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EL817(S)(B)(TU)-VG
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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)(TU)-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode optically coupled to an NPN phototransistor in a surface-mount 4-SMD package. The device provides high isolation voltage of 5000 Vrms between input and output circuits. Key electrical parameters include a maximum collector-emitter voltage of 35 V, a maximum collector current of 50 mA, and a typical rise/fall time of 4 µs/3 µs. It operates within a temperature range of -55°C to +110°C.
Feature Summary
- Provides electrical isolation between input and output circuits using an infrared LED and NPN phototransistor configuration.
- Features high isolation voltage capability for safe signal transmission between circuits with different potentials.
- Designed for surface-mount assembly in a compact 4-SMD form factor.
Applications
- Signal transmission between circuits of different potentials
- Telecommunication equipment interfaces
- Measuring instruments
Procurement Notes
Verify the specific suffix (S)(B)(TU)-VG against official Everlight documentation to confirm surface-mount type, CTR binning, and tape-and-reel packaging details. Ensure compatibility with RoHS and halogen-free requirements if specified for the target application. Cross-reference datasheet revision dates to confirm parameter stability.
Selection Notes
Select this component when surface-mount technology is required for single-channel isolation applications. Consider the 5000 Vrms isolation rating and operating temperature range up to 110°C. Verify that the NPN phototransistor output characteristics and current transfer ratio meet the circuit design specifications compared to through-hole alternatives.
Part Context
This part belongs to the EL817 series of photocouplers from Everlight Electronics. The series includes various packages such as DIP-4 and SMD options, with different lead spacing and CTR grades. The EL817 series is widely used for general-purpose isolation in industrial and consumer electronics.
Replacement Considerations
Direct pin-compatible replacements may include other EL817 variants or generic 4-pin transistor output optocouplers. Verify isolation voltage, CTR, and package dimensions before substitution. Consult Everlight's official cross-reference guides for approved equivalents.
