MCT2ES(TA)-V Equivalent & Substitute Parts

Part Overview

The MCT2ES(TA)-V is an optoisolator transistor with base output manufactured by Everlight Electronics Co Ltd. This component provides galvanic isolation up to 5000Vrms with a single channel configuration in a 6-SMD surface mount package. The device is classified as Active product status with full RoHS3 compliance and MSL Level 1 rating, indicating unlimited moisture sensitivity tolerance suitable for standard manufacturing environments. Substitute parts are identified when equivalent functional performance can be achieved within the specified electrical and mechanical parameter ranges for this optoisolator category.

Substiute Parts

MCT2ES(TA)-V

Everlight Electronics Co LtdIn Stock: 976MCT2ES(TA)-V Datasheet

Current PartRFQ

MCT2ESM

Fairchild SemiconductorIn Stock: 5374MCT2ESM Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCT2ES(TA)-V is determined by the following critical parameters:

Isolation Voltage: The main part specifies 5000Vrms isolation. Substitute parts must maintain isolation voltage at or above this threshold to ensure equivalent galvanic separation in the application circuit.

Channel Configuration: Single channel (1 channel) is the baseline requirement. Substitute parts must match this configuration.

Output Type: Transistor with Base output is mandatory. This output topology determines circuit compatibility and cannot be altered in substitution.

Current Transfer Ratio: Minimum 20% @ 10mA establishes the optical coupling efficiency baseline. Substitute parts must meet or exceed this specification.

Switching Speed: Turn On/Turn Off time of 3µs typical defines the response characteristics. Substitute parts with equal or faster switching performance are acceptable.

Package / Case: 6-SMD, Gull Wing surface mount package is required for mechanical and thermal compatibility.

Operating Temperature Range: -55°C to 110°C defines the thermal operating envelope. Substitute parts must cover this range or a subset that includes the application's operating conditions.

Compliance: RoHS3 compliance and MSL Level 1 rating are mandatory for supply chain and manufacturing process compatibility.

The MCT2ESM from Fairchild Semiconductor qualifies as a substitute based on these parameters.

Parameter Comparison

Engineering Selection Recommendations

MCT2ES(TA)-V (Primary Selection): This component is the specified part with Active product status. It provides 5000Vrms isolation with an operating temperature range of -55°C to 110°C. RoHS3 compliance and MSL Level 1 rating confirm suitability for standard manufacturing and storage conditions. Current inventory of 903 pieces supports immediate availability.

MCT2ESM (Substitute Selection): This component qualifies as a functional substitute with the following considerations:

Isolation voltage is specified as 7500Vpk, which exceeds the 5000Vrms requirement of the main part. Both components share identical current transfer ratio (20% @ 10mA), forward voltage characteristics (1.23V vs 1.25V), and saturation voltage (400mV). Switching performance of the MCT2ESM is superior with 2µs turn-on/off times compared to 3µs for the main part.

The operating temperature range of the MCT2ESM is -40°C to 100°C, which is narrower than the main part's -55°C to 110°C range. Selection of this substitute requires verification that the application's operating conditions fall within -40°C to 100°C.

Maximum output voltage differs: MCT2ES(TA)-V supports 80V while MCT2ESM supports 30V. Applications requiring output voltages above 30V must use the main part.

Both components use identical 6-SMD, Gull Wing surface mount packaging and DC input type, ensuring mechanical and electrical compatibility at the board level. Current inventory of 5300 pieces for the MCT2ESM supports availability.

Frequently Asked Questions (FAQ)

Q: Can MCT2ESM replace MCT2ES(TA)-V in all applications?

A: No. The MCT2ESM has a narrower operating temperature range (-40°C to 100°C versus -55°C to 110°C) and lower maximum output voltage (30V versus 80V). Substitution is valid only when the application operates within -40°C to 100°C and requires output voltages not exceeding 30V.

Q: What is the difference between 5000Vrms and 7500Vpk isolation specifications?

A: These use different measurement standards. 5000Vrms is the RMS (root mean square) voltage rating, while 7500Vpk is the peak voltage rating. The MCT2ESM's higher isolation specification exceeds the main part's requirement, providing additional isolation margin.

Q: Are the switching speeds compatible between these parts?

A: Yes. The MCT2ESM has faster switching times (2µs turn-on/off, 2µs/1.5µs rise/fall) compared to the main part (3µs turn-on/off, 3µs rise/fall). Faster switching is generally compatible with circuits designed for the main part's speed.

Q: Do both parts use the same package?

A: Yes. Both MCT2ES(TA)-V and MCT2ESM use 6-SMD, Gull Wing surface mount packaging, ensuring identical PCB footprint and mounting compatibility.

Q: What is the significance of RoHS3 compliance for this component?

A: RoHS3 compliance indicates the component meets Restriction of Hazardous Substances regulations, confirming the absence of restricted materials (lead, cadmium, mercury, etc.). This is mandatory for most commercial and industrial applications and supply chain requirements.

Q: Why is MSL Level 1 important?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited moisture sensitivity tolerance. The component does not require special moisture control during storage or handling, simplifying logistics and manufacturing processes compared to higher MSL ratings.

Q: Can I use MCT2ESM if my application requires -55°C operation?

A: No. The MCT2ESM's minimum operating temperature is -40°C. For applications requiring -55°C operation, the MCT2ES(TA)-V must be used.

Q: What is the current transfer ratio and why does it matter?

A: Current transfer ratio (CTR) of 20% @ 10mA means that for every 10mA of input LED current, the output transistor conducts 2mA. Both parts share this specification, ensuring equivalent optical coupling efficiency and circuit performance.