WMSIC Electronic Components

DIOTEC(德欧泰克) Z1SMA82

ModelZ1SMA82
PackageSMA(DO-214AC)
BrandDIOTEC
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
DIOTEC Z1SMA82
Type
DIOTEC
Minimum package
7500

Technical parameters

Electronic Component
DIOTEC
Electronic Component
Z1SMA82
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Zener Diode
Electronic Component
0.109g
Electronic Component
1
(Zzt)
100Ω
Electronic Component
BM0228548966
Diode
1
Current(Ir)
1uA@62V
Power Dissipation(Pd)
1.5W
Electronic Component
77V~88V
Electronic Component
50℃~+150℃
Electronic Component
7500
Electronic Component
82V

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

Z1SMA82 产品概述

Z1SMA82 为 DIOTEC(德欧泰克)推出的独立式稳压二极管(SMA 封装,DO‑214AC),设计用于中高电压的稳压与过压保护场合。其标称稳压值为 82V,标称范围 77V~88V,适用于对电压参考及抑制浪涌有中等功率需求的应用场景。该器件体积小、安装方便,适配表面贴装(SMD)工艺,便于批量生产与模块化设计。

一、主要电气与热参数概览

  • 稳压(标称):82V
  • 稳压范围:77V ~ 88V
  • 反向漏电流 Ir:1 μA @ 62V(等级特性,表示在较低电压下的漏泄性能)
  • 最大耗散功率 Pd:1.5 W(在规定的散热条件下的允许耗散功率)
  • 阻抗 Zzt:100 Ω(代表在测试条件下的动态阻抗,影响电压调节精度)
  • 工作结温范围:-50 ℃ ~ +150 ℃
  • 封装:SMA(DO‑214AC),适合表面贴装

二、特点与优势

  • 稳压电压相对较高(82V),适合高压侧的参考或保护应用。
  • SMA 封装提供良好的机械强度与热传导路径,便于自动贴装与回流焊处理。
  • 低漏电流特性(在 62V 时仅 1 μA),在高阻抗检测与参考电路中有利于降低误差与功耗。
  • 中等耗散(1.5W)可满足小功率稳压与瞬态吸能需求,同时对 PCB 散热有一定要求以保障长期可靠性。
  • 阻抗约 100 Ω,指示在小电流变化时电压的动态响应范围,适用于不要求超高精度稳压的场景。

三、典型应用场景

  • 高压参考源:在要求稳定高压基准但电流需求不大的测量或偏置电路中作为稳压元件。
  • 过压保护:用于防止负载或下游电路承受超出限值的高电压脉冲或故障电压(需与串联限流电阻或箝位元件配合)。
  • 开关电源辅助稳压:在辅助电路或次级回路中提供简单的过压钳位与参考保护。
  • 测量与检测模块:高压信号限幅或作为电压比较器、保护电路的参考节点。

四、使用与设计建议

  • 电流计算:在最大耗散 Pd=1.5W 条件下,器件在稳压时的最大允许电流 Iz_max ≈ Pd / Vz ≈ 1.5 W / 82 V ≈ 18.3 mA。设计时应确保工作电流低于该值并考虑裕量与温升。
  • 串联电阻配置:使用 Z1SMA82 进行稳压时,常在输入端串联限流电阻 R。例如,若输入为 V_in,负载电流为 I_L,所需流过稳压管的保持电流为 I_Z,则 R = (V_in − Vz) / (I_Z + I_L)。并计算稳压管耗散功率 Pz = Vz × I_Z。
  • 热管理:Pd 为在规定散热条件下的额定耗散,使用时应考虑 PCB 铜箔散热面积与周围元件的热耦合,必要时加大散热铜箔或采用散热垫以降低结温提升可靠性。
  • 动态阻抗影响:Zzt=100 Ω 表示在测试条件下的动态阻抗,快速电流变化时会导致稳压值波动,若电源或负载波动较大,应采用旁路电容或改用动态阻抗更低的方案。

五、封装与装配建议

  • 封装:SMA(DO‑214AC),适用自动贴片与回流焊工艺。
  • 焊接建议:遵循器件制造商及行业通用的回流焊曲线与预热/保温工艺,避免过度热循环与局部过温,装配后应保证焊点良好且无机械应力。
  • ESD 与搬运:建议在生产与装配过程中采取静电防护措施,避免静电放电对半导体结造成损伤。

六、可靠性与注意事项

  • 温度范围:器件设计允许的结温 -50 ℃ 到 +150 ℃,但长期工作应避免在高结温附近持续运行,以延长寿命与稳定性。
  • 功耗余量:实际设计中建议留出功耗裕量(例如不超过额定 Pd 的 60%~80% 工作),并考虑环境温度变化与散热限制进行降额设计。
  • 不适合场景:由于 Pd 与动态阻抗的限制,不适合替代高功率浪涌吸能器件或要求极低噪声、极高精度的基准源。

七、型号与选购提示

  • 型号示例:Z1SMA82(由 DIOTEC 提供)
  • 选购时注意确认稳压范围与测试条件(尤其是测试电流与温度)、包装批次与质量认证,并根据实际应用评估是否需要阻值匹配、电流保护与额外的滤波元件。

总之,Z1SMA82 是一款适用于中高电压、小功率稳压与过压保护的 SMA 封装稳压二极管,具备可靠的高压稳压特性与表面贴装工艺兼容性。合理的电流限流、散热设计与电路保护措施能确保其在实际应用中的稳定性与寿命。

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