Q6035RH5 TRIAC Alternistor 600V 35A TO-220 Equivalent & Substitute Parts

Part Overview

The Q6035RH5 is a TRIAC Alternistor (Snubberless) rated for 600V off-state voltage and 35A on-state current in a Through Hole TO-220 package manufactured by Littelfuse Inc. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent substitute parts from active product lines. Substitute selection is based on matching electrical parameters within allowable tolerances and maintaining identical package configuration and mounting type.

Key Parameters

Parameter	Q6035RH5 Specification
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	35 A
Voltage - Gate Trigger (Vgt) (Max)	2 V
Current - Gate Trigger (Igt) (Max)	50 mA
Current - Hold (Ih) (Max)	75 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)	290A, 350A
Triac Type	Alternistor - Snubberless
Operating Temperature	-25°C ~ 125°C (TJ)
Package / Case	TO-220-3
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute TRIAC components for the Q6035RH5 must satisfy the following criteria:

Voltage - Off State: 600V minimum
Package / Case: TO-220-3
Mounting Type: Through Hole
Configuration: Single
RoHS Status: ROHS3 Compliant

The Q6035RH5 operates at 35A on-state current. Available substitutes from the active product line range from 4A to 8A maximum on-state current ratings. These lower-current alternatives are suitable for applications where the full 35A capacity is not required. Selection among substitutes depends on specific application current requirements and gate trigger characteristics.

All substitute parts listed maintain 600V off-state voltage rating and TO-220-3 package configuration, ensuring mechanical and electrical compatibility within the specified parameter envelope.

Parameter Comparison

Part Number	Manufacturer	Triac Type	Voltage - Off State	Current - On State (It (RMS)) (Max)	Voltage - Gate Trigger (Vgt) (Max)	Current - Gate Trigger (Igt) (Max)	Current - Hold (Ih) (Max)	Operating Temperature	Product Status
Q6035RH5	Littelfuse Inc.	Alternistor - Snubberless	600 V	35 A	2 V	50 mA	75 mA	-25°C ~ 125°C	Discontinued
AVS12CB	STMicroelectronics	Internally Triggered	600 V	12 A	—	—	—	0°C ~ 125°C	Active
BTB04-600SL	STMicroelectronics	Logic - Sensitive Gate	600 V	4 A	1.3 V	10 mA	15 mA	-40°C ~ 125°C	Active
BTB06-600BWRG	STMicroelectronics	Alternistor - Snubberless	600 V	6 A	1.3 V	50 mA	50 mA	-40°C ~ 125°C	Active
BTB06-600CRG	STMicroelectronics	Standard	600 V	6 A	1.3 V	25 mA	25 mA	-40°C ~ 125°C	Active
BTB08-600BRG	STMicroelectronics	Standard	600 V	8 A	1.3 V	50 mA	50 mA	-40°C ~ 125°C	Active
BTB08-600BWRG	STMicroelectronics	Alternistor - Snubberless	600 V	8 A	1.3 V	50 mA	50 mA	-40°C ~ 125°C	Active
BTB08-600CRG	STMicroelectronics	Standard	600 V	8 A	1.3 V	25 mA	25 mA	-40°C ~ 125°C	Active
BTB08-600CWRG	STMicroelectronics	Alternistor - Snubberless	600 V	8 A	1.3 V	35 mA	35 mA	-40°C ~ 125°C	Active
BTB08-600SWRG	STMicroelectronics	Logic - Sensitive Gate	600 V	8 A	1.3 V	10 mA	15 mA	-40°C ~ 125°C	Active
BTB08-600TWRG	STMicroelectronics	Logic - Sensitive Gate	600 V	8 A	1.3 V	5 mA	10 mA	-40°C ~ 125°C	Active

Engineering Selection Recommendations

All listed substitute parts are ROHS3 compliant and maintain 600V off-state voltage rating with TO-220-3 package configuration. Selection criteria are based on application current requirements and gate trigger characteristics:

For applications requiring 4A maximum on-state current, BTB04-600SL provides Logic - Sensitive Gate operation with 10mA gate trigger current and extended temperature range (-40°C ~ 125°C).

For applications requiring 6A maximum on-state current, two options exist: BTB06-600BWRG (Alternistor - Snubberless, 50mA gate trigger) or BTB06-600CRG (Standard type, 25mA gate trigger).

For applications requiring 8A maximum on-state current, multiple options are available: BTB08-600BRG and BTB08-600CRG (Standard types), BTB08-600BWRG and BTB08-600CWRG (Alternistor - Snubberless types), or BTB08-600SWRG and BTB08-600TWRG (Logic - Sensitive Gate types with 10mA and 5mA gate trigger respectively).

For applications requiring 12A maximum on-state current, AVS12CB (Internally Triggered) is available with active product status.

All substitute parts are currently in active production status with inventory availability.

Frequently Asked Questions (FAQ)

Q: Can I use a lower current-rated TRIAC as a substitute for the Q6035RH5?

A: Yes, provided the application current requirement does not exceed the substitute part's on-state current rating. The Q6035RH5 is rated for 35A maximum; substitutes range from 4A to 12A. Selection depends on actual circuit current demand.

Q: Are all substitute parts pin-compatible with the Q6035RH5?

A: Yes. All substitute parts use TO-220-3 package configuration with identical pin assignment for Through Hole mounting.

Q: What is the difference between Alternistor - Snubberless and Standard TRIAC types?

A: Alternistor - Snubberless types (such as BTB06-600BWRG and BTB08-600BWRG) are designed to operate without external snubber circuits. Standard types require evaluation of snubber requirements for specific applications.

Q: Which substitute offers the lowest gate trigger current?

A: BTB08-600TWRG provides the lowest gate trigger current at 5mA maximum, classified as Logic - Sensitive Gate type.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts meet ROHS3 compliance requirements.

Q: What is the temperature operating range difference between the Q6035RH5 and substitutes?

A: The Q6035RH5 operates from -25°C to 125°C. Most STMicroelectronics substitutes extend the lower temperature limit to -40°C, except AVS12CB which operates from 0°C to 125°C.

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