EL8178FIZ-T7

Product Overview

Category: Optocoupler
Use: Signal isolation and voltage level shifting
Characteristics: High-speed, high-gain, low-power consumption
Package: SOP-4
Essence: Phototransistor output optocoupler
Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Input Current: 5 mA
• Collector-Emitter Voltage: 80 V
• Collector Current: 50 mA
• Power Dissipation: 100 mW
• Isolation Voltage: 3750 Vrms
• Rise Time: 18 µs
• Fall Time: 15 µs

Detailed Pin Configuration

The EL8178FIZ-T7 optocoupler has a total of four pins:

1. Pin 1: Anode (A)
2. Pin 2: Cathode (K)
3. Pin 3: Collector (C)
4. Pin 4: Emitter (E)

Functional Features

• High-speed response time for efficient signal transmission
• Phototransistor output provides electrical isolation between input and output circuits
• Low power consumption for energy-efficient operation
• Compact SOP-4 package for space-saving designs
• Wide operating temperature range (-40°C to +85°C) for versatile applications

Advantages and Disadvantages

Advantages: - High-speed performance enables quick data transfer - Electrical isolation protects sensitive components from voltage spikes - Low power consumption reduces energy costs - Compact package allows for flexible integration in various systems - Wide operating temperature range ensures reliability in extreme conditions

Disadvantages: - Limited maximum collector-emitter voltage may restrict certain applications - Not suitable for high-power or high-voltage applications

Working Principles

The EL8178FIZ-T7 optocoupler utilizes a phototransistor to achieve signal isolation and voltage level shifting. When an input current is applied to the LED (Anode and Cathode pins), it emits light that activates the phototransistor. The collector-emitter circuit of the phototransistor provides electrical isolation between the input and output circuits. This allows for safe transmission of signals and voltage level shifting.

Detailed Application Field Plans

The EL8178FIZ-T7 optocoupler finds applications in various fields, including:

1. Industrial Automation: Signal isolation in PLCs, motor control circuits, and power supply modules.
2. Telecommunications: Voltage level shifting in communication interfaces, such as RS-232 and RS-485.
3. Automotive Electronics: Isolation of control signals in automotive systems, such as ABS and airbag modules.
4. Medical Equipment: Protection of sensitive components from high voltages in medical devices.
5. Consumer Electronics: Signal isolation in audio amplifiers, power adapters, and home automation systems.

Detailed and Complete Alternative Models

1. EL817C: Phototransistor output, DIP-4 package
2. PC817: Phototransistor output, SOP-4 package
3. TLP621: Photocoupler with phototransistor output, DIP-4 package
4. SFH620A: Phototransistor output, SOP-4 package
5. PS2501-1: Phototransistor output, DIP-4 package

These alternative models offer similar functionality and can be considered as substitutes for the EL8178FIZ-T7 optocoupler.

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