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PANJIT 1SMA5931_R1_00001
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- PANJIT 1SMA5931_R1_00001
- Type
- PANJIT
- Minimum package
- 1800 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- PANJIT
- Electronic Component
- 1SMA5931_R1_00001
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Zener Diode
- Electronic Component
- 0.111g
- Electronic Component
- 1
- (Zzk)
- 650Ω
- (Zzt)
- 12Ω
- Electronic Component
- BM0263665328
- Diode
- 1
- Current(Ir)
- [email protected]
- Power Dissipation(Pd)
- 1.5W
- Electronic Component
- 17.1V~18.9V
- Electronic Component
- 55℃~+150℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1SMA5931_R1_00001 产品概述
一、产品简介
1SMA5931_R1_00001 为 PANJIT（强茂）生产的一款独立式稳压二极管（Zener），采用SMA（DO-214AC）表面贴装封装，标称稳压值 18V，额定耗散功率 1.5W（1500mW）。该器件为低功率、高可靠性的稳压与过压保护元件，适合在有限空间内实现稳压基准与浪涌吸收功能。
二、主要参数
- 稳压值（标称）：18V
- 稳压值范围：17.1V ~ 18.9V
- 额定耗散功率 Pd：1.5W
- 反向电流 Ir：1µA @ 13.7V
- 动态阻抗 Zzt：12Ω
- 低电流拐点阻抗 Zzk：650Ω
- 工作结温范围：-55℃ ~ +150℃
- 封装：SMA (DO-214AC)，单只独立式
三、性能特点
- 精确的中等电压稳压：18V 标称电压适用于多种中高电压稳压需求。
- 低漏电流：Ir 仅为 1µA（在13.7V 下测），在高阻抗电路中有利于降低静态功耗。
- 良好的动态特性：Zzt=12Ω 在规定测试电流下表现出较低的动态阻抗，稳压电平随电流变化较小。
- 抗突发能力：SMA 封装兼顾体积与散热，适合受限空间内的功率吸收与瞬态抑制。
- 宽温范围：-55℃~+150℃，适用于工业级温度环境。
四、典型应用场景
- 稳压参考源与基准电压输出
- 输入过压保护与浪涌吸收（电源输入端、接口保护）
- 电池管理与充电电路的保护元素
- 工业控制、通信设备及消费电子中需要中等功率稳压的场合
五、封装与热管理建议
SMA（DO-214AC）为标准表面贴装封装，适配自动化贴装与回流焊工艺。由于器件Pd为1.5W，在实际电路设计中应注意热阻与PCB散热布局：
- 在九宫格或大铜箔区域增加散热铜层，并与金属地平面相连以降低结温。
- 在高耗散工况下采用降额使用，避免长时间接近最大Pd。
- 推荐按照厂商回流焊温度曲线进行焊接，以免影响器件可靠性。
六、选型与使用注意事项
- 确认工作电流和功耗：稳压二极管的功耗随反向电流增加，设计时需计算在最大工作电流下产生的功耗并与Pd进行比较。
- 注意稳压电压范围：器件在不同电流时稳压值会有微小变化，请参考电流-电压特性确保满足精度要求。
- 对浪涌电流进行评估：若用于浪涌或脉冲抑制，应评估瞬态能量并考虑并联或更高功率器件。
- 环境与可靠性：在高温或散热受限的场合应增加散热措施或选择更高功率等级的器件。
七、可靠性与包装
PANJIT 品牌提供符合工业级可靠性要求的器件生产与测试流程。SMA 包装适合卷带自动化贴装，出厂前经过参数筛选与外观检验。订购或替换时请确认完整型号与批次以保证一致性。
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