WMSIC Electronic Components

TDK AVRH10C270KT150NA8

ModelAVRH10C270KT150NA8
Package0402
BrandTDK
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
TDK AVRH10C270KT150NA8
Type
TDK
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
TDK
Electronic Component
AVRH10C270KT150NA8
Electronic Component
1
Package
0402
Electronic Component
Varistor Resistor
Electronic Component
20mJ
Electronic Component
0.012g
Electronic Component
1
Varistor Voltage
27V
Electronic Component
BM0265606308
Voltage
52V
Static Capacitor
15pF@1kHz
Operating Voltage(DC)
19V
Surge Current
2A

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

AVRH10C270KT150NA8 压敏电阻产品概述

一、产品基本定位

AVRH10C270KT150NA8是TDK公司推出的氧化锌基小型化压敏电阻,核心定位为低电压、小体积、低电容场景下的电路浪涌防护,适配高密度PCB布局的电子设备设计需求,可有效抑制静电放电(ESD)、电源瞬态浪涌等干扰,保护后级敏感元件(如MCU、射频芯片、传感器等)。

二、关键电气参数深度解析

压敏电阻的性能核心由电气参数决定,AVRH10C270KT150NA8的关键参数及意义如下:

  1. 压敏电压(标称值):27V(测试电流0.1mA时的电压)
    是器件的保护阈值——当电路电压超过27V时,器件阻值快速下降(从兆欧级降至欧姆级),导通泄放浪涌电流,避免后级电路过压损坏。
  2. 长期工作电压(DC):19V
    即器件可稳定工作的直流电压上限,需确保电路正常工作电压不超过此值,避免因持续偏压导致的老化失效(通常压敏电阻长期工作电压为标称压敏电压的70%-80%,此处19V符合该范围)。
  3. 钳位电压:52V(峰值浪涌电流2A下的电压)
    是浪涌发生时器件两端的最大电压,直接决定保护能力——52V的钳位值可有效限制电压尖峰,避免敏感元件被击穿(如普通MCU的耐压通常为5V-15V,此钳位值可提供足够防护)。
  4. 峰值浪涌电流(Ipp):2A
    单次可承受的最大浪涌电流峰值,符合0402小封装的电流耐受范围,可应对常见的ESD(静电放电)、电源开关瞬态浪涌等干扰。
  5. 浪涌能量容量:20mJ
    对应2A峰值浪涌下的能量吸收能力,确保器件在单次浪涌中不会因能量过载而损坏(能量公式:(E = 0.5 \times I_{pp} \times V_{钳位} \times t),此处t为浪涌持续时间,符合器件耐受范围)。
  6. 静态电容:15pF(1kHz测试频率下)
    低电容特性是核心优势——远低于传统压敏电阻(通常几十pF至上百pF),可避免对高频信号(如射频、USB 3.0高速信号)造成衰减,适配对信号完整性要求较高的电路。

三、封装与物理特性

AVRH10C270KT150NA8采用0402封装(公制1005,尺寸1.0mm×0.5mm),具备以下特点:

  • 体积紧凑:仅1.0×0.5mm的尺寸,可大幅节省PCB空间,适配智能手机、智能穿戴、小型IoT传感器等高密度布局场景;
  • 焊接兼容性:支持回流焊工艺,符合SMT自动化生产要求,焊接可靠性高(TDK推荐回流焊峰值温度230-245℃,时间≤40秒);
  • 一致性稳定:TDK的封装工艺确保器件尺寸公差小(±0.1mm),批量生产性能一致性高。

四、性能优势与典型应用场景

核心优势

  1. 低电容适配高频电路:15pF的静态电容不影响100MHz以内的高频信号传输,可用于射频前端、USB 3.0/Type-C等高速接口的过压保护;
  2. 小体积高密度布局:0402封装可在PCB上实现密集排布(每平方厘米可容纳约2000个器件),满足小型化设备的集成需求;
  3. 稳定的过压保护:压敏电压精度±10%,钳位电压低,可快速响应浪涌(响应时间<1ns),有效保护敏感元件;
  4. 品牌可靠性:TDK的器件符合AEC-Q200(汽车级)、IEC 61000-4-2(ESD)等标准,耐温范围-40℃至+85℃,适合消费电子、工业控制等多领域应用。

典型应用场景

  1. 便携式电子:智能手机、智能手表的充电接口、数据接口ESD防护;
  2. 小型IoT设备:温湿度传感器、智能门锁的电源浪涌防护;
  3. 高速数字接口:USB 2.0/3.0、HDMI接口的瞬态浪涌抑制;
  4. 低电压电源:12V/19V电源系统(如笔记本电池管理电路)的过压保护。

五、选型与使用注意事项

  1. 工作电压匹配:
    直流电路需确保长期工作电压≤19V;交流电路需注意有效值与峰值换算(交流有效值不宜超过13V,因峰值=有效值×√2≈18.4V)。
  2. 浪涌降额设计:
    单次浪涌电流不超过2A;若为多次浪涌(如ESD重复放电),需参考TDK datasheet降额(10次循环后电流降额至1A以内)。
  3. 电容适配性:
    若应用于GHz级高频电路(如5G射频前端),需进一步确认电容对信号的影响,必要时选用更低电容的器件(如10pF以下)。
  4. 焊接工艺:
    避免手工焊接(易导致温度不均),优先采用回流焊;焊接后需检测器件是否有开裂、虚焊等问题。

综上,AVRH10C270KT150NA8凭借小体积、低电容、稳定防护的特点,成为便携式电子、小型IoT设备等场景的理想过压保护器件。

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