MCT66G Equivalent & Substitute Parts

Part Overview

The MCT66G is an optoisolator with transistor output manufactured by Isocom Components 2004 LTD. This component provides galvanic isolation with a 5300Vrms rating across 2 channels in an 8-DIP package. The device is currently in active production status with 972 units available in stock. Alternative part numbers may be required due to supply chain constraints, regional availability, or inventory fluctuations.

Substiute Parts

MCT66G

Isocom Components 2004 LTDIn Stock: 1021MCT66G Datasheet

Current PartRFQ

MCT66XG

Isocom Components 2004 LTDIn Stock: 1012MCT66XG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCT66G is determined by strict equivalence across the following critical parameters:

• Number of Channels: 2
• Voltage - Isolation: 5300Vrms
• Current Transfer Ratio (Min): 6% @ 10mA
• Output Type: Transistor
• Voltage - Output (Max): 30V
• Current - Output / Channel: 50mA
• Vce Saturation (Max): 400mV
• Operating Temperature: -25°C ~ 100°C
• Package / Case: 8-DIP (0.400", 10.16mm)
• Mounting Type: Through Hole

The MCT66XG meets all specified parameters and qualifies as a parametric equivalent within the MCT66 series.

Parameter Comparison

Engineering Selection Recommendations

Both MCT66G and MCT66XG are active production components manufactured by Isocom Components 2004 LTD with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability or supply chain requirements. Both parts maintain ROHS3 compliance and are suitable for applications requiring 5300Vrms isolation with dual-channel transistor output in 8-DIP through-hole packages.

Frequently Asked Questions (FAQ)

Q: Can MCT66XG be used as a direct replacement for MCT66G? A: Yes. The MCT66XG is a parametric equivalent with identical electrical characteristics, isolation voltage, channel configuration, output specifications, and 8-DIP package dimensions.

Q: Are there differences in performance between MCT66G and MCT66XG? A: No. Both parts share identical specifications for isolation voltage (5300Vrms), current transfer ratio (6% @ 10mA), output voltage (30V max), output current (50mA per channel), and saturation voltage (400mV max).

Q: Do both parts use the same package footprint? A: Yes. Both MCT66G and MCT66XG use the 8-DIP (0.400", 10.16mm) through-hole package with identical pin configurations and mounting requirements.

Q: Are there compliance or certification differences? A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.49.8000).

Q: What is the operating temperature range for both parts? A: Both MCT66G and MCT66XG operate across -25°C to 100°C.