CQ220-10N Equivalent & Substitute Parts

Part Overview

The CQ220-10N is an internally triggered TRIAC manufactured by Central Semiconductor Corp, rated for 800 V off-state voltage and 10 A on-state current in a TO-220-3 through-hole package. This component is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The internally triggered configuration distinguishes this part from standard TRIAC designs, affecting substitution compatibility.

Substiute Parts

CQ220-10N

Central Semiconductor CorpIn Stock: 853CQ220-10N Datasheet

Current PartRFQ

BTA08-800CRG

STMicroelectronicsIn Stock: 3640BTA08-800CRG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CQ220-10N is determined by the following critical parameters:

• Voltage Rating (Off State): Must match or exceed 800 V
• Current Rating (On State): Must support minimum 10 A RMS
• Package Type: Must be TO-220-3 through-hole configuration
• Gate Trigger Characteristics: Vgt and Igt must be compatible with existing circuit design
• Operating Temperature Range: Must accommodate the application's thermal requirements

The BTA08-800CRG qualifies as a substitute based on matching off-state voltage (800 V), through-hole TO-220 mounting, and compatible gate trigger parameters. However, the on-state current rating of 8 A is lower than the original 10 A specification, requiring circuit-level evaluation for current margin adequacy.

Parameter Comparison

Engineering Selection Recommendations

The BTA08-800CRG is available as an active product from STMicroelectronics with established supply chain availability (3542 units in stock), addressing the obsolescence of the CQ220-10N. Both components share identical off-state voltage ratings, hold current specifications, and TO-220-3 through-hole packaging.

The primary design consideration is the reduced on-state current rating of the BTA08-800CRG (8 A versus 10 A). Applications operating near the 10 A maximum specification of the original part require circuit margin analysis to confirm the 8 A rating is adequate. The BTA08-800CRG operates across a wider temperature range (-40°C to 125°C versus -40°C to 110°C), providing additional thermal margin.

The BTA08-800CRG is RoHS3 compliant and carries REACH Unaffected status, matching the regulatory profile of the original part.

Frequently Asked Questions (FAQ)

Q: Can the BTA08-800CRG directly replace the CQ220-10N in all applications?

A: Direct replacement is possible in applications where the circuit current requirement does not exceed 8 A RMS. The matching 800 V off-state voltage, TO-220-3 package, and compatible gate trigger parameters support pin-for-pin substitution. Applications requiring the full 10 A rating require alternative solutions.

Q: What is the functional difference between internally triggered and standard TRIAC types?

A: The CQ220-10N is internally triggered, while the BTA08-800CRG is a standard TRIAC. This affects the gate drive circuit requirements and may impact circuit behavior. Circuit-level validation is necessary when substituting between these types.

Q: Are there package compatibility concerns?

A: Both components use TO-220-3 through-hole packaging with identical pinouts, eliminating package-related compatibility issues. PCB layout and thermal management considerations remain unchanged.

Q: How do the gate trigger specifications compare?

A: The BTA08-800CRG requires lower gate trigger voltage (1.3 V maximum versus 1.5 V) and lower gate trigger current (25 mA maximum versus 50 mA). Existing gate drive circuits designed for the CQ220-10N will operate within the BTA08-800CRG specifications, though gate drive margins are reduced.

Q: What is the supply status difference?

A: The CQ220-10N is obsolete with no ongoing production. The BTA08-800CRG is an active product with established inventory and supply chain support, making it suitable for new designs and production continuity.