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EL817S2(A)(TA)-G
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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)：80% @ 5mA
- Current Transfer Ratio (Max)：160% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：6µs, 8µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：80V
- 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：Surface Mount
- Package / Case：4-SMD, Gull Wing
- Supplier Device Package：4-SMD
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Overview
The EL817S2(A)(TA)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features an infrared emitting diode optically coupled to a phototransistor detector in a compact surface-mount package. The device provides high isolation voltage of 5000 Vrms between input and output circuits. Key electrical parameters include a collector-emitter breakdown voltage of 80V, a maximum forward current of 50mA, and a typical forward voltage of 1.2V. It operates within a temperature range of -55°C to +110°C.
Feature Summary
- High isolation voltage capability for safe circuit separation
- Compact surface-mount design for space-constrained applications
- RoHS compliant and lead-free construction
Applications
- General-purpose signal isolation
- Digital communication interfaces
- Microcontroller input/output isolation
Procurement Notes
Verify the specific suffix (A)(TA) against the manufacturer's datasheet to confirm pinout and packaging details. Ensure compatibility with existing PCB footprints. Check for RoHS compliance documentation if required by project specifications. Confirm availability through authorized distributors as supply levels may vary.
Selection Notes
Select this component when high isolation voltage is required in a small form factor. Consider the 80V collector-emitter voltage rating for load switching applications. Verify that the CTR range meets the driving requirements of the connected circuit. Ensure thermal management supports the specified operating temperature range.
Part Context
This part belongs to the EL817 series of optocouplers, which are widely used for electrical isolation. The S2 designation typically indicates a specific package variant, often SO-4 or similar surface-mount configuration, distinct from traditional DIP packages. It serves as a modern replacement for legacy through-hole components in automated assembly processes.
Replacement Considerations
Direct replacements must match the 5000Vrms isolation rating and 80V collector-emitter voltage. Verify pinout compatibility for surface-mount packages. Cross-reference with other manufacturers' EL817 equivalents ensuring identical functional characteristics and safety approvals.
