Q6012RH5TP TRIAC Alternistor 600V 12A Equivalent & Substitute Parts

Part Overview

The Q6012RH5TP is a snubberless TRIAC Alternistor manufactured by Littelfuse Inc., rated for 600V off-state voltage and 12A on-state current in a TO-220 through-hole package. This component is designed for AC switching applications requiring gate-controlled bidirectional thyristor functionality. The part is currently active in production with 2242 units in stock inventory.

Equivalent and substitute parts are identified based on matching electrical ratings, mechanical compatibility, and thermal operating ranges. Alternative models may be required due to supply availability, manufacturing lead times, or design optimization for specific application requirements.

Key Parameters

Parameter	Value
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	12 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V
Current - Gate Trigger (Igt) (Max)	50 mA
Current - Hold (Ih) (Max)	50 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	110A, 120A
Operating Temperature Range	-40°C ~ 125°C (TJ)
Package / Case	TO-220-3
Mounting Type	Through Hole
TRIAC Type	Alternistor - Snubberless
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the Q6012RH5TP is determined by the following critical parameters:

Mandatory Matching Criteria:

Voltage - Off State: 600 V
Current - On State (It (RMS)) (Max): 12 A minimum
Package / Case: TO-220-3
Mounting Type: Through Hole
Gate Trigger Voltage (Vgt) (Max): 1.3 V or lower
Gate Trigger Current (Igt) (Max): 50 mA or lower
Hold Current (Ih) (Max): 50 mA or lower
Operating Temperature Range: -40°C ~ 125°C or higher

Acceptable Variations:

TRIAC Type: Both Alternistor - Snubberless and Standard types are functionally compatible
Non-Repetitive Surge Current (Itsm): May vary within manufacturer specifications
Supplier Device Package designation: TO-220 or TO-220AB acceptable

Substitute parts are grouped into three categories based on their relationship to the main part: direct equivalents (matching all parameters), manufacturer-recommended alternatives (higher current ratings), and parametric equivalents (identical electrical specifications with different TRIAC type classification).

Parameter Comparison

Parameter	Q6012RH5TP (Littelfuse)	BTA12-600BRG (STMicroelectronics)	BTB12-600BRG (STMicroelectronics)	BTA316-600BT,127 (WeEn)	BTA12-600BWRG (STMicroelectronics)	BTB12-600BWRG (STMicroelectronics)
Voltage - Off State	600 V	600 V	600 V	600 V	600 V	600 V
Current - On State (It (RMS)) (Max)	12 A	12 A	12 A	16 A	12 A	12 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1.3 V	1.3 V	1.5 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA
Current - Hold (Ih) (Max)	50 mA	50 mA	50 mA	60 mA	50 mA	50 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	110A, 120A	120A, 126A	120A, 126A	140A, 150A	120A, 126A	120A, 126A
Operating Temperature Range	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 150°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
TRIAC Type	Alternistor - Snubberless	Standard	Standard	Standard	Alternistor - Snubberless	Alternistor - Snubberless
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Parametric Equivalents (Preferred for Drop-In Replacement): BTA12-600BWRG and BTB12-600BWRG from STMicroelectronics match all electrical parameters and TRIAC type classification (Alternistor - Snubberless) with the Q6012RH5TP. Both parts are ROHS3 compliant and maintain identical operating temperature ranges. These parts provide the highest compatibility for direct substitution in existing designs.

Standard TRIAC Alternatives (Functional Compatibility): BTA12-600BRG and BTB12-600BRG are Standard-type TRIACs with identical voltage and current ratings. While classified as Standard rather than Snubberless, they meet all mandatory electrical parameters and maintain full TO-220-3 package compatibility. These parts are suitable for applications where TRIAC type distinction does not affect circuit performance.

Higher Current Rating Option (Design Upgrade): BTA316-600BT,127 from WeEn Semiconductors provides 16A on-state current capability compared to the 12A rating of the Q6012RH5TP. This part exceeds the mandatory current requirement and offers enhanced surge current handling (140A, 150A vs. 110A, 120A). The gate trigger voltage is 1.5V maximum, which is within acceptable tolerance for most gate drive circuits. Operating temperature extends to 150°C, providing additional thermal margin. This part is suitable for applications requiring higher current capacity or enhanced thermal performance.

All substitute parts maintain ROHS3 compliance and are classified as active products with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can BTA12-600BRG (Standard TRIAC) replace Q6012RH5TP (Snubberless TRIAC)? A: Yes. Both parts meet the mandatory electrical parameters: 600V off-state voltage, 12A on-state current, 1.3V maximum gate trigger voltage, and TO-220-3 package. The functional difference between Standard and Snubberless types does not prevent substitution in applications where the original design does not specifically require snubberless characteristics.

Q: Is BTA316-600BT,127 a direct replacement for Q6012RH5TP? A: BTA316-600BT,127 is a functional equivalent with enhanced specifications. It maintains 600V voltage rating and TO-220-3 package compatibility but provides 16A on-state current versus 12A. The 1.5V maximum gate trigger voltage is slightly higher than the 1.3V specification. This part is suitable for applications requiring higher current capacity or where the gate drive circuit can accommodate the higher trigger voltage threshold.

Q: What is the difference between BTA12-600BRG and BTB12-600BRG? A: Both parts are Standard-type TRIACs with identical electrical ratings (600V, 12A, 1.3V gate trigger). The primary distinction is in base product number designation (BTA12 vs. BTB12), which reflects different manufacturer product lines. Electrical performance and package compatibility are equivalent.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts (BTA12-600BRG, BTB12-600BRG, BTA316-600BT,127, BTA12-600BWRG, BTB12-600BWRG) are ROHS3 compliant, matching the compliance status of the Q6012RH5TP.

Q: Can I use BTA12-600BWRG in place of Q6012RH5TP without circuit modifications? A: Yes. BTA12-600BWRG is a parametric equivalent with identical electrical specifications and Alternistor - Snubberless classification. No circuit modifications are required for direct substitution.

Q: What is the operating temperature range for substitute parts? A: BTA12-600BRG, BTB12-600BRG, BTA12-600BWRG, and BTB12-600BWRG operate from -40°C to 125°C, matching the Q6012RH5TP. BTA316-600BT,127 extends to 150°C maximum junction temperature, providing additional thermal margin in high-temperature applications.

Q: Are all substitute parts available in TO-220-3 package? A: Yes. All substitute parts use TO-220-3 package configuration with through-hole mounting, ensuring mechanical compatibility with existing PCB layouts designed for Q6012RH5TP.

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