IL207AT Optoisolator Transistor with Base - Equivalent & Substitute Parts

Part Overview

The IL207AT is an active optoisolator manufactured by Vishay Semiconductor Opto Division, designed for galvanic isolation applications requiring 4000Vrms isolation voltage. This single-channel optoisolator features transistor output with base connection in an 8-SOIC surface mount package. The part is in active production status with 142,400 units in current inventory. Substitute parts are identified based on matching isolation voltage, channel configuration, output type, package form factor, and operating temperature range compatibility.

Substiute Parts

IL207AT

Vishay Semiconductor Opto DivisionIn Stock: 142453IL207AT Datasheet

Current PartRFQ

IL1207AT

Vishay Semiconductor Opto DivisionIn Stock: 8253IL1207AT Datasheet

DirectRFQ

VO207AT

Vishay Semiconductor Opto DivisionIn Stock: 6383VO207AT Datasheet

MFR RecommendedRFQ

MOC207M

onsemiIn Stock: 13529MOC207M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IL207AT are classified based on the following substitution criteria:

Primary Substitution Criteria (Must Match):

• Isolation voltage: 4000Vrms or higher
• Number of channels: 1
• Output type: Transistor with Base
• Package: 8-SOIC surface mount
• Input type: DC

Secondary Compatibility Factors:

• Current transfer ratio range (100% - 200% @ 10mA)
• Vce saturation specification (400mV maximum)
• RoHS3 compliance and MSL rating
• Operating temperature range overlap

Parts meeting these criteria are suitable for direct substitution in applications where the IL207AT is specified.

Parameter Comparison

Engineering Selection Recommendations

IL1207AT (Vishay): Direct substitute with identical electrical specifications and 4000Vrms isolation. Extended upper operating temperature limit to 110°C provides additional thermal margin. Packaging format differs (Tape & Reel vs. Cut Tape). Suitable for applications requiring higher temperature operation within the -55°C to 110°C range.

VO207AT (Vishay): Direct substitute with 4000Vrms isolation and matching electrical characteristics. Rise and fall time specifications are provided (3µs, 2µs). Operating temperature range limited to -40°C to 100°C. Suitable for applications not requiring extended low-temperature operation below -40°C.

MOC207M (onsemi): Partial substitute with reduced isolation voltage (2500Vrms) and maximum output voltage (30V). Not suitable for applications requiring 4000Vrms isolation or output voltages exceeding 30V. Higher output current capability (150mA) and slower switching times (7.5µs turn-on, 5.7µs turn-off) distinguish this part. Selection requires confirmation that 2500Vrms isolation meets application requirements.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical Vce saturation specification (400mV maximum).

Frequently Asked Questions (FAQ)

Q: Can IL1207AT replace IL207AT in all applications? A: IL1207AT is electrically equivalent with identical 4000Vrms isolation and current transfer ratio specifications. The primary difference is packaging format (Tape & Reel vs. Cut Tape) and extended upper operating temperature to 110°C. Substitution is valid for applications operating within -55°C to 110°C range.

Q: What is the key limitation of MOC207M as a substitute? A: MOC207M features 2500Vrms isolation voltage, which is 1500Vrms lower than IL207AT. Additionally, maximum output voltage is limited to 30V compared to 70V for IL207AT. MOC207M is suitable only for applications where 2500Vrms isolation and 30V output voltage are acceptable.

Q: Are all substitute parts available in the same package? A: All substitute parts use 8-SOIC surface mount package with identical 0.154" (3.90mm) width. Packaging format (Cut Tape, Tape & Reel, or Box) differs but does not affect electrical compatibility or PCB footprint.

Q: What operating temperature range should be considered for substitution? A: IL207AT operates from -55°C to 100°C. IL1207AT extends to 110°C. VO207AT and MOC207M are limited to -40°C to 100°C. Substitution is valid only when the substitute part's temperature range encompasses the application's operating requirements.

Q: Do all substitute parts meet the same compliance standards? A: All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) rating. REACH status is unaffected for all parts. Compliance certifications are equivalent across all options.