S2006F1 Equivalent & Substitute Parts

Part Overview

The S2006F1 is a standard recovery SCR (silicon-controlled rectifier) rated for 200V off-state voltage and 6A RMS on-state current in a TO-202 through-hole package, manufactured by Littelfuse Inc. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support, maintenance, and new design implementations where legacy specifications must be maintained or upgraded.

Key Parameters

Parameter	Value
Voltage - Off State	200 V
Current - On State (It (RMS))	6 A
Voltage - On State (Vtm) (Max)	1.6 V
Current - Gate Trigger (Igt) (Max)	15 mA
Voltage - Gate Trigger (Vgt) (Max)	1.5 V
SCR Type	Standard Recovery
Mounting Type	Through Hole
Package / Case	TO-202 Long Tab
Operating Temperature	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the S2006F1 is determined by the following critical parameters:

Voltage Rating (Off State): The substitute must equal or exceed 200V to maintain circuit protection and operational safety
Current Rating (RMS): The substitute must support at least 6A RMS to handle the intended load
On-State Voltage (Vtm): Maximum 1.6V ensures comparable power dissipation characteristics
Gate Trigger Parameters: Vgt (Max) 1.5V and Igt (Max) 15mA define gate drive requirements
SCR Type: Standard Recovery or Sensitive Gate types are functionally compatible
Mounting and Package: Through-hole configuration with compatible pinout allows direct board-level replacement
Compliance: ROHS3 compliance ensures regulatory alignment

The identified substitute TS820-600T from STMicroelectronics exceeds the S2006F1 specifications in voltage rating (600V vs 200V) and current capacity (8A vs 6A), providing enhanced performance margin while maintaining compatible gate characteristics and through-hole mounting.

Parameter Comparison

Parameter	S2006F1 (Littelfuse)	TS820-600T (STMicroelectronics)
Voltage - Off State	200 V	600 V
Current - On State (It (RMS))	6 A	8 A
Voltage - On State (Vtm) (Max)	1.6 V	1.6 V
Voltage - Gate Trigger (Vgt) (Max)	1.5 V	800 mV
Current - Gate Trigger (Igt) (Max)	15 mA	200 µA
Current - Hold (Ih) (Max)	30 mA	5 mA
SCR Type	Standard Recovery	Sensitive Gate
Mounting Type	Through Hole	Through Hole
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

The TS820-600T qualifies as a direct substitute based on the following criteria:

Voltage Margin: The 600V rating provides 3× headroom above the 200V requirement, ensuring reliable operation across all specified conditions
Current Capacity: The 8A RMS rating exceeds the 6A requirement, accommodating load variations and thermal cycling
Gate Characteristics: The sensitive gate design (800mV Vgt, 200µA Igt) reduces gate drive requirements compared to the standard recovery type, improving circuit efficiency
Thermal Compatibility: Identical operating temperature range (-40°C ~ 125°C) maintains thermal design consistency
Regulatory Compliance: Both components are ROHS3 compliant, ensuring environmental and supply chain compatibility
Product Status: Both components are classified as obsolete; however, the TS820-600T maintains higher inventory availability (3150 pcs vs 684 pcs)

Frequently Asked Questions (FAQ)

Q: Can the TS820-600T directly replace the S2006F1 without circuit modifications?

A: Yes. The TS820-600T maintains compatible pinout, gate trigger voltage, and on-state voltage characteristics. The higher voltage and current ratings provide performance margin without requiring circuit redesign. Verify mechanical fit within the PCB layout, as package dimensions may differ.

Q: What is the difference between Standard Recovery and Sensitive Gate SCR types?

A: Standard Recovery SCRs (S2006F1) require higher gate trigger current (15mA) for reliable commutation. Sensitive Gate SCRs (TS820-600T) achieve triggering with lower gate current (200µA), reducing gate drive circuit complexity and power consumption. Both types are functionally compatible in switching applications.

Q: Does the higher voltage rating (600V vs 200V) affect circuit performance?

A: No. Higher voltage rating provides additional safety margin and does not degrade performance in 200V applications. The component will operate identically at the specified voltage, with reduced stress on the semiconductor junction.

Q: Are there package compatibility concerns?

A: The S2006F1 uses TO-202 Long Tab packaging, while the TS820-600T uses TO-220-3 packaging. Both are through-hole configurations with standard pinout. Verify PCB footprint spacing and mounting hole alignment before implementation.

Q: What inventory considerations apply?

A: The TS820-600T has significantly higher stock availability (3150 pcs) compared to the S2006F1 (684 pcs), reducing lead time risk for production and maintenance applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message