WMSIC Electronic Components

DOWO RCLAMP0502B

ModelRCLAMP0502B
PackageSOT-523
BrandDOWO
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
DOWO RCLAMP0502B
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
RCLAMP0502B
Electronic Component
1
Package
SOT-523
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.029g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.6pF;0.3pF
Electronic Component
BM0230041549
Operating Temperature
55℃~+125℃
Voltage
13V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2

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

RCLAMP0502B 产品概述

一、产品简介

RCLAMP0502B 是 DOWO(东沃)推出的一款双路超低电容瞬态抑制二极管(TVS),采用 SOT-523 超小封装,专为高速数据线和精密接口的静电放电(ESD)与脉冲浪涌保护设计。器件为单向双通道结构,既能在有限空间内实现有效防护,又不会对信号完整性造成明显影响。

二、主要技术参数

  • 钳位电压(VC):13 V
  • 工作温度:-55 ℃ ~ +125 ℃
  • 击穿电压(Vbr):6 V
  • 反向截止电压(Vrwm):5 V(适合 5 V 系统)
  • 峰值脉冲功率(Ppp):70 W(10/1000 μs 或典型脉冲条件)
  • 峰值脉冲电流(Ipp):4 A
  • 反向漏电流(Ir):≤ 500 nA
  • 结电容(Cj):0.6 pF;0.3 pF(双通道典型值)
  • 通道数:双路(双通道独立保护)
  • 极性:单向
  • 类型:ESD 抑制器
  • 封装:SOT-523
  • 防护等级:符合 IEC 61000-4-2 / IEC 61000-4-4 / IEC 61000-4-5 标准

三、关键特性与优势

  • 极低结电容:0.3–0.6 pF 的超低电容设计,最大限度降低对高速信号的负载,适合 USB、HDMI、LVDS、SATA 等高速接口。
  • 小尺寸封装:SOT-523 封装占板面积小,便于高密度布局与移动设备应用。
  • 高能量吸收能力:峰值脉冲功率 70 W 与 4 A 峰值脉冲电流,能够可靠钳制常见的 ESD 与浪涌事件。
  • 低漏电流:≤ 500 nA 的低漏电设计,适用电池供电及低功耗系统。

四、典型应用场景

  • 手机、平板等移动终端的外部接口保护(USB、耳机、充电口)。
  • 通信设备与网络接口(Ethernet PHY 侧、SFP 插槽保护)。
  • 工业控制、医疗设备中对信号线路的精密保护。
  • 摄像头模块、显示接口(MIPI、HDMI)等对信号完整性要求高的场合。

五、封装与布局建议

  • 建议将器件尽量靠近被保护的接口或连接器放置,缩短走线长度以降低感抗。
  • 对地回流路径应尽可能短且低阻,必要时在器件附近布置旁通地 vias。
  • 对差分高速线,请注意匹配差分阻抗,避免在保护器处产生阻抗突变。
  • SOT-523 封装焊盘设计需遵循厂家推荐,确保可靠焊接与热性能。

六、使用与选型建议

  • 若系统工作电压为 5 V 或以下,Vrwm = 5 V 的 RCLAMP0502B 是合适选择,可在正常工作下避免误触发。
  • 对极高速差分信号优先考虑结电容 0.3 pF 的通道组合;若单端接口对地保护,可采用 0.6 pF 通道。
  • 对于需要更高能量吸收或更低钳位电压的应用,可在系统级上与串联阻抗或其他保护元件配合使用。

七、可靠性与合规性

RCLAMP0502B 满足 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)与 IEC 61000-4-5(浪涌)相关要求,工作温度范围宽(-55 ℃ ~ +125 ℃),适应工业级环境。推荐在可靠性验证中结合实际系统做 ESD/浪涌注入测试,以确认 PCB 布局与接地策略的有效性。

如需器件的详细电气特性曲线、封装尺寸图和 PCB 焊盘建议,请提供联系信息或直接索取 DOWO 的产品技术手册与样片评估资料。

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