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EL817(S1)(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(S1)(B)(TU)-VG is a transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features an infrared emitting diode optically coupled to an NPN phototransistor in a surface-mount SOP-4 package with a 2.54mm lead pitch. The device provides high isolation voltage of 5000 Vrms between input and output circuits. Key electrical parameters include a maximum collector-emitter voltage of 35V, a maximum collector current of 50mA, and a forward current rating of 60mA. The typical rise and fall times are specified at 6 microseconds. The unit operates within a temperature range of -55°C to +110°C and complies with RoHS standards.
Feature Summary
- Provides electrical isolation via optical coupling between input LED and output phototransistor
- Compact surface-mount SOP-4 package design for space-constrained applications
- High insulation voltage capability ensuring safety between isolated circuits
- RoHS compliant construction free from hazardous substances
Applications
- Signal transmission between circuits of different potentials
- Isolation in programmable logic controllers
- Feedback signal isolation in power management systems
Procurement Notes
Verify the specific suffix VG against the manufacturer datasheet to confirm pinout and packaging details. Ensure compatibility with SOP-4 footprint dimensions during PCB layout. Confirm operating temperature requirements align with the specified -55°C to +110°C range. Cross-reference the CTR specifications if precise gain control is required for the application circuit.
Selection Notes
Select this component when surface-mount assembly is preferred over through-hole DIP packages. Consider the 5000 Vrms isolation rating for applications requiring robust galvanic isolation. Evaluate the 6us switching speed against system timing requirements. Verify that the 50mA collector current limit meets the load drive needs of the downstream circuitry.
Part Context
This part belongs to the EL817 series of transistor output optocouplers produced by Everlight. The series includes various package options such as DIP-4 and SMD variants. The EL817 family is widely used for general-purpose signal isolation in industrial and consumer electronics due to its reliability and standardized pin configurations.
Replacement Considerations
Direct substitutes may include other SOP-4 transistor output optocouplers with similar isolation ratings and pinouts. Verify electrical parameter equivalence before substitution. Generic equivalents might require schematic adjustments if pin assignments differ.
