MCT2VM Equivalent & Substitute Parts

Part Overview

The MCT2VM is an optoisolator transistor with base output manufactured by onsemi, designed for high-voltage isolation applications requiring 7500Vpk isolation rating. This component integrates a single channel optoisolator with transistor output and base connection in a 6-DIP package. The MCT2VM is currently listed as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity.

Substiute Parts

MCT2VM

onsemiIn Stock: 1117MCT2VM Datasheet

Current PartRFQ

MCT2EM

onsemiIn Stock: 3886MCT2EM Datasheet

Parametric EquivalentRFQ

MCT2

onsemiIn Stock: 2029MCT2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MCT2VM is determined by the following critical parameters that must remain constant or compatible:

Primary Substitution Criteria:

• Voltage - Isolation: 7500Vpk (minimum requirement for equivalent functionality)
• Number of Channels: 1
• Output Type: Transistor with Base
• Package / Case: 6-DIP (0.300", 7.62mm)
• Current Transfer Ratio (Min): 20% @ 10mA
• Voltage - Output (Max): 30V
• Current - Output / Channel: 50mA
• Vce Saturation (Max): 400mV

Parametric Equivalent Classification: Parts meeting all primary substitution criteria with identical electrical and mechanical specifications are classified as parametric equivalents. The MCT2EM meets all these requirements and serves as the direct parametric equivalent.

Similar Part Classification: Parts with the same base product number (MCT2) but differing isolation voltage or timing characteristics are classified as similar parts. These may be considered only when isolation voltage requirements can be reduced or when application-specific timing parameters permit deviation.

Parameter Comparison

Engineering Selection Recommendations

MCT2EM - Recommended Parametric Equivalent: The MCT2EM is the direct parametric equivalent for MCT2VM replacement. It maintains identical electrical specifications including 7500Vpk isolation voltage, current transfer ratio, output voltage and current ratings, and saturation characteristics. The MCT2EM is currently in active product status, ensuring long-term availability and supply chain continuity. The MCT2EM is RoHS3 compliant, providing enhanced environmental compliance compared to the obsolete MCT2VM. Both parts share identical 6-DIP through-hole packaging, enabling direct board-level substitution without layout modifications.

MCT2 - Similar Part with Reduced Isolation Voltage: The MCT2 base product is classified as a similar part due to reduced isolation voltage specification (5300Vrms versus 7500Vpk). Selection of MCT2 is permissible only in applications where the lower isolation voltage meets system requirements. The MCT2 exhibits different timing characteristics (1.1µs turn-on, 50µs turn-off) compared to MCT2VM specifications, requiring application-level validation. The MCT2 is currently obsolete, limiting its suitability for new designs or long-term production support.

Frequently Asked Questions (FAQ)

Q: Can MCT2EM be used as a direct replacement for MCT2VM? A: Yes. The MCT2EM is a parametric equivalent with identical isolation voltage (7500Vpk), current transfer ratio, output specifications, and 6-DIP package. Direct substitution is supported without circuit modifications.

Q: What is the primary difference between MCT2VM and MCT2EM? A: The MCT2EM is the active production variant of the same part. Both share identical electrical and mechanical specifications. The MCT2EM offers improved supply availability and RoHS3 compliance.

Q: Can MCT2 replace MCT2VM? A: MCT2 is not a direct equivalent. It features reduced isolation voltage (5300Vrms) and different timing characteristics. Substitution is only valid if application requirements permit lower isolation voltage operation.

Q: Are there packaging differences between MCT2VM and MCT2EM? A: No. Both parts use identical 6-DIP (0.300", 7.62mm) through-hole packaging. Board-level compatibility is maintained.

Q: What compliance certifications apply to MCT2EM? A: MCT2EM is RoHS3 compliant and REACH unaffected. Both MCT2VM and MCT2EM carry EAR99 ECCN classification.

Q: Is MCT2VM still available for purchase? A: MCT2VM is listed as obsolete. MCT2EM is the recommended active alternative with current inventory availability.