WMSIC Electronic Components

FUXINSEMI 2P4M-89-3L 2P4M

Model2P4M-89-3L
PackageSOT-89
BrandFUXINSEMI
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
FUXINSEMI 2P4M-89-3L
Type
FUXINSEMI
Minimum package
1000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
2P4M-89-3L
Electronic Component
1
Package
SOT-89
Electronic Component
Thyristor (SCR) / Module
Electronic Component
0.14g
Electronic Component
1
Electronic Component
BM0257321735
Surge Current
20A@50Hz
Latching Current(Ih)
4mA
Current(It)
2A
Electronic Component
Electronic Component
Electronic Component
1000
Voltage(Vtm)
1.55V
Gate Voltage(Vgt)
800mV

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

2P4M-89-3L 产品概述

一、产品简介

2P4M-89-3L 是富芯森美(FUXINSEMI)推出的一款单向晶闸管(SCR,俗称可控硅)模块,采用小型SOT-89封装,面向需要高耐压、低触发门极驱动的开关与保护场合。该器件具有600V的断态峰值电压和极低的门极触发要求,适用于中低功率开关、浪涌耐受及过压保护等应用。

二、主要规格参数

  • 门极触发电压 Vgt:800 mV(典型)
  • 门极触发电流 Igt:200 μA(典型)
  • 保持电流 Ih:4 mA
  • 断态峰值电压 Vdrm:600 V
  • 通态峰值电压 Vtm:1.55 V(典型)
  • 额定通态电流 It:2 A(连续额定,需按封装散热条件使用)
  • 浪涌电流:20 A @ 50 Hz(单次或短时浪涌能力)
  • 门极平均耗散功率 PG(AV):100 mW
  • 封装:SOT-89
  • 类型:单向可控硅

三、产品特点与优势

  • 极低门极驱动需求:Igt 仅 200 μA、Vgt 0.8 V,便于微控制器或低功耗逻辑直接触发;适合使用较大阻值门极电阻降低驱动功耗。
  • 高耐压能力:600 V 的断态峰值使其可用于市电侧或高压直流侧的保护与控制场合。
  • 良好的浪涌承受能力:20 A(50Hz)短时浪涌能力,适合处理启动浪涌或瞬态过流。
  • 小型SOT-89封装:体积小,适合空间受限的板级应用,同时方便自动化贴装与加工。

四、典型应用场景

  • AC 主控开关、整流侧控制(单向导通场合)
  • 过压/过流自恢复保护与闸流器(如保险替代、过压切断)
  • 小功率相位控制调光、调速电路(需注意热耗与散热)
  • 电源浪涌抑制、软启动与浪涌吸收电路(配合RC吸收网络)
  • 工业控制、家电控制板上作为单元开关或保护元件

五、设计与使用建议

  • 门极驱动:由于 Igt 很小,可由 MCU 或逻辑电平直接触发。示例计算:若 MCU 输出 3.3 V,考虑 Vgt=0.8 V,选择门极电阻 Rg ≈ (3.3−0.8)/200 μA ≈ 12.5 kΩ,为保证触发裕量,可采用 10 kΩ ~ 22 kΩ 范围的门极电阻;若使用 5 V 驱动,相应阻值可提高。门极平均耗散 100 mW,正常门极电流下功耗极小,但避免长时间大电流通过门极。
  • 热管理:器件在导通时的压降约 Vtm≈1.55 V,若连续电流接近 2 A,则器件功耗 P ≈ 3.1 W,SOT-89 封装在无额外散热条件下难以承受长期高功耗,应通过 PCB 大铜箔散热、缩短导通占空比或降低工作电流来控制结温。建议将连续工作电流按实际板级散热能力充分降额。
  • 抑制dv/dt:高 dv/dt 可能导致误触发,建议在高速开关或感性负载侧并联 RC 抑制网络或使用 snubber 以提高可靠性。
  • 浪涌使用:20 A 浪涌能力用于短时冲击,避免重复大幅浪涌或长时间过载;设计时考虑器件的重复脉冲能力与热累积。
  • 保护与测试:上板后注意 ESD 防护与试验,避免门极或主极受到高压脉冲损坏。

六、封装与可靠性注意

SOT-89 小型化封装便于板载密集布置,但散热面积有限。推荐设计时在器件底部和周围留出较大铜箔,并与地或散热层连接以提升热传导。遵循焊接温度曲线与湿敏等级要求,避免超规范回流温度或潮湿回流导致封装应力。

七、选型与替代建议

若需双向交流控制(相当于可控硅对称导通),建议使用两只反并联晶闸管或选择双向触发器件(如TRIAC)。如需更高持续电流或更低通态压降,可考虑更大封装或更高额定电流的可控硅型号。

总结:2P4M-89-3L 以其低门极触发、电压耐受高与小型封装的组合,适合板级中低功率开关与保护场合。但在使用时需重视封装散热与导通功耗管理,合理配置门极电阻、抑制网络与板级散热,以保证长期稳定可靠运行。

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