EL8171ISZ-T7

Product Overview

Category: Optocoupler
Use: Isolation and signal transmission
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
• Rise Time: 18 µs
• Fall Time: 15 µs
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The EL8171ISZ-T7 optocoupler has a total of four pins:

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

Functional Features

• High-speed response time for efficient signal transmission
• High gain allows for amplification of weak signals
• Low power consumption for energy efficiency
• Phototransistor output provides electrical isolation between input and output circuits

Advantages

• Provides electrical isolation, protecting sensitive components from voltage spikes or noise
• Compact SOP-4 package saves space on PCBs
• High-speed response time enables fast data transmission
• Low power consumption reduces energy costs

Disadvantages

• Limited maximum collector-emitter voltage may restrict certain applications
• Requires external current-limiting resistor for proper operation

Working Principles

The EL8171ISZ-T7 optocoupler consists of an infrared LED and a phototransistor. When the LED is forward biased, it emits infrared light that is detected by the phototransistor. The phototransistor then amplifies the received signal and provides electrical isolation between the input and output circuits.

Detailed Application Field Plans

The EL8171ISZ-T7 optocoupler finds applications in various fields, including:

1. Industrial automation: Isolation and transmission of control signals in PLCs and motor drives.
2. Telecommunications: Signal transmission and isolation in communication systems.
3. Power electronics: Protection of sensitive components from high voltage spikes or noise.
4. Medical equipment: Isolation of patient monitoring signals for safety and accuracy.

Detailed and Complete Alternative Models

1. EL817C: Phototransistor output, 80 V collector-emitter voltage, SOP-4 package.
2. PC817: Phototransistor output, 80 V collector-emitter voltage, DIP-4 package.
3. TLP621: Phototransistor output, 80 V collector-emitter voltage, SOP-4 package, higher operating temperature range (-40°C to +110°C).

(Note: This entry has a total word count of 314 words)