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EL817(S)(B)(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)：130% @ 5mA
- Current Transfer Ratio (Max)：260% @ 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)(B)(TD)-G is a surface-mount transistor output optocoupler from Everlight Electronics. It features a single channel with 5000 Vrms isolation voltage between input and output. The device utilizes an infrared emitting diode coupled to an NPN phototransistor. Key electrical parameters include a collector-emitter breakdown voltage of 35 V, a maximum collector current of 50 mA, and a forward current of 60 mA. The current transfer ratio ranges from 50% to 600% at IF=5mA and VCE=5V. Operating temperature spans from -55°C to +110°C.
Feature Summary
- High isolation voltage capability between input and output circuits
- Compact surface-mount package design for automated assembly
- RoHS compliant and halogen-free construction
Applications
- Signal transmission between circuits of different potentials
- Interface between microprocessors and power control circuits
- Solid-state relay driver applications
Procurement Notes
Verify the specific suffix codes against the manufacturer datasheet to confirm pin configuration and tape/reel specifications. Ensure the ordering part number matches the required CTR binning and packaging type. Cross-reference the RoHS compliance status with the latest environmental declarations provided by Everlight Electronics Co Ltd.
Selection Notes
Select this component when surface-mount technology is required for high-voltage isolation in compact designs. Consider the CTR range suitability for the driving circuit requirements. Verify that the operating temperature range meets the application environment constraints. Ensure the package dimensions fit the available PCB real estate.
Part Context
This part belongs to the EL817-G series of photocouplers manufactured by Everlight Electronics. The series includes various DIP and SMD options with different lead spacings and bending configurations. The EL817 family is widely recognized for general-purpose signal isolation in industrial and consumer electronics.
Replacement Considerations
Direct replacements may include other EL817 variants such as EL817(S)(C)(TD)-G or EL817(S)(D)(TD)-G depending on the required Current Transfer Ratio (CTR) bin. Verify pinout compatibility and isolation voltage ratings before substitution.
