WMSIC Electronic Components

Infineon IRF9333TRPBF

ModelIRF9333TRPBF
PackageSO-8
BrandInfineon
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 23+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
Infineon IRF9333TRPBF
Type
INFINEON
Unit
Electronic Component
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
INFINEON
Electronic Component
IRF9333TRPBF
Electronic Component
1
Package
SO-8
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.166g
Electronic Component
1
Electronic Component
BM0228561153
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
2.5W
Electronic Component
Electronic Component
Electronic Component
4000

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

IRF9333TRPBF 产品概述

一、主要特性

IRF9333TRPBF 是一款高性能 P 沟道功率 MOSFET,适用于电源开关与高侧控制应用。该器件在宽温度范围内工作(-55℃ 至 +150℃),具有较低的导通电阻和适中的开关电荷,适合需要在低压(≤30V)电源轨上实现高效开关与保护的场合。封装采用 SO-8,便于表面贴装与大批量生产装配。TRPBF 后缀通常表示卷带供货且为无铅(Pb-free)工艺,便于自动化贴装与环保合规。

二、关键电气参数

  • 漏源电压 (Vdss):30 V(适用于 30V 及以下电源轨)
  • 连续漏极电流 (Id):9.2 A(在适当散热条件下)
  • 导通电阻 RDS(on):32.5 mΩ @ |Vgs| = 4.5 V, Id ≈ 7.5 A(低驱动电压下仍能保持较低损耗)
  • 阈值电压 Vgs(th):|Vgs(th)| ≈ 2.4 V @ 250 µA(注意 P 沟道器件以负 Vgs 驱动)
  • 总栅极电荷 Qg:14 nC @ 10 V(反映开关损耗与驱动要求)
  • 输入电容 Ciss:1.11 nF;输出电容 Coss:230 pF;反向传输电容 Crss:160 pF(影响开关过渡与电压回升)
  • 耗散功率 Pd:2.5 W(SO-8 封装下的参考值,实际散热能力依 PCB 布局与环境而定)

三、封装与热管理

SO-8 表面贴装封装兼顾了体积与散热性能,但 Pd=2.5W 表明器件在无额外散热措施下的功耗承载有限。实际设计中建议:

  • 在 PCB 上使用较大铜箔及过孔散热,多个过孔连接底层散热平面;
  • 对于持续大电流或高占空比工作场合,评估结温并必要时增加散热片或热板;
  • 留意器件在高温和电流条件下的 RDS(on) 上升与功耗增加,进行热仿真与测试验证。

四、典型应用

  • 高侧开关与反向电源控制(30V 及以下电源轨)
  • 电池和电源管理、负载断路与线路选择
  • 汽车与工业电子系统(宽温度范围适应性好),但在用于汽车关键系统前请确认是否满足相应认证要求
  • DC-DC 开关、功率分配与保护电路

五、设计注意事项

  • 驱动电压:作为 P 沟道器件,开通需施加相对于源极的负 Vgs,规格给出的 RDS(on) 在 |Vgs|=4.5V 时测得;在实际电路中需保证驱动器能在目标电源电压下提供足够的栅源电压摆幅。
  • 开关损耗:Qg = 14 nC 与 Ciss/Coss/Crss 值表明在高频切换时驱动损耗与电压应力不容忽视,选择合适的驱动器和缓冲网络有助于降低 EMI 和开关损耗。
  • 体二极管与反向工作:器件内置体二极管,会在反向电压或换相过程中导通;若应用场合有大幅度反向电流或反向能量回馈,需要在电路中加以处理(如并联肖特基、能量回收电路等)。
  • 热设计与功率计算:在设计前应根据工作电流与导通电阻计算导通损耗 P ≈ I^2·RDS(on) 并考虑开关损耗,确保结温在允许范围内。

六、订购与替代建议

  • 标称器件:IRF9333TRPBF,单个 P 沟道 MOSFET,SO-8 封装,通常以卷带(TR)形式供货,适合 SMT 自动化装配。
  • 替代器件选择时,请匹配关键参数:Vdss(≥30V)、RDS(on) 在目标驱动电压下、Qg 与 Ciss/Coss、封装散热能力以及工作温度范围。

总结:IRF9333TRPBF 以其低导通电阻、适中的栅极电荷和宽温度适应性,适合用于 30V 级别的高侧开关与电源管理场合。设计时应重视驱动电压、开关损耗与热管理,结合 PCB 布局与驱动策略以发挥该器件的最佳性能。

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