CTB06-1200SWPT Equivalent & Substitute Parts

Part Overview

The CTB06-1200SWPT is a Logic - Sensitive Gate TRIAC manufactured by Sensata-Crydom, rated for 1.2 kV off-state voltage and 6 A on-state current in a Through Hole TO-220AB package. This component is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations. The sensitive gate configuration requires lower gate trigger current (10 mA maximum) compared to standard TRIAC designs, which is a critical parameter for gate drive circuit compatibility.

Substiute Parts

CTB06-1200SWPT

Sensata-CrydomIn Stock: 930CTB06-1200SWPT Datasheet

Current PartRFQ

TXDV1212RG

STMicroelectronicsIn Stock: 10328TXDV1212RG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CTB06-1200SWPT is determined by the following critical parameters:

• Voltage Rating (Off State): Must match or exceed 1.2 kV to maintain system voltage protection
• Package Type: Must be TO-220AB (Through Hole TO-220-3) for mechanical and thermal compatibility
• Operating Temperature Range: Must support -40°C ~ 125°C junction temperature range
• Configuration: Single TRIAC configuration required
• On-State Current Capability: Must meet or exceed 6 A RMS rating for load handling

The TXDV1212RG from STMicroelectronics meets these core substitution criteria. While it is classified as a Standard TRIAC rather than Logic - Sensitive Gate, it maintains identical voltage and temperature specifications, identical package configuration, and provides higher on-state current capability (12 A versus 6 A). The gate trigger parameters differ (Igt: 100 mA versus 10 mA; Vgt: 1.5 V versus 1.3 V), which requires gate drive circuit evaluation for compatibility.

Parameter Comparison

Engineering Selection Recommendations

The TXDV1212RG is the designated manufacturer-recommended substitute for the CTB06-1200SWPT. Selection of this alternative is supported by the following factors:

• Product Status: The CTB06-1200SWPT is Obsolete, while TXDV1212RG is Active, ensuring long-term availability and supply chain continuity
• Compliance: TXDV1212RG is ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements
• Electrical Compatibility: Identical voltage rating (1.2 kV) and operating temperature range (-40°C ~ 125°C) ensure direct functional replacement in thermal and voltage stress conditions
• Package Compatibility: Both components use TO-220AB Through Hole packaging, maintaining identical PCB footprint and thermal interface requirements
• Current Capability: The TXDV1212RG provides doubled on-state current capacity (12 A versus 6 A), offering design margin for existing applications

Gate drive circuit compatibility must be verified, as the TXDV1212RG requires higher gate trigger current (100 mA versus 10 mA) and slightly higher gate trigger voltage (1.5 V versus 1.3 V) compared to the original Logic - Sensitive Gate design.

Frequently Asked Questions (FAQ)

Q: Can TXDV1212RG directly replace CTB06-1200SWPT without circuit modifications?

A: Mechanical and thermal replacement is direct due to identical TO-220AB packaging and voltage/temperature ratings. Gate drive circuit evaluation is required due to different gate trigger specifications. The TXDV1212RG requires 100 mA gate trigger current versus 10 mA for the original part.

Q: What is the primary difference between Logic - Sensitive Gate and Standard TRIAC types?

A: Logic - Sensitive Gate TRIACs are designed for lower gate trigger current requirements, typically 10 mA or less, enabling direct microcontroller or logic-level gate drive. Standard TRIACs require higher gate trigger current (typically 50-100 mA), necessitating dedicated gate drive circuits.

Q: Are the voltage and temperature ratings identical between these parts?

A: Yes. Both components are rated for 1.2 kV off-state voltage and -40°C ~ 125°C junction temperature operation, ensuring equivalent performance in voltage stress and thermal cycling conditions.

Q: What is the significance of the doubled on-state current rating (12 A versus 6 A)?

A: The TXDV1212RG provides higher current handling capacity, allowing it to support higher load currents or provide design margin in existing 6 A applications. This is a beneficial characteristic for substitution.

Q: Is the TO-220AB package identical between both parts?

A: Yes. Both components use TO-220-3 Through Hole packaging with identical mechanical dimensions, pin configuration, and thermal interface characteristics, ensuring PCB compatibility without layout modifications.

Q: What compliance certifications apply to the substitute part?

A: TXDV1212RG is ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic component procurement and use.