MCT2ES(TB) Equivalent & Substitute Parts

Part Overview

The MCT2ES(TB) 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 transistor output 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.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across isolation voltage, switching characteristics, output voltage ratings, and package specifications. The MCT2ES(TB) maintains active inventory of 743 pieces in stock.

Substiute Parts

MCT2ES(TB)

Everlight Electronics Co LtdIn Stock: 845MCT2ES(TB) Datasheet

Current PartRFQ

MCT2ESM

Fairchild SemiconductorIn Stock: 5374MCT2ESM Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCT2ES(TB) is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Output configuration must be Transistor with Base
• Package must be 6-SMD, Gull Wing surface mount
• Input type must be DC
• Current Transfer Ratio minimum must be 20% @ 10mA or greater
• Vce Saturation maximum must not exceed 400mV

Allowable Parameter Variations:

• Isolation voltage may exceed 5000Vrms (higher isolation is acceptable)
• Maximum output voltage may differ from 80V (component-dependent)
• Switching times (turn on/off, rise/fall) may be faster than specified
• Operating temperature range may be narrower or wider
• Forward voltage (Vf) and forward current (If) specifications may vary within component design tolerances

The MCT2ESM from Fairchild Semiconductor qualifies as a substitute based on matching output configuration, package type, input type, and maintaining equivalent or superior electrical performance in isolation voltage, current transfer ratio, and saturation characteristics.

Parameter Comparison

Engineering Selection Recommendations

MCT2ES(TB) Primary Selection:

• Use when Everlight Electronics supply chain is preferred
• Active product status with 743 pieces in current inventory
• Full RoHS3 compliance and MSL Level 1 rating
• Operating temperature range -55°C to 110°C supports extended industrial applications
• Maximum output voltage rating of 80V accommodates higher voltage switching applications

MCT2ESM Substitute Selection:

• Use when Fairchild Semiconductor supply chain is required or preferred
• Active product status with 5300 pieces in current inventory
• Faster switching characteristics (2µs turn on/off vs 3µs) suitable for higher frequency applications
• Maximum output voltage rating of 30V limits application to lower voltage switching circuits
• Operating temperature range -40°C to 100°C is narrower than primary part
• Both parts maintain identical current transfer ratio (20% @ 10mA) and Vce saturation (400mV)

Critical Selection Factor: The MCT2ESM substitute has a maximum output voltage of 30V compared to the MCT2ES(TB) at 80V. Applications requiring output voltage switching above 30V must use the MCT2ES(TB). Applications operating within 30V maximum output voltage may use either part based on supply availability and switching speed requirements.

Frequently Asked Questions (FAQ)

Q: Can MCT2ESM replace MCT2ES(TB) in all applications?

A: No. The MCT2ESM has a maximum output voltage rating of 30V, while the MCT2ES(TB) is rated to 80V. The MCT2ESM can only substitute in applications where the output voltage does not exceed 30V. Verify your circuit's maximum output voltage requirement before selecting the substitute.

Q: What are the key electrical differences between these parts?

A: Both parts maintain identical current transfer ratio (20% @ 10mA minimum) and Vce saturation (400mV maximum). The MCT2ESM offers faster switching times (2µs vs 3µs for turn on/off). The MCT2ES(TB) provides higher isolation voltage (5000Vrms vs 7500Vpk) and higher maximum output voltage (80V vs 30V). The MCT2ESM has a narrower operating temperature range (-40°C to 100°C vs -55°C to 110°C).

Q: Are the packages identical?

A: Yes. Both MCT2ES(TB) and MCT2ESM use 6-SMD, Gull Wing surface mount packages. PCB footprints and reflow soldering profiles are compatible.

Q: Which part should I select for new designs?

A: For new designs, verify your application's maximum output voltage requirement. If output voltage exceeds 30V, use MCT2ES(TB). If output voltage is 30V or below and faster switching is beneficial, MCT2ESM is acceptable. Both parts are active products with full RoHS3 compliance.

Q: What is the isolation voltage difference between these parts?

A: MCT2ES(TB) specifies 5000Vrms isolation. MCT2ESM specifies 7500Vpk isolation. Both provide adequate galvanic isolation for standard industrial applications. The MCT2ESM's higher isolation rating does not create compatibility issues in circuits designed for 5000Vrms isolation.

Q: Are there temperature range limitations with the substitute?

A: Yes. MCT2ESM operating temperature range is -40°C to 100°C, narrower than MCT2ES(TB) at -55°C to 110°C. Applications requiring operation below -40°C or above 100°C must use MCT2ES(TB).