WMSIC Electronic Components

CJ BZX584C27

ModelBZX584C27
PackageSOD-523
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CJ BZX584C27
Type
CJ
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
BZX584C27
Electronic Component
1
Package
SOD-523
Electronic Component
Zener Diode
Electronic Component
0.011g
Electronic Component
1
(Zzk)
300Ω
(Zzt)
80Ω
Electronic Component
BM0227654049
Diode
1
Current(Ir)
100nA
Power Dissipation(Pd)
150mW
Electronic Component
25.1V~28.9V
Electronic Component
55℃~+150℃

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

BZX584C27 产品概述

BZX584C27 是江苏长电(CJ)提供的独立式稳压二极管(齐纳二极管),标称稳压值为 27V,采用超小型 SOD-523 封装,适用于空间受限、低功耗的基准电压和稳压场合。该器件在低反向漏电流和较稳定的动态阻抗特性下,能提供准确的反向稳压参考,常用于便携设备、通信模块、仪表及一般电子电路的电压钳位与基准源。

一、主要电气参数(概要)

  • 稳压值(标称):27V
  • 稳压值范围:25.1V ~ 28.9V(器件批次与工作点有关)
  • 反向电流 Ir:100 nA(典型/最大级别,具体测试条件见详细资料)
  • 最大耗散功率 Pd:150 mW(器件在规定散热条件下的最大耗散)
  • 动态阻抗 Zzt:80 Ω(稳压区瞬态/小信号阻抗)
  • 膝部阻抗 Zzk:300 Ω(击穿膝部附近阻抗)
  • 工作结温范围:-55 ℃ ~ +150 ℃

说明:在实际设计中应参考完整数据手册获取测试电流、测量条件及典型曲线,以便精确评估稳压点与动态特性。

二、封装与物理特性

  • 封装形式:SOD-523(超小贴片封装)
  • 引脚识别:典型为一侧带阴极标记(标记为线带或点),安装时注意极性(齐纳二极管常在反向工作)
  • 适合于高密度 SMT 板面,适用于空间受限和轻量化应用

三、性能说明与计算参考

  • 额定最大耗散功率 150 mW,对应在标称 27V 稳压点时的最大稳压电流 Iz_max ≈ 150 mW / 27 V ≈ 5.56 mA。超过此电流会使器件过热并可能损坏,因此实际设计中通常采用更低的工作电流来保证长期可靠性。
  • 典型电路为串联限流电阻 Rs 与齐纳并联负载:Rs = (Vin - Vz) / (Iz + Iload)。设计时应保证在最坏工况下(最低 Vin、最大 Iload)仍能维持所需稳压,同时在最高 Vin 下不超过 Iz_max。
  • 低反向漏电(100 nA)使其在微安级电流参考及高阻抗测量电路中表现良好;但考虑到 Zzt 与 Zzk,齐纳在较小电流下稳压点会有一定偏移,须在电路中验证实际电压。

四、典型应用场景

  • 基本电压基准与小电流稳压(如传感器、电平参考)
  • 电压钳位与过压保护(对敏感输入进行限幅)
  • 测试与测量设备中提供稳定参考电压
  • 便携式与低功耗电子产品(受限于耗散功率,适用于小电流应用)

五、使用与设计注意事项

  • 功率与散热:Pd = 150 mW 为在规定环境下的极限值。若工作环境温度升高或 PCB 散热不足,应降低稳态电流并进行功率退载设计。
  • 动态阻抗影响:Zzt = 80 Ω 意味着在稳压区电压随电流变化较明显,对于需要高精度电压参考的场合,应采用较稳定的偏流或加缓冲放大电路。
  • 器件极性与焊接:安装时注意阴极标识,SOD-523 属于小体积封装,焊接应遵循厂商的回流焊推荐曲线以避免过热。
  • ESD 与机械保护:超小封装相对脆弱,搬运与贴装时注意防静电与机械应力。

六、可靠性与环境适应

  • 宽工作结温(-55 ℃ ~ +150 ℃)使其适用于工业级温度范围应用,但高温下电性能(稳压值、漏电、功耗)会变化,应在目标温度下做评估。
  • 对于需要长期稳定性的应用,建议在不同批次与温度下做筛选与老化测试,以确认满足系统要求。

七、订购信息与替代选型

  • 推荐订购型号:BZX584C27(厂商品牌:CJ / 江苏长电)
  • 封装:SOD-523(便于在高密度电路板上使用)
  • 规格后缀(如 Y10)常用于标识包装、出厂批次或检验等级,具体含义请参考供应商数据页或与销售确认。
  • 替代选择:若需更高功率或更低动态阻抗,可考虑功耗更高的 SOD-123/DO-214 等封装及其它系列齐纳/稳压二极管,或采用低温漂的电压参考芯片以提高精度。

总结:BZX584C27 在小封装与低漏电特性下为 27V 级别的低功耗稳压元件,适合空间受限且电流要求较小的基准与限幅应用。设计时重视功率限制、动态阻抗与温度依赖性,按实际工作电流与环境条件选择合适的偏流和散热策略。若需进一步的电气图、测试条件或封装尺寸,请参考 CJ 官方数据手册。

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