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EL817(S)(B)(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)：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)(TB)-G is a transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features a single channel with an infrared emitting diode and an NPN phototransistor. The device provides a high isolation voltage of 5000 Vrms between input and output. It operates within a temperature range of -55°C to +110°C. The component is RoHS compliant and halogen-free. Key electrical parameters include a maximum collector-emitter voltage of 35V, a maximum forward current of 60mA, and a typical rise/fall time of 4µs/3µs.
Feature Summary
- High isolation voltage capability between input and output circuits
- Compact surface-mount package design for automated assembly
- Compliance with international safety standards including UL and VDE approvals
Applications
- Signal transmission between circuits of different potentials
- Telecommunication equipment interfaces
- System appliances and measuring instruments
Procurement Notes
Verify the specific suffix configuration against the official datasheet to ensure correct lead spacing and tape-and-reel type. Confirm RoHS compliance status and safety certification numbers required for your region. Check for obsolescence notices as this part number may have lifecycle variations. Ensure the supplier provides original manufacturer documentation for quality assurance.
Selection Notes
Select this component when surface-mount technology is required for signal isolation in compact designs. The NPN phototransistor output suits digital switching applications. Consider the CTR range and isolation voltage requirements relative to the system's noise immunity needs. Verify thermal management capabilities given the wide operating temperature range.
Part Context
This part belongs to the EL817 series of photocouplers from Everlight. The series includes through-hole and surface-mount variants with different lead configurations. The SMD version utilizes a 4-SMD package suitable for reflow soldering processes. It serves as a general-purpose optoisolator for industrial and consumer electronics.
Replacement Considerations
Check for direct pin-compatible substitutes within the same family such as EL817(S)(C)(TB)-G or EL817(S)(A)(TB)-G. Verify that alternative parts meet the same isolation voltage and current transfer ratio specifications. Ensure the replacement maintains the required safety certifications for the final application.
