WMSIC Electronic Components

LRC LM5Z9V1T1G

ModelLM5Z9V1T1G
PackageSOD-523
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LRC LM5Z9V1T1G
Type
LRC
Minimum package
5000

Technical parameters

Electronic Component
LRC
Electronic Component
LM5Z9V1T1G
Electronic Component
1
Package
SOD-523
Electronic Component
Zener Diode
Electronic Component
0.024g
Electronic Component
1
(Zzk)
160Ω
(Zzt)
15Ω
Electronic Component
BM0230029727
Diode
1
Current(Ir)
200nA@7V
Power Dissipation(Pd)
200mW
Electronic Component
8.5V~9.6V
Electronic Component
65℃~+150℃
Electronic Component
5000

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

LM5Z9V1T1G 产品概述

一、产品简介

LM5Z9V1T1G 是 LRC(乐山无线电)推出的一款独立式稳压二极管(Zener),标称稳压值 9.1V,稳压范围 8.5V ~ 9.6V,额定耗散功率 200mW,封装为 SOD-523 超小型贴片封装。该器件适合对体积和成本敏感、需要低功耗参考或简单稳压的应用场景。

二、主要电气参数

  • 标称稳压:9.1V(范围 8.5V~9.6V)
  • 反向电流 Ir:200 nA @ 7.0V(在低电压下漏电极小)
  • 耗散功率 Pd:200 mW(封装及散热受限,请注意热管理)
  • 阻抗 Zzt:15 Ω(稳态工作时的动态阻抗,影响稳压精度)
  • 阻抗 Zzk:160 Ω(近转折区/低电流区的等效阻抗,反映拐点特性)
  • 工作结温范围:-65 ℃ ~ +150 ℃
  • 封装:SOD-523(超小型 SMD)

三、电性能解读与设计参考

  • 最大稳态电流的粗算:在满额定功耗下,Iz_max ≈ Pd / Vz ≈ 0.2 W / 9.1 V ≈ 22 mA。长期工作应远低于此值以提高可靠性。
  • 动态阻抗 Zzt = 15 Ω 表明在测试电流附近输出电压受电流变化影响仍有限,但若要求较高精度应并用缓冲放大或参考源。
  • Zzk = 160 Ω 提示在接近击穿起始区域、低电流时电压变化敏感,低电流工况下稳压效果变差。
  • 反向漏电 200 nA(7 V)说明在非稳压或保护场合漏电非常小,适合电池供电等低功耗场景。

示例:若用 12V 电源供电并用该稳压二极管作 9.1V 参考,期望稳流 10 mA,则限流电阻 R = (12 - 9.1) / 0.01 ≈ 290 Ω;散热功率约 (12 - 9.1) × 10 mA ≈ 29 mW,远低于 Pd。

四、典型应用场景

  • 低功耗参考电压源与偏置电路
  • 简易稳压与电压钳位(防止微弱过压)
  • 模拟输入保护与温度补偿电路中的低成本参考
  • 便携设备、仪表、电池供电模块以及空间受限的 SMD 设计

五、封装、热管理与可靠性建议

SOD-523 为超小型贴片封装,便于在高密度 PCB 布局中使用,但散热能力有限。使用时注意:

  • 保持结温低于额定上限(150 ℃),在高环境温度下按厂商的功率降额策略处理(减少稳流或增加散热面积)。
  • 通过增加 PCB 铜箔面积或与地/电源平面良好热连接,改善热散逸。
  • 在低电流区(接近击穿电流)避开不稳定工作点以获得更稳定的稳压特性。
  • 推荐在输入端并联适当电容以抑制噪声与瞬态响应。

六、采购与替代

  • 品牌:LRC(乐山无线电)
  • 封装:SOD-523,适合贴片回流焊工艺,订购时确认包装卷带规格与最小订购量。
  • 若需要更高功率或更低动态阻抗,可考虑同类更大封装或专用参考源器件。

总结:LM5Z9V1T1G 为一款适合低功耗、空间受限设计的 9.1V 独立稳压二极管,特征是低漏电、适中的动态阻抗与 200mW 的功率等级。正确的限流、热设计与工作点选择可有效发挥其在便携与嵌入式电路中的作用。

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