CQ220-8MFP Equivalent & Substitute Parts

Part Overview

The CQ220-8MFP is an internally triggered TRIAC manufactured by Central Semiconductor Corp, rated for 600 V off-state voltage and 8 A on-state current in a TO-220-3 through-hole package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning. Substitute parts must maintain electrical compatibility across voltage, current, and thermal operating ranges while accommodating the through-hole mounting configuration.

Substiute Parts

CQ220-8MFP

Central Semiconductor CorpIn Stock: 725CQ220-8MFP Datasheet

Current PartRFQ

TMA86S-L

Sanken Electric USA Inc.In Stock: 39630TMA86S-L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CQ220-8MFP is determined by the following critical electrical and mechanical parameters:

• Voltage Rating: Off-state voltage must be 600 V or greater
• Current Rating: On-state current (It (RMS)) must be 8 A or greater
• Gate Trigger Voltage (Vgt): Maximum 2.5 V ensures gate drive compatibility
• Gate Trigger Current (Igt): Maximum 50 mA defines gate circuit requirements
• Hold Current (Ih): Maximum 25 mA establishes minimum holding conditions
• Operating Temperature: -40°C to 125°C junction temperature range
• Package Configuration: TO-220-3 through-hole mounting required for mechanical fit
• Triac Type: Internally triggered or standard TRIAC configurations acceptable

The TMA86S-L meets these substitution criteria with equivalent voltage and current ratings, compatible gate trigger specifications, and identical through-hole packaging.

Parameter Comparison

Engineering Selection Recommendations

The TMA86S-L is a direct functional equivalent for the CQ220-8MFP based on matching voltage and current ratings, compatible gate trigger characteristics, and identical through-hole TO-220-3 packaging. The TMA86S-L exhibits lower gate trigger voltage (1.5 V vs. 2.5 V maximum) and lower gate trigger current (30 mA vs. 50 mA maximum), both of which are advantageous for gate drive circuit design and reduce control circuit complexity.

The TMA86S-L carries RoHS Compliant status, providing regulatory advantage over the obsolete CQ220-8MFP. Both components share identical ECCN (EAR99) and HTSUS (8541.30.0080) classifications, confirming trade compliance equivalence. The TMA86S-L is available in significantly higher inventory (39,593 pcs) compared to the CQ220-8MFP (615 pcs), supporting long-term procurement reliability.

Frequently Asked Questions (FAQ)

Q: Can the TMA86S-L directly replace the CQ220-8MFP in existing designs?

A: Yes. Both components share identical voltage (600 V), current (8 A), operating temperature (-40°C to 125°C), and TO-220-3 through-hole packaging specifications. The TMA86S-L's lower gate trigger voltage and current are compatible with existing gate drive circuits.

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

A: The CQ220-8MFP is internally triggered, while the TMA86S-L is a standard TRIAC. Both types function as equivalent switching devices in AC power control applications. The distinction affects internal gate circuit design but does not impact external circuit compatibility when electrical parameters match.

Q: Are there mechanical considerations when substituting these components?

A: No. Both components use identical TO-220-3 full pack through-hole configuration, ensuring direct mechanical compatibility on printed circuit boards without modification to mounting hardware or PCB layout.

Q: What does RoHS Compliant status mean for the TMA86S-L?

A: RoHS Compliance indicates the TMA86S-L meets Restriction of Hazardous Substances regulations, restricting lead, cadmium, mercury, and other hazardous materials. This provides regulatory advantage for applications subject to environmental compliance requirements.

Q: How do gate trigger specifications affect circuit design?

A: Gate trigger voltage (Vgt) and current (Igt) define the minimum control signal required to switch the TRIAC. The TMA86S-L's lower specifications (1.5 V, 30 mA vs. 2.5 V, 50 mA) reduce gate drive circuit power requirements and may improve noise immunity in control applications.