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EL817(S1)(D)(TD)-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)：300% @ 5mA
- Current Transfer Ratio (Max)：600% @ 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 EL817(S1)(D)(TD)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It integrates an infrared emitting diode with an NPN phototransistor detector in a surface-mount package. The device provides electrical isolation between input and output circuits with a rated insulation voltage of 5000 Vrms. Key electrical parameters include a maximum DC forward current of 60 mA, a collector-emitter breakdown voltage of 35 V, and a saturation voltage of 200 mV. It operates within a temperature range of -55°C to +110°C.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits using optical coupling technology.
- Integrates an infrared LED emitter with an NPN phototransistor for efficient signal transmission.
- Designed for surface-mount assembly to facilitate compact circuit board layouts.
Applications
- Digital logic signal transmission and level shifting
- Power supply control and switching circuits
- Electrical isolation between different system grounds
Procurement Notes
Verify the specific suffix (TD) against the manufacturer's latest datasheet to confirm the exact tape and reel packaging configuration. Ensure the component meets all required safety certifications such as UL or VDE for the intended application environment. Cross-reference the part number with official distributor catalogs to confirm current availability status.
Selection Notes
Select this component when surface-mount technology is required for single-channel isolation applications. Consider the 5000 Vrms isolation rating for safety-critical designs. Evaluate the operating temperature range of -55°C to +110°C against environmental conditions. Confirm that the NPN phototransistor output type matches the downstream circuit requirements.
Part Context
This part belongs to the EL817 series of optocouplers from Everlight Electronics. The series typically includes various package options such as DIP and SMD variants. The EL817 family is widely recognized for general-purpose isolation tasks. The specific model denotes a surface-mount version with defined packaging characteristics.
Replacement Considerations
Consult official substitution guides for compatible equivalents. Verify pinout compatibility and electrical parameter overlaps before replacing. Common alternatives may exist within the same manufacturer's portfolio or from other suppliers offering similar transistor-output optocouplers.
