MOC207M Equivalent & Substitute Parts

Part Overview

The MOC207M is an optoisolator transistor with base output manufactured by onsemi, designed for applications requiring galvanic isolation up to 2500Vrms. This single-channel device integrates an LED input stage with a transistor output stage, providing DC input isolation with transistor-based switching capability. The MOC207M is classified as an active product with full RoHS3 compliance and unlimited moisture sensitivity rating, making it suitable for industrial and consumer applications requiring reliable isolation performance.

Substitute parts are identified when equivalent functional performance can be achieved within the allowed electrical and mechanical parameters of the optoisolator category, specifically matching the 8-SOIC surface mount package and maintaining compatibility with standard isolation and switching requirements.

Substiute Parts

MOC207M

onsemiIn Stock: 13529MOC207M Datasheet

Current PartRFQ

VO207AT

Vishay Semiconductor Opto DivisionIn Stock: 6383VO207AT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MOC207M is determined by the following criteria:

• Package compatibility: 8-SOIC surface mount form factor with 0.154" (3.90mm) width
• Output stage type: Transistor with base configuration
• Single-channel isolation architecture
• Input type: DC
• Current transfer ratio range: minimum 100% and maximum 200% at 10mA input current
• Operating temperature range: -40°C to 100°C
• Compliance status: RoHS3 and REACH requirements

The VO207AT from Vishay Semiconductor Opto Division meets all mechanical and functional compatibility requirements. While the VO207AT provides enhanced isolation voltage (4000Vrms versus 2500Vrms) and faster switching times, these represent performance improvements rather than deviations from the allowed parameter set. The substitute maintains identical current transfer ratio specifications, package dimensions, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both MOC207M and VO207AT are active products with full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications.

The MOC207M provides 150mA maximum output current capability with 30V maximum output voltage rating. The VO207AT offers higher isolation voltage (4000Vrms) and faster switching response (3µs turn-on and turn-off times versus 7.5µs and 5.7µs), with trade-offs including reduced output current capacity (50mA) and higher maximum output voltage (70V).

Selection between these parts depends on application-specific requirements: choose MOC207M for applications requiring higher output current delivery within 30V constraints; choose VO207AT for applications requiring enhanced isolation voltage margin or faster switching performance with lower output current demands.

Frequently Asked Questions (FAQ)

Q: Can VO207AT directly replace MOC207M in existing designs?

A: Mechanical compatibility is confirmed—both use 8-SOIC surface mount packages with identical pin spacing. Functional compatibility requires circuit-level evaluation. The VO207AT's reduced output current (50mA versus 150mA) and higher output voltage rating (70V versus 30V) may affect circuit behavior. Verify that your application does not exceed 50mA output current requirements before substitution.

Q: What are the key differences in switching performance?

A: The VO207AT provides faster switching times (3µs turn-on/off versus 7.5µs/5.7µs for MOC207M). This improvement may reduce propagation delay in high-frequency switching applications but does not affect DC isolation performance or current transfer ratio specifications.

Q: Are both parts suitable for industrial temperature ranges?

A: Both parts operate across -40°C to 100°C, meeting standard industrial temperature requirements. No derating is required within this range for either device.

Q: Does the higher isolation voltage of VO207AT affect pin compatibility?

A: No. Both parts maintain identical 8-SOIC pinout and package dimensions. The isolation voltage difference is an internal design characteristic that does not affect mechanical or electrical interface compatibility at the package level.

Q: What packaging formats are available for production quantities?

A: MOC207M is supplied in Box packaging; VO207AT is supplied in Tape & Reel format. Confirm packaging requirements with your procurement process before finalizing substitution decisions.