EL8173FSZ-T7

Product Overview

Category

EL8173FSZ-T7 belongs to the category of optocouplers or optoisolators.

Use

Optocouplers are electronic components used for isolating electrical circuits. They provide electrical isolation between input and output, allowing signals to be transferred without direct electrical connection.

Characteristics

• Optocouplers consist of an LED (light-emitting diode) and a phototransistor or photodiode.
• They can transmit signals across different voltage potentials, providing galvanic isolation.
• Optocouplers offer high noise immunity and can withstand high voltages.
• They are commonly used in applications where electrical isolation is required, such as in power supplies, motor control, and communication systems.

Package

EL8173FSZ-T7 is available in a small outline package (SOP) with 4 pins.

Essence

The essence of EL8173FSZ-T7 lies in its ability to provide electrical isolation and signal transmission between two circuits.

Packaging/Quantity

EL8173FSZ-T7 is typically packaged in reels or tubes, with a quantity of 2500 units per reel.

Specifications

• Input Current: 5 mA
• Forward Voltage: 1.2 V
• Collector-Emitter Voltage: 80 V
• Collector Current: 50 mA
• Isolation Voltage: 3750 Vrms
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

EL8173FSZ-T7 has the following pin configuration:

```

---

| | --+----+-- | | 1| |4 |____| 2 3 ```

Pin 1: Anode (LED) Pin 2: Cathode (LED) Pin 3: Emitter (Phototransistor) Pin 4: Collector (Phototransistor)

Functional Features

• High-speed response time
• Low input current requirement
• High collector-emitter voltage rating
• Compact size for space-constrained applications
• RoHS compliant

Advantages and Disadvantages

Advantages

• Provides electrical isolation between circuits, protecting sensitive components from high voltages or noise.
• Allows signal transmission across different voltage potentials.
• High noise immunity.
• Compact size for easy integration into various electronic systems.

Disadvantages

• Limited maximum collector current compared to other optocouplers.
• May require additional circuitry for optimal performance in certain applications.

Working Principles

EL8173FSZ-T7 operates based on the principle of optoelectronics. When an input current is applied to the LED (pins 1 and 2), it emits light. This light is then detected by the phototransistor (pins 3 and 4), which generates a corresponding output current or voltage. The electrical isolation between the input and output sides is achieved through the absence of direct electrical connection.

Detailed Application Field Plans

EL8173FSZ-T7 finds applications in various fields, including:

1. Power Supplies: Isolating control signals in switch-mode power supplies.
2. Motor Control: Providing isolation between microcontrollers and motor driver circuits.
3. Communication Systems: Transmitting signals between different voltage domains in communication interfaces.
4. Industrial Automation: Isolating control signals in PLCs (Programmable Logic Controllers) and industrial control systems.
5. Medical Devices: Ensuring electrical safety and isolation in medical equipment.

Detailed and Complete Alternative Models

Some alternative models to EL8173FSZ-T7 include:

1. PC817: A widely used general-purpose optocoupler with similar characteristics.
2. HCPL-4503: Optocoupler with higher collector current rating and faster response time.
3. TLP521-4: Optocoupler with 4 channels for multiple signal isolation.

These alternative models offer different specifications and features, allowing users to choose the most suitable option for their specific application requirements.

Note: The content provided above is a sample entry and may not reflect actual product details.