MAC210A10 TRIAC 800V 10A Equivalent & Substitute Parts

Part Overview

The MAC210A10 is a standard TRIAC thyristor rated for 800V off-state voltage and 10A on-state current in a TO-220AB through-hole package. Manufactured by onsemi, this component is classified as obsolete. Due to its obsolete status and limited availability from the original manufacturer, identifying equivalent and substitute parts is necessary for ongoing system maintenance, design updates, and supply chain continuity.

Substiute Parts

MAC210A10

onsemiIn Stock: 960MAC210A10 Datasheet

Current PartRFQ

MAC210A10G

LittelfuseIn Stock: 933MAC210A10G Datasheet

DirectRFQ

BT138-800,127

WeEn SemiconductorsIn Stock: 7095BT138-800,127 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAC210A10 is determined by the following critical parameters:

• Voltage - Off State: Must be 800V or higher
• Current - On State: Must be rated for 10A or higher
• Package / Case: Must be TO-220-3 for mechanical and thermal compatibility
• Mounting Type: Must be through-hole
• Gate trigger characteristics: Vgt and Igt must be within acceptable operating ranges for the application circuit

Two substitute categories are identified:

Direct Equivalent (MAC210A10G): Identical electrical specifications with improved product status and compliance.

Similar Substitute (BT138-800,127): Higher current rating (12A) with compatible voltage and package specifications, suitable for applications where increased current capacity is acceptable.

Parameter Comparison

Engineering Selection Recommendations

MAC210A10G (Littelfuse) is the primary substitute. It maintains identical electrical specifications to the MAC210A10 while offering active product status and ROHS3 compliance. This part is recommended for direct replacement in existing designs without circuit modification.

BT138-800,127 (WeEn Semiconductors) is a compatible alternative with higher current capacity (12A vs. 10A). This part is suitable for applications where increased current margin is beneficial. The lower gate trigger voltage (1.5V vs. 2V) and lower gate trigger current (35mA vs. 50mA) may require circuit evaluation to confirm compatibility with existing gate drive circuits. This part also offers ROHS3 compliance and active product status.

Both substitute parts maintain the TO-220-3 package and through-hole mounting configuration, ensuring mechanical and thermal compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can MAC210A10G be used as a direct replacement for MAC210A10?

A: Yes. MAC210A10G is electrically identical to MAC210A10 with matching voltage, current, and gate trigger specifications. The primary advantage is active product status and ROHS3 compliance.

Q: What are the differences between MAC210A10 and BT138-800,127?

A: BT138-800,127 has a higher on-state current rating (12A vs. 10A), lower gate trigger voltage (1.5V vs. 2V), and lower gate trigger current (35mA vs. 50mA). Both share the same 800V off-state voltage and TO-220-3 package. The lower gate trigger parameters may affect gate drive circuit compatibility.

Q: Are all substitute parts in the same package?

A: Yes. MAC210A10, MAC210A10G, and BT138-800,127 are all housed in TO-220-3 packages with through-hole mounting, ensuring mechanical compatibility with existing PCB layouts.

Q: Which substitute part should be selected for new designs?

A: MAC210A10G is recommended for new designs requiring direct electrical equivalence. BT138-800,127 is suitable when higher current capacity and lower gate trigger requirements are acceptable for the application.

Q: Are the substitute parts RoHS compliant?

A: MAC210A10G and BT138-800,127 are both ROHS3 compliant. The original MAC210A10 is RoHS non-compliant.