BTA201-600B,112 TRIAC Equivalent & Substitute Parts

Part Overview

The BTA201-600B,112 is a standard TRIAC thyristor manufactured by WeEn Semiconductors, rated for 600V off-state voltage and 1A on-state current in a through-hole TO-92-3 package. This component is active and in production with 1084 units currently in stock. Finding equivalent and substitute parts is necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design modifications call for enhanced gate sensitivity characteristics.

Key Parameters

Parameter	Value
Voltage - Off State	600 V
Current - On State (It RMS Max)	1 A
Voltage - Gate Trigger (Vgt Max)	1.5 V
Current - Gate Trigger (Igt Max)	50 mA
Current - Hold (Ih Max)	30 mA
Current - Non Rep. Surge (50/60Hz)	12.5A / 13.7A
Operating Temperature Range	-40°C to 125°C
Mounting Type	Through Hole
Package	TO-92-3
Configuration	Single
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the BTA201-600B,112 is determined by the following critical parameters:

Primary Matching Criteria:

Voltage - Off State: 600V (exact match required)
Current - On State: 1A or higher (equal or greater capacity acceptable)
Configuration: Single (no multi-device packages)
Mounting Type: Through Hole (mechanical compatibility)
Package: TO-92-3 or equivalent TO-226-3 form factor

Secondary Compatibility Factors:

Voltage - Gate Trigger (Vgt): Must not exceed 1.5V maximum
Current - Gate Trigger (Igt): Must not exceed 50mA maximum
Current - Hold (Ih): Must not exceed 30mA maximum
Operating Temperature: Must support -40°C to 125°C range
RoHS/REACH Compliance: Must maintain regulatory status

Substitute parts are grouped into two categories: direct replacements with identical electrical specifications and compatible alternatives with enhanced gate sensitivity (lower Vgt, Igt, Ih values) that maintain functional compatibility while offering improved triggering characteristics.

Parameter Comparison

Part Number	Manufacturer	Triac Type	Voltage - Off State	Current - On State (Max)	Vgt (Max)	Igt (Max)	Ih (Max)	Operating Temp	Package	Mounting	RoHS Status
BTA201-600B,112	WeEn Semiconductors	Standard	600V	1A	1.5V	50mA	30mA	-40 to 125°C	TO-92-3	Through Hole	RoHS Compliant
Q601E3	Littelfuse Inc.	Logic - Sensitive Gate	600V	1A	1.3V	10mA	15mA	-65 to 125°C	TO-92-3	Through Hole	ROHS3 Compliant
Z00607MA 5BL2	STMicroelectronics	Logic - Sensitive Gate	600V	800mA	1.3V	5mA	5mA	-40 to 110°C	TO-92-3	Through Hole	ROHS3 Compliant
Z0103MA 1AA2	STMicroelectronics	Logic - Sensitive Gate	600V	1A	1.3V	3mA	7mA	-40 to 125°C	TO-92-3	Through Hole	ROHS3 Compliant
Z0103MA 2AL2	STMicroelectronics	Logic - Sensitive Gate	600V	1A	1.3V	3mA	7mA	-40 to 125°C	TO-92-3	Through Hole	ROHS3 Compliant
Z0103MA 5AL2	STMicroelectronics	Logic - Sensitive Gate	600V	1A	1.3V	3mA	7mA	-40 to 125°C	TO-92-3	Through Hole	ROHS3 Compliant
Z0107MA 1AA2	STMicroelectronics	Logic - Sensitive Gate	600V	1A	1.3V	5mA	10mA	-40 to 125°C	TO-92-3	Through Hole	ROHS3 Compliant
Z0109MA 1AA2	STMicroelectronics	Logic - Sensitive Gate	600V	1A	1.3V	10mA	10mA	-40 to 125°C	TO-92-3	Through Hole	ROHS3 Compliant
Z0109MA 2AL2	STMicroelectronics	Logic - Sensitive Gate	600V	1A	1.3V	10mA	10mA	-40 to 125°C	TO-92-3	Through Hole	ROHS3 Compliant
Z0109MA 5AL2	STMicroelectronics	Logic - Sensitive Gate	600V	1A	1.3V	10mA	10mA	-40 to 125°C	TO-92-3	Through Hole	ROHS3 Compliant
L0109MTRP	Littelfuse Inc.	Logic - Sensitive Gate	600V	1A	1.3V	10mA	10mA	-40 to 125°C	SOT-223	Surface Mount	ROHS3 Compliant

Engineering Selection Recommendations

Direct Through-Hole Substitutes (Identical Package, Enhanced Gate Sensitivity):

The STMicroelectronics Z0103MA series (Z0103MA 1AA2, Z0103MA 2AL2, Z0103MA 5AL2) and Z0109MA series (Z0109MA 1AA2, Z0109MA 2AL2, Z0109MA 5AL2) provide full electrical compatibility with the BTA201-600B,112. All maintain 600V off-state voltage and 1A on-state current ratings while offering reduced gate trigger parameters (Vgt 1.3V, Igt 3-10mA, Ih 7-10mA). These parts are ROHS3 compliant and support the full -40°C to 125°C operating range. Packaging variants (Bulk, Cut Tape) do not affect electrical performance.

Alternative Through-Hole Substitute (Extended Temperature Range):

The Littelfuse Q601E3 operates from -65°C to 125°C, extending the lower temperature limit by 25°C compared to the BTA201-600B,112. It maintains 600V and 1A ratings with sensitive gate characteristics (Vgt 1.3V, Igt 10mA, Ih 15mA). This part is suitable when expanded low-temperature performance is required.

Current-Limited Substitute (Reduced On-State Current):

The STMicroelectronics Z00607MA 5BL2 is rated for 800mA on-state current, which is 200mA below the BTA201-600B,112 specification. This part is suitable only for applications where the load current does not exceed 800mA. It operates within -40°C to 110°C, with a 15°C reduction in maximum temperature compared to the primary part.

Surface-Mount Alternative (Different Package):

The Littelfuse L0109MTRP provides electrical equivalence in SOT-223 surface-mount packaging. This part is selected only when surface-mount assembly is required and through-hole mounting is not feasible. It maintains 600V, 1A, and sensitive gate specifications with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can Z00607MA 5BL2 be used as a direct replacement for BTA201-600B,112?

A: Z00607MA 5BL2 is electrically compatible only for applications where the on-state current requirement does not exceed 800mA. The BTA201-600B,112 is rated for 1A, so this substitute is suitable only for reduced-current designs. Additionally, the maximum operating temperature is limited to 110°C versus 125°C for the primary part.

Q: What is the difference between standard TRIAC and logic-sensitive gate TRIAC types?

A: The BTA201-600B,112 is a standard TRIAC with gate trigger specifications of Vgt 1.5V maximum and Igt 50mA maximum. The substitute parts listed (Z0103MA, Z0107MA, Z0109MA, Q601E3) are logic-sensitive gate TRIACs with lower trigger thresholds (Vgt 1.3V, Igt 3-10mA). Lower gate trigger parameters reduce the control signal power required for switching, making sensitive-gate devices suitable for low-power gate drive circuits.

Q: Are all substitute parts RoHS compliant?

A: Yes. The BTA201-600B,112 is RoHS Compliant. All listed substitute parts are ROHS3 Compliant or REACH Unaffected, maintaining regulatory compliance for restricted substance use.

Q: Can L0109MTRP replace BTA201-600B,112 in existing PCB designs?

A: No. L0109MTRP uses SOT-223 surface-mount packaging while BTA201-600B,112 uses TO-92-3 through-hole packaging. These packages have different pin configurations and footprints. L0109MTRP is selected only when redesigning for surface-mount assembly.

Q: Which substitute offers the best gate sensitivity?

A: The STMicroelectronics Z0103MA series (Z0103MA 1AA2, Z0103MA 2AL2, Z0103MA 5AL2) offers the lowest gate trigger current at 3mA maximum, providing the highest gate sensitivity among all listed substitutes. This reduces the control circuit power requirement.

Q: What is the difference between Z0109MA variants (1AA2, 2AL2, 5AL2)?

A: These part numbers represent different packaging and tape configurations. Z0109MA 1AA2 is supplied in Bulk packaging, while Z0109MA 2AL2 and Z0109MA 5AL2 are supplied in Cut Tape (CT) format. Electrical specifications are identical across all three variants.

Q: Can BTA201-600B,112 be used in applications requiring -65°C operation?

A: No. The BTA201-600B,112 operating temperature range is -40°C to 125°C. For applications requiring -65°C operation, the Littelfuse Q601E3 extends the lower limit to -65°C while maintaining all other electrical specifications.

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