WMSIC Electronic Components

LRC S-LMUN5211T1G

ModelS-LMUN5211T1G
PackageSC-70
BrandLRC
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
LRC S-LMUN5211T1G
Type
LRC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
S-LMUN5211T1G
Electronic Component
1
Package
SC-70
Electronic Component
1 NPN
Electronic Component
Digital Transistor
Electronic Component
0.028g
Electronic Component
1
Electronic Component
BM0265024082
Operating Temperature
55℃~+150℃
Resistor
1.2
Resistor
13kΩ
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.

S-LMUN5211T1G 数字三极管产品概述

一、产品核心身份与定位

S-LMUN5211T1G是乐山无线电(LRC)推出的普通双极型NPN数字三极管,属于小型化、低功耗的晶体管类别。其核心定位为低压数字电路的开关/放大元件,适配高密度集成场景,凭借紧凑封装与稳定参数,成为消费电子、工业控制等领域的高性价比选择。

二、关键电气参数深度解析

产品的电气性能围绕“低压开关+稳定放大”设计,核心参数可分为四类:

1. 安全工作边界

  • 集射极击穿电压(Vceo):50V,满足常见低压系统(5V、12V、24V)的电源耐压需求,避免过压损坏;
  • 最大集电极电流(Ic):100mA,可驱动小负载(如LED、微型继电器线圈、小型电机),覆盖多数便携式/小型设备的负载功率范围;
  • 最大耗散功率(Pd):202mW,对应低功耗设计,适合电池供电设备(如可穿戴设备、蓝牙耳机)的能量效率要求。

2. 开关特性参数

作为数字三极管,开关性能是核心:

  • 输入导通电压(VI(on)):3V(基极电流10mA、集射极电压10V时),匹配多数MCU的IO输出电平(3.3V常见),无需额外电平转换;
  • 输入关断电压(VI(off)):500mV(基极电流100μA、集射极电压5V时),低电平关断可靠,避免“半导通”损耗;
  • 输出导通电压(VO(on)):200mV,导通压降极低,减少负载端功率损耗,提升电路效率。

3. 放大与输入特性

  • 直流电流增益(hFE):35(集电极电流10mA、集射极电压10V时),增益稳定,可用于小信号放大(如传感器微弱信号放大)或开关控制的线性区过渡;
  • 固定输入电阻:13kΩ,内置基极电阻简化外围电路,无需额外配置限流电阻,降低设计复杂度与BOM成本。

三、封装与物理特性

产品采用SC-70封装(又称SOT-323),属于超小型表面贴装封装:

  • 尺寸紧凑(约2.9mm×2.0mm×1.1mm),适配智能手机、可穿戴设备等对空间要求严苛的产品;
  • 表面贴装工艺兼容自动化生产线,提高批量生产效率,降低人工成本;
  • 引脚布局合理,焊接可靠性高,适合长期使用场景。

四、工作环境适应性

  • 温度范围:-55℃+150℃,覆盖工业级(-40℃+85℃)与部分汽车级(-55℃~+125℃)的温度需求,可在极端环境(如户外传感器、车载电子)下稳定工作;
  • 耐温性能满足高温焊接(回流焊、波峰焊)要求,生产过程中无需特殊防护。

五、典型应用场景

  1. 便携式电子设备:智能手机电源管理模块、蓝牙耳机状态指示电路、智能手环传感器接口;
  2. 低压数字开关:控制LED指示灯、小型继电器、微型电机(如玩具、智能家居节点);
  3. 信号放大与缓冲:传感器微弱信号放大(如温度、压力传感器)、前后级电路缓冲(避免负载效应);
  4. 工业控制子电路:小型PLC的IO驱动、传感器接口电路、低功耗工业监测设备。

总结

S-LMUN5211T1G凭借小型化封装、稳定的开关/放大性能、宽温适应性,成为低压数字电路、便携式设备、工业控制领域的高性价比数字三极管。LRC的品牌保障进一步提升了其可靠性,适合对成本、空间、功耗有严格要求的设计场景。

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