WMSIC Electronic Components

TECH PUBLIC SD24C

ModelSD24C
PackageSOD-323
BrandTECH PUBLIC
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

19 specifications

Core information

Product name
TECH PUBLIC SD24C
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
SD24C
Electronic Component
1
Package
SOD-323
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.029g
Electronic Component
1
Cj- Capacitor
40pF
Electronic Component
BM0230856382
Voltage
45V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
28V
Electronic Component
Electronic Component
Electronic Component
3000

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

SD24C 产品概述

一、产品简介

SD24C 是台舟电子(TECH PUBLIC)推出的一款 SOD-323 封装瞬态电压抑制器(TVS),面向24V工作电压场景的浪涌与静电防护需求。器件具备低漏电、快速响应和高脉冲能量吸收能力,适合用于工业控制、通信接口及车载/大型设备的端口保护。

二、主要参数

  • 反向截止电压(Vrwm):24 V
  • 击穿电压(Vbr):28 V
  • 钳位电压(Vc):45 V(典型,Ipp 8 A @ 8/20μs 条件)
  • 峰值脉冲电流(Ipp):8 A(8/20μs)
  • 峰值脉冲功率(Ppp):400 W(8/20μs)
  • 反向电流(Ir):1 μA(常温)
  • 结电容(Cj):40 pF
  • 封装:SOD-323
  • 防护等级/符合标准:IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)、IEC 61000-4-5(浪涌)

三、性能解读与应用建议

  1. 适用电压区间
    Vrwm 24V 意味着该型号适用于常见24V直流系统(工业/车载24V母线)或需要对24V侧进行端口保护的场合。Vbr 28V,结合45V钳位值,在8A脉冲下能够将瞬态电压限制在安全范围内,保护后端元件不被过压损坏。

  2. 能量吸收能力
    400W(8/20μs)表示在常见浪涌规范下有良好的吸收能力,但该能量参数仅针对短脉冲(8/20μs)条件,不能用于连续能量吸收,若存在重复或长时突发需配合限流或熔断保护器件。

  3. 低漏电与高速信号影响
    1μA 的低反向漏电适合对待机功耗敏感的设备;40pF 的结电容对高速信号线(如高速以太网、USB3.0 等)可能存在一定影响,更适合电源线、低速通信(如RS-485/CAN/LIN)及一般IO端口保护。对敏感高速差分信号,应评估是否需要更低电容的器件。

四、布局与使用注意

  • 位置:TVS 芯片应尽量靠近需保护的连接器或器件输入端,最短走线以减小感抗和反射。
  • 地线与散热:为提高耐冲击能力,保证热量能及时扩散,应采用较短直接的地回流路径,必要时在焊盘下放热过孔或扩展地铜箔。
  • 串联元件:对于可能出现较大连续能量或需要限流的场合,建议在保护线上配合熔断器、PTC 或限流电阻共同使用以分担能量。
  • 极性确认:若用于双向浪涌保护需确认器件型号为双向型;常规 Vrwm 指示为对单向保护的标称电压,请以样片或正式 Datasheet 验证极性结构。

五、典型应用场景

  • 工业自动化 24V 电源端的输入防护
  • 车载/商用车 24V 系统的接口/通信端口保护(需核查车规要求)
  • 接口/通信线缆处的浪涌与静电保护(RS-485、CAN、GPIO)
  • 电源管理电路的瞬态吸收与器件保护

六、合规与采购建议

SD24C 满足 IEC 61000-4-2/4-4/4-5 等常见抗扰度标准,但具体等级(例如 kV 值、脉冲次数等)应参考厂方完整测试报告或 Datasheet。采购时请注明型号(SD24C)、封装(SOD-323)与品牌(TECH PUBLIC / 台舟电子),并向供应商索取完整规格书与器件曲线(I-V、钳位特性、功率曲线)以便在项目中做准确仿真与验证。

如需进一步的电路接法建议、PCB 参考布局或在特定系统(例如 CAN、RS-485、24V 车载母线)中的选型比较,我可以根据系统细节提供更具体的设计说明。

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