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LGE BZV55C18
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LGE BZV55C18
- Type
- LGE
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LGE
- Electronic Component
- BZV55C18
- Electronic Component
- 1
- Package
- SOD-80
- Electronic Component
- Zener Diode
- Electronic Component
- 0.046g
- Electronic Component
- 1
- (Zzk)
- 170Ω
- (Zzt)
- 50Ω
- Electronic Component
- BM0257672022
- Diode
- 1
- Current(Ir)
- 100nA@13V
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- 16.8V~19.1V
- 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.
BZV55C18 稳压二极管产品概述
一、产品概述
BZV55C18 是鲁光（LGE）出品的一款独立式稳压二极管，标称稳压值为 18V，实际稳压范围为 16.8V～19.1V，适用于作为小功率电压基准与过压钳位元件。器件采用 LL-34 封装（文档中亦标注 SOD-80 形式），体积小、抗振动性能好，适合空间受限与批量贴装的场合。
二、主要电气参数
- 标称稳压值：18V（范围 16.8V～19.1V）
- 反向漏电流：100nA @ 13V（极低漏电，有利于高阻抗电路）
- 耗散功率：Pd = 500mW（注意散热限制）
- 阻抗：Zzt = 50Ω；Zzk = 170Ω（分别对应测试工作点和拐点附近的动态阻抗）
- 工作结温范围：-65℃ ～ +200℃
- 配置：独立式（单个稳压二极管）
三、特点与应用价值
- 低漏电：100nA@13V 的低反向电流，适合对偏置电流敏感的模拟电路与传感器前端。
- 低至中等功耗：500mW 的耗散能力适合做本地基准或小电流钳位，便于替代复杂稳压器实现简单的稳压/基准功能。
- 良好的动态特性：Zzt=50Ω 在工作电流点提供较好的电压稳定性，适合对噪声和电压摆幅有一定要求的场合。
- 宽温度范围：-65℃～+200℃ 的结温等级说明器件在高温和工业环境下具有较好可靠性。
四、典型应用场景
- 小功率基准电路、偏置电源和参考电压；
- 输入浪涌或反向电压的保护/钳位；
- 仪表、传感器前端、通信终端及电池管理中的简单稳压单元；
- 工业控制和航空航天等需耐高温环境的电子模块（在满足热管理要求下）。
五、选型与使用要点
- 最大稳压电流估算：在理想散热条件下 Iz_max ≈ Pd / Vz ≈ 0.5W / 18V ≈ 27.7mA。实际应用中建议留有余量，并考虑环境温度与封装散热，典型工作电流常选 1–10mA 区间。
- 串联限流电阻计算示例：若 Vin=24V，期望 Iz=10mA，则 R=(24−18)/10mA=600Ω；同时要检验二极管耗散功率与限流电阻的功耗。
- 温度与功耗管理：高结温能力强，但长期在接近 Pd 条件下工作会缩短寿命，应通过 PCB 散热铜箔、热 vias 或降低工作电流来改善热环境。
- 漏电与精度：若用于精密基准，应注意在不同电压点与温度下的漏电与阻抗变化对稳压值的影响，必要时配合缓冲放大器或稳压/温补电路使用。
六、包装与订购信息
品牌：LGE（鲁光）；封装：LL-34（文中标注 SOD-80 可作贴片替代版本）。在选购时请确认封装与出货形式，并参考厂家完整器件数据手册以获得详细的 I–V 曲线、热阻与封装尺寸信息。
总结：BZV55C18 对于需要 18V 小功率稳压、低漏电和高温适应性的应用，是一种经济且可靠的选择，但使用时需重视功耗计算与散热设计以保证长期稳定运行。
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