Q8010RH5TP TRIAC Alternistor 800V 10A Equivalent & Substitute Parts

Part Overview

The Q8010RH5TP is an 800V 10A TRIAC Alternistor (Snubberless) manufactured by Littelfuse Inc. in TO-220AB through-hole packaging. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific requirements within the allowed parameter ranges for this thyristor category.

Key Parameters

Parameter	Value
Manufacturer Part Number	Q8010RH5TP
Manufacturer	Littelfuse Inc.
Category	Thyristors
Triac Type	Alternistor - Snubberless
Voltage - Off State	800 V
Current - On State (It (RMS)) (Max)	10 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V
Current - Gate Trigger (Igt) (Max)	50 mA
Current - Hold (Ih) (Max)	50 mA
Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Through Hole
Package / Case	TO-220-3
Supplier Device Package	TO-220AB
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the Q8010RH5TP is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - Off State: 800 V
Package / Case: TO-220-3
Mounting Type: Through Hole
Configuration: Single
RoHS Status: ROHS3 Compliant

Allowable Parameter Ranges for Substitution:

Current - On State (It (RMS)) (Max): 10 A or higher
Voltage - Gate Trigger (Vgt) (Max): 1.3 V to 1.5 V
Current - Gate Trigger (Igt) (Max): 50 mA (standard across all parts)
Current - Hold (Ih) (Max): 50 mA to 60 mA
Operating Temperature: -40°C ~ 125°C or higher minimum
Triac Type: Alternistor - Snubberless or Standard

Substitute parts are categorized as either MFR Recommended (direct manufacturer alternatives) or Parametric Equivalent (parts meeting allowable parameter ranges).

Parameter Comparison

Parameter	Q8010RH5TP (Main)	BTA12-800BRG	BTA12-800BWRG	BTA316-800B,127	BTA10-800BWRG	BTB10-800BWRG
Manufacturer	Littelfuse Inc.	STMicroelectronics	STMicroelectronics	WeEn Semiconductors	STMicroelectronics	STMicroelectronics
Triac Type	Alternistor - Snubberless	Standard	Alternistor - Snubberless	Standard	Alternistor - Snubberless	Alternistor - Snubberless
Voltage - Off State	800 V	800 V	800 V	800 V	800 V	800 V
Current - On State (It (RMS)) (Max)	10 A	12 A	12 A	16 A	10 A	10 A
Voltage - Gate Trigger (Vgt) (Max)	1.3 V	1.3 V	1.3 V	1.5 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	50 mA	50 mA	50 mA	50 mA	50 mA	50 mA
Current - Hold (Ih) (Max)	50 mA	50 mA	50 mA	60 mA	50 mA	50 mA
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	125°C	-40°C ~ 125°C	-40°C ~ 125°C
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-220AB Insulated	TO-220AB	TO-220	TO-220
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

MFR Recommended Substitutes:

BTA12-800BRG and BTA12-800BWRG (STMicroelectronics) are manufacturer-recommended alternatives with 12A on-state current capability. Both maintain 800V off-state voltage, identical gate trigger parameters (1.3V max), and full operating temperature range (-40°C ~ 125°C). BTA12-800BWRG preserves the Alternistor - Snubberless topology matching the original design. Both are ROHS3 compliant and Active status.

BTA316-800B,127 (WeEn Semiconductors) provides 16A on-state current with 800V off-state voltage and ROHS3 compliance. Gate trigger voltage is 1.5V maximum (within allowable range). Operating temperature specification is 125°C. This part is suitable for applications requiring higher current capacity within the 800V class.

Parametric Equivalent Substitutes:

BTA10-800BWRG and BTB10-800BWRG (STMicroelectronics) are parametric equivalents matching the original 10A on-state current specification. Both feature Alternistor - Snubberless topology, 800V off-state voltage, 1.3V gate trigger voltage, and full operating temperature range. Supplier device package differs (TO-220 vs. TO-220AB), but mechanical compatibility is maintained within TO-220-3 case specification. Both are ROHS3 compliant and Active status.

All substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can BTA12-800BRG or BTA12-800BWRG be used as direct replacements for Q8010RH5TP?

A: Yes. Both parts maintain the mandatory 800V off-state voltage, TO-220-3 package, through-hole mounting, and ROHS3 compliance. The 12A on-state current is higher than the original 10A specification, which is acceptable for substitution. Gate trigger parameters (1.3V max) are identical. BTA12-800BWRG additionally preserves the Alternistor - Snubberless topology.

Q: What is the difference between BTA12-800BRG and BTA12-800BWRG?

A: BTA12-800BRG is a Standard TRIAC, while BTA12-800BWRG is an Alternistor - Snubberless TRIAC. Both share identical electrical parameters (800V, 12A, 1.3V gate trigger). The Alternistor - Snubberless variant (BWRG) matches the original Q8010RH5TP topology more closely.

Q: Are BTA10-800BWRG and BTB10-800BWRG interchangeable with Q8010RH5TP?

A: Yes, as parametric equivalents. Both maintain 10A on-state current, 800V off-state voltage, 1.3V gate trigger voltage, and Alternistor - Snubberless topology. The supplier device package designation differs (TO-220 vs. TO-220AB), but both conform to TO-220-3 mechanical specifications and are mechanically compatible.

Q: Can BTA316-800B,127 replace Q8010RH5TP in all applications?

A: BTA316-800B,127 is suitable for applications where higher current capacity (16A vs. 10A) is beneficial or required. It maintains 800V off-state voltage, ROHS3 compliance, and through-hole TO-220-3 mounting. The gate trigger voltage is 1.5V maximum (within allowable range). Verify application requirements for current and gate trigger specifications before selection.

Q: What packaging differences exist between these substitute parts?

A: All parts use TO-220-3 case specification. Supplier device package designations vary: Q8010RH5TP uses TO-220AB, BTA12 series use TO-220AB Insulated, BTA316-800B,127 uses TO-220AB, and BTA10/BTB10 series use TO-220. These designations reflect insulation and lead configuration details but do not affect mechanical compatibility within the TO-220-3 standard.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (BTA12-800BRG, BTA12-800BWRG, BTA316-800B,127, BTA10-800BWRG, BTB10-800BWRG) are ROHS3 compliant and maintain Active product status, ensuring regulatory compliance and supply chain continuity.

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