WMSIC Electronic Components

PANJIT PJA3439_R1_00001

ModelPJA3439_R1_00001
PackageSOT-23
BrandPANJIT
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
PANJIT PJA3439_R1_00001
Type
PANJIT
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
PJA3439_R1_00001
Electronic Component
1
Package
SOT-23
Electronic Component
1 P
Electronic Component
MOSFET
Electronic Component
0.028g
Electronic Component
1
Electronic Component
BM0259717228
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
500mW
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
60V
Capacitor(Ciss)
51pF

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

PJA3439_R1_00001 产品概述

一、概述

PJA3439_R1_00001 是强茂(PANJIT)推出的一款 P 沟道场效应晶体管(P‑MOSFET),采用 SOT‑23 小封装,面向便携式电源管理和小功率高侧开关场合。器件额定漏‑源电压为 60V,连续漏极电流可达 300mA,耐压能力和电流容量适合中低功率开关与保护电路使用。器件在小体积封装下提供较低的栅极电荷与输入电容,利于提升开关效率并简化驱动电路设计。

二、主要参数

  • 类型:P 沟道 MOSFET(P‑channel)
  • 漏‑源电压 Vdss:60V
  • 连续漏极电流 Id:300mA
  • 导通电阻 RDS(on):4Ω (在 |Vgs|=10V 条件下测得)
  • 最大耗散功率 Pd:500mW(SOT‑23 封装)
  • 阈值电压 Vgs(th):|Vgs(th)| ≈ 2.5V(P 溝道对应 Vgs ≈ −2.5V)
  • 总栅极电荷 Qg:1.1nC(在 4.5V 驱动电压下测得)
  • 输入电容 Ciss:51pF
  • 工作温度范围:−55℃ ~ +150℃
  • 封装:SOT‑23
  • 品牌:PANJIT(强茂)

注:对于 P 沟道器件,所有与栅源电压相关的数值以极性绝对值表示;实际驱动时需给予源极更高电位,栅极相对源极施加负电压以打开器件。

三、特性与优势

  • 低驱动能量:Qg 仅 1.1nC,Ciss 51pF,栅极惯量小,适合低能耗、频率不高的开关场合,驱动器要求低。
  • 中等耐压能力:60V 的 Vdss 使其适用于车载周边、12V/24V 系统的高侧开关和反向保护。
  • 小封装、易集成:SOT‑23 体积小,适合空间受限的便携或模块化设计。
  • 适合做高侧开关与保护:P 沟道器件便于用简单电平驱动实现高侧开关功能,无需升压门驱。

四、热设计与功耗评估

SOT‑23 的额定耗散功率为 500mW,但实际可用功率受 PCB 散热、焊盘面积与环境温度影响较大。举例:在 RDS(on)=4Ω 且 Id=300mA 的条件下,导通损耗约为 Pd ≈ I^2·R = 0.3^2×4 = 0.36W,接近器件最大耗散,长期工作需注意热量管理和降额使用。建议:

  • 在布局时增大铜箔散热面积并使用散热过孔;
  • 在高电流应用中考虑并联或换用更低 RDS(on) 的器件;
  • 查阅完整数据手册以获得准确的热阻 θJA/θJC 值并据此计算结温。

五、典型应用场景

  • 便携式设备的电源高侧开关与电池断路保护;
  • 逆向电源保护与电池隔离电路(反接保护);
  • 小功率 DC‑DC 方案中的同步或补偿开关(低频);
  • 音频设备、传感器电源管理与系统待机电源控制;
  • 需要节省 PCB 空间和简化高侧驱动的嵌入式产品。

六、使用注意事项

  • 驱动极性:P‑MOSFET 的导通依赖于 Vgs 为负(相对于源极),设计驱动电平时须保证栅极能被下拉至足够低于源极以满足导通所需的 |Vgs|。
  • 功率与温升:在接近额定电流或较高频率切换场景下,注意器件结温上升与功耗限制,必要时采用降额或外部散热。
  • ESD 与可靠性:SOT‑23 器件对静电敏感,装配与测试时做好防静电措施;焊接时遵循厂家回流温度曲线以避免损伤。
  • 数据手册参考:上面参数为常用规格摘要,设计时请以强茂官方数据手册和器件曲线为准,特别是 Id 与 Pd 的温度依赖、开关特性与安全工作区(SOA)。

七、封装与订购信息

  • 单位包装:SOT‑23 单件或卷带卷装(具体包装形式请按供应商目录或销售单确认)。
  • 型号:PJA3439_R1_00001,品牌 PANJIT(强茂)。 如需样片测试或量产采购,请与经销商或强茂官方渠道联系,获取完整数据手册、器件曲线与可靠性报告。

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