MCT2EW Equivalent & Substitute Parts

Part Overview

The MCT2EW is an optoisolator transistor with base output manufactured by onsemi, designed for high-voltage isolation applications. This component features a 5300Vrms isolation rating and single-channel transistor output configuration in a 6-DIP package. The MCT2EW is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MCT2EW

onsemiIn Stock: 707MCT2EW Datasheet

Current PartRFQ

MCT2EG

Isocom Components 2004 LTDIn Stock: 992MCT2EG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCT2EW is determined by strict alignment of the following critical parameters:

• Package compatibility: 6-DIP (0.400", 10.16mm) form factor for direct board-level replacement
• Output configuration: Transistor with base output topology
• Number of channels: Single-channel operation
• Operating temperature range: -55°C ~ 100°C
• Isolation voltage: Minimum 5300Vrms to maintain system safety margins
• Output voltage rating: Maximum 30V
• Vce saturation: Maximum 400mV for switching performance
• Input type: DC operation

The MCT2EG from Isocom Components 2004 LTD qualifies as a substitute based on matching package, output type, channel count, temperature range, output voltage rating, and saturation characteristics. However, the MCT2EG exhibits different isolation voltage specification (7.5Vpk versus 5300Vrms), current transfer ratio (50% @ 10mA versus 20% @ 10mA), and output current capability (unspecified versus 50mA), which must be evaluated within specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The MCT2EG represents the primary substitute for the obsolete MCT2EW based on matching mechanical and electrical interface parameters. The MCT2EG maintains active product status with onsemi, ensuring continued availability and supply chain stability. Both components share identical package geometry, output configuration, and operating temperature specifications, enabling direct board-level substitution without layout modifications.

The MCT2EG demonstrates ROHS3 compliance, providing environmental regulatory alignment for new designs and legacy system updates. Both components carry REACH Unaffected status and EAR99 classification, maintaining consistent export and regulatory compliance profiles.

Frequently Asked Questions (FAQ)

Q: Can the MCT2EG directly replace the MCT2EW without circuit modifications?

A: The MCT2EG shares identical package geometry (6-DIP), output configuration (transistor with base), and operating temperature range (-55°C ~ 100°C), enabling direct pin-compatible substitution. However, application-specific evaluation of isolation voltage requirements, current transfer ratio differences, and output current specifications is necessary before implementation.

Q: What are the key differences between MCT2EW and MCT2EG?

A: The primary differences are isolation voltage specification (MCT2EW: 5300Vrms versus MCT2EG: 7.5Vpk), current transfer ratio (MCT2EW: 20% @ 10mA versus MCT2EG: 50% @ 10mA), and output current rating (MCT2EW: 50mA versus MCT2EG: not specified). The MCT2EG is active product status while MCT2EW is obsolete.

Q: Are there packaging or mounting considerations for substitution?

A: Both components utilize 6-DIP (0.400", 10.16mm) through-hole packaging with identical pin configurations, eliminating packaging-related substitution barriers. Standard through-hole soldering processes apply to both variants.

Q: What compliance certifications apply to the MCT2EG?

A: The MCT2EG carries ROHS3 compliance and REACH Unaffected status, with EAR99 export classification. These certifications align with modern regulatory requirements for electronic component procurement and system integration.