MCT61 Optoisolator Equivalent & Substitute Parts

Part Overview

The MCT61 is a dual-channel optoisolator with transistor output, rated for 5300Vrms isolation voltage. This component is designed for applications requiring galvanic isolation between input and output circuits with DC input control and transistor switching capability. The MCT61 maintains active product status with full RoHS3 compliance and REACH unaffected designation, making it suitable for current industrial and commercial applications. Substitute parts are identified based on matching electrical performance, isolation ratings, channel configuration, and physical packaging specifications.

Substiute Parts

MCT61

Isocom Components 2004 LTDIn Stock: 2585MCT61 Datasheet

Current PartRFQ

MCT61X

Isocom Components 2004 LTDIn Stock: 1066MCT61X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MCT61 is determined by strict equivalence across the following critical parameters:

• Isolation Voltage: 5300Vrms (mandatory match)
• Channel Configuration: 2 channels (mandatory match)
• Output Type: Transistor output (mandatory match)
• Current Transfer Ratio: 50% @ 5mA minimum (mandatory match)
• Maximum Output Voltage: 30V (mandatory match)
• Maximum Output Current per Channel: 50mA (mandatory match)
• Vce Saturation: 400mV maximum (mandatory match)
• Package Type: 8-DIP through-hole (mandatory match)
• Operating Temperature Range: -25°C ~ 100°C (mandatory match)
• Compliance: RoHS3 compliant, REACH unaffected (mandatory match)

The MCT61X is identified as a parametric equivalent based on identical electrical specifications and physical packaging. Packaging format variation (tube vs. standard) does not affect functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both MCT61 and MCT61X are active products with identical electrical and mechanical specifications. Selection between these parts is based on supply chain availability and packaging format preference:

• MCT61: Standard packaging format, 2510 units in stock
• MCT61X: Tube packaging format, 1052 units in stock

Both parts maintain full RoHS3 compliance and REACH unaffected status, ensuring regulatory compatibility for current industrial applications. The identical electrical performance, isolation rating, channel configuration, and physical package dimensions guarantee direct functional interchangeability in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can MCT61X replace MCT61 in existing designs? A: Yes. MCT61X is a parametric equivalent with identical electrical specifications, isolation voltage, channel configuration, output characteristics, and 8-DIP package dimensions. Direct substitution is supported without circuit modification.

Q: What is the difference between MCT61 and MCT61X? A: The primary difference is packaging format. MCT61 uses standard packaging while MCT61X uses tube packaging. All electrical and mechanical parameters are identical.

Q: Are both parts RoHS3 compliant? A: Yes. Both MCT61 and MCT61X are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What determines substitution eligibility for optoisolators? A: For the MCT61 series, substitution requires matching isolation voltage (5300Vrms), channel count (2), output type (transistor), current transfer ratio (50% @ 5mA minimum), maximum output voltage (30V), maximum output current per channel (50mA), saturation voltage (400mV maximum), package type (8-DIP through-hole), operating temperature range (-25°C ~ 100°C), and compliance certifications.

Q: Can these parts be used in high-temperature applications? A: The operating temperature range for both MCT61 and MCT61X is -25°C to 100°C. Applications requiring operation outside this range require alternative components.

Q: What is the isolation voltage rating? A: Both MCT61 and MCT61X provide 5300Vrms isolation voltage between input and output circuits.

Q: Are these parts suitable for DC input applications? A: Yes. Both MCT61 and MCT61X are specified for DC input type with transistor output configuration.