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ILD207T

Dual phototransistor optocoupler, 4kV isolation, 100-200% CTR, 70V BVCEO, SOIC-8

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Manufacturer Part：

ILD207T

Package：

SOIC-8 (5.3 x 6.1 x 1.65mm, 150mil)

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Description

Product Overview

The ILD207T from Vishay Semiconductors is a dual-channel phototransistor output optocoupler in an SOIC-8 package. It couples a GaAs infrared LED to a silicon NPN phototransistor, providing 4000Vrms isolation, 100-200% CTR at 10mA, 70V BVCEO, and UL1577 approval for signal isolation in high-density surface-mount applications.

Key Specifications

Number of Channels 2 (Dual)
Isolation Voltage 4000Vrms
CTR (Current Transfer Ratio) 100% to 200% @ IF=10mA, VCE=5V
BVCEO (Collector-Emitter Breakdown) 70V
Forward Voltage (VF) 1.2V typ. @ IF=10mA
Forward Current (IF) 30mA max. per channel
VCE(sat) 0.4V max. @ IF=10mA, IC=2.5mA
Rise Time 3μs typ. @ IF=2mA, RL=100Ω
Fall Time 4.7μs typ.
Collector-Emitter Leakage 5nA typ. / 50nA max. @ VCE=10V
Input-Output Capacitance 0.5pF typ.
Package SOIC-8 (150mil)
Operating Temperature -55°C to +100°C
Approvals UL1577, cUL

Features

  • Dual-channel optocoupler in compact SOIC-8 surface-mount package
  • High BVCEO: 70V (vs. 30V industry standard)
  • CTR: 100% to 200% at IF=10mA
  • 4000Vrms isolation test voltage
  • UL1577 and cUL approved
  • Compatible with dual wave, vapor phase, and IR reflow soldering
  • Standard 0.05 inch lead spacing
  • Tape and reel packaging per EIA-481-2

Applications

  • Digital logic signal isolation
  • Power supply feedback loop isolation
  • Motor drive signal coupling
  • Industrial control interface isolation
  • Communications and networking isolation

The ILD207T from Vishay Semiconductors is a dual-channel phototransistor output optocoupler in a standard SOIC-8 surface-mount package. Each channel couples a gallium arsenide infrared LED to a silicon NPN phototransistor, providing electrical isolation of 4000Vrms while transmitting DC or AC signal information. The device features a CTR range of 100% to 200% at IF=10mA, a high BVCEO of 70V (offering greater safety margin than the 30V industry standard), and UL1577/cUL safety approval. The SOIC-8 package is ideal for high-density applications with limited board space.

The ILD207T operates by converting electrical signals to light and back to electrical signals across an isolation barrier. When current flows through the input GaAs infrared LED, it emits infrared radiation that is detected by the silicon NPN phototransistor on the output side. The phototransistor generates a collector current proportional to the LED current, with the ratio defined by the Current Transfer Ratio (CTR). The ILD207T provides 100% to 200% CTR, meaning the output current equals or exceeds the input current at 10mA. The 4000Vrms isolation between input and output is achieved through an optically transparent but electrically insulating dielectric layer. The two channels are electrically independent, allowing simultaneous isolation of two signal paths.

Pin Name Type Function
1 A1 (Anode 1) Input LED 1 anode
2 C1 (Cathode 1) Input LED 1 cathode
3 A2 (Anode 2) Input LED 2 anode
4 C2 (Cathode 2) Input LED 2 cathode
5 E2 (Emitter 2) Output Phototransistor 2 emitter
6 C2 (Collector 2) Output Phototransistor 2 collector
7 E1 (Emitter 1) Output Phototransistor 1 emitter
8 C1 (Collector 1) Output Phototransistor 1 collector
  • Switch-mode power supply feedback loop isolation
  • Digital I/O signal isolation in industrial PLCs
  • Motor drive gate signal coupling
  • I2C/SPI bus isolation between voltage domains
  • Medical equipment patient-side isolation
Manufacturer Part Number Package Notes
Vishay ILD206T SOIC-8 63-125% CTR variant
Vishay ILD205T SOIC-8 40-80% CTR variant
onsemi MCT6M DIP-8 Dual optocoupler, through-hole
Everlight EL817B DIP-4 Single channel, 130-260% CTR
Broadcom HCPL-2631 DIP-8 High-speed dual, 10Mbps
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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