Q6016RH4TP TRIAC Alternistor 600V 16A Equivalent & Substitute Parts

Part Overview

The Q6016RH4TP is a Littelfuse TRIAC Alternistor (Snubberless) rated for 600V off-state voltage and 16A on-state current in a TO-220AB through-hole package. This component is classified as Active product status with full RoHS3 compliance. Equivalent and substitute parts are identified based on matching electrical characteristics, package compatibility, and thermal operating ranges to ensure direct functional replacement in AC switching applications.

Key Parameters

Parameter	Q6016RH4TP
Manufacturer	Littelfuse
Voltage - Off State	600 V
Current - On State (It RMS Max)	16 A
Triac Type	Alternistor - Snubberless
Voltage - Gate Trigger (Vgt Max)	1.3 V
Current - Gate Trigger (Igt Max)	35 mA
Current - Hold (Ih Max)	50 mA
Current - Non Rep. Surge (50/60Hz)	167A / 200A
Operating Temperature Range	-40°C to 125°C (TJ)
Package / Case	TO-220-3
Mounting Type	Through Hole
RoHS Status	RoHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria applied strictly to the provided parameters:

Primary Matching Criteria:

Voltage - Off State: 600V (exact match required)
Package / Case: TO-220-3 (mechanical compatibility)
Mounting Type: Through Hole (board assembly compatibility)
Configuration: Single (functional equivalence)

Secondary Electrical Criteria:

Current - On State (It RMS Max): Equal to or greater than 16A
Triac Type: Alternistor - Snubberless preferred for direct replacement; Logic - Sensitive Gate acceptable with gate parameter verification
Operating Temperature Range: Minimum -40°C to 125°C or compatible subset
RoHS3 Compliance: Required for regulatory equivalence

Gate Trigger Parameters (Application-Dependent):

Voltage - Gate Trigger (Vgt Max): 1.3V to 1.5V range acceptable
Current - Gate Trigger (Igt Max): 10mA to 50mA range acceptable
Current - Hold (Ih Max): 25mA to 50mA range acceptable

Substitute parts meeting all primary criteria and at least one secondary electrical criterion are classified as equivalent or compatible alternatives.

Parameter Comparison

Part Number	Manufacturer	Voltage - Off State	Current - On State (It RMS Max)	Triac Type	Vgt Max	Igt Max	Ih Max	Operating Temp Range	Package	RoHS3
Q6016RH4TP	Littelfuse	600V	16A	Alternistor - Snubberless	1.3V	35mA	50mA	-40°C to 125°C	TO-220-3	Yes
BTA20-600CWRG	STMicroelectronics	600V	20A	Alternistor - Snubberless	1.5V	35mA	50mA	-40°C to 125°C	TO-220-3	Yes
BT139-600E,127	WeEn Semiconductors	600V	16A	Logic - Sensitive Gate	1.5V	10mA	45mA	0°C to 125°C	TO-220-3	Yes
BTB08-600CWRG	STMicroelectronics	600V	8A	Alternistor - Snubberless	1.3V	35mA	35mA	-40°C to 125°C	TO-220-3	Yes
BTB08-600BWRG	STMicroelectronics	600V	8A	Alternistor - Snubberless	1.3V	50mA	50mA	-40°C to 125°C	TO-220-3	Yes
BTB06-600BWRG	STMicroelectronics	600V	6A	Alternistor - Snubberless	1.3V	50mA	50mA	-40°C to 125°C	TO-220-3	Yes
BTB06-600CRG	STMicroelectronics	600V	6A	Standard	1.3V	25mA	25mA	-40°C to 125°C	TO-220-3	Yes
AVS12CB	STMicroelectronics	600V	12A	Internally Triggered	N/A	N/A	N/A	0°C to 125°C	TO-220-3	Yes
BTB04-600SL	STMicroelectronics	600V	4A	Logic - Sensitive Gate	1.3V	10mA	15mA	-40°C to 125°C	TO-220-3	Yes
BTB08-600BRG	STMicroelectronics	600V	8A	Standard	1.3V	50mA	50mA	-40°C to 125°C	TO-220-3	Yes
BTB08-600CRG	STMicroelectronics	600V	8A	Standard	1.3V	25mA	25mA	-40°C to 125°C	TO-220-3	Yes

Engineering Selection Recommendations

Direct Equivalent (Preferred): BTA20-600CWRG (STMicroelectronics) is the primary equivalent. It matches the Alternistor - Snubberless type, exceeds the 16A current rating at 20A, maintains 600V voltage specification, and covers the full -40°C to 125°C operating range. Gate trigger parameters (Vgt 1.5V, Igt 35mA) fall within acceptable tolerance of the original specification.

Compatible Alternative (Same Current Rating): BT139-600E,127 (WeEn Semiconductors) provides 16A on-state current matching the original part. The Logic - Sensitive Gate type offers lower gate trigger current (10mA vs. 35mA), which may reduce gate drive requirements. Operating temperature range is 0°C to 125°C, narrower than the original -40°C specification. This part is suitable for applications not requiring sub-zero operation.

Lower Current Alternatives (Downrating Applications): BTB08-600CWRG, BTB08-600BWRG, BTB08-600CRG, BTB08-600BRG, BTB06-600BWRG, and BTB06-600CRG are suitable only for applications where load current does not exceed their respective ratings (8A or 6A). These parts maintain 600V voltage and TO-220-3 package compatibility but represent current derating.

Internally Triggered Type: AVS12CB (STMicroelectronics) is an Internally Triggered TRIAC with 12A rating. This type eliminates external gate drive requirements but operates within 0°C to 125°C range. Selection requires confirmation that internal triggering meets application requirements.

Lower Current Sensitive Gate Type: BTB04-600SL (STMicroelectronics) is a Logic - Sensitive Gate TRIAC rated 4A. This part is suitable only for low-current applications and represents significant current derating from the original 16A specification.

All substitute parts maintain RoHS3 compliance and Active product status, ensuring regulatory equivalence and supply continuity.

Frequently Asked Questions (FAQ)

Q: Can BTA20-600CWRG directly replace Q6016RH4TP in all applications? A: BTA20-600CWRG is the primary equivalent. It matches the Alternistor - Snubberless type, exceeds current rating (20A vs. 16A), and maintains voltage and temperature specifications. The higher current rating provides design margin. Gate trigger parameters (Vgt 1.5V vs. 1.3V, Igt 35mA match) are within acceptable range. Verification of gate drive circuit compatibility is recommended for sensitive applications.

Q: What is the difference between Alternistor - Snubberless and Logic - Sensitive Gate types? A: Alternistor - Snubberless TRIACs are optimized for AC switching without external snubber networks, offering robust EMI performance. Logic - Sensitive Gate TRIACs require lower gate trigger current (10mA vs. 35mA) and are suitable for microcontroller-driven applications. Selection depends on gate drive circuit design and EMI requirements.

Q: Can I use BTB08-600CWRG as a substitute if my application only requires 8A? A: BTB08-600CWRG is suitable only if application load current does not exceed 8A. This represents a 50% current derating from the original 16A specification. The part maintains Alternistor - Snubberless type, 600V voltage, and -40°C to 125°C operating range. Use only when load current is confirmed below 8A maximum.

Q: Does BT139-600E,127 work in applications requiring -40°C operation? A: BT139-600E,127 operates within 0°C to 125°C range, which excludes sub-zero operation. This part is not suitable for applications requiring -40°C minimum temperature. Use only in applications where minimum operating temperature is 0°C or higher.

Q: Are all substitute parts available in the same TO-220-3 package? A: All listed substitute parts use TO-220-3 package with through-hole mounting, ensuring mechanical and board-level compatibility with the original Q6016RH4TP. No package conversion or adapter is required.

Q: What is the significance of the Current - Non Rep. Surge rating? A: Non-repetitive surge current (Itsm) defines the maximum transient current the TRIAC can withstand during power-on or fault conditions. Q6016RH4TP is rated 167A (50Hz) / 200A (60Hz). Substitute parts with equal or higher Itsm ratings provide equivalent transient protection. Lower Itsm ratings may require additional circuit protection.

Q: Can I use AVS12CB (Internally Triggered) in place of Q6016RH4TP? A: AVS12CB is an Internally Triggered TRIAC that eliminates external gate drive requirements. This type is suitable only if application design does not require external gate control. The 12A rating is lower than the original 16A specification. Operating temperature range is 0°C to 125°C, excluding sub-zero operation. Use only when internal triggering meets application requirements.

Q: What compliance certifications apply to all substitute parts? A: All listed substitute parts maintain RoHS3 compliance, REACH Unaffected status, and ECCN EAR99 classification, matching the regulatory profile of Q6016RH4TP. All parts are classified as Active product status, ensuring supply continuity and manufacturer support.

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