WMSIC Electronic Components

SUPSiC GAQY205S

ModelGAQY205S
PackageSOP-4
BrandSUPSIC
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
SUPSi C GAQY205S
Type
SUPSIC
Minimum package
2000 卷

Technical parameters

Electronic Component
SUPSIC
Electronic Component
GAQY205S
Electronic Component
1
Package
SOP-4
Electronic Component
Solid State Relay (MOS Output)
Electronic Component
0.183g
Electronic Component
1
Electronic Component
BM0264397125
Resistor
500mΩ
Operating Temperature
40℃~+85℃
Electronic Component
1A
Load Voltage
100V
(Pd)
500mW
(Vf)
1.13V
Current(If)
7mA
(Ton)
150us

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

GAQY205S 产品概述

一、概述与定位

GAQY205S 是 SUPSiC(国晶微半导体)推出的一款单通道、常开型(1A,Single Pole Single Throw - Normally Open)的固态继电器/光耦合式固态开关器件,采用 SOP-4 表面贴装封装。器件面向需要电气隔离、长寿命、高可靠性的小功率开关场景,支持高达 100V 的负载电压与 500mA 的连续负载电流,适合工业控制、通信、家电和测试测量等应用。

二、主要性能特点

  • 触点形式:1A(单刀单掷 - 常开),固态输出,无机械触点,具有长寿命与抗振性能。
  • 连续负载电流:500 mA(持续导通能力)。
  • 负载电压(最大耐压,关断时):100 V。
  • 导通电阻(Rds_on):约 500 mΩ(典型/最大值,决定导通损耗与热耗散)。
  • 正向压降(输入 LED Vf):1.13 V(在 If=7 mA 驱动时)。
  • 正向电流(输入驱动 If):7 mA(推荐开通驱动电流作为典型触发条件)。
  • 隔离电压(Vrms):2.5 kV(输入与输出之间的工频绝缘能力)。
  • 导通/截止时间:Ton = 150 μs,Toff = 150 μs(适用于低频开关与控制信号,非高频 PWM 或高速数字通信)。
  • 工作温度范围:-40 ℃ ~ +85 ℃。
  • 总功耗(Pd,封装极限):500 mW(器件在 PCB 上的热限需按此进行系统级热设计)。
  • 封装:SOP-4(四引脚、表面贴装,便于自动化生产)。

三、典型电气与热设计要点

  • 输入侧驱动:典型触发电流为 7 mA,输入 LED 电压约 1.13 V。以 5 V 驱动 MCU 输出为例,推荐限流电阻约 (5 V - 1.13 V)/7 mA ≈ 554 Ω(常用值 560 Ω)。尽量在允许的输入电流范围内稳定驱动,避免长时间过流导致 LED 老化。
  • 输出侧功耗估算:在满载 500 mA 时,导通损耗约为 I^2·R = 0.5^2 × 0.5 Ω = 0.125 W(125 mW),远低于封装 Pd 500 mW;但需注意环境温度与 PCB 散热条件对器件结温的影响,必要时加大铜箔面积或散热路径。
  • 开关速度:Ton/Toff 各为 150 μs,适合开关频率较低的应用(例如开关量隔离、继电控制、仪器开关),不建议用于高频调制场合。
  • 隔离与安全:2.5 kV 工频隔离能有效应对常规工业控制与信号隔离要求,但在需要更高隔离等级或符合特定安全认证(如 5 kV 或更高的绝缘要求)时,应评估是否满足系统标准并考虑加强绝缘或改用高隔离等级器件。

四、典型应用场景

  • MCU 与高压电路之间的信号隔离和开关控制。
  • 测试测量设备中的电子开关替代机械继电器,用于降低抖动与延长寿命。
  • 工业自动化 I/O、传感器供电或开关回路的隔离驱动。
  • 通信设备中低速线路的隔离。
  • 家电控制板的低电流开关场合,且需减少电磁噪声与机械磨损的场景。

五、使用与可靠性建议

  • 驱动电流与开启阈值:推荐按照典型 If=7 mA 设计输入驱动;若使用不同驱动电压或需要更高安全裕度,请参考器件数据手册进行实际的 LED 驱动曲线校准。
  • 温度与散热管理:在高环境温下或靠近热源的 PCB 区域,应增加铜箔面积或考虑热过载保护策略,以保证结温不超过规定极限并延长寿命。
  • 并联/并用:通常不建议并联多个同型号固态继电器以提升电流,因为器件的导通电阻及电流分配存在差异;需特殊并联设计时应精细匹配并加热均衡措施。
  • PCB 布局:保持输入与输出之间适当的爬电与气隙距离,符合系统安规与 EMI 要求;输入端加入旁路电容可抑制干扰,输出端可根据负载特性加 RC 抑制或限流保护。
  • ESD 与浪涌保护:尽管器件有一定耐受性,但在有强电磁或感性负载的环境中,应并联合适的 TVS 或缓冲电路以提高系统可靠性。

六、总结

GAQY205S 以其 500 mA 的持续载流能力、100 V 的耐压和 2.5 kV 的输入输出隔离,结合 SOP-4 的常见贴片封装,为需要电气隔离、长寿命和低导通损耗的低速开关场合提供了可靠的固态解决方案。在系统设计时应关注输入驱动、热管理与隔离距离,以保证器件长期稳定工作。如需进一步的引脚定义、电气特性曲线或典型应用电路,请参考 SUPSiC 官方数据手册或联系供应商获取完整文档。

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