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FUXINSEMI B340B
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- FUXINSEMI B340B
- Type
- FUXINSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- FUXINSEMI
- Electronic Component
- B340B
- Electronic Component
- 1
- Package
- SMB(DO-214AA)
- Electronic Component
- Schottky Diode
- Electronic Component
- 0.21g
- Electronic Component
- 1
- Electronic Component
- BM0227636315
- Current
- 3A
- Diode
- Electronic Component
- Current(Ir)
- 500uA@40V
- (Vf)
- 500mV@3A
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage Rating(Vr)
- 40V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
B340B 产品概述
一、产品简介
B340B 为独立式肖特基二极管，由 FUXINSEMI（富芯森美）生产，封装为 SMB（DO-214AA）。该器件设计用于中等功率整流与保护场合，具有低正向压降和较强的浪涌承受能力，整流电流额定为 3A，直流反向耐压为 40V。
二、主要电气参数
- 正向压降 (Vf)：约 0.5V @ 3A（典型值，降低功耗、提高效率）
- 非重复峰值浪涌电流 (Ifsm)：100A（短时冲击/浪涌能力）
- 直流反向耐压 (Vr)：40V（最大反向阻断电压）
- 反向电流 (Ir)：500µA @ 40V（中等漏电流水平）
- 连续整流电流：3A
三、主要特性与优势
- 低正向压降：在高电流条件下显著减少导通损耗，适合开关电源与整流应用。
- 优良的浪涌耐受：100A 非重复浪涌能力，有利于承受开机冲击和瞬态过流。
- 封装稳固：SMB 封装适合表面贴装工艺，机械强度与焊接可靠性良好。
四、典型应用场景
- 开关电源（输出整流）
- DC-DC 转换器与斜率补偿
- 反向/极性保护与电源切换
- 充电器、电池管理与电源模块的整流/钳位
五、设计与布局建议
- 额定 3A 为连续整流额定值，实际应用中应根据 PCB 铜箔面积及热路径进行降额设计，保证结温在允许范围内。
- SMB 封装需在焊盘处提供足够铜箔与散热通道，必要时使用多层板过孔加强散热。
- 注意反向漏电：Ir 为 500µA@40V，在对漏电要求严格的系统（如低功耗待机）需评估是否满足要求。
- 遵循厂商推荐的回流焊温度曲线与静电防护规范。
六、选型提示
若应用对极低漏电和更高耐压有更高要求，可考虑漏电更低或耐压更高的替代器件；若需更低 Vf 或更高电流能力，则可选择更高额定电流或并联/更大封装的肖特基管。B340B 在成本、性能与封装间具有良好平衡，适合多数中功率整流与保护场合。
如需更详细的晶体管特性曲线、热阻或封装尺寸图及回流焊工艺参数，可提供数据表以便进一步设计验证。
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