WMSIC Electronic Components

YONGYUTAI BZV55C12

ModelBZV55C12
PackageLL-34
BrandYONGYUTAI
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
YONGYUTAI BZV55C12
Type
YONGYUTAI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YONGYUTAI
Electronic Component
BZV55C12
Electronic Component
1
Package
LL-34
Electronic Component
Zener Diode
Electronic Component
0.046g
Electronic Component
1
(Zzk)
90Ω
(Zzt)
20Ω
Electronic Component
BM0226337743
Diode
1
Power Dissipation(Pd)
500mW
Electronic Component
11.4V~12.7V
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.

BZV55C12 型号产品概述

一、产品概述

BZV55C12 为独立式稳压二极管(Zener diode),标称稳压值 12V,实际稳压范围 11.4V ~ 12.7V,额定耗散功率 500mW,封装为 LL-34(细径玻璃轴向封装)。该器件适用于低功耗稳压、基准与钳位电路,尤适合空间受限或对成本敏感的通用电子设计。

二、主要电气参数

  • 稳压值(标称):12V
  • 稳压范围:11.4V ~ 12.7V(典型公差,实际以厂方 Datasheet 为准)
  • 最大耗散功率 Pd:500 mW(在规范环境与良好散热条件下)
  • 阻抗 Zzk:90 Ω(表征临界/低电流区的动态阻抗)
  • 阻抗 Zzt:20 Ω(表征在测试电流点的动态阻抗)
  • 反向电流 Ir(9.1V 测试点):资料中出现 100 nA 与 2 μA 两种表述,可能为典型值与最大值或不同测试条件导致,建议以厂方正式 Datasheet 为准
  • 封装:LL-34(轴向玻璃封装,便于通孔安装)

注:按 Pd 500mW 与 Vz=12V 估算的极限 zener 电流 Iz_max ≈ Pd / Vz ≈ 41.7 mA。该值为理论最大耗散条件下的电流,实际设计中应留裕量并考虑封装散热。

三、性能特点(重点)

  • 小型轴向玻璃封装,适合通孔手工焊接与自动插件生产线。
  • 在中等工作电流下具有较低的动态阻抗(Zzt = 20 Ω),可提供相对稳定的电压基准。
  • 低反向泄漏电流(资料所示为 100 nA~2 μA),有利于在微小偏流条件下维持稳压精度。
  • 500 mW 的额定功耗适合低功耗稳压与偏置应用,但不适合高功率吸收或大功率浪涌场景。

四、典型应用场景

  • 小型单片电路的局部 12V 基准或钳位。
  • 传感器与放大器偏置电路中的参考电压源。
  • 过压保护与电压钳位(与限流电阻共同使用)以吸收小幅瞬态。
  • 教学与实验电路中常见的低成本稳压元件。

五、设计与使用建议

  • 工作电流选择:为兼顾稳压精度与热耗散,推荐工作电流范围通常为 1 mA ~ 20 mA。若追求较好稳压性能,5 mA ~ 10 mA 为常见选择;若要求长期稳定与低温升,建议限定在 Iz_max 的 50% 以下(即 < 20 mA)。
  • 串联限流:在做简单的分压/稳压电路时,务必在电源与二极管之间串联合适电阻 R = (Vin - Vz) / Iz,以限制电流与功耗。例:Vin=15V,期望 Iz=10 mA,则 R ≈ 300 Ω,R 上耗散功率需校核。
  • 热管理:500 mW 是在规范温度与良好散热条件下的额定值。轴向玻璃封装散热受限于引线与环境,自身需考虑工作温升与环境温度,建议在高温或长期连续工作时降低电流并预留安全裕量。
  • 噪声与滤波:齐纳二极管在较低电流下噪声较大,若用于精密基准,建议配合滤波电容或选用专用稳压管/基准源。

六、封装与采购信息

  • 品牌示例:YONGYUTAI(永裕泰)有对应封装/型号的生产。
  • 封装:LL-34,轴向玻璃,适合通孔焊接。
  • 选型提示:稳压值容差、测试电流与温度系数等参数在不同生产批次与厂商之间可能有差异,采购前请索取并核对厂方 Datasheet 或样品测量结果。

七、注意事项与结论

  • 资料中关于反向电流的两个数值(100 nA 与 2 μA)存在差异,可能为典型值/最大值或不同测试条件所致;设计时应按最不利条件(较大 Ir)或直接按厂方正式数据进行保守设计。
  • 不建议将此类 500 mW 级别的稳压二极管用于大电流稳压或高能量浪涌吸收;这类场合应选用功率更大或有散热措施的稳压器件。
  • 总结:BZV55C12 是一款适合低功耗、空间受限应用的 12V 稳压二极管,在合理限流与散热条件下,可为小功率电路提供简洁低成本的稳压与钳位解决方案。购买与最终设计前,请参考并遵循厂方详细 Datasheet 的全部电气与热特性说明。

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