ACT108-800EML Equivalent & Substitute Parts

Part Overview

The ACT108-800EML is a Logic-Sensitive Gate TRIAC manufactured by WeEn Semiconductors, rated for 800V off-state voltage and 800mA on-state current in a through-hole TO-92-3 package. This component is Active in product status and RoHS Compliant. Equivalent and substitute parts are identified when parametric specifications align within acceptable tolerances for the intended application, or when higher current ratings provide functional compatibility for designs requiring additional margin.

Key Parameters

Parameter	Value	Unit
Voltage - Off State	800	V
Current - On State (It (RMS)) (Max)	800	mA
Voltage - Gate Trigger (Vgt) (Max)	1	V
Current - Gate Trigger (Igt) (Max)	10	mA
Current - Hold (Ih) (Max)	20	mA
Operating Temperature (TJ)	125	°C
Package / Case	TO-92-3	—
Mounting Type	Through Hole	—

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Parametric Equivalent (ACT108-800EQP): Identical electrical specifications across all key parameters—800V off-state voltage, 800mA on-state current, 1V gate trigger voltage, 10mA gate trigger current, and 20mA hold current. Differs only in packaging format (Cut Tape vs. Tape & Box), making it a direct functional equivalent suitable for identical circuit applications.

Similar Substitute (Z0107NA 2AL2): Shares the same 800V off-state voltage and through-hole TO-92-3 package configuration. On-state current is rated higher at 1A (compared to 800mA), providing increased current capacity. Gate trigger voltage is 1.3V (vs. 1V), gate trigger current is 5mA (vs. 10mA), and hold current is 10mA (vs. 20mA). This part is suitable for applications where the ACT108-800EML operates below its maximum current rating and where slightly higher gate trigger voltage is acceptable. Operating temperature range extends to −40°C.

Parameter Comparison

Parameter	ACT108-800EML	ACT108-800EQP	Z0107NA 2AL2
Manufacturer	WeEn Semiconductors	WeEn Semiconductors	STMicroelectronics
Voltage - Off State	800 V	800 V	800 V
Current - On State (It (RMS)) (Max)	800 mA	800 mA	1 A
Voltage - Gate Trigger (Vgt) (Max)	1 V	1 V	1.3 V
Current - Gate Trigger (Igt) (Max)	10 mA	10 mA	5 mA
Current - Hold (Ih) (Max)	20 mA	20 mA	10 mA
Operating Temperature (TJ)	125°C	125°C	−40°C to 125°C
Package / Case	TO-92-3	TO-92-3	TO-92-3
Mounting Type	Through Hole	Through Hole	Through Hole
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

ACT108-800EQP is the direct parametric equivalent and should be selected when packaging format (Cut Tape) is compatible with procurement and assembly workflows. Both parts are Active, RoHS Compliant, and carry identical electrical specifications. This substitution introduces no circuit-level risk.

Z0107NA 2AL2 is suitable as a substitute when the application operates the TRIAC below 800mA on-state current and can tolerate the higher gate trigger voltage of 1.3V. The increased on-state current rating (1A) provides additional design margin. This part is ROHS3 Compliant and Active. The extended operating temperature range (−40°C to 125°C) offers broader environmental compatibility compared to the ACT108-800EML (0°C to 125°C implied by maximum rating). Selection of this part requires verification that gate drive circuitry can supply the higher trigger voltage and that the application does not depend on the lower hold current specification.

Frequently Asked Questions (FAQ)

Q: Can ACT108-800EQP be used as a direct replacement for ACT108-800EML?

A: Yes. ACT108-800EQP is a parametric equivalent with identical electrical specifications. The only difference is packaging format (Cut Tape vs. Tape & Box). No circuit modifications are required.

Q: Is Z0107NA 2AL2 compatible with designs specified for ACT108-800EML?

A: Compatibility depends on application operating conditions. Z0107NA 2AL2 shares the same 800V voltage rating and TO-92-3 package. However, gate trigger voltage is 1.3V (vs. 1V), requiring verification that gate drive circuitry can supply this higher voltage. If the application operates below 800mA on-state current, the higher 1A rating of Z0107NA 2AL2 provides margin. Hold current is lower (10mA vs. 20mA), which may affect latching behavior in specific circuit topologies.

Q: What are the key differences between ACT108-800EML and Z0107NA 2AL2?

A: Both are 800V Logic-Sensitive Gate TRIACs in TO-92-3 packages. Z0107NA 2AL2 has higher on-state current (1A vs. 800mA), higher gate trigger voltage (1.3V vs. 1V), lower gate trigger current (5mA vs. 10mA), lower hold current (10mA vs. 20mA), and an extended operating temperature range (−40°C to 125°C vs. 125°C maximum). Manufacturer differs: WeEn Semiconductors vs. STMicroelectronics.

Q: Are all three parts RoHS compliant?

A: Yes. ACT108-800EML and ACT108-800EQP are RoHS Compliant. Z0107NA 2AL2 is ROHS3 Compliant. All three meet RoHS requirements.

Q: Can I use Z0107NA 2AL2 in a circuit designed for 800mA maximum current?

A: Yes, provided gate drive circuitry can supply 1.3V trigger voltage. The higher 1A on-state current rating of Z0107NA 2AL2 does not create a problem in circuits operating below this limit. However, verify that the lower hold current (10mA vs. 20mA) does not affect circuit latching or commutation behavior.

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