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ON 1N5342BRLG
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- ON 1N5342BRLG
- Type
- ON
- Unit
- Electronic Component
- Minimum package
- 4000
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ON
- Electronic Component
- 1N5342BRLG
- Electronic Component
- 1
- Package
- DO-41
- Electronic Component
- Zener Diode
- Electronic Component
- 0.735g
- Electronic Component
- 1
- (Zzk)
- 200Ω
- (Zzt)
- 1Ω
- Electronic Component
- BM0228745421
- Diode
- 1
- Current(Ir)
- [email protected]
- Power Dissipation(Pd)
- 5W
- Electronic Component
- 6.46V~7.14V
- Electronic Component
- 65℃~+200℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1N5342BRLG 产品概述
一、产品简介
1N5342BRLG 是 ON Semiconductor（安森美）生产的独立式稳压二极管，标称稳压值 6.8V（公差 5%，实际范围 6.46V～7.14V），额定耗散功率 5W，常见于 DO‑41 轴向引线封装。该器件适用于需要中等功率稳压与浪涌钳位的场合，结构简单、可靠性高。
二、主要参数与特性
- 稳压值（标称）：6.8V（5%）；实际范围 6.46V～7.14V
- 最大耗散功率 Pd：5W（在适当散热条件下）
- 结温范围 Tj：-65℃ ～ +200℃
- 反向漏电流 Ir：10 μA @ 5.2V（低压时漏流小）
- 阻抗：Zzk（拐点阻抗）≈200 Ω，Zzt（稳态动态阻抗）≈1 Ω
- 封装：DO‑41 轴向，适合通孔焊接与手工装配
三、电性能解读与设计要点
Zzt ≈1 Ω 表示在规定测试电流下该稳压器具有较低的动态阻抗，能提供较稳定的参考电压；而 Zzk≈200 Ω 反映在低电流拐点区电压变化较敏感。理论上最大直流电流 Imax = Pd / Vz ≈ 5W / 6.8V ≈ 0.735A，但这是在理想散热条件下的极限值，实际工作应远低于该值以保证可靠性。设计串联限流电阻时可用公式 R = (Vin - Vz) / Iz，并检查二极管功耗 Pz = Vz × Iz 不超过额定 Pd，且考虑环境温度与散热。
示例：若 Vin=12V，取 Iz=20mA，则 R=(12-6.8)/0.02≈260Ω，二极管功耗约 0.136W，远低于 5W。
四、封装与热管理
DO‑41 为轴向树脂封装，热阻较高，连续大功率工作时需要良好散热：缩短引线、贴装在金属散热面或增加外部散热器可有效降低结温。避免在高温环境下长时间满载工作，否则需按厂家热阻-温升曲线进行功率降额。
五、典型应用与选型建议
适用于基准电压、简单线性稳压、浪涌钳位、信号保护与偏置电路。选型时注意：
- 工作电流范围与实际功耗是否匹配；
- 是否需要更低动态阻抗或更紧的电压公差；
- 封装与安装方式对散热影响。
六、使用与焊接注意事项
- 焊接时避免过热引脚和主体，遵循封装允许的波峰/手工焊接温度与时间；
- 装配时保证良好电气接触并留有散热路径；
- 储存与使用环境避免潮湿与强机械冲击。
总体而言，1N5342BRLG 提供了在通用电子与工业应用中可靠的 6.8V、5W 级稳压解决方案，适合对成本与可用性有要求的稳压与保护场景。
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