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LRC LMUN5213T1G
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LRC LMUN5213T1G
- Type
- LRC
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LRC
- Electronic Component
- LMUN5213T1G
- Electronic Component
- 1
- Package
- SC-70
- Electronic Component
- 1 NPN
- Electronic Component
- Digital Transistor
- Electronic Component
- 0.028g
- Electronic Component
- 1
- Electronic Component
- BM0228586588
- Operating Temperature
- 55℃~+150℃
- Resistor
- 1
- Resistor
- 47kΩ
- Transistor Type
- NPN
- Power Dissipation(Pd)
- 202mW
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LMUN5213T1G 产品概述
一、产品概况
LMUN5213T1G 是 LRC（乐山无线电）推出的一款预偏置数字 NPN 晶体管，封装为 SC-70，适合用于逻辑侧直接驱动小电流负载和作为开关缓冲器。该器件设计用于简单、可靠的低功耗开关场景，减少外部元件数量，便于快速原型与空间受限的设计。
二、主要特性
- 晶体管类型：NPN（预偏置，数字晶体管）
- 集射极击穿电压 Vceo：50 V
- 最大集电极电流 Ic：100 mA
- 直流电流增益 hFE：约 80（条件：Ic=10 mA，Vce=10 V）
- 输入电阻（内部预置）：47 kΩ
- 电阻比率：1（厂家标注）
- 功耗耗散 Pd：202 mW（封装/环境相关）
- 工作温度范围：-55 ℃ ~ +150 ℃
- 封装：SC-70（小型表面贴装）
- 单件数量：1
三、典型性能与使用建议
- 由于内部有 47 kΩ 的输入电阻，LMUN5213T1G 可以直接由逻辑电平（如 3.3 V / 5 V）驱动而无需外部基极限流电阻。以 5 V 输入为例，基极电流约为 (5−0.7)/47k ≈ 0.09 mA，按 hFE≈80，对应工作电流可达 ≈7 mA（线性区估算）。
- 若希望在饱和区工作以实现低 VCE(sat)，需要更大的基极电流；但预偏置电阻值较大，内置驱动能力有限，适合驱动数 mA 级负载（如 LED、小电流继电器驱动前级、逻辑级开关等），不建议直接驱动高电流负载或功率器件。
- 功耗限制：器件最大耗散约 202 mW。工作时需保证 VCE×Ic ≤ Pd，在中高电压或高电流条件下注意热量管理。举例：若 Ic=20 mA，则允许的 VCE 平均值约为 10 V（理论上），实际应留裕量并考虑脉冲与散热条件。
四、典型应用场景
- 微控制器 IO 口的电平缓冲和反向驱动
- 低电流 LED 驱动（配合限流电阻）
- 开关小信号继电器或光耦前端驱动
- 信号接口保护与简单的逻辑转换
- 空间受限的便携式电子设备与传感器节点
五、封装与管脚说明
- 封装形式：SC-70，适用于自动化贴装与小型化 PCB 设计。
- 精确管脚排列（基极/集电极/发射极）建议参照 LRC 官方数据手册或样片测试确认，以免接反影响性能和可靠性。
六、选型与注意事项
- 若应用需要持续几十毫安以上的驱动电流或较高的功率耗散，请选用大功率封装或外加驱动器。
- 对于需要保证饱和导通（低 VCEsat）的场合，注意预偏置电阻限制基极电流，可能需要外加更小的基极电阻或使用驱动级。
- 在高温、高电压或长时间工作状态下，应评估热工况并预留安全裕量，避免功耗超过 Pd。
- 建议在设计前查阅厂家完整数据手册，确认极限参数、典型特性曲线和焊接/回流工艺要求。
如需我为您的具体电路（例如由 3.3 V MCU 驱动某型号 LED 或继电器）计算实际可驱动电流与安全余量，我可根据工作电压与占空比给出更精确的建议。
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