2N6400G SCR Equivalent & Substitute Parts

Part Overview

The 2N6400G is a 50V, 16A standard recovery thyristor (SCR) manufactured by Littelfuse Inc., housed in a TO-220AB package for through-hole mounting applications. This component is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance can be achieved within the specified parameter tolerances while maintaining mechanical compatibility and regulatory compliance.

Substiute Parts

2N6400G

Littelfuse Inc.In Stock: 17372N6400G Datasheet

Current PartRFQ

TYN616RG

STMicroelectronicsIn Stock: 28563TYN616RG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2N6400G is determined by the following criteria:

• Voltage Rating: Off-state voltage must be equal to or greater than 50V to maintain circuit protection margins
• Current Rating: RMS on-state current must support 16A continuous operation
• Gate Trigger Parameters: Vgt and Igt must remain within specified maximums to ensure reliable gate control
• On-State Voltage: Vtm must not exceed 1.7V to prevent excessive power dissipation
• Hold Current: Ih must not exceed 40mA for proper latching behavior
• Surge Current: Itsm capability must support 160A non-repetitive surge conditions
• Package Compatibility: TO-220-3 through-hole mounting required for mechanical fit
• Temperature Range: Operating range must encompass -40°C to 125°C
• Regulatory Compliance: RoHS3 compliance and REACH unaffected status required

The TYN616RG meets these substitution criteria with equivalent or superior electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TYN616RG qualifies as a direct substitute for the 2N6400G based on the following engineering criteria:

• Both components maintain identical RMS current handling at 16A and identical operating temperature range (-40°C to 125°C)
• Gate trigger parameters are equivalent or superior (TYN616RG: Igt 25mA vs. 2N6400G: 30mA)
• On-state voltage is lower in the substitute (TYN616RG: 1.6V vs. 2N6400G: 1.7V), reducing power dissipation
• The TYN616RG provides higher off-state voltage rating (600V vs. 50V), offering enhanced circuit protection margin
• Both components are classified as Active product status with full RoHS3 compliance and REACH unaffected designation
• Identical TO-220-3 package and through-hole mounting configuration ensure mechanical compatibility
• Both components support 160A non-repetitive surge current requirements

Selection between these components should be based on circuit voltage requirements and thermal design considerations.

Frequently Asked Questions (FAQ)

Q: Can the TYN616RG replace the 2N6400G in all applications?

A: The TYN616RG is electrically compatible with the 2N6400G for applications operating at or below 50V. The higher voltage rating (600V) of the TYN616RG provides additional circuit protection margin. Both components share identical current ratings, gate trigger characteristics, and package specifications.

Q: What is the primary difference between these two SCR models?

A: The primary difference is the off-state voltage rating: 2N6400G operates at 50V maximum, while TYN616RG operates at 600V maximum. All other electrical parameters—including RMS current (16A), gate trigger voltage (1.5V), and on-state voltage (1.6-1.7V)—are equivalent or superior in the substitute.

Q: Are both components available in the same package?

A: Yes. Both the 2N6400G and TYN616RG use the TO-220-3 package with through-hole mounting configuration, ensuring identical mechanical fit and thermal interface requirements.

Q: Do both components meet the same regulatory standards?

A: Yes. Both components are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.

Q: What should be considered when selecting between these two parts?

A: Selection should be based on circuit voltage requirements and thermal design. The 2N6400G is suitable for 50V applications, while the TYN616RG provides higher voltage margin for circuits requiring additional protection. On-state voltage characteristics are nearly identical, with the TYN616RG offering slightly lower dissipation (1.6V vs. 1.7V).