CTB06-1200SW Equivalent & Substitute Parts

Part Overview

The CTB06-1200SW 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 substitute parts necessary for new designs and ongoing production requirements. 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

CTB06-1200SW

Sensata-CrydomIn Stock: 733CTB06-1200SW Datasheet

Current PartRFQ

TXDV1212RG

STMicroelectronicsIn Stock: 10328TXDV1212RG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Voltage Rating: Off-state voltage must be 1.2 kV or greater to maintain electrical safety margins
• Package Type: TO-220AB through-hole configuration for mechanical and thermal compatibility
• Operating Temperature Range: -40°C to 125°C (TJ) to ensure functional reliability across specified conditions
• Configuration: Single TRIAC configuration for direct pin-compatible replacement

The TXDV1212RG from STMicroelectronics meets these core substitution criteria. While it is classified as a Standard TRIAC rather than Logic - Sensitive Gate, it maintains the same voltage rating, package type, and operating temperature range. The on-state current rating of 12 A exceeds the original 6 A specification, providing additional current capacity. Gate trigger parameters differ due to the standard gate design, which may require gate drive circuit evaluation in applications with tight gate current budgets.

Parameter Comparison

Engineering Selection Recommendations

The TXDV1212RG is an active product with ROHS3 compliance, addressing the obsolescence of the CTB06-1200SW. Both components share identical voltage ratings, operating temperature ranges, and TO-220AB package specifications, establishing mechanical and thermal compatibility.

The primary design consideration is the gate trigger parameter difference. The CTB06-1200SW requires a maximum of 10 mA gate trigger current, while the TXDV1212RG requires up to 100 mA. Applications with gate drive circuits designed for sensitive gate operation must evaluate whether existing gate drive capacity can accommodate the higher gate current requirement of the substitute part. The increased on-state current rating (12 A versus 6 A) and surge current ratings provide additional design margin in applications where the original 6 A specification was limiting.

Both components carry REACH Unaffected status and are classified under HTSUS 8541.30.0080, confirming regulatory alignment for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the TXDV1212RG directly replace the CTB06-1200SW in existing designs?

A: Pin-to-pin replacement is possible due to identical TO-220AB package configuration. However, gate drive circuit evaluation is required because the TXDV1212RG has a maximum gate trigger current of 100 mA compared to the original 10 mA specification. Verify that the gate drive circuit can supply this higher current.

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

A: Logic - Sensitive Gate TRIACs are designed to trigger with lower gate current, typically 10 mA or less, making them suitable for direct microcontroller or logic-level gate drive. Standard TRIACs require higher gate current (typically 50-100 mA) and are used in applications with dedicated gate drive circuits. The TXDV1212RG is a Standard type and requires appropriate gate drive design.

Q: Are there any compliance or regulatory differences between these parts?

A: The TXDV1212RG is ROHS3 compliant, while the CTB06-1200SW status is not specified. Both are REACH Unaffected. For applications subject to RoHS regulations, the TXDV1212RG provides documented compliance.

Q: Does the higher on-state current rating of the TXDV1212RG affect thermal design?

A: The TXDV1212RG has a 12 A on-state rating versus 6 A for the original part. If the application operates at or near the original 6 A specification, thermal performance will be equivalent or improved. Applications operating above 6 A benefit from the higher current capacity. Thermal design should be verified based on actual operating current and duty cycle.

Q: What is the inventory status of these parts?

A: The CTB06-1200SW is obsolete with 718 pieces in stock. The TXDV1212RG is an active product with 10,300 pieces available, ensuring long-term supply continuity for new designs and production.