WMSIC Electronic Components

Sunlord SDV2012E260C800NPTF

ModelSDV2012E260C800NPTF
Package0805
BrandSUNLORD
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
Sunlord SDV2012E260C800NPTF
Type
SUNLORD
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUNLORD
Electronic Component
SDV2012E260C800NPTF
Electronic Component
1
Package
0805
Electronic Component
Varistor Resistor
Electronic Component
50mJ
Electronic Component
0.051g
Electronic Component
1
Varistor Voltage
34.5V
Electronic Component
BM0264536320
Voltage
58V
Static Capacitor
80pF@1MHz
Operating Voltage(AC)
18.4V
Operating Voltage(DC)
26V
Surge Current
20A

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

Sunlord SDV2012E260C800NPTF 压敏电阻产品概述

一、产品定位与核心属性

SDV2012E260C800NPTF是顺络电子(Sunlord)针对小功率电路瞬态过压防护推出的0805封装压敏电阻,兼具「小型化、低电容、高可靠性」三大核心特点。其参数围绕「26V常态工作电压+80pF低静态电容」优化,适配高密度PCB布局的电子设备(如智能家居、工业控制),是低电压场景浪涌防护的高性价比选择。

二、关键电气参数深度解析

该型号的电气参数直接决定防护性能,需结合应用场景精准理解:

  1. 压敏电压(34.5V):25℃下的典型导通阈值,是压敏电阻从「高阻态(常态)」向「低阻态(防护态)」切换的临界电压。选型时需高于电路最大常态工作电压(26V),确保常态下漏电流极小(μA级),不影响电路正常运行。
  2. 钳位电压(58V):当峰值浪涌电流达20A时的残压,是防护效果的核心指标。该值越低,浪涌抑制能力越强——58V残压可将过压限制在多数小功率器件(如MCU、传感器)的耐受极限内。
  3. 工作电压(DC26V/AC18.4V):常态下可长期稳定工作的电压值,AC18.4V为有效值(与DC26V满足「AC有效值×√2≈DC值」的工程逻辑),需严格匹配电路的正常工作电压范围。
  4. 峰值浪涌电流(20A):单次8/20μs浪涌波(模拟雷电、静电放电的典型波形)的峰值电流承受能力,属于0805封装压敏电阻的常规防护水平,满足小功率电路的瞬态冲击需求。
  5. 静态电容(80pF@1MHz):高频下的寄生电容,是信号传输电路的关键参数。80pF的低电容值可避免高频信号损耗,适配RS485、CAN等低速/中速信号接口防护(若用于100MHz以上高频电路,需评估容抗影响)。

三、封装与可靠性设计

  1. 小型化封装:采用0805公制封装(尺寸2.0mm×1.2mm),体积紧凑,适配高密度PCB布局(如智能家居传感器、可穿戴设备),不占用额外布线空间。
  2. 无铅工艺与环境适应性:符合RoHS环保标准,采用无铅焊接工艺,焊接可靠性高(回流焊曲线适配标准0805封装参数);工作温度范围覆盖**-40℃125℃**,满足工业级(-4085℃)与消费电子(-20~85℃)的温湿度环境需求。
  3. 参数一致性:顺络量产工艺确保压敏电压、电容等参数偏差控制在±30%内,批次一致性好,降低电路设计的冗余成本(无需额外预留过大防护裕量)。

四、典型应用场景

该型号的参数特性使其适配以下场景:

  1. 低电压电源端口:24V工业控制电源、12V消费电子适配器、5V USB电源端的浪涌防护(可有效抑制电源瞬态尖峰)。
  2. 信号传输接口:RS485/CAN总线、低速传感器接口(如温度、湿度传感器)的过压防护(低电容不影响信号完整性)。
  3. 小型电子设备:智能家居节点(如智能开关、传感器)、可穿戴设备(如智能手环)的瞬态防护(0805封装适配设备小型化趋势)。
  4. 通信接口:USB2.0/3.0数据端(需结合数据端电容需求,80pF适配低速USB)、音频接口的防护(抑制静电放电干扰)。

五、选型与使用注意事项

  1. 电压匹配原则:压敏电压需高于电路最大常态工作电压(如26V电路选34.5V,避免常态漏电流过大导致器件发热)。
  2. 电容适配:高频信号电路(如100MHz以上)需计算容抗(80pF在100MHz下容抗≈20Ω),若信号要求严格,需搭配更低电容的防护器件。
  3. 浪涌降额:多次浪涌冲击需降额使用(如峰值电流降额至10A以内),避免器件老化失效(压敏电阻为一次性防护器件,多次过流会导致性能下降)。
  4. 焊接规范:遵循0805封装回流焊曲线(预热150-180℃/2-3min,峰值230-260℃/10-30s),避免过热损坏(顺络建议焊接后无明显变色、变形)。
  5. 无极性安装:压敏电阻无正负极,可任意方向焊接,简化PCB布局(无需区分方向,降低生产难度)。

该型号凭借平衡的防护性能与小型化设计,成为低电压场景浪涌防护的主流选择,广泛应用于工业控制、消费电子、智能家居等领域。

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