WMSIC Electronic Components

CJ BZX84C16

ModelBZX84C16
PackageSOT-23
BrandCJ
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CJ BZX84C16
Type
CJ
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
BZX84C16
Electronic Component
1
Package
SOT-23
Electronic Component
Zener Diode
Electronic Component
0.036g
Electronic Component
1
(Zzk)
200Ω
(Zzt)
40Ω
Electronic Component
BM0227649260
Diode
1
Power Dissipation(Pd)
300mW
Electronic Component
15.3V~17.1V
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.

BZX84C16(CJ)产品概述

一、概述

BZX84C16 是江苏长电(CJ/长晶)出品的一款独立式稳压二极管,标称稳压值为 16V,封装为 SOT-23 小尺寸塑封。该器件适用于低功耗、小体积的电压稳压与过压保护场合,可为分立元件或小型模块提供简便的参考/稳压功能。器件在微小空间内提供稳定的反向稳压特性,便于批量生产和自动贴装。

二、主要性能参数

  • 标称稳压:16V(标称值)
  • 稳压范围:15.3V ~ 17.1V(制造公差范围)
  • 阻抗 Zzk:200Ω(在低电流或特定测试点的动态阻抗,反映低电流下的稳压能力)
  • 阻抗 Zzt:40Ω(在额定测试电流下的动态阻抗,表示中高电流区的稳压特性)
  • 反向泄漏电流 Ir:100nA @ 11.2V(低电压条件下的反向电流指标)
  • 最大耗散功率 Pd:300mW(在规定散热条件下的最大耗散能力)
  • 封装:SOT-23(适合表面贴装)

注:Zzk、Zzt 与 Ir 等参数均与测试电流、温度有关,选用时应参考具体数据表中的测试条件。

三、功能与典型应用

  • 参考电压源:为模拟电路或比较器提供稳定的参考电压。
  • 低功耗稳压:在电流不大且功率允许的情况下做简单的线性稳压元件。
  • 过压保护/钳位:用作信号线或电源线上对瞬态过压的限制。
  • 偏置与基准:为晶体管偏置网络或 ADC 前端提供固定基准。
  • 便携与消费类电子、小型模块及传感器接口等场景。

四、封装与热管理注意事项

SOT-23 小封装便于自动贴片,但热阻相对较大,Pd 为 300mW 表示在常温且散热条件良好时的最大耗散能力。实际设计中应注意:

  • 合理估算工作电流与功耗,确保器件在额定耗散下不会过热。
  • 在 PCB 设计中采用较大铜箔或散热通道以降低结到环境的热阻;如长时间工作在接近功率极限,应增加散热区或改用功率更高的封装。
  • 若环境温度上升或器件处于封闭空间,需对 Pd 做降额处理。

五、使用建议与电路实例

  • 常见电路:串联限流电阻 + BZX84C16 作并联稳压;限流电阻值按最大允许电流与所需稳压电流计算。
  • 降低噪声:在稳压点并联小电容(如 10nF~100nF)可改善瞬态响应与抑制噪声。
  • 考虑漏电流:Ir 为 [email protected],若用于高阻输入或待机极低电流场合,应选型时确认漏电容忍度。
  • 动态阻抗影响稳压精度:Zzk 与 Zzt 在不同电流下表现不同,需按实际工作电流区间评估稳压精度与电压偏差。

六、可靠性与选型要点

  • 检验稳压范围是否满足系统允许偏差(15.3V~17.1V),对高精度要求应考虑配对或选择更高精度器件。
  • 留意最大反向电压与瞬态冲击能力,必要时加串联限流或瞬态抑制元件。
  • 在温度、湿度或振动等苛刻环境下,参考厂家可靠性/耐久测试数据,必要时进行针对性评估。

总结:BZX84C16(CJ)以其小体积、较低功耗和稳定的 16V 级稳压特性,适合用于空间受限且功耗要求不高的稳压、参考和保护场合。设计时重点关注功耗与散热、工作电流对稳压精度的影响,以及泄漏电流对低功耗系统的影响,以保证长期可靠运行。

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