WMSIC Electronic Components

EVERLIGHT EL816S1(D1)(TU)(SG)(BY) EL816S1

ModelEL816S1(D1)(TU)(SG)(BY)
PackageSMD-4P
BrandEVERLIGHT
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
EVERLIGHT EL816S1(D1)(TU)(SG)(BY)
Type
EVERLIGHT
Minimum package
2000

Technical parameters

Electronic Component
EVERLIGHT
Electronic Component
EL816S1(D1)(TU)(SG)(BY)
Electronic Component
1
Package
SMD-4P
Electronic Component
Transistor Output Optocoupler
Electronic Component
0.5g
Electronic Component
1
Electronic Component
3us
Electronic Component
BM0127456943
Operating Temperature
55℃~+110℃
Load Voltage
80V
Type
DC
Output Current
50mA
Output Type
Photoelectric Transistor
(Pd)
200mW
(tr)
4us

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

EL816S1(D1)(TU)(SG)(BY) 产品概述

EL816S1 是台湾亿光(EVERLIGHT)推出的一款晶体管输出型光电耦合器,采用 SMD-4P 贴片封装,面向需要隔离传输直流信号的各类电子应用。该器件以高隔离电压、宽温度范围和高电流传输比(CTR)为主要特点,适用于工业控制、通信接口及电源监控等场合。

一、主要性能亮点

  • 隔离电压:5 kVrms(典型,能提供良好的输入—输出电气隔离,满足一般电子系统对隔离性能的要求)。
  • 输入类型:DC(红外发光二极管作为输入驱动元件)。
  • 输出类型:光电三极管,便于与下游电路直接连接形成开集电极输出结构。
  • CTR(电流传输比):最小 50%,最大/饱和值可达 600%,说明在低驱动电流下仍能获得较大的输出响应(CTR 范围较宽,设计时需考虑最大最小值变化)。
  • 最大输出电流(IC):50 mA,可驱动中等负载。
  • 典型饱和压(VCE(sat)):0.10 V(测试条件通常为 IF=20mA、IC=1mA),表明器件在小电流工作点下导通电压很低。
  • 上升/下降时间:tr≈4 μs,tf≈3 μs,适合低至中速数字信号隔离应用。
  • 工作温度范围:-55 ℃ 至 +110 ℃,满足严格环境条件的长期可靠性需求。
  • 最大反向电压 Vr(LED):6 V;正向压降 Vf ≈ 1.2 V(典型)。
  • 负载电压(最大 VCEO/VCBO 类似规格):80 V(适合较高电压侧的开集电极拉升)。
  • 总功耗 Pd:200 mW(封装内部功率限制,需在设计时注意散热与功率分配)。

二、封装与型号后缀说明

  • 封装:SMD-4P(四引脚表面贴装封装),体积小,适合自动贴装生产。
  • 型号后缀 (D1)(TU)(SG)(BY) 为工厂的封装、包装或出货选项代码(例如托盘/卷带、无铅/含铅、标识等)。具体含义和可用选项应以厂商资料或样品标签为准,建议在量产前确认数据手册与订货表。

三、典型应用场景

  • MCU 与高压/噪声电路之间的数字信号隔离(按需选择 IF 与拉电阻实现可靠触发)。
  • 开关电源(SMPS)控制信号隔离与反馈环路(低 VCE(sat) 有利于降低功耗和误判)。
  • 工业自动化控制模块、继电器驱动信号隔离、PLC 输入/输出隔离。
  • 电源监测、电流检测辅助隔离以及一般低速/中速通信接口隔离。

四、设计注意事项与典型电路建议

  • LED 驱动与限流:根据供电电压与期望的 LED 电流计算限流电阻。示例:若 MCU 输出 5 V,期望 IF=1 mA,Vf≈1.2 V,则 R ≈ (5−1.2)/1mA ≈ 3.8 kΩ(取标准值 3.9 kΩ)。若需更大输出比例可适当提高 IF,但不要超过 If 最大 60 mA。
  • 拉电阻设计:输出端常采用上拉电阻到 VCC,R 值取决于期望的逻辑切换速度与输出电流能力。考虑到 IC 最大 50 mA,一般选择几千欧到几十千欧范围以限制静态电流并保证切换速度。
  • CTR 变动:器件 CTR 变化范围大(50%–600%),实际电路中应以最小 CTR 做最坏情况计算以保证可靠触发;若需高精度或低失效率设计,可采用闭环或冗余方案。
  • 反向电压与浪涌保护:LED 反向耐压仅 6 V,电路中应避免反向电压或加并联保护二极管。输出端若面对电感性负载,应加防护元件以保护光耦输出晶体管。
  • 热管理与长期可靠性:总功耗 200 mW,为保证长期可靠性需避免在高环境温度下长时间接近最大功耗工作,必要时在 PCB 设计上提供更好的散热条件或采用降低占空比的驱动方式。

五、可靠性与选型建议

  • 工业温度范围与高隔离电压使 EL816S1 适合工业类应用,但若项目有具体安规(如 UL 认证)或耐压/污染等级要求,请务必查阅厂商数据手册与认证声明。
  • 在量产选型时,关注器件的 CTR 批次差、包装形式(卷带/托盘)、无铅合规性以及存储/回流焊工艺条件。建议先索取样片并在目标系统中做典型工况测试验证传输特性与寿命。

如需进一步的管脚、典型电气特性曲线或封装尺寸图,请提供是否需要我查找并整理厂方数据手册的关键页信息,或直接参考 EVERLIGHT 官方规格书以获得完整参数与应用指导。

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