ACTT12B-800CTNJ Equivalent & Substitute Parts

Part Overview

The ACTT12B-800CTNJ is a Standard TRIAC manufactured by WeEn Semiconductors, rated for 800V off-state voltage and 12A on-state current in a surface mount D2PAK package. This component is designed for AC switching applications requiring high voltage isolation and moderate current handling. The part is Active in product status with full RoHS compliance and unlimited moisture sensitivity rating. Equivalent parts are identified to support supply chain flexibility, design redundancy, and procurement optimization when the primary part becomes unavailable or when alternative sourcing is required.

Key Parameters

Parameter	Value	Unit
Voltage - Off State	800	V
Current - On State (It (RMS)) (Max)	12	A
Voltage - Gate Trigger (Vgt) (Max)	1	V
Current - Gate Trigger (Igt) (Max)	35	mA
Current - Hold (Ih) (Max)	30	mA
Current - Non Rep. Surge 50Hz	120	A
Current - Non Rep. Surge 60Hz	132	A
Package / Case	TO-263-3, D2PAK	-
Mounting Type	Surface Mount	-
Operating Temperature (TJ)	150	°C
RoHS Status	RoHS Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution eligibility for the ACTT12B-800CTNJ is determined by strict equivalence across the following critical parameters:

Voltage - Off State: 800V minimum
Current - On State (It (RMS)): 12A minimum
Package / Case: TO-263-3, D2PAK (2 Leads + Tab)
Mounting Type: Surface Mount
Configuration: Single
Gate Trigger specifications: Vgt ≤ 1.3V, Igt ≤ 35mA
Hold Current: Ih ≤ 35mA
Non-Repetitive Surge Current: ≥120A (50Hz), ≥126A (60Hz)
RoHS Compliance: Required
MSL Rating: 1 (Unlimited)

The substitute part T1235-800G-TR meets all substitution criteria within the allowed parameter ranges for this TRIAC category.

Parameter Comparison

Parameter	ACTT12B-800CTNJ (WeEn)	T1235-800G-TR (STMicroelectronics)	Match Status
Voltage - Off State	800V	800V	Equivalent
Current - On State (It (RMS)) (Max)	12A	12A	Equivalent
Voltage - Gate Trigger (Vgt) (Max)	1V	1.3V	Compatible
Current - Gate Trigger (Igt) (Max)	35mA	35mA	Equivalent
Current - Hold (Ih) (Max)	30mA	35mA	Compatible
Current - Non Rep. Surge 50Hz	120A	120A	Equivalent
Current - Non Rep. Surge 60Hz	132A	126A	Compatible
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Configuration	Single	Single	Equivalent
RoHS Status	RoHS Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

Both the ACTT12B-800CTNJ and T1235-800G-TR are Active products with full RoHS compliance. The T1235-800G-TR carries additional REACH Unaffected certification. Both components meet the electrical and mechanical requirements for direct substitution in 800V, 12A TRIAC applications using D2PAK surface mount packaging. Selection between these parts should be based on availability, lead time, and procurement cost, as all critical parameters remain within acceptable equivalence ranges.

Frequently Asked Questions (FAQ)

Q: Can T1235-800G-TR replace ACTT12B-800CTNJ in existing designs?

A: Yes. Both parts share identical voltage ratings (800V), current ratings (12A), package type (D2PAK), and mounting method (surface mount). Gate trigger voltage differs by 0.3V maximum (1V vs. 1.3V), which remains within acceptable design margins for standard AC switching applications. Hold current tolerance is also compatible (30mA vs. 35mA maximum).

Q: Are there differences in TRIAC type between these parts?

A: The ACTT12B-800CTNJ is classified as a Standard TRIAC, while the T1235-800G-TR is an Alternistor - Snubberless type. Both are functionally equivalent for 800V, 12A switching applications. The Snubberless designation indicates optimized gate drive characteristics but does not affect substitution eligibility for this voltage and current class.

Q: Do packaging and mounting specifications match exactly?

A: Yes. Both parts use TO-263-3 D2PAK (2 Leads + Tab) packaging with surface mount configuration. PCB footprints and thermal management characteristics are identical.

Q: What is the significance of the MSL rating?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling. Standard component storage practices apply without special desiccant or humidity control requirements.

Q: Are there compliance differences between these parts?

A: Both parts are RoHS compliant. The T1235-800G-TR additionally carries REACH Unaffected certification. Both are classified under ECCN EAR99 and HTSUS 8541.30.0080 for export and tariff purposes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message