ACT108-600D,412 TRIAC Equivalent & Substitute Parts

Part Overview

The ACT108-600D,412 is a Logic - Sensitive Gate TRIAC manufactured by WeEn Semiconductors, rated for 600 V off-state voltage and 800 mA on-state current. This through-hole TO-92-3 package component is actively produced and RoHS compliant. Equivalent and substitute parts are identified based on matching electrical characteristics and mechanical compatibility to support design flexibility, inventory optimization, and supply chain continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	ACT108-600D,412
Manufacturer	WeEn Semiconductors
Category	Thyristors
TRIAC Type	Logic - Sensitive Gate
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	800 mA
Voltage - Gate Trigger (Vgt) (Max)	900 mV
Current - Gate Trigger (Igt) (Max)	5 mA
Current - Hold (Ih) (Max)	20 mA
Operating Temperature	125°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-226-3, TO-92-3 (TO-226AA)
RoHS Status	RoHS Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Matching Parameters:

Voltage - Off State: 600 V (exact match required)
Package / Case: TO-92-3 or TO-226-3 (mechanical compatibility)
Mounting Type: Through Hole (assembly compatibility)
Configuration: Single (functional equivalence)

Secondary Compatibility Parameters:

Current - On State (It (RMS)) (Max): 800 mA or higher
Voltage - Gate Trigger (Vgt) (Max): within acceptable circuit design margins
Current - Gate Trigger (Igt) (Max): 5 mA or lower for gate drive compatibility
Current - Hold (Ih) (Max): 20 mA or lower for holding stability

Compliance Requirements:

Product Status: Active
RoHS Status: RoHS3 or RoHS Compliant

Substitute parts meeting these criteria are grouped by on-state current rating and gate trigger characteristics to support direct replacement or design-verified alternatives.

Parameter Comparison

Part Number	Manufacturer	TRIAC Type	Voltage - Off State (V)	Current - On State (mA)	Voltage - Gate Trigger (mV)	Current - Gate Trigger (mA)	Current - Hold (mA)	Operating Temp (°C)	Package	RoHS Status
ACT108-600D,412	WeEn Semiconductors	Logic - Sensitive Gate	600	800	900	5	20	125	TO-92-3	RoHS Compliant
Z00607MA 5BL2	STMicroelectronics	Logic - Sensitive Gate	600	800	1300	5	5	-40 to 110	TO-92-3	ROHS3 Compliant
Z0103MA 1AA2	STMicroelectronics	Logic - Sensitive Gate	600	1000	1300	3	7	-40 to 125	TO-92-3	ROHS3 Compliant
Z0103MA 2AL2	STMicroelectronics	Logic - Sensitive Gate	600	1000	1300	3	7	-40 to 125	TO-92-3	ROHS3 Compliant
Z0103MA 5AL2	STMicroelectronics	Logic - Sensitive Gate	600	1000	1300	3	7	-40 to 125	TO-92-3	ROHS3 Compliant
Z0107MA 1AA2	STMicroelectronics	Logic - Sensitive Gate	600	1000	1300	5	10	-40 to 125	TO-92-3	ROHS3 Compliant
Z0109MA 1AA2	STMicroelectronics	Logic - Sensitive Gate	600	1000	1300	10	10	-40 to 125	TO-92-3	ROHS3 Compliant
Z0109MA 2AL2	STMicroelectronics	Logic - Sensitive Gate	600	1000	1300	10	10	-40 to 125	TO-92	ROHS3 Compliant
Z0109MA 5AL2	STMicroelectronics	Logic - Sensitive Gate	600	1000	1300	10	10	-40 to 125	TO-92	ROHS3 Compliant
Q601E3	Littelfuse Inc.	Logic - Sensitive Gate	600	1000	1300	10	15	-65 to 125	TO-92-3	ROHS3 Compliant
ACS102-6TA-TR	STMicroelectronics	Alternistor - Snubberless	600	200	900	5	20	-30 to 125	TO-92-3	ROHS3 Compliant

Engineering Selection Recommendations

Direct Current Rating Match (800 mA): Z00607MA 5BL2 provides identical on-state current rating with matching gate trigger voltage specification. This part is suitable for applications requiring no current derating and operates within the -40°C to 110°C temperature range.

Higher Current Capacity (1 A): Z0103MA series (1AA2, 2AL2, 5AL2), Z0107MA 1AA2, Z0109MA series (1AA2, 2AL2, 5AL2), and Q601E3 all provide 1 A on-state current, offering design margin above the 800 mA requirement. These parts are recommended for applications with potential current transients or future design upgrades. All maintain 600 V off-state voltage and TO-92-3 package compatibility.

Lower Current Capacity (200 mA): ACS102-6TA-TR is classified as an Alternistor - Snubberless TRIAC with 200 mA on-state current. This part is not suitable as a direct substitute for 800 mA applications but may be considered only in circuits specifically designed for lower current operation.

Compliance and Availability: All substitute parts listed carry active product status and ROHS3 or RoHS Compliant certification. STMicroelectronics Z-series parts demonstrate high inventory availability (3,165 to 90,400 units), supporting supply chain reliability.

Frequently Asked Questions (FAQ)

Q: Can Z00607MA 5BL2 replace ACT108-600D,412 directly? A: Yes. Z00607MA 5BL2 matches the 800 mA on-state current rating, 600 V off-state voltage, and TO-92-3 package. Gate trigger voltage differs (1300 mV vs. 900 mV), requiring circuit validation for gate drive compatibility.

Q: What is the difference between Z0103MA and Z0109MA series? A: Both series provide 1 A on-state current and 600 V off-state voltage in TO-92-3 packages. Z0103MA has lower gate trigger current (3 mA max) and hold current (7 mA max), while Z0109MA has higher gate trigger current (10 mA max) and hold current (10 mA max). Selection depends on gate drive circuit requirements.

Q: Is ACS102-6TA-TR compatible with ACT108-600D,412? A: No. ACS102-6TA-TR is rated for 200 mA on-state current, significantly below the 800 mA requirement. It is not suitable for direct substitution in circuits designed for the ACT108-600D,412.

Q: What is the impact of different operating temperature ranges? A: ACT108-600D,412 operates to 125°C. Z00607MA 5BL2 operates to 110°C, which may limit use in high-temperature environments. Z0103MA, Z0107MA, Z0109MA, and Q601E3 all support -40°C to 125°C, matching or exceeding the original specification.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts carry ROHS3 Compliant or RoHS Compliant certification, meeting environmental and regulatory requirements equivalent to the ACT108-600D,412.

Q: What packaging options are available? A: Most substitute parts are available in TO-92-3 package with formed leads (Cut Tape or Bulk). Z0109MA 2AL2 and Z0109MA 5AL2 are supplied in TO-92 package. Verify lead configuration compatibility with PCB assembly equipment.

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