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EL817(M)(A)
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-DIP
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：80% @ 5mA
- Current Transfer Ratio (Max)：160% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：35V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- Current - DC Forward (If) (Max)：60 mA
- Vce Saturation (Max)：200mV
- Operating Temperature：-55°C ~ 110°C
- Mounting Type：Through Hole
- Package / Case：4-DIP (0.400", 10.16mm)
- Supplier Device Package：4-DIP
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Overview
The EL817(M)(A) is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode optically coupled to an NPN phototransistor detector in a 4-DIP package with 0.4-inch (10.16mm) wide lead spacing. Key electrical parameters include a maximum collector-emitter voltage of 35V, a maximum forward current of 60mA, and a nominal current transfer ratio of 80% at IF=5mA and VCE=5V. The device supports a high isolation voltage of 5000Vrms and operates within a temperature range of -55°C to +110°C.
Feature Summary
- High isolation voltage capability between input and output circuits
- Wide lead spacing configuration for enhanced safety clearance
- RoHS compliant and halogen-free construction
Applications
- Signal transmission between circuits of different potentials
- Programmable logic controllers
- System appliances and measuring instruments
Procurement Notes
Verify the specific suffix requirements against the official Everlight datasheet to ensure compatibility with wide-lead DIP packaging standards. Confirm that the selected variant meets all necessary regulatory approvals such as UL, VDE, or CSA for the target application region. Cross-reference the current transfer ratio specifications to ensure they align with circuit design requirements.
Selection Notes
Select this component when wide lead spacing is required for improved creepage distance and safety isolation. Ensure the design accounts for the specified current transfer ratio range and operating temperature limits. Verify that the 4-DIP package dimensions match the PCB layout constraints and that the thermal management strategy supports the maximum operating temperature of 110°C.
Part Context
This part belongs to the EL817 series of photocouplers, which are widely used for electrical isolation in electronic circuits. The series includes various package options and lead configurations to suit different mounting and isolation needs. The EL817(M)(A) specifically denotes the version with wide lead spacing, distinguishing it from standard pitch variants.
Replacement Considerations
Direct substitutes may include other EL817 series variants with compatible pinouts and electrical characteristics. Verify that any replacement maintains the required isolation voltage and current transfer ratio specifications. Consult the manufacturer's cross-reference guide for approved alternative part numbers.
