WMSIC Electronic Components

LRC LBZX84C51LT1G

ModelLBZX84C51LT1G
PackageSOT-23
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 LBZX84C51LT1G
Type
LRC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LBZX84C51LT1G
Electronic Component
1
Package
SOT-23
Electronic Component
Zener Diode
Electronic Component
0.03g
Electronic Component
1
(Zzt)
180Ω
Electronic Component
BM0264880193
Diode
1
Current(Ir)
50nA
Power Dissipation(Pd)
300mW
Electronic Component
48V~54V
Electronic Component
55℃~+150℃
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.

LBZX84C51LT1G稳压二极管产品概述

一、产品基本信息与品牌背景

LBZX84C51LT1G是乐山无线电(LRC) 推出的一款表面贴装稳压二极管,属于Z84系列稳压管范畴。该器件专为中等功率需求的稳压、基准电压及过压保护场景设计,采用紧凑的SOT-23封装,适配高密度PCB布局,满足便携式及小型电子设备的空间限制。

LRC作为国内半导体行业的老牌厂商,其产品覆盖消费电子、工业控制、汽车电子等领域,以稳定的生产工艺、一致的批量性能及符合RoHS等环保标准的优势,成为众多工程师的选型首选。

二、核心电气参数解析

该器件的核心参数直接决定了应用边界,具体如下:

1. 稳压值特性

标称稳压值为51V,稳压范围覆盖48V~54V。此范围兼顾了生产一致性与实际工况波动(如温度、电流变化),确保在不同环境下仍能提供可靠的电压输出,适配多场景需求。

2. 反向漏电流

反向漏电流((I_r))仅为50nA,属于低漏电流水平。低漏电流可显著降低静态功耗,尤其适合对功耗敏感的便携式设备(如智能穿戴、电池供电模块)。

3. 耗散功率

最大耗散功率((P_d))为300mW,能满足中等功率稳压场景(如小功率电源输出稳压),避免因功率过载导致器件过热损坏。

4. 动态阻抗

动态阻抗((Z_{zt}))为180Ω,反映了稳压管在工作电流变化时的电压稳定性。180Ω的阻抗在51V电压段属于较好水平,可有效抑制电流波动对输出电压的影响,提升稳压精度。

5. 工作结温范围

支持**-55℃~+150℃**的宽结温范围,覆盖了工业高温、低温户外等极端环境需求,无需额外温度补偿即可稳定工作,提升了产品可靠性。

三、封装特性与物理优势

LBZX84C51LT1G采用标准SOT-23表面贴装封装,具有以下物理优势:

1. 体积小巧

典型尺寸为长≈2.9mm、宽≈1.6mm、高≈1.1mm,可大幅节省PCB空间,适配高密度集成设计(如智能手机主板、小型传感器模块)。

2. 贴装兼容性

适配自动化贴装设备,支持回流焊、波峰焊等主流焊接工艺,生产效率高,降低了手工焊接的误差风险。

3. 引脚设计

虽为3脚封装,但实际有效引脚为2脚(阴极、阳极),第三脚为dummy引脚(无电气功能),简化了电路设计与焊接操作。

四、性能优势与可靠性

  1. 稳压性能稳定:标称稳压值精度适中,动态阻抗较低,结合宽稳压范围,可满足多数中等精度稳压需求(如电源输出稳压、基准电压参考)。
  2. 低功耗特性:50nA的反向漏电流减少了静态损耗,适合电池供电的便携式设备,延长了电池续航时间。
  3. 宽温可靠性:-55℃~+150℃的结温范围覆盖了大部分应用场景,无需额外温度补偿电路即可稳定工作,降低了设计复杂度。
  4. 品牌质量保障:LRC的生产工艺成熟,批量一致性好,符合RoHS环保标准,减少了电路设计中的选型风险。

五、典型应用场景

该器件的特性使其适用于以下场景:

1. 直流电源稳压

作为电源输出端的稳压元件,稳定后级电路的输入电压,防止电压波动损坏敏感元器件(如MCU、传感器)。

2. 基准电压源

配合运算放大器构成低精度基准电压电路,用于传感器信号调理、ADC参考电压等场景。

3. 过压保护

并联在电路关键节点,当电压超过稳压值时导通,钳位电压保护后级电路免受瞬态过压(如静电、浪涌)冲击。

4. 便携式电子设备

如智能手机、智能手表的辅助稳压电路,利用其小体积优势适配紧凑的内部空间。

5. 工业控制模块

在PLC、温度传感器模块等工业设备中,宽温特性确保其在高温(如烤箱、电机附近)或低温(如户外控制柜)环境下稳定工作。

六、使用注意事项

  1. 功率余量:实际应用中需计算稳压管的耗散功率((P=V_{稳压}×I_{工作电流})),确保不超过300mW最大值,可通过串联限流电阻降低功率损耗。
  2. 反向连接:稳压管需反向接入电路(阴极接正电源端,阳极接负电源端),正向接入无法实现稳压功能。
  3. 焊接工艺:焊接时需遵循SOT-23封装的温度参数(如回流焊峰值温度≤260℃,焊接时间≤10秒),避免高温损坏器件。
  4. 温度补偿:若对稳压精度要求较高,需考虑温度对稳压值的影响(51V稳压管温度系数约为+0.05%/℃),可通过外部电路(如运放反馈)补偿。

综上,LBZX84C51LT1G凭借紧凑封装、稳定稳压性能及宽温可靠性,成为中等功率稳压场景的高性价比选型。

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