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LGE BC337-40 BC337
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LGE BC337-40
- Type
- LGE
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LGE
- Electronic Component
- BC337-40
- Electronic Component
- 1
- Package
- TO-92-3
- Electronic Component
- 1 NPN
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.214g
- Electronic Component
- 1
- Electronic Component
- BM0226469322
- Transistor Type
- NPN
- Frequency(f T)
- 210MHz
- Power Dissipation(Pd)
- 625mW
- Electronic Component
- Electronic Component
- Electronic Component
- 1000
- Collector Current(Ic)
- 800mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BC337-40 产品概述
一、概述
BC337-40 为一款通用 NPN 晶体管，适用于小功率开关和信号放大场合。该器件在 TO-92-3 封装下提供较高的集电极电流能力和中等电压耐受性，具有良好的增益和频率特性，便于在小型电路板上实现驱动与放大功能。品牌为 LGE（鲁光），适合通用电子与工控类量产应用。
二、典型电气参数
- 晶体管类型：NPN
- 直流电流增益 hFE：250（测试条件 100mA, VCE=1V）
- 集电极电流 Ic（最大）：800mA
- 集电极—射极击穿电压 VCEO：45V
- 集电极截止电流 Icbo：100nA（室温典型）
- 特征频率 fT：210MHz
- 功率耗散 Pd（封装限制）：625mW
- 发射极—基极击穿电压 VEbo：5V
- 集射极饱和电压 VCE(sat)：约700mV（饱和导通时典型值）
- 封装：TO-92-3
以上参数为典型或标称值，设计时应参考厂商完整数据手册以确定极限与测试条件。
三、典型应用
- 小电流继电器、继电器驱动与指示灯驱动
- 前置放大器与中低频音频信号放大
- 逻辑级开关与接口缓冲（需注意饱和压降和开关损耗）
- 电流源、基准电路中作为旁路或开关元件
四、设计与使用要点
- 功耗管理：Pd=625mW 为封装极限，实际使用应考虑安全裕量并避免长时间接近极限。若工作电流或 VCE 较高，应采用限流、降低占空比或更换功耗更高的封装。
- 饱和与驱动：在开关闭合时 VCE(sat)≈700mV，驱动较低电压负载时需考虑饱和电压引起的功耗和电压降。
- 增益依赖：hFE 随 Ic 与温度变化，设计偏置与反馈时应留有余地，必要时在电路中加入负反馈或使用恒流源以稳定工作点。
- 热稳定性：高电流工作时结温上升会影响 Icbo 与 hFE，应确保散热或降低平均功率。
- 引脚与封装：常见 TO-92 平面面向观察时引脚排列多为 C–B–E，但不同厂商可能有差异，最终设计请以出货样品或数据手册为准。
五、封装与采购建议
BC337-40 常见于 TO-92-3 工业封装，适合通孔组装与手工焊接。购买时建议向 LGE（鲁光）索取完整数据手册、尺寸图和可靠性报告，结合批量测试确认 hFE 分布与饱和特性以满足生产需求。
总结：BC337-40 在中低功率、小尺寸应用中提供了良好的电流能力与频率响应，是通用驱动与放大场合的实用选择。合理的热管理与偏置设计能有效发挥其性能并延长使用寿命。
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