WMSIC Electronic Components

DIOTEC(德欧泰克) SMZ12

ModelSMZ12
PackageDO-213AB
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DIOTEC SMZ12
Type
DIOTEC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DIOTEC
Electronic Component
SMZ12
Electronic Component
1
Package
DO-213AB
Electronic Component
Zener Diode
Electronic Component
±5%
Electronic Component
0.168g
Electronic Component
1
(Zzt)
4Ω
Electronic Component
BM0227699762
Diode
1
Current(Ir)
1uA@7V
Electronic Component
11.4V~12.7V
Electronic Component
Electronic Component
Electronic Component
5000

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

SMZ12 产品概述

一、产品简介

SMZ12 是 DIOTEC(德欧泰克)出品的一款单只稳压二极管,标称稳压值约为 12.05V,精度 ±5%,最大功耗 2000mW(2W),采用 DO-213AB(MELF)圆柱玻璃封装。该器件适用于对电压参考或过压保护有中等功率需求的电路,兼具温度稳定性和可靠的反向击穿特性。

二、主要参数

  • 类型:单颗齐纳二极管(Zener Diode Single)
  • 稳压值(标称):12.05V(常用表述 12V)
  • 稳压值范围:11.4V ~ 12.7V(±5%)
  • 允许偏差:±5%
  • 最大功耗:2000mW(2W)
  • 小信号阻抗(Zzt):约 4Ω(在规定测试电流下测得)
  • 反向电流(Ir):1μA @ 7V(反向漏电流)
  • 封装:DO-213AB (MELF) 双端引脚
  • 引脚数:2

三、特性与优势

  • 稳定的参考电压:标称 12V 附近的稳压性能适合作为电压基准或次级稳压用途。
  • 低反向漏流:在 7V 时反向电流仅 1μA,适合对漏电敏感的电路。
  • 低小信号阻抗:约 4Ω 的阻抗有利于抑制小幅度电压波动,提高负载响应性能。
  • MELF 封装:玻璃封装利于热散与可靠性,适合需要较好温度循环性能的场合。
  • 品牌与一致性:DIOTEC 提供批量一致性与可靠性跟踪,适用于工业与消费类应用。

四、典型应用

  • 电压基准与简单稳压电路(配合限流电阻使用)
  • 过压/钳位保护(保护敏感元件、接口或输入电源)
  • 测试与测量电路中低成本电压参考
  • 汽车电子、工业控制与通信设备中次级稳压或保护电路(视实际环境与散热条件)

五、使用与注意事项

  • 功耗与散热:标称最大功耗 2W 为工作条件下的极限值,实际使用需留有余量并考虑环境温度与PCB散热(铜箔面积或散热片)。长时间高功耗工作需进行降额处理。
  • 测试电流与工作点:Zener 特性与小信号阻抗受测试电流影响,选用时应根据电路实际电流点确认稳压性能。
  • 焊接与机械:MELF 玻璃封装需注意焊接温度曲线与机械振动,手工焊接或不当搬运可能导致破损。推荐使用合适的回流曲线并避免过度热冲击。
  • 工作环境:避免超过器件最高结温与湿度极限,长时间高温会降低可靠性并影响稳压精度。

六、封装与外形

SMZ12 采用 DO-213AB(MELF)圆柱玻璃封装,尺寸小、体积紧凑,适合自动贴装或特殊手工装配。MELF 结构在振动与温度循环下具有较好可靠性,但需注意安装与存储防潮、防冲击。

七、可靠性与质量保证

DIOTEC 产品通常经过出厂筛选与电气特性测试,合格率高。建议在关键应用中进行样品寿命测试(包括温度循环、湿热与冲击测试)以验证特定应用场景下的长期稳定性。

八、选型与采购建议

在选型时确认:工作电流范围、实际稳压点(是否允许 ±5% 的公差)、最大允许功耗与散热条件。若需更高精度或更大功率,可考虑其他公差等级或更高功耗封装。采购时请与授权代理或供应商确认包装、批次与出厂测试数据,以保证一致性与可追溯性。

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