＊本文档中包含的信息反映了具有代表性的使用场景，仅供技术参考。
The information contained in this document reflects representative usage scenarios and is intended for technical reference only.
＊本文档中提到的产品型号和规格如有更改或改进，恕不另行通知。在生产使用之前，客户应参考产品规格书的最新数据表。
Product models and specifications mentioned in this document are subject to change or improvement without notice. Customers should refer to the
latest data sheets in the product specifications prior to production use.
＊在使用本文档中引用的产品时，请确保产品在数据手册中规定的环境和电气限制范围内运行。如果客户使用超过指定的限制，晶台将不会对任何后续问
题负责。
When using the products referenced in this document, ensure that the products are operated within the environmental and electrical limits specified
in the data sheet. If the customer uses the product beyond the specified limits, Kinglight will not be responsible for any subsequent problems.
＊本文档中的信息适用于电子元器件应用中的典型用法。如有任何特殊用途，请向晶台咨询，以获得进一步的帮助。
The information in this document applies to typical use in electronic component applications. For special applications, please contact Kinglight for
further assistance.
＊未经晶台允许，不得复制或转载本文件的内容和信息。对于最新的信息，请参考官方网站 Http://www.kinglight-OC.com。
The contents and information in this document may not be copied or reproduced without the permission of Kinglight. For the latest information, please
visit the official website Http://www.kinglight-OC.com.
KL3H7L Datasheet
KL3H7L
PHOTO TRANSISTOR
SSOP4 晶体管光耦
KL3H7L
Datasheet
Ht
tp://www.kinglight-OC.com
Rev 1.0
第 2
页
共
12 页
1. 产品特点 Product features
• 电流转换率(Current transfer ratio)
CTR: 50~600% at I
F
=0.1mA, V
CE
=5V
• 输入与输出间高隔离电压(Viso=3750 V rms)
High isolation voltage between input and output (Viso=3750 V rms)
• 外形为2.0mm的紧凑型4pin SSOP
Compact 4 Pin SSOP with a 2.0 mm profile
• 符合无卤素(溴<900ppm, 氯<900ppm, 溴+氯<1500ppm)
Compliance Halogen Free (Br < 900ppm, Cl < 900ppm, Br+Cl < 1500ppm)
• 符合欧盟REACH法规 Compliance with EU REACH
• 无Pb且符合ROHS标准 Pb free and compliant with RoHS standards
2. 产品描述 Product Description
• KL3H7L型是由一个红外发射二极管和光电晶体管构成光电耦合器
The KL3H7L series devices consist of an infrared emitting diode, optically coupled to
a phototransistor detector encapsulated with green compound.
• 它们被封装在一个4引脚小外形SMD中.
They are packaged in a 4-pin small outline SMD package
3. 产品应用 Product Applications
• DC-DC转换器 DC-DC Converters
• 可编程序控制器 Programmable controllers
• 电信设备 Telecommunication equipment
• 不同电位,不同阻抗的电路之间的信号传输
Signal transmission between circuits of different potentials and impedances
4. 功能图 Functional Diagram
引脚配置 Pin Configuration
1. 阳极 Anode
2. 阴极 Cathode
3. 发射极 Emitter
4. 集电极 Collector