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EL817(S)(TB)-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)：50% @ 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(S)(TB)-G is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and provides 5000 Vrms isolation voltage between input and output circuits. The device utilizes a surface-mount 4-SMD (gull-wing) package configuration, designated by the 'S' suffix in the model number, with tape-and-reel packaging indicated by '(TB)'. It operates within a temperature range of -55°C to +110°C and supports a maximum collector current of 50 mA.
Feature Summary
- Provides high-voltage electrical isolation between input and output circuits
- Utilizes a compact surface-mount package for automated assembly
- Features an NPN phototransistor output stage
Applications
- Signal isolation in industrial control systems
- Interface circuits for microcontrollers and logic devices
- Power supply feedback loops
Procurement Notes
Verify the specific Current Transfer Ratio (CTR) bin required for the application, as EL817 variants are often categorized by CTR ranges. Confirm that the surface-mount footprint matches the PCB design. Check availability status as this component may be subject to lifecycle changes or restricted distribution channels depending on the region.
Selection Notes
Select this variant when surface-mount technology is required instead of through-hole DIP packages. Ensure the design accounts for the thermal characteristics of the SMD package. Verify that the 5000 Vrms isolation rating meets the safety requirements of the target application environment.
Part Context
This component belongs to the EL817 series of photocouplers from Everlight. The series includes various package options such as DIP-4 and SMD configurations. The EL817 family is widely recognized for its reliability in providing galvanic isolation in electronic circuits.
Replacement Considerations
Direct replacements include other EL817 series variants with compatible pinouts, such as EL817(S)(TU)-G or EL817(S)(C)(TB)-G, provided the CTR specifications align with the circuit requirements.
