WMSIC Electronic Components

Nexperia PZU18BL,315 PZU18BL

ModelPZU18BL,315
PackageDFN1006-2
BrandNexperia
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

20 specifications

Core information

Product name
Nexperia PZU18BL, 315
Type
NEXPERIA
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
NEXPERIA
Electronic Component
PZU18BL,315
Electronic Component
1
Package
DFN1006-2
Electronic Component
Zener Diode
Electronic Component
0.012g
Electronic Component
1
(Zzt)
20Ω
Electronic Component
BM0227557579
Diode
1
Current(Ir)
50nA@13V
Power Dissipation(Pd)
250mW
Electronic Component
16.94V~19.03V
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.

PZU18BL,315 稳压二极管产品概述

PZU18BL,315是Nexperia(安世)推出的一款独立式稳压二极管,专为小功率、高密度电路的电压基准或稳压需求设计,具备体积小巧、低漏电流、性能稳定等特点,广泛适用于便携设备、传感器电路等场景。

一、产品基本属性

该器件属于Nexperia稳压二极管系列,采用独立式配置(无内部并联/串联结构),每个器件可独立完成稳压功能,适合单点电压调节或基准源设计。型号中“18”对应标称稳压值,“BL”为产品系列标识,“315”为封装/批次相关代码,整体定位为小功率通用稳压器件,可满足多数中小信号电路的稳压需求。

二、核心电性能参数

PZU18BL,315的关键电性能参数经过优化,可适配不同应用场景的精度要求,核心参数及实际意义如下:

  1. 稳压值特性:标称稳压值为18V,实际工作范围覆盖16.94V~19.03V(包含制造公差与温度变化的典型范围),无需额外校准即可满足多数通用电路的稳压需求;
  2. 反向漏电流:在反向偏置电压13V时,反向电流仅为50nA,低漏电流特性有效降低静态功耗,尤其适合电池供电的低功耗设备(如智能手环、蓝牙耳机);
  3. 最大耗散功率:额定耗散功率为250mW,需注意实际工作时的功率裕量(计算方式:最大允许工作电流≈250mW/18V≈13.9mA);
  4. 动态阻抗:稳压区动态阻抗为20Ω,阻抗越小意味着稳压效果越稳定,可有效抑制负载波动或输入电压变化对输出的影响,提升系统精度。

三、封装与物理特性

PZU18BL,315采用DFN1006-2封装,属于无引脚扁平封装(DFN),具备以下核心优势:

  • 体积小巧:封装尺寸约1.0mm×0.6mm,厚度仅0.5mm左右,可大幅节省PCB空间,适配手机、可穿戴设备等小型化产品;
  • 低寄生参数:无引脚设计减少了寄生电感和电容,适合高频或高速电路的稳压需求(如射频前端、高速ADC参考电压);
  • 焊接可靠:支持回流焊工艺,引脚布局简单,焊接时不易出现虚焊问题,适配自动化生产;
  • 散热特性:虽体积小,但250mW的额定功率可满足多数小功率应用的散热需求,无需额外散热设计(实际应用需确保PCB铜箔散热面积足够)。

四、典型应用场景

结合PZU18BL,315的参数特点,其典型应用场景包括:

  1. 小信号电压基准:为MCU、ADC、压力传感器等提供稳定的18V参考电压,适配中高压小信号电路;
  2. 低功耗便携设备稳压:如智能手表、蓝牙耳机的辅助稳压电路,低漏电流特性可延长电池续航时间;
  3. 高密度PCB稳压节点:在手机主板、工业控制板等高密度电路中,实现单点电压调节,不占用过多布线空间;
  4. 简单过压保护:利用稳压管的反向击穿特性,对后级敏感元件(如运放、传感器)进行过压钳位(当输入电压超过18V时,器件击穿分流,保护电路);
  5. 电源输出微调:配合线性稳压器或开关电源,微调输出电压至目标值,提升系统整体稳压精度。

五、应用注意事项

为确保器件稳定工作,需注意以下几点:

  1. 功率裕量控制:实际工作电流需小于13.9mA(250mW/18V),避免超过额定耗散功率导致器件过热损坏;
  2. 温度系数考量:稳压值会随温度变化(安世稳压管典型温度系数约±0.05%/℃),高精度应用需增加温度补偿电路;
  3. 焊接工艺规范:DFN封装需遵循安世推荐的回流焊温度曲线(如峰值温度260℃左右,时间不超过10秒),避免热应力损坏器件;
  4. 反向电压限制:避免长期工作在超过最大反向电压(通常为稳压值的1.2倍,即21.6V)的场景,防止器件不可逆击穿失效。

综上,PZU18BL,315稳压二极管凭借小体积、低功耗、稳定性能等优势,成为中小信号电路稳压或基准源的可靠选择,适配多种小型化、低功耗应用场景。

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