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Name: EL817(S)(C)(TB)-VG
Brand: Everlight Electronics Co Ltd
SKU: EL817(S)(C)(TB)-VG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Everlight Electronics Co Ltd EL817(S)(C)(TB)-VG

Part No.:: EL817(S)(C)(TB)-VG

Manufacturer:: Everlight Electronics Co Ltd

Package:: 4-SMD, Gull Wing

Datasheet:: EL817(S)(C)(TB)-VG.pdf

Description:: OPTOISOLTR 5KV TRANSISTOR 4-SMD

In Stock:: 2948

Quantity:: Add To Cart

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EL817(S)(C)(TB)-VG Specifications

Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Discontinued at Mosen
NumberofChannels:
1
Voltage-Isolation:
5000Vrms
CurrentTransferRatio(Min):
200% @ 5mA
CurrentTransferRatio(Max):
400% @ 5mA
TurnOn/TurnOffTime(Typ):
-
Rise/FallTime(Typ):
6µs, 8µs
InputType:
DC
OutputType:
Transistor
Voltage-Output(Max):
80V
Current-Output/Channel:
50mA
Voltage-Forward(Vf)(Typ):
1.2V
Current-DCForward(If)(Max):
60 mA
VceSaturation(Max):
200mV
OperatingTemperature:
-55°C ~ 110°C
MountingType:
Surface Mount

EL817(S)(C)(TB)-VG this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including EL817(S)(C)(TB)-VG price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for EL817(S)(C)(TB)-VG to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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EL817(S)(C)(TB)-VG information

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EL817(S)(C)(TB)-VG Typical application Circuitry

EL817(S)(C)(TB)-VG

The EL817(S)(C)(TB)-VG is a type of optocoupler, also known as an optoisolator, which is commonly used in electrical circuits to transfer electrical signals between two isolated circuits through light, ensuring that no electrical current directly flows between the input and output.

Application Scenario: Isolated UART Communication

A practical application for the EL817(S)(C)(TB)-VG is in isolated UART (Universal Asynchronous Receiver/Transmitter) communication, where it is used to protect communication between two devices, such as a microcontroller and a computer, from potential ground loops and voltage spikes that could damage the devices.

Parameter Features

Key parameters of the EL817(S)(C)(TB)-VG include:

- Isolation Voltage: This indicates the maximum voltage that can be isolated between the input and output sides, ensuring the protection of low-voltage circuits from high-voltage spikes.

- Current Transfer Ratio (CTR): The ratio of the output photocurrent to the input LED current, which is critical for understanding how efficiently the optocoupler can transmit signals.

- Forward Current: The maximum current the input LED can handle, which is important to prevent damage to the LED.

- Collector-Emitter Voltage: The maximum voltage that the output phototransistor can withstand, which is crucial for ensuring the phototransistor does not break down under high voltage conditions.

Circuit Connection Details

For isolated UART communication using the EL817(S)(C)(TB)-VG, the circuit connections would be as follows:

1. Input Side Connection: Connect the TX (transmit) line of the UART from the microcontroller to the anode of the EL817(S)(C)(TB)-VG LED. To safeguard the LED, the cathode is connected via a current-limiting resistor to the ground of the microcontroller circuit.

2. Output Side Connection: Connect the collector of the EL817(S)(C)(TB)-VG phototransistor to the RX (receive) line of the UART on the computer side.The computer circuit's ground is linked to the emitter.

3. Current-Limiting Resistor: A resistor is placed in series with the LED to limit the current to a safe value that ensures the LED is sufficiently illuminated without being damaged.

4. Pull-Up Resistor: A pull-up resistor may be connected between the collector of the phototransistor and the positive supply voltage on the computer side to ensure that the UART RX line is properly biased when the phototransistor is not conducting.

Design Considerations

When designing circuits with the EL817(S)(C)(TB)-VG, it is essential to consider:

- Resistor Values: Choosing the correct value for the current-limiting resistor and the pull-up resistor is crucial to ensure proper LED illumination and reliable signal transmission through the phototransistor.

- Data Rate Compatibility: The switching speed of the EL817(S)(C)(TB)-VG must be compatible with the baud rate of the UART communication to ensure that the optocoupler can accurately transmit the signals without introducing significant delays.

- Isolation Requirements: The isolation voltage rating of the EL817(S)(C)(TB)-VG should be sufficient to protect against the maximum potential voltage differences expected in the application.

- CTR Variation: Since the CTR can vary with temperature and forward current, it's important to design the circuit to accommodate these variations, ensuring consistent performance across the operating conditions.

Incorporating the EL817(S)(C)(TB)-VG in an isolated UART communication circuit involves careful consideration of electrical characteristics, signal integrity requirements, and environmental conditions to ensure effective isolation and reliable communication between devices.

EL817(S)(C)(TB)-VG FAQ

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6. What is the process for return or replacement of EL817(S)(C)(TB)-VG?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the EL817(S)(C)(TB)-VG we delivered, we will accept the replacement or return of the EL817(S)(C)(TB)-VG only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of EL817(S)(C)(TB)-VG.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations