MCT62W Equivalent & Substitute Parts

Part Overview

The MCT62W is a 5000Vrms optoisolator with transistor output, dual-channel configuration, and 8-DIP through-hole packaging manufactured by onsemi. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The MCT62W provides galvanic isolation suitable for applications requiring high voltage isolation with moderate output current capability.

Substiute Parts

MCT62W

onsemiIn Stock: 5805MCT62W Datasheet

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MCT62

onsemiIn Stock: 5247MCT62 Datasheet

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MCT62G

Isocom Components 2004 LTDIn Stock: 724MCT62G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MCT62W optoisolator is determined by the following critical parameters:

• Isolation Voltage: Minimum 5000Vrms required for direct substitution
• Number of Channels: Must be 2-channel configuration
• Output Type: Transistor output required
• Maximum Output Voltage: 30V or greater
• Output Current per Channel: Minimum 30mA required
• Vce Saturation: Maximum 400mV
• Package Type: 8-DIP through-hole mounting
• Input Type: DC input

The MCT62W has two qualified substitutes: MCT62 (onsemi) and MCT62G (Isocom Components 2004 LTD). Both maintain the core functional parameters while differing in specific electrical characteristics and product status.

Parameter Comparison

Engineering Selection Recommendations

MCT62 (onsemi): This substitute is the direct onsemi equivalent with active product status. It maintains identical isolation voltage, current transfer ratio, output voltage, and saturation characteristics. The primary difference is package body length (0.300" versus 0.400"), which may affect PCB layout compatibility. This part is ROHS3 compliant and suitable for new designs requiring onsemi sourcing.

MCT62G (Isocom Components 2004 LTD): This substitute offers enhanced isolation voltage (5300Vrms) and higher output current capability (50mA per channel). It maintains the 0.400" package dimension matching the MCT62W. Operating temperature range is reduced to -25°C ~ 100°C. This part is ROHS3 compliant and provides superior electrical performance for applications requiring higher output current or enhanced isolation margin.

Both substitutes are active products with REACH compliance and EAR99 classification matching the original MCT62W.

Frequently Asked Questions (FAQ)

Q: Can MCT62 replace MCT62W directly on existing PCBs? A: MCT62 is electrically compatible but has a shorter package body (0.300" versus 0.400"). PCB layout verification is required to confirm pin-to-pin spacing compatibility with existing through-hole footprints.

Q: What is the key difference between MCT62 and MCT62G? A: MCT62G provides higher isolation voltage (5300Vrms versus 5000Vrms) and greater output current per channel (50mA versus 30mA). MCT62G maintains the 0.400" package dimension of the MCT62W. Operating temperature minimum is -25°C for MCT62G versus -55°C for MCT62.

Q: Is MCT62G suitable for low-temperature applications? A: MCT62G operates from -25°C minimum. Applications requiring operation below -25°C must use MCT62 or MCT62W, which operate to -55°C.

Q: Are all three parts RoHS compliant? A: MCT62W status is not specified. MCT62 and MCT62G are both ROHS3 compliant.

Q: Can I use MCT62G in place of MCT62W for higher output current requirements? A: Yes. MCT62G provides 50mA per channel output current versus 30mA for MCT62W, making it suitable for applications requiring higher drive capability while maintaining all other critical parameters.

Q: What packaging format is available for these optoisolators? A: MCT62W and MCT62G are supplied in 8-DIP through-hole packages. MCT62 is supplied in Tube packaging. All three use 8-DIP configuration with different body lengths.