WMSIC Electronic Components

DOWO B360A

ModelB360A
PackageSMA
BrandDOWO
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
DOWO B360A
Type
DOWO
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
B360A
Electronic Component
1
Package
SMA
Electronic Component
Schottky Diode
Electronic Component
0.123g
Electronic Component
1
Electronic Component
BM0264548671
Current
3A
Diode
1
Current(Ir)
100uA@60V
(Vf)
850mV@3A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
5000

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

B360A — 3A/60V 硬包整流二极管(DOWO 东沃,SMA 封装)产品概述

一、产品简介

B360A 是 DOWO(东沃)推出的一款单只独立式整流二极管,采用 SMA 封装,面向中小功率整流与保护场合。器件标称直流整流电流为 3A,直流反向耐压 60V,具有较低正向压降和较强的瞬态浪涌承受能力,适用于消费电子、工业控制、电源与充电类产品中的整流、极性保护与反向阻断等功能。

二、主要电气参数(典型/最大值)

  • 正向压降(Vf):0.85V @ 3A(典型条件下)
  • 直流反向耐压(Vr):60V
  • 正向整流电流:3A(连续)
  • 反向漏电流(Ir):100µA @ 60V
  • 非重复峰值浪涌电流(Ifsm):70A(单次脉冲)
  • 工作结温范围:-55℃ ~ +150℃

以上参数反映了 B360A 在常见工作条件下的主要性能指标:低压降有利于降低整流损耗,较低的反向漏流和高峰值浪涌能力提升了器件在瞬态条件下的可靠性。

三、产品特点与优势

  • 低正向压降:0.85V@3A,降低整流损耗与发热,有利于提高系统效率。
  • 中等电压等级:60V 的反向耐压满足多数 12V/24V 及更高电压的电源系统需求。
  • 较强的浪涌能力:70A 的非重复峰值浪涌电流可抵抗启动、充电或突发短路时的高电流冲击。
  • 宽温度工作范围:-55℃ ~ +150℃,适应工业级环境。
  • SMA 小体积封装:兼顾体积与散热,适合表面贴装生产工艺。

四、典型应用场景

  • 开关电源(二次整流、辅路整流)
  • 电池充电器与适配器(整流与保护)
  • 逆向电压保护、极性保护电路
  • 电机驱动与工业控制模块中的续流或反向吸收
  • 通信与消费电子设备的电源管理

五、热管理与设计建议

  • 功率估算:在 3A 工作电流下,器件功耗约为 P ≈ Vf × I = 0.85V × 3A ≈ 2.55W。此功耗在 SMA 小封装内会导致显著结温上升,因此必须做好 PCB 散热设计。
  • PCB 布局:
    • 在器件两侧引脚区域使用较宽的铜箔和多层铜连接以提升散热路径。
    • 在焊盘下方和周围增加散热铜面积,或通过热通孔将热量引导至内层/底层大铜箔。
  • 工作电流降额:建议在高环境温度或受限散热条件下对连续电流进行适当降额,以保证结温保持在安全范围内。
  • 浪涌保护:虽然 Ifsm 为 70A,但不建议在超过器件数据手册规定的重复脉冲或频繁浪涌条件下长期工作;必要时用熔断器或限流措施保护。

六、封装与可靠性

  • 封装类型:SMA(表面贴装小型二极管封装),便于自动化贴装与回流焊接。
  • 机械与环境:SMA 封装适合标准波峰/回流焊接工艺,工作温度范围达到 -55℃ 至 +150℃,适应较苛刻的工作环境。
  • 注意事项:在焊接与回流时遵循制造商的热曲线与湿度敏感等级(若适用),以避免焊接应力或吸湿导致的封装损伤。

七、选型与使用提示

  • 确认电压裕量:在选择 B360A 时,应保证系统最大反向电压低于 60V,并考虑额外的瞬态浪涌和抑制器件(如 TVS)以防止过压。
  • 散热设计优先:若长期在接近 3A 的电流下工作,应评估 PCB 散热能力并预留安全余量。
  • 替代与并联:若需更高电流,可考虑并联多只二极管,但需采取电流均流措施(小阻值串联或热匹配)以避免单只器件过载;优先选择额定电流更高的单器件以简化设计。

八、规格速览(便捷查阅)

  • 型号:B360A
  • 品牌:DOWO(东沃)
  • 封装:SMA(表贴)
  • 直流整流电流:3A
  • 反向耐压:60V
  • 正向压降:0.85V @ 3A
  • 反向漏电流:100µA @ 60V
  • 峰值浪涌电流:70A(非重复)
  • 工作结温:-55℃ ~ +150℃

如需更详细的电气特性曲线、典型应用电路图或回流焊工艺参数,建议联系供应商索取完整数据手册(Datasheet)及可用的 PCB 参考布局资料,以确保在具体应用中获得最佳性能与可靠性。

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