WMSIC Electronic Components

LRC LBZT52C11T1G

ModelLBZT52C11T1G
PackageSOD-123
BrandLRC
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LRC LBZT52C11T1G
Type
LRC
Minimum package
3000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LBZT52C11T1G
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.032g
Electronic Component
1
(Zzk)
150Ω
(Zzt)
20Ω
Electronic Component
BM0264879991
Diode
1
Current(Ir)
100nA
Power Dissipation(Pd)
500mW
Electronic Component
10.4V~11.6V
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.

LBZT52C11T1G 产品概述

一、主要参数与特性

LBZT52C11T1G 是乐山无线电(LRC)生产的 SOD-123 小封装稳压二极管(齐纳二极管),标称稳压值 11V,稳压值范围 10.4V~11.6V(即典型 ±5% 级别)。关键电气参数如下:

  • 标称稳压:11V
  • 稳压范围:10.4V~11.6V
  • 最大耗散功率 Pd:500mW(SOD-123 封装)
  • 反向静态电流 Ir:100nA(低漏电)
  • 动态阻抗 Zzt:20Ω(测试点附近的小信号阻抗)
  • 谷值阻抗 Zzk:150Ω(接近击穿起始区域时的阻抗)
  • 工作结温范围:-55℃ ~ +150℃

这些参数决定了器件在小电流、低功耗稳压与基准场合的应用价值:低漏电适合高阻电路与微功耗场景,Zzt 较低表明在规定测试电流下具有良好稳压能力,Zzk 较高提示在极小电流下稳压性能下降,应避免长期处于击穿膝值附近工作。

二、典型应用场景

  • 低功耗基准/稳压:为小规模模拟电路或单片机外围提供 11V 参考或保护电压(需串联限流电阻)。
  • 过压/浪涌钳位:在信号线或电源线上限制瞬时过压。
  • 偏置与电平移位:在放大器或比较器电路中作为稳定偏置元件。
  • 测试与校准参考:作为非精密但稳定的电压参考源。

三、设计与热管理要点

  • 最大稳流估算:在 25℃、理想散热条件下,Iz_max ≈ Pd / Vz = 0.5W / 11V ≈ 45mA。然而 SOD-123 封装散热能力有限,不建议长期靠近或达到此值。工程上通常采用稳定余量,连续工作电流建议控制在 10~20mA 范围以内,具体按系统可靠性和温升要求决定。
  • 限流电阻计算公式:R = (Vin - Vz) / Iz;例如 Vin=15V、期望 Iz=10mA,则 R = (15-11)/0.01 = 400Ω,稳压管功耗 Pz = Vz * Iz = 11V * 0.01A = 0.11W,安全低于 Pd。
  • 温度影响:11V 区域的齐纳/雪崩区通常具有非零温度系数,工作温度变化会带来稳压漂移,精密场合需考虑温度补偿或用更高精度参考源。
  • PCB 布局:增大焊盘铜箔面积有助于散热;避免将器件局限在热源附近;保证限流电阻和稳压二极管之间的短走线以减少寄生感抗。

四、驱动与可靠性注意

  • 避免在击穿膝值(低电流区域)长期工作,否则高 Zzk 会导致电压不稳定。
  • 初始上电或瞬态条件下应确保限流元件能承受尖峰电流,防止超过器件瞬态能力。
  • 在高温环境下需进行功率降额(derating),并参考厂商完整数据表进行热阻与结温计算。

五、封装与选型建议

  • 封装:SOD-123,适合表面贴装,体积小、适合高密度 PCB。
  • 品牌:LRC(乐山无线电),适合对性价比与常规性能有要求的消费级与工业级应用。
  • 替代:常见同类型号可参考 BZT52C11 系列等 11V、约 500mW 的 SMD 齐纳二极管,选型时以最大耗散、动态阻抗和温度特性为准匹配。

总结: LBZT52C11T1G 是一款面向小功率稳压与钳位应用的 11V SOD-123 齐纳管,特点为低静态漏电、较低的测试动态阻抗及 500mW 的耗散能力。设计使用时应合理限流并做好热管理,避免长期工作在靠近最大耗散或击穿膝值的条件下,以保证可靠性与稳定性。若需更高精度或更大功率,应选择更高规格的参考源或大封装稳压器。

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