Q2025L6 Equivalent & Substitute Parts

Part Overview

The Q2025L6 is a Snubberless TRIAC Alternistor manufactured by Littelfuse Inc., rated for 200 V off-state voltage and 25 A on-state current in a TO-220-3 Isolated Tab package. This component is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

The primary reason for seeking substitutes is the discontinued status of the Q2025L6. Active alternatives with compatible electrical and mechanical specifications enable system continuity without redesign.

Substiute Parts

Q2025L6

Littelfuse Inc.In Stock: 881Q2025L6 Datasheet

Current PartRFQ

BTA24-600BWRG

STMicroelectronicsIn Stock: 10233BTA24-600BWRG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Q2025L6 is determined by the following critical parameters:

• Current Rating: On-state current must be 25 A or greater to maintain load-carrying capacity
• Voltage Rating: Off-state voltage must be 200 V or greater to ensure adequate voltage margin
• Gate Trigger Characteristics: Vgt and Igt must remain within compatible ranges to preserve gate drive circuit design
• Package Compatibility: TO-220 form factor with isolated tab configuration ensures mechanical and thermal interface compatibility
• Temperature Range: Operating range must encompass -40°C to 125°C
• Regulatory Compliance: RoHS3 compliance required for environmental and supply chain standards

The BTA24-600BWRG meets all substitution criteria. While its 600 V off-state rating exceeds the Q2025L6 specification, this represents a voltage uprating that maintains full backward compatibility. The 25 A current rating, gate trigger parameters, temperature range, and TO-220 package are directly compatible.

Parameter Comparison

Engineering Selection Recommendations

The BTA24-600BWRG is an active product from STMicroelectronics with established supply availability (10,200 pcs in stock). It carries ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements.

The voltage uprating from 200 V to 600 V does not compromise circuit function in applications designed for 200 V operation. The reduced gate trigger and hold currents (50 mA and 75 mA respectively, versus 80 mA and 100 mA) represent improved performance characteristics that reduce gate drive circuit loading.

Selection of the BTA24-600BWRG eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing designs using the Q2025L6.

Frequently Asked Questions (FAQ)

Q: Can the BTA24-600BWRG directly replace the Q2025L6 without circuit modification?

A: Yes. The BTA24-600BWRG maintains equivalent current rating, gate trigger voltage, operating temperature range, and TO-220 package configuration. The higher voltage rating provides additional margin without affecting circuit operation.

Q: What is the significance of the voltage uprating from 200 V to 600 V?

A: The 600 V rating of the BTA24-600BWRG provides greater voltage margin in applications originally designed for 200 V operation. This uprating does not degrade performance and is a standard substitution practice in TRIAC selection.

Q: Are the gate trigger current differences between the Q2025L6 and BTA24-600BWRG significant?

A: The BTA24-600BWRG requires lower gate trigger current (50 mA maximum versus 80 mA). This represents improved gate sensitivity and reduces demands on the gate drive circuit. Existing gate drive designs will operate within specification.

Q: Is the TO-220-3 package of the BTA24-600BWRG mechanically compatible with the Q2025L6 TO-220-3 Isolated Tab?

A: Both components use the TO-220-3 form factor with isolated tab configuration. Pin spacing, lead geometry, and thermal interface are compatible for direct board-level substitution.

Q: What is the inventory status of the BTA24-600BWRG?

A: The BTA24-600BWRG is an active product with 10,200 pcs available in stock, ensuring reliable procurement compared to the obsolete Q2025L6.