Q6016RH3TP TRIAC Alternistor 600V 16A Equivalent & Substitute Parts

Part Overview

The Q6016RH3TP is a snubberless TRIAC alternistor manufactured by Littelfuse Inc., rated for 600V off-state voltage and 16A on-state current in a TO-220AB through-hole package. This component is designed for AC switching applications requiring bidirectional thyristor control. The part maintains active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical ratings, thermal characteristics, and mechanical compatibility within the TRIAC alternistor category.

Substiute Parts

Q6016RH3TP

Littelfuse Inc.In Stock: 911Q6016RH3TP Datasheet

Current PartRFQ

BTA16-600CWRG

STMicroelectronicsIn Stock: 1415BTA16-600CWRG Datasheet

MFR RecommendedRFQ

BTB16-600CWRG

STMicroelectronicsIn Stock: 8112BTB16-600CWRG Datasheet

MFR RecommendedRFQ

T1635H-6I

STMicroelectronicsIn Stock: 55510T1635H-6I Datasheet

MFR RecommendedRFQ

T1635H-6T

STMicroelectronicsIn Stock: 19332T1635H-6T Datasheet

MFR RecommendedRFQ

T2035H-6I

STMicroelectronicsIn Stock: 18487T2035H-6I Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Q6016RH3TP is determined by the following critical parameters:

• Voltage Rating (Off State): 600V minimum requirement
• Current Rating (On State): 16A or higher
• Gate Trigger Voltage (Vgt): Maximum 1.3V
• Gate Trigger Current (Igt): Maximum 20mA
• Package Type: TO-220-3 configuration
• Mounting: Through-hole compatibility
• Compliance: RoHS3 and REACH status

Substitute parts are grouped into two categories:

Group 1 - Direct Equivalents (16A Rating): BTA16-600CWRG, BTB16-600CWRG, T1635H-6I, and T1635H-6T meet all electrical parameters with identical 16A current ratings and 600V voltage specifications. These parts maintain TO-220-3 package compatibility and are fully interchangeable in applications requiring the specified electrical characteristics.

Group 2 - Higher Current Rating (20A Rating): T2035H-6I provides 20A on-state current, exceeding the 16A requirement. This part is suitable for applications where higher current capacity is beneficial or required, while maintaining 600V voltage rating and TO-220-3 package compatibility.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and full RoHS3 compliance, ensuring regulatory alignment with the original Q6016RH3TP component.

For Direct Replacement (16A Applications): BTA16-600CWRG, BTB16-600CWRG, T1635H-6I, and T1635H-6T are electrically and mechanically compatible. The T1635H series offers extended operating temperature range to 150°C compared to the Q6016RH3TP's 125°C maximum, providing thermal margin in temperature-sensitive applications. Gate trigger voltage specifications for T1635H variants are 1V maximum, which is lower than the Q6016RH3TP's 1.3V maximum, indicating tighter gate control characteristics.

For Higher Current Capacity (20A Applications): T2035H-6I provides 20A on-state current rating while maintaining 600V voltage specification and TO-220-3 package compatibility. This part is suitable when application requirements exceed 16A or when design margin for current capacity is desired. The extended temperature range to 150°C is also available with this variant.

Inventory Considerations: BTB16-600CWRG offers the highest inventory availability at 8,028 pieces, followed by T1635H-6I at 55,400 pieces, providing supply chain flexibility for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can BTA16-600CWRG directly replace Q6016RH3TP in all applications?

A: Yes, BTA16-600CWRG meets all critical electrical parameters: 600V off-state voltage, 16A on-state current, and compatible gate trigger specifications. Both components use TO-220-3 through-hole packaging and maintain RoHS3 compliance. Physical and electrical compatibility is confirmed.

Q: What is the difference between T1635H-6I and T1635H-6T?

A: Both variants share identical electrical specifications: 600V voltage rating, 16A current rating, 1V maximum gate trigger voltage, and -40°C to 150°C operating temperature range. The suffix designations (6I and 6T) indicate different packaging or tape configurations within the TO-220-3 family, but electrical performance is equivalent.

Q: Why does T2035H-6I have a 20A rating instead of 16A?

A: T2035H-6I is rated for 20A on-state current, which exceeds the Q6016RH3TP's 16A specification. This higher current capacity makes it suitable for applications requiring greater current handling or where design margin is required. The 600V voltage rating remains identical, and TO-220-3 package compatibility is maintained.

Q: Are there temperature range differences between substitute parts?

A: Yes. Q6016RH3TP operates from -40°C to 125°C. BTA16-600CWRG and BTB16-600CWRG maintain the same -40°C to 125°C range. T1635H series (T1635H-6I, T1635H-6T) and T2035H-6I extend the upper limit to 150°C, providing additional thermal headroom for high-temperature environments.

Q: Do all substitute parts have the same gate trigger current specification?

A: No. Q6016RH3TP specifies 20mA maximum gate trigger current (Igt). All substitute parts specify 35mA maximum, which is higher. This difference indicates the substitute parts require slightly more gate current for triggering, but this is within normal design tolerance for TRIAC gate drive circuits.

Q: Is the TO-220-3 package identical across all parts?

A: All parts use TO-220-3 through-hole package configuration with compatible pin assignments. Physical dimensions and mounting characteristics are equivalent, allowing direct PCB footprint compatibility.