrandCJ
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 24+

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
CJ B1040W
Type
CJ
Minimum package
3000

Technical parameters

Electronic Component
CJ
Electronic Component
B1040W
Electronic Component
1
Package
SOD-123
Electronic Component
Schottky Diode
Electronic Component
0.034g
Electronic Component
1
Electronic Component
BM0264679924
Current
1A
Diode
Electronic Component
Current(Ir)
50uA@20V
(Vf)
550mV@700mA
Electronic Component
3000
Voltage Rating(Vr)
40V
Surge Current (Ifsm)
5A

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

CJ B1040W肖特基二极管产品概述

B1040W是江苏长电(CJ)推出的一款独立式肖特基整流二极管,针对低电压、小功率电子电路的整流、续流等核心需求设计,凭借低正向压降、紧凑封装及可靠电气性能,成为便携设备、小型电源等领域的常用器件。

一、核心定位与基础属性

作为肖特基型二极管,B1040W区别于普通硅整流二极管的核心优势在于低正向压降和快速开关特性——无需额外复杂电路即可实现高效整流,同时避免硅管的反向恢复时间问题。产品采用独立式封装设计,单管独立工作,无并联管参数一致性风险,适合对电流/电压精度要求较高的场景。

二、关键电气参数解析

B1040W的参数经过针对性优化,适配低压小功率应用,核心指标如下:

1. 正向压降(Vf)

在典型工作电流700mA下,正向压降仅为550mV,远低于普通硅整流二极管(通常1V以上)。低Vf直接降低整流损耗(损耗=Vf×工作电流),例如1A连续电流下损耗仅约0.55W,可有效减少电路发热,提升整体效率。

2. 直流反向耐压(Vr)

额定直流反向耐压为40V,覆盖绝大多数低压电子电路的反向电压需求(如5V、12V电源系统),避免反向电压击穿导致器件损坏,保障电路稳定性。

3. 连续整流电流(If)

额定连续整流电流为1A,适用于小功率电源(如5V/1A适配器)、LED驱动等持续电流场景,无需并联多管即可满足功率要求。

4. 反向漏电流(Ir)

在20V反向电压下,漏电流仅为50μA,远低于行业同类产品平均水平。低漏电流可减少反向导通损耗,同时降低电路误触发风险,提升系统可靠性。

5. 非重复峰值浪涌电流(Ifsm)

可耐受5A非重复峰值浪涌电流(持续时间约10ms),能应对电路启动瞬间、负载突变等产生的瞬间大电流冲击,避免器件过流损坏,延长使用寿命。

三、封装与品牌支持

B1040W采用SOD-123表面贴装封装,尺寸紧凑(典型尺寸约2.0mm×1.2mm×1.0mm),可大幅节省PCB空间,适配便携设备(如蓝牙耳机、智能手环)、小型家电等对体积要求严格的产品。

品牌方面,江苏长电(CJ)是国内知名半导体制造商,拥有成熟的封装测试生产线,产品符合RoHS环保标准,且经过高低温循环、湿度老化等严格可靠性测试,品质稳定可追溯。

四、典型应用场景

B1040W凭借其特性,广泛应用于以下场景:

  1. 低电压电源整流:5V/12V小型适配器、USB充电器的整流电路,利用低Vf提升转换效率;
  2. 小型设备续流保护:玩具电机、小型风扇驱动电路、继电器线圈的续流抑制,借助肖特基快速开关特性减少反向电动势影响;
  3. 便携设备电源管理:充电宝、智能手表的输入/输出电路,满足小体积、低功耗需求;
  4. 低功耗开关电路:LED驱动脉冲调制电路,快速开关特性降低开关损耗。

五、产品优势总结

  1. 高效节能:低正向压降减少整流损耗,提升电路效率;
  2. 小体积适配:SOD-123封装节省PCB空间,适合便携设备;
  3. 可靠稳定:低漏电流+40V耐压+5A浪涌耐受,保障长期稳定;
  4. 品牌保障:长电成熟工艺,品质可靠,供货稳定。

B1040W作为高性价比肖特基二极管,在低压小功率领域竞争力突出,可满足多数常规电子电路的整流、续流需求。

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.