MCT6-X009 Equivalent & Substitute Parts

Part Overview

The MCT6-X009 is a 2-channel optoisolator with transistor output manufactured by Vishay Semiconductor Opto Division. This component provides 5300Vrms isolation voltage in an 8-SMD surface mount package. The part is currently in Last Time Buy status, making identification of equivalent and substitute parts essential for design continuity and procurement planning. Substitute parts maintain functional compatibility while offering alternative sourcing options and, in some cases, improved availability or performance characteristics.

Substiute Parts

MCT6-X009

Vishay Semiconductor Opto DivisionIn Stock: 776MCT6-X009 Datasheet

Current PartRFQ

MCT6S

onsemiIn Stock: 5989MCT6S Datasheet

MFR RecommendedRFQ

MCT6SD

onsemiIn Stock: 1886MCT6SD Datasheet

MFR RecommendedRFQ

MCT6SM

Isocom Components 2004 LTDIn Stock: 918MCT6SM Datasheet

MFR RecommendedRFQ

MCT6SMT&R

Isocom Components 2004 LTDIn Stock: 1151MCT6SMT&R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MCT6-X009 are qualified based on the following critical parameters that determine functional compatibility:

• Number of Channels: Must be 2
• Output Type: Must be Transistor
• Package / Case: Must be 8-SMD, Gull Wing
• Mounting Type: Must be Surface Mount
• Voltage - Isolation: Minimum 5000Vrms (MCT6-X009 specifies 5300Vrms)
• Current Transfer Ratio (Min): Minimum 20% @ 10mA
• Voltage - Output (Max): Minimum 30V
• Vce Saturation (Max): Maximum 400mV
• RoHS Status: ROHS3 Compliant

The substitute parts are grouped into two categories based on isolation voltage and output current capability:

Group 1 (onsemi MCT6S / MCT6SD): 5000Vrms isolation voltage, 30mA output current per channel. These parts meet the minimum isolation requirement with equivalent electrical performance.

Group 2 (Isocom MCT6SM / MCT6SMT&R): 5300Vrms isolation voltage matching the main part, with 50mA output current per channel, providing enhanced current capability.

Parameter Comparison

Engineering Selection Recommendations

MCT6S (onsemi, Tube Packaging)

This part is suitable for applications where the 5000Vrms isolation voltage meets system requirements. The onsemi MCT6S offers faster switching performance (2.4µs turn-on/off versus 3µs for the MCT6-X009) and maintains all critical electrical parameters. Active product status ensures long-term availability. Tube packaging matches the original part format.

MCT6SD (onsemi, Tape & Reel Packaging)

Functionally identical to MCT6S with identical electrical specifications. The Tape & Reel packaging format is suitable for high-volume automated assembly processes. Active product status and ROHS3 compliance support production continuity.

MCT6SM (Isocom, Tube Packaging)

This part matches the MCT6-X009 isolation voltage specification (5300Vrms) and provides enhanced output current capability (50mA per channel versus 30mA). Tube packaging aligns with the original format. Operating temperature range is -25°C to 100°C, which is narrower than the MCT6-X009 (-55°C to 100°C). Active product status supports ongoing procurement.

MCT6SMT&R (Isocom, Tape & Reel Packaging)

Electrically identical to MCT6SM with Tape & Reel packaging for automated assembly. Maintains 5300Vrms isolation voltage and 50mA output current per channel. Suitable for high-volume production environments requiring tape format delivery.

Frequently Asked Questions (FAQ)

Q: Can MCT6S or MCT6SD be used as direct replacements for MCT6-X009?

A: Yes. Both parts meet the functional requirements with 5000Vrms isolation voltage, 2-channel configuration, 30mA output current per channel, and identical package format. The 300Vrms reduction in isolation voltage (from 5300Vrms to 5000Vrms) remains within acceptable margins for most applications. Verify system isolation requirements before selection.

Q: What is the difference between MCT6S and MCT6SD?

A: Both parts are electrically identical. The difference is packaging format: MCT6S is supplied in Tube, while MCT6SD is supplied in Tape & Reel (TR). Select based on assembly process requirements.

Q: Why do MCT6SM and MCT6SMT&R have higher output current ratings?

A: The Isocom parts specify 50mA output current per channel compared to 30mA for the MCT6-X009. This represents enhanced capability and does not affect compatibility. Applications designed for 30mA operation will function correctly with these parts.

Q: Are there temperature range considerations when selecting substitutes?

A: The MCT6-X009 operates from -55°C to 100°C. The onsemi MCT6S and MCT6SD maintain this range. The Isocom MCT6SM and MCT6SMT&R operate from -25°C to 100°C, which is narrower at the low end. Select Isocom parts only if your application does not require operation below -25°C.

Q: What packaging format should I select?

A: Tube packaging (MCT6S, MCT6SM) is suitable for manual assembly and lower-volume applications. Tape & Reel packaging (MCT6SD, MCT6SMT&R) is required for automated pick-and-place assembly in high-volume production. Verify your assembly process requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), matching the MCT6-X009 compliance profile.

Q: Which substitute part offers the best performance improvement?

A: The onsemi MCT6S and MCT6SD provide faster switching times (2.4µs versus 3µs). The Isocom MCT6SM and MCT6SMT&R provide higher output current capability (50mA versus 30mA). Select based on your specific performance requirements.