WMSIC Electronic Components

LRC LMSZ5258BT1G

ModelLMSZ5258BT1G
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 LMSZ5258BT1G
Type
LRC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LMSZ5258BT1G
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.032g
Electronic Component
1
(Zzk)
700Ω
(Zzt)
70Ω
Electronic Component
BM0265388045
Diode
1
Current(Ir)
100nA@27V
Power Dissipation(Pd)
500mW
Electronic Component
34.2V~37.8V
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.

LMSZ5258BT1G稳压二极管产品概述

一、产品核心定位

LMSZ5258BT1G是乐山无线电(LRC)推出的表面贴装独立式稳压二极管,主打36V标称稳压值,采用SOD-123小型封装,专为低功耗、高密度PCB设计场景提供稳定的电压基准或过压保护功能。该器件平衡了小体积与基础性能,适合消费电子、小型电源模块、工业控制等领域的常规稳压需求,是低成本稳压方案的典型选择。

二、关键电参数深度解析

1. 稳压值特性

标称稳压值为36V,误差范围34.2V~37.8V(对应±5%精度),满足多数常规电路对稳压精度的要求。实际应用中需通过限流电阻控制负载电流,确保器件工作在反向击穿的稳压区(避免电流过大导致热损坏)。

2. 反向漏电流

在反向偏置电压27V(未达到稳压值)时,反向漏电流仅100nA,远低于同类器件的典型漏电流(通常为μA级),有效降低静态功耗,适合电池供电、低功耗传感器等场景。

3. 最大耗散功率

额定耗散功率为500mW,结合稳压值可计算最大允许工作电流:
[ I_{\text{max}} \approx \frac{P_d}{V_z} = \frac{500,\text{mW}}{36,\text{V}} \approx 13.9,\text{mA} ]
需注意电路负载电流不得超过此值,避免器件过热击穿。

4. 动态阻抗

  • 测试电流下(通常为( I_z=5,\text{mA} ))的动态阻抗( Z_{zt}=70,\Omega );
  • 最大电流下的动态阻抗( Z_{zk}=700,\Omega )。

动态阻抗越低,稳压电压随负载电流变化越小,该器件的阻抗特性可满足一般稳压场景的稳定性要求(如小功率LED驱动、信号偏置调节)。

三、封装与物理特性

该器件采用SOD-123表面贴装封装,尺寸紧凑(典型值:长2.9mm×宽1.6mm×高1.1mm),适配自动贴装生产线,可大幅节省PCB布局空间,适合便携式设备(如蓝牙模块、微型电源)、高密度工业模块的设计需求。

封装材料符合RoHS环保标准,无铅无卤,满足现代电子产品的环保法规要求。

四、品牌与可靠性说明

乐山无线电(LRC)是国内半导体行业老牌厂商,拥有30余年分立器件研发制造经验,LMSZ5258BT1G经过严格可靠性测试:

  • 工作温度范围:( -55^\circ\text{C} \sim +150^\circ\text{C} )(典型值);
  • 测试项目:温度循环、湿度老化、机械应力(弯曲/振动)等。

产品一致性与稳定性表现优异,可同时覆盖消费级与工业级应用场景。

五、典型应用场景

  1. 小功率电源稳压:如5V转36V辅助电源的输出稳压,或电池供电设备的电压调节,保持输出电压稳定在36V左右,为MCU、传感器等负载提供可靠供电;
  2. 过压保护电路:与限流电阻、TVS管配合,当电路出现瞬时过压(如雷击、电源浪涌)时,稳压管击穿导通,将电压钳位在36V左右,防止敏感器件损坏;
  3. 低精度基准电压源:在无需高精度基准的电路中(如LED驱动偏置、简单信号调理),作为36V基准简化设计;
  4. 工业控制模块:如小型PLC的输入输出接口稳压,满足工业环境下的电压稳定性需求。

六、总结

LMSZ5258BT1G以紧凑的SOD-123封装、36V标称稳压值、低漏电流及合理的功耗设计,成为常规稳压与过压保护场景的高性价比选择。其平衡了体积、成本与性能,适合对空间、成本敏感的电子设计项目,是LRC稳压管系列中的经典型号。

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