WMSIC Electronic Components

TECH PUBLIC TP1SMA5929BT3G

ModelTP1SMA5929BT3G
PackageSMA
BrandTECH PUBLIC
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
TECH PUBLIC TP1SMA5929BT3G
Type
TECH PUBLIC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
TP1SMA5929BT3G
Electronic Component
1
Package
SMA
Electronic Component
Zener Diode
Electronic Component
0.119g
Electronic Component
1
(Zzt)
9Ω
Electronic Component
BM0265006200
Diode
1
Power Dissipation(Pd)
1.5W
Electronic Component
13.8V~15.8V
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.

TP1SMA5929BT3G 产品概述

一、产品简介

TP1SMA5929BT3G 是台舟电子(TECH PUBLIC)推出的一款表面贴装齐纳二极管,采用SMA小型塑料封装,针对稳压、浪涌吸收与电压钳位应用优化设计。该器件属于宽压系列,稳压电压覆盖3.6V至200V多个型号,本型号标称稳压值为15V,适合中低功耗、体积受限的保护和参考电路使用。

二、关键参数

  • 二极管配置:1个独立式齐纳二极管(SMD)
  • 标称稳压值(Vz):15V
  • 稳压值允许范围:13.8V ~ 15.8V
  • 反向漏电流(Ir):1 µA @ 11.4V
  • 耗散功率(Pd):最大 1.5W(总功耗)
  • 齐纳阻抗(Zzt):9 Ω(测试工况下的动态阻抗)
  • 工作结温范围(Tj):-55 ℃ ~ +150 ℃
  • 封装:SMA(表面贴装)

三、电气特性与性能说明

TP1SMA5929BT3G 在其额定测试电流下表现出较低的动态阻抗(典型 Zzt = 9 Ω),这意味着在小范围电流变化时稳压性能良好。反向漏电流在低电压点(11.4V)仅为1 µA,适合要求低偏流的电池、电源监控或参考源电路。稳压范围(13.8–15.8V)表明器件在制造公差与温漂下仍能维持接近15V的稳压值。

请注意:齐纳二极管的稳压值与测试电流密切相关,实际电路中应根据工作电流选择合适的串联限流电阻或恒流源来保证在指定测试点附近工作,从而获得预期的稳压性能。

四、热性能与功耗管理

器件最大耗散功率为1.5W,但这是在推荐散热条件和规定结温下的上限值。在实际应用中应考虑:

  • 环境温度与PCB散热能力:SMA 封装的热阻相对较大,PCB焊盘面积和铜厚度会显著影响器件结温。
  • 降额设计:当环境温度上升或周边器件热源较多时,应按厂商热特性曲线对耗散功率进行线性降额设计。
  • 瞬态与浪涌:短脉冲能量吸收能力与平均耗散能力不同,设计时需评估冲击能量并确认器件不会因瞬时过热而损坏。

在没有具体热阻数据时,建议在原型验证阶段对结温进行测量,或通过增加散热铜箔和减少器件自身功耗来保证长期可靠性。

五、封装与安装

SMA 封装适合自动贴装与回流焊工艺。推荐的注意事项:

  • 使用厂家给出的PCB焊盘尺寸与过孔布局以获得最佳焊接质量与散热性能。
  • 回流焊温度应遵循器件的热循环与峰值温度限制,避免过高的焊接温度损伤封装材料。
  • 为降低焊接应力和提高可靠性,贴装时避免在高应力区域与过度弯曲的PCB位置。

六、典型应用场景

  • 电源稳压与参考:作为低成本的本地稳压元件,用于基准电压或辅助电源回路。
  • 过压/浪涌保护:在通信接口、信号线或电源线上作为钳位元件,吸收瞬态过压。
  • 电池管理与监测:在低偏流条件下提供稳定的比较电平或阈值检测。
  • 工业与消费电子:适用于体积受限且需要表面贴装的小型电路板。

七、选型与使用注意事项

  • 确认工作电流范围:齐纳稳压电压随电流变化明显,选择合适的工作电流以满足稳压精度需求。
  • 漏电流敏感电路:若应用对微安级漏电流敏感,应在布局或电路上采取隔离或选择更低漏电的型号。
  • 热设计:在接近1.5W功耗时必须评估结温并采取散热措施。
  • 与系列兼容性:该产品属于3.6V~200V的系列,便于在不同电压等级间保持一致封装和工艺。

八、结语

TP1SMA5929BT3G 为一款面向中等功耗、表面贴装场合的15V 齐纳二极管,具有较低动态阻抗和微小漏电流特性,适合用作稳压、钳位与保护元件。实际应用时应结合电路工作电流、PCB散热能力及环境温度进行合理的功耗和热设计,以保证长期稳定可靠运行。若需更详细的热参数或测试曲线,建议参考台舟电子提供的完整数据手册。

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