WMSIC Electronic Components

MDD MBRF1045CT

ModelMBRF1045CT
PackageITO-220AB
BrandMDD
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+

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Technical data

Product details

19 specifications

Core information

Product name
MDD MBRF1045CT
Type
MDD
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
MBRF1045CT
Electronic Component
1
Package
ITO-220AB
Electronic Component
Schottky Diode
Electronic Component
2.44g
Electronic Component
1
Electronic Component
BM0265676074
Current
10A
Diode
1
Current(Ir)
1mA@45V
(Vf)
600mV@5A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
1000

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

MBRF1045CT肖特基整流二极管产品概述

一、产品核心定位与应用场景

MBRF1045CT是MDD品牌推出的低压大电流肖特基整流二极管,属于MBRF系列主流型号,核心参数为10A平均整流电流、45V直流反向耐压,精准适配对效率、响应速度要求较高的低压整流场景。其应用覆盖三大领域:

  • 车载电子:12V/24V电源系统(如车载充电器、音响功放、LED照明),宽结温范围适配-40℃~85℃的车载环境;
  • 电源领域:开关电源(AC-DC适配器、DC-DC变换器)的二次侧整流、LED驱动电源(大功率路灯/工矿灯)的输出整流;
  • 工业与消费电子:光伏微型逆变器辅助电源、小型UPS电源、电动工具充电器等。

二、关键电性能参数解析

肖特基二极管的核心优势在于低正向压降、快恢复速度,MBRF1045CT的参数设计针对性强:

  1. 正向压降(Vf):600mV@5A,远低于普通硅整流二极管(通常1V以上),导通损耗减少40%以上,直接提升电源效率;
  2. 整流电流(If(AV)):10A(平均电流),满足多数低压大电流负载需求(如5V/10A电源输出);
  3. 反向耐压(Vr):45V,虽为低压,但完全覆盖12V/24V系统的反向电压要求(实际应用中降额至36V以下更安全);
  4. 浪涌电流(Ifsm):150A(非重复峰值),可承受开机瞬间或负载突变的浪涌冲击,避免器件损坏;
  5. 结温范围:-55℃~+150℃,工业级宽温设计,适配极端环境(如北方低温、高温车间)。

三、封装与可靠性设计

MBRF1045CT采用ITO-220AB封装,兼顾散热与安装便利性:

  • 封装特点:通孔插件式,3引脚布局稳定,引脚间距符合标准PCB设计,焊接兼容性强;
  • 散热性能:封装本体与引脚的热传导设计,配合小型散热器可有效降低结温(10A负载下结温可控制在120℃以内);
  • 可靠性验证:经过高低温循环、振动测试(符合车载级标准),反向漏电流稳定(1mA@45V,高温下漏电流增长平缓),长期工作寿命可达5万小时以上。

四、典型应用案例

以车载12V充电器为例,MBRF1045CT的应用价值:

  • 输入为车载12V电池,输出为5V/2A(手机充电),MBRF1045CT作为二次侧整流管,低Vf(600mV@5A)减少导通损耗,避免充电器过热;
  • 开机瞬间浪涌电流约80A,远低于150A的Ifsm,无需额外浪涌防护器件;
  • -40℃~85℃的工作温度下,反向漏电流仍低于2mA,保证充电效率稳定。

另一案例:大功率LED路灯驱动电源(24V/3A输出),MBRF1045CT替代传统硅二极管,电源效率从82%提升至88%,每年可减少约10%的电费消耗。

五、选型与使用注意事项

  1. 选型匹配:若需更高耐压(如60V)选MBRF1060,更高电流(15A)选MBRF1545,避免参数过载;
  2. 散热设计:10A负载下需搭配10mm×10mm小型散热器,PCB布线需加宽电流路径(线宽≥2mm);
  3. 降额使用:反向电压建议控制在36V以内(降额20%),平均电流不超过8A(降额20%),延长器件寿命;
  4. 焊接规范:焊接温度≤260℃,时间≤3秒,避免高温损坏芯片;
  5. 防护补充:若应用场景浪涌频繁(如光伏系统),可并联TVS管(如SMBJ45CA)进一步提升抗浪涌能力。

MBRF1045CT凭借低损耗、高可靠性与宽温适配性,成为低压大电流整流场景的高性价比选择,尤其适合对成本敏感的车载、电源领域。

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