WMSIC Electronic Components

Littelfuse SP4023-01FTG-C SP4023

ModelSP4023-01FTG-C
PackageSOD-323
BrandLittelfuse
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
Littelfuse SP4023-01FTG-C
Type
LITTELFUSE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LITTELFUSE
Electronic Component
SP4023-01FTG-C
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.038g
Electronic Component
1
Electronic Component
BM0231096101
Voltage
40V
Electronic Component
IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
100nA
Voltage(VBR)
16V
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.

SP4023-01FTG-C 产品概述

一、概述

SP4023-01FTG-C 是 Littelfuse(美国力特)推出的一款单向瞬态电压抑制器(TVS),采用紧凑的 SOD-323 封装,专为对抗电源突波和静电放电(ESD)而设计。该器件适用于受限空间的表面贴装应用,能在工业、通信和汽车电子等对浪涌与静电敏感的场合提供可靠保护。

二、主要电气参数

  • 极性:单向
  • 反向截止电压 (VRWM):15 V
  • 击穿电压 (VBR):约 16 V
  • 钳位电压 (VCL):约 40 V(在 8/20 μs、Ipp = 12 A 条件下)
  • 峰值脉冲电流 (Ipp):12 A @ 8/20 μs
  • 峰值脉冲功率 (Ppp):450 W
  • 反向电流 (IR):100 nA(常温下)
  • 防护等级:符合 IEC 61000-4-5(浪涌)与 IEC 61000-4-2(静电放电)标准

三、关键特性与优势

  • 小型 SOD-323 表面贴装封装,适合高密度 PCB 布局。
  • 单向结构适用于直流电源及信号线的单向过压保护,触发阈值与系统工作电压匹配良好(Vrwm 15 V)。
  • 在典型 8/20 μs 浪涌脉冲下具备 12 A 的浪涌承受能力与 450 W 的瞬时功率吸收能力,可有效抑制短时高能脉冲。
  • 低漏电流(100 nA)可减少静态功耗,适合对待机功耗敏感的电子设备。
  • 满足 IEC 61000-4-2 与 IEC 61000-4-5,可靠性与抗扰度经过行业标准验证。

四、典型应用场景

  • 工业控制接口、电源输入保护
  • 通信接口(如串口、低压数据线)防护
  • 汽车车载低压电子模块的瞬态抑制(需确认车规要求)
  • 消费类电子及仪器仪表的差错保护与接口防护

五、封装与安装注意

  • 封装:SOD-323,适用于自动贴装与回流焊工艺。
  • 布局建议:器件应尽可能靠近受保护的输入端或连接器放置,走线应尽量短且粗以降低串联电感和阻抗。保护端到地的回流路径应低阻抗,多层 PCB 推荐使用地平面并通过多点过孔接地。
  • 热管理:虽为瞬态吸收器件,但长时间或重复高能脉冲会产生热累积,设计时需考虑浪涌能量及器件热耗散能力,必要时进行热仿真或作经验性降额处理。

六、设计与选型建议

  • 确认系统最大工作电压应低于 Vrwm(15 V),并留有足够裕量以避免误触发。
  • 若保护线路为双向交流或需双向抑制,应选择对应的双向 TVS 型号;本器件适用于单向直流保护。
  • 对于可能出现高能浪涌的环境,比较 Ppp(450 W)与系统可能承受的浪涌能量,必要时采用外部限流元件(如保险丝、阻容)配合使用。
  • 在高频或高速信号路径上使用时,关注 TVS 的寄生电容对信号完整性的影响(建议参考厂商数据手册中的典型电容值)。

七、可靠性与标准

SP4023-01FTG-C 符合 IEC 61000-4-5(浪涌试验)与 IEC 61000-4-2(静电放电试验)标准,适用于需满足这些抗扰度要求的设计。具体试验等级与通过条件请参阅 Littelfuse 官方数据手册及应用说明。

八、结论与建议

SP4023-01FTG-C 以其小巧封装、较高的瞬态吸收能力和低漏电特性,适合用于对体积与能量吸收能力都有要求的保护场合。选型时应以系统工作电压、预期浪涌能量和信号完整性要求为主要依据,并结合厂商数据手册的典型测试条件与应用示例进行最终验证。如需在特殊环境(高温、车规或更高等级浪涌)中使用,建议参考 Littelfuse 进一步的产品规格或选用专门的车规级/高能级 TVS 器件。

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