MCT52113S Equivalent & Substitute Parts

Part Overview

The MCT52113S is an optoisolator transistor with base output manufactured by onsemi, designed for high-voltage isolation applications requiring 5300Vrms isolation rating. This component features a single-channel configuration with transistor output and integrated base connection, suitable for DC input applications. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MCT52113S

onsemiIn Stock: 651MCT52113S Datasheet

Current PartRFQ

MCT5210SM

Fairchild SemiconductorIn Stock: 4651MCT5210SM Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCT52113S is determined by the following critical parameters:

• Isolation Voltage: Minimum 5300Vrms required for equivalent isolation performance
• Output Configuration: Transistor with base output mandatory for circuit compatibility
• Number of Channels: Single-channel configuration required
• Output Voltage Rating: Maximum 30V or higher
• Output Current Capacity: Minimum 150mA per channel
• Vce Saturation: Maximum 400mV or lower for switching performance
• Package Type: 6-SMD, Gull Wing surface mount configuration
• Input Type: DC input requirement

The MCT5210SM from Fairchild Semiconductor meets the core functional requirements for substitution, with the exception of isolation voltage rating, which is specified at 4170Vrms compared to the 5300Vrms of the MCT52113S.

Parameter Comparison

Engineering Selection Recommendations

The MCT5210SM is available as an active product from Fairchild Semiconductor with current inventory support, addressing the obsolescence status of the MCT52113S. Both components share identical mechanical packaging, electrical output characteristics, and thermal operating ranges within the upper temperature limit.

The primary technical distinction is the isolation voltage rating: the MCT5210SM provides 4170Vrms isolation compared to the MCT52113S specification of 5300Vrms. This 1130Vrms reduction in isolation capability must be evaluated against the specific isolation requirements of the target application. Applications requiring the full 5300Vrms isolation margin cannot use the MCT5210SM as a direct substitute.

Both components carry identical ECCN (EAR99) and HTSUS (8541.49.8000) classifications, supporting equivalent regulatory compliance for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can the MCT5210SM replace the MCT52113S in all applications?

A: The MCT5210SM is functionally compatible for applications where the isolation voltage requirement does not exceed 4170Vrms. Applications specifically designed for 5300Vrms isolation margin require verification that the reduced isolation rating remains acceptable for the intended circuit environment and safety standards.

Q: Are the package dimensions identical between these components?

A: Both components use 6-SMD, Gull Wing surface mount packaging. PCB footprints and reflow soldering profiles are compatible without modification.

Q: What is the impact of the different current transfer ratios?

A: The MCT52113S specifies 150% CTR minimum at 1.6mA input current, while the MCT5210SM specifies 70% CTR minimum at 3mA input current. Circuit designs must account for these different gain characteristics when calculating input drive requirements and output switching performance.

Q: Does the lower operating temperature minimum of the MCT5210SM affect compatibility?

A: The MCT5210SM operates from -40°C minimum compared to the MCT52113S at -55°C minimum. Applications requiring operation below -40°C cannot use the MCT5210SM.

Q: Are there compliance or certification differences between these components?

A: Both components carry identical ECCN and HTSUS classifications. Verify specific application certifications (UL, IEC, etc.) required by your end-use application, as these may impose additional constraints beyond component-level specifications.