TOPT16-800C0,127 TRIAC 800V 16A TO-220AB Equivalent & Substitute Parts

Part Overview

The TOPT16-800C0,127 is a standard TRIAC rated for 800V off-state voltage and 16A on-state current in a through-hole TO-220AB package. Manufactured by WeEn Semiconductors, this component is classified as Active product status. Equivalent and substitute parts are identified based on matching or compatible electrical ratings and mechanical packaging specifications that permit direct functional replacement in circuit applications.

Key Parameters

Parameter	TOPT16-800C0,127
Manufacturer	WeEn Semiconductors
Voltage - Off State	800 V
Current - On State (It (RMS)) (Max)	16 A
Voltage - Gate Trigger (Vgt) (Max)	2.3 V
Current - Gate Trigger (Igt) (Max)	35 mA
Current - Hold (Ih) (Max)	35 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	140A, 150A
Operating Temperature	150°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-220-3
Supplier Device Package	TO-220AB
Triac Type	Standard
Configuration	Single
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Voltage - Off State: 800 V (exact match required)
Current - On State (It (RMS)) (Max): 16 A or higher
Mounting Type: Through Hole
Package / Case: TO-220-3 compatible
Configuration: Single
Gate trigger and hold current specifications within acceptable ranges

Substitute parts are grouped into two categories:

Category 1: Standard TRIAC Type (16A Rating) Parts matching the original 16A current rating and Standard TRIAC classification with 800V off-state voltage.

Category 2: Alternistor - Snubberless Type (16A Rating) Parts with Alternistor - Snubberless technology, 16A current rating, and 800V off-state voltage. These offer enhanced performance characteristics while maintaining electrical compatibility.

Category 3: Standard TRIAC Type (15A Rating) Parts with Standard TRIAC classification and 15A current rating. These are suitable for applications where the full 16A capacity is not required, provided circuit design accommodates the lower current rating.

Category 4: Alternistor - Snubberless Type (12A Rating) Parts with Alternistor - Snubberless technology and 12A current rating. These are suitable for applications where the full 16A capacity is not required, provided circuit design accommodates the lower current rating.

Parameter Comparison

Parameter	TOPT16-800C0,127	T1625T-8I	T1635T-8T	MAC15NG	BTA12-800CWRG	BTB12-800CWRG
Manufacturer	WeEn Semiconductors	STMicroelectronics	STMicroelectronics	Littelfuse Inc.	STMicroelectronics	STMicroelectronics
Voltage - Off State	800 V	800 V	800 V	800 V	800 V	800 V
Current - On State (It (RMS)) (Max)	16 A	16 A	16 A	15 A	12 A	12 A
Voltage - Gate Trigger (Vgt) (Max)	2.3 V	1.3 V	1.3 V	1.5 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	35 mA	25 mA	35 mA	35 mA	35 mA	35 mA
Current - Hold (Ih) (Max)	35 mA	35 mA	40 mA	40 mA	35 mA	35 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	140A, 150A	120A, 126A	120A, 126A	150A @ 60Hz	120A, 126A	120A, 126A
Operating Temperature	150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)	-40°C ~ 125°C (TJ)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Supplier Device Package	TO-220AB	TO-220AB Insulated	TO-220	TO-220AB	TO-220AB Insulated	TO-220
Triac Type	Standard	Standard	Alternistor - Snubberless	Standard	Alternistor - Snubberless	Alternistor - Snubberless
Configuration	Single	Single	Single	Single	Single	Single
Product Status	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain Active product status, ensuring continued availability and manufacturer support. Parts designated as ROHS3 Compliant meet environmental compliance requirements for restricted substances.

For applications requiring exact current rating match (16A) with Standard TRIAC technology, T1625T-8I from STMicroelectronics provides direct substitution with identical on-state current specification and extended operating temperature range to 150°C.

For applications where Alternistor - Snubberless technology is acceptable at 16A rating, T1635T-8T from STMicroelectronics offers this enhanced TRIAC variant with identical current rating and extended operating temperature range to 150°C.

For applications where 15A current capacity is sufficient, MAC15NG from Littelfuse Inc. provides Standard TRIAC substitution with operating temperature range of -40°C to 125°C.

For applications where 12A current capacity is sufficient, BTA12-800CWRG and BTB12-800CWRG from STMicroelectronics provide Alternistor - Snubberless substitution with operating temperature range of -40°C to 125°C. These parts differ in supplier device package designation (TO-220AB Insulated versus TO-220).

Frequently Asked Questions (FAQ)

Q: Can T1625T-8I directly replace TOPT16-800C0,127?

A: Yes. Both parts are rated for 800V off-state voltage and 16A on-state current with Standard TRIAC classification. Both use TO-220-3 package configuration. T1625T-8I features lower gate trigger voltage (1.3V versus 2.3V) and lower gate trigger current (25mA versus 35mA), which may require gate drive circuit adjustment. T1625T-8I supports extended operating temperature to 150°C.

Q: What is the difference between T1635T-8T and T1625T-8I?

A: T1635T-8T is classified as Alternistor - Snubberless technology, while T1625T-8I is Standard TRIAC technology. Both are rated for 800V and 16A. T1635T-8T has gate trigger voltage of 1.3V and gate trigger current of 35mA. T1625T-8I has gate trigger voltage of 1.3V and gate trigger current of 25mA. Both support operating temperature to 150°C.

Q: Can I use MAC15NG as a substitute if my circuit only requires 15A?

A: Yes, provided your circuit design accommodates the 15A maximum on-state current rating. MAC15NG maintains 800V off-state voltage, Standard TRIAC classification, and TO-220-3 package compatibility. Operating temperature range is -40°C to 125°C.

Q: What is the difference between BTA12-800CWRG and BTB12-800CWRG?

A: Both parts are rated for 800V and 12A with Alternistor - Snubberless technology. The primary difference is supplier device package designation: BTA12-800CWRG is specified as TO-220AB Insulated, while BTB12-800CWRG is specified as TO-220. Both use TO-220-3 package case classification. Verify mechanical compatibility with your PCB layout before selection.

Q: Are all substitute parts RoHS compliant?

A: T1625T-8I, T1635T-8T, MAC15NG, BTA12-800CWRG, and BTB12-800CWRG are all ROHS3 Compliant. The original TOPT16-800C0,127 RoHS status is not specified in available documentation.

Q: What is the impact of lower gate trigger voltage on circuit design?

A: Substitute parts with lower gate trigger voltage (1.3V versus 2.3V) require less gate drive voltage to trigger the TRIAC. This may necessitate adjustment of gate drive circuit components to ensure reliable triggering across operating temperature and load conditions. Consult device datasheets for gate drive circuit design guidance.

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