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BLUE ROCKET IRF740
Configuration
1 options
Configuration
Electronic Component
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BLUE ROCKET IRF740
- Type
- BLUE ROCKET
- Minimum package
- 50 管
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BLUE ROCKET
- Electronic Component
- IRF740
- Electronic Component
- 1
- Package
- TO-220
- Electronic Component
- 1 N
- Type
- N
- Electronic Component
- MOSFET
- Electronic Component
- 2.74g
- Electronic Component
- 1
- Electronic Component
- BM0225825298
- Operating Temperature
- 55℃~+150℃
- Power Dissipation(Pd)
- 134W
- Electronic Component
- Electronic Component
- Electronic Component
- 50
- Voltage(Vdss)
- 400V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
IRF740（BLUE ROCKET）产品概述
一、产品简介
BLUE ROCKET 牌 IRF740 为单只 N 沟道绝缘栅场效应管（MOSFET），采用常见的 TO-220 封装，适用于中高压开关与放大场合。器件耐压达 400V，额定连续漏极电流 10A，耗散功率高达 134W（在良好散热条件下），兼顾耐压与功率处理能力，适合开关电源、逆变器、灯控与电机驱动等应用。
二、主要技术参数
- 类型：N 沟道 MOSFET
- 封装：TO-220（单片，数量：1）
- 漏-源耐压 Vdss：400V
- 连续漏极电流 Id：10A
- 导通电阻 RDS(on)：550 mΩ @ Vgs = 10V
- 阈值电压 Vgs(th)：4.0V @ Id = 250 μA
- 耗散功率 Pd：134W（需良好散热）
- 栅-源极限电压 VgSS：±30V
- 输入电容 Ciss：2.04 nF
- 输出电容 Coss：195 pF
- 反向传输电容 Crss（Crss/Crss）：20 pF
- 品牌：BLUE ROCKET
三、特性与优势
- 耐高压：400V 的 Vdss 能应对大多数中高压电源与逆变场合的电压应力。
- 容量与切换特性均衡：Ciss 与 Coss 提供合理的驱动与开关性能，便于在中频率下取得平衡的开关损耗与速度。
- TO-220 封装：便于手工焊接、安装散热片和更换维护，适合实验和中小批量应用。
- 工业温度范围：工作温度覆盖 -55℃ 到 +150℃，满足工业级环境要求。
四、典型应用场景
- 开关电源（SMPS）高压侧开关
- 单相/三相逆变器与变频器的中高压级
- 功率放大器和电子镇流器
- 电机驱动、灯控与稳压模块
- 通用功率开关与保护电路
五、封装与热管理建议
TO-220 封装便于安装大尺寸散热片。器件标称 Pd 为 134W，但该值依赖于良好的热阻和环境条件。建议：
- 在高功率工作点使用合适散热片并填充导热硅脂；
- 设计时参考器件的热阻和实际结-壳、壳-散热片热阻，确保结温在安全范围内；
- 在频繁开关或高频应用中，关注开关损耗与热循环，必要时并联或采用更低 RDS(on) 的器件。
六、使用建议与注意事项
- 栅极电压不得超过 ±30V，避免静电或过压损坏；
- 实际导通电阻受结温影响，升温会增加 RDS(on)，需留足裕量；
- 注意 Coss/Crss 带来的缓冲与回灌影响，在高 dv/dt 场景下可能产生误触发或需加 RC 阻尼；
- 工作电压应低于 Vdss，并考虑系统中的过压瞬态（建议配合 TVS 或钳位保护）；
- 在并联使用时应做好源端电流均流和栅极驱动一致性设计。
如需完整的电气特性曲线（漏极特性、开关波形、热阻数据）或封装机械图纸，我可帮您获取或整理成便于设计参考的资料。
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