CQ220-16N Equivalent & Substitute Parts

Part Overview

The CQ220-16N is an internally triggered TRIAC manufactured by Central Semiconductor Corp, rated for 800 V off-state voltage and 16 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 production continuity. The internally triggered configuration distinguishes this part from standard TRIAC designs, requiring substitutes that maintain electrical compatibility within the specified parameter ranges.

Substiute Parts

CQ220-16N

Central Semiconductor CorpIn Stock: 1164CQ220-16N Datasheet

Current PartRFQ

BTA08-800CRG

STMicroelectronicsIn Stock: 3640BTA08-800CRG Datasheet

MFR RecommendedRFQ

MAC16NG

Littelfuse Inc.In Stock: 1368MAC16NG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CQ220-16N is determined by the following critical parameters:

• Voltage - Off State: Must equal 800 V to maintain circuit voltage ratings
• Current - On State (It (RMS)) (Max): Must be ≥ 16 A to support the original current specification
• Package / Case: Must be TO-220-3 or compatible TO-220 variant for mechanical fit
• Operating Temperature Range: Must encompass -40°C ~ 125°C (TJ)
• Configuration: Must be Single configuration
• Mounting Type: Must be Through Hole

The substitute parts listed below meet these electrical and mechanical requirements. The transition from internally triggered to standard TRIAC types is acceptable where the electrical parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

MAC16NG (Littelfuse Inc.) is the primary substitute for the CQ220-16N. This part matches the on-state current specification at 16 A, maintains 800 V off-state voltage, and is housed in the compatible TO-220-3 package. The MAC16NG is active in production with ROHS3 compliance and meets all electrical parameter requirements.

BTA08-800CRG (STMicroelectronics) is a secondary option where current requirements can be reduced to 8 A maximum. This part maintains 800 V voltage rating and TO-220-3 packaging but provides half the on-state current capacity of the original CQ220-16N. Selection of this part requires circuit analysis to confirm that 8 A on-state current is sufficient for the application.

Both substitute parts are active products with current manufacturing support and regulatory compliance, eliminating obsolescence risk associated with the CQ220-16N.

Frequently Asked Questions (FAQ)

Q: Can the BTA08-800CRG replace the CQ220-16N in all applications?

A: The BTA08-800CRG has a maximum on-state current of 8 A, compared to the CQ220-16N's 16 A rating. It is suitable only for applications where the circuit current does not exceed 8 A. Verify circuit current requirements before selection.

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

A: The CQ220-16N is internally triggered, while both substitute parts are standard TRIACs. Both types function as electronic switches for AC circuits. The electrical parameters provided determine functional compatibility in the circuit.

Q: Are the substitute parts mechanically compatible with the CQ220-16N?

A: Yes. Both BTA08-800CRG and MAC16NG use the TO-220-3 package, which provides identical pin configuration and mounting footprint to the CQ220-16N. Through-hole mounting is supported on standard PCB layouts.

Q: Do the substitute parts meet current regulatory requirements?

A: Yes. Both MAC16NG and BTA08-800CRG are ROHS3 compliant and carry REACH Unaffected status, meeting current environmental and regulatory standards. The CQ220-16N, being obsolete, may not meet current compliance requirements for new designs.

Q: What is the impact of lower gate trigger voltage on the substitute parts?

A: The substitute parts have lower maximum gate trigger voltages (1.3 V for BTA08-800CRG and 1.5 V for MAC16NG) compared to the CQ220-16N (2.5 V). Lower gate trigger voltage indicates easier gate activation and is not a limitation for substitution; it represents an improvement in gate sensitivity.