WMSIC Electronic Components

Littelfuse TPSMB650CA-A TPSMB650CA

ModelTPSMB650CA-A
PackageDO-214AA
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Littelfuse TPSMB650CA-A
Type
LITTELFUSE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LITTELFUSE
Electronic Component
TPSMB650CA-A
Electronic Component
1
Package
DO-214AA
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.21g
Electronic Component
1
Electronic Component
BM0226986706
Operating Temperature
65℃~+150℃
Voltage
897V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
800nA
Voltage(VBR)
617.5V

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

TPSMB650CA-A 产品概述

一、产品概述

TPSMB650CA-A 是 Littelfuse(美国力特)出品的一款汽车级瞬态抑制二极管(TVS),采用 DO-214AA(SMB)表面贴装封装,为双向保护结构,针对高电压瞬态浪涌提供可靠钳位保护。产品通过 AEC‑Q101 车规认证,工作温度宽 (-65℃ 至 +150℃),适用于车用及工业现场的高压总线与敏感电子模块的浪涌防护。

二、主要技术参数

  • 钳位电压(Vc):897 V(典型)
  • 击穿电压(Vbr):617.5 V
  • 反向截止电压(Vrwm):553 V
  • 峰值脉冲功率(Ppp):600 W
  • 峰值脉冲电流(Ipp):800 mA
  • 反向漏电流(Ir):800 nA
  • 极性:双向(Bi‑Dir)
  • 防护等级/符合标准:IEC 61000‑4‑4(EFT)、IEC 61000‑4‑2(ESD)
  • 封装:DO‑214AA(SMB),2 引脚
  • 额定温度范围:-65℃ ~ +150℃
  • 类型:TVS(二极管型瞬态抑制器)

(注:峰值功率及脉冲参数以厂商数据手册条件为准,具体波形/测试条件请参阅技术资料。)

三、关键特性

  • 高压工作点:Vrwm=553 V,适合高压母线或蓄电池组的防护场景。
  • 强力浪涌吸收:600 W 峰值脉冲功率配合约 897 V 的钳位电压,可在短脉冲下限制过压,保护下游器件。
  • 低漏电流:800 nA 的低反向电流,利于系统在待机或敏感测量场景保持低功耗与高精度。
  • 双向结构:支持正负向浪涌,适用于极性可能反转的线路或交流/脉冲干扰场合。
  • 车规可靠性:通过 AEC‑Q101 认证,满足汽车电子长期可靠性要求。
  • 抗干扰能力:符合 IEC 61000‑4‑2/4‑4 抗静电与脉冲群标准,便于满足整车与工业 EMC 要求。

四、典型应用场景

  • 汽车高压系统:HEV/EV 高压总线、车载充电模块、逆变器外围保护。
  • 工业电源与控制:工业电源输入端、驱动电路、变频器接口保护。
  • 通信与测量设备:高压测量接口、保护敏感前端模块免受静电和瞬态冲击。
  • 其他高压电子系统:任何需要在高工作电压环境下提供双向瞬态抑制的电路。

五、封装与布局建议

  • 封装为 DO‑214AA(SMB)表面贴装,便于自动化贴装与回流焊工艺。
  • 推荐将 TVS 器件尽量靠近被保护的接口或连接器放置,以缩短导线/走线的寄生感抗,提升抑制效果。
  • 注意热量散发与焊盘设计,高能脉冲可能产生瞬时热量,需结合 PCB 热散设计与适当的铜箔面积。
  • 在并联或多点保护时,注意匹配器件参数与布局均衡,避免单点过载。

六、选型与使用注意事项

  • 确认系统的最大工作电压与 Vrwm(553 V)匹配,避免在常态下进入击穿区。
  • 针对特定脉冲波形(如 10/1000 μs、8/20 μs 等)核对厂商数据手册中对应的 Ppp/Ipp 条件与钳位曲线。
  • 在严苛或重复冲击环境下评估热冲击寿命与必要的冗余保护。
  • 若需更低钳位、更大脉冲电流或单向保护,请参考 Littelfuse 其他型号以获得最优方案。

总结:TPSMB650CA-A 以其高压耐受、600 W 峰值能量吸收和车规等级,适合用于汽车与工业领域的高压瞬态保护。设计时请结合具体脉冲条件与 PCB 布局,参照完整数据手册进行最终电气与热设计验证。

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