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EL814S(TU)
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-SMD
- Series：-
- Mfr：Everlight Electronics Co Ltd
- Package：Tape & Reel (TR)
- 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：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
- Grade：-
- Qualification：-
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Overview
The EL814S(TU) is a single-channel optoisolator manufactured by Everlight Electronics. It features an AC input configuration with two infrared emitting diodes connected in inverse parallel, optically coupled to an NPN phototransistor detector. The device provides high isolation voltage of 5000 Vrms between input and output circuits. Key electrical parameters include a collector-emitter breakdown voltage (VCEO) of 80 V, a typical forward voltage (VF) of 1.2 V, and a maximum forward current (IF) of 60 mA. The current transfer ratio (CTR) ranges from 50% to 150%. The component operates within a temperature range of -55°C to 110°C and is housed in a compact 4-pin surface-mount package.
Feature Summary
- AC input response capability due to dual inverse-parallel infrared LEDs
- High isolation voltage ensuring safe signal transmission between circuits
- Wide operating temperature range for diverse environmental conditions
- Compact surface-mount packaging for space-constrained designs
Applications
- Signal isolation in AC-powered control systems
- Interface circuits for microcontrollers and logic gates
- Switching power supply feedback loops
- Industrial automation signal transmission
Procurement Notes
Verify the specific suffix TU indicates the tape-and-reel surface-mount packaging variant. Confirm RoHS compliance status and UL/VDE certification numbers match project requirements. Check for any recent product change notifications regarding pinout or material composition. Ensure the supplier provides original manufacturer documentation to guarantee authenticity and traceability.
Selection Notes
Select this component when AC input detection is required without external rectification. The dual-diode structure simplifies circuit design compared to standard DC-input optocouplers. Consider the CTR range and isolation voltage ratings against system safety standards. Evaluate the surface-mount form factor against available PCB real estate and assembly capabilities.
Part Context
The EL814 series belongs to Everlight's family of transistor-output optocouplers. This series is designed for general-purpose isolation applications. The S(TU) variant specifically denotes the surface-mount version with reel packaging. It shares functional similarities with through-hole DIP variants but offers different mechanical integration options for automated assembly processes.
Replacement Considerations
Direct replacements may include other AC-input optocouplers with similar isolation voltages and CTR ranges. Verify pin compatibility and package dimensions before substitution. Ensure the alternative component meets the same regulatory approvals and temperature specifications.
