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EL814M
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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)：20% @ 1mA
- Current Transfer Ratio (Max)：300% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：7µs, 11µs
- Input Type：AC, DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- Current - Output / Channel：-
- 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
- Grade：-
- Qualification：-
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Overview
The EL814M is a single-channel optocoupler featuring an AC input configuration with two infrared-emitting diodes connected in inverse parallel, optically coupled to a phototransistor detector. It provides high isolation voltage of 5000 Vrms between input and output circuits. The device supports a wide operating temperature range from -55°C to 110°C and offers a collector-emitter breakdown voltage of 80V. It is housed in a compact 4-pin DIP package suitable for through-hole mounting.
Feature Summary
- AC input response capability due to inverse-parallel infrared diode configuration
- High isolation voltage ensuring safe electrical separation between circuits
- Wide operating temperature range for diverse environmental conditions
Applications
- Digital logic transmission and signal transformation
- Power supply control and switching circuits
- Electrical insulation isolation between systems
- Impedance transformation in electronic interfaces
Procurement Notes
Verify the specific suffix (e.g., M, S, TB) to confirm package type and compliance status. Ensure the selected variant matches the required isolation voltage and thermal specifications. Confirm RoHS and UL/VDE recognition if regulatory compliance is mandatory for the end application. Cross-reference datasheet revisions to ensure parameter consistency.
Selection Notes
Select this component when AC input detection is required without external rectification. The inverse-parallel diode design simplifies circuit topology for AC signals. Verify that the phototransistor output current transfer ratio meets the load requirements. Ensure the 4-pin DIP footprint aligns with the PCB layout constraints.
Part Context
The EL814 series includes variants like EL814S and EL814M, differing primarily in package style and specific manufacturing revisions. The EL814M specifically denotes the standard DIP package version. These devices belong to Everlight's general-purpose optocoupler family designed for reliable signal isolation in industrial and consumer electronics.
Replacement Considerations
Direct substitutes include other AC-input transistor-output optocouplers with similar 5000Vrms isolation and DIP-4 packaging. Verify pinout compatibility and current transfer ratio ranges before substitution. Check thermal ratings and physical dimensions to ensure mechanical fit.
