S2006VS2TP Equivalent & Substitute Parts

Part Overview

The S2006VS2TP is a 200V, 6A sensitive gate SCR (silicon controlled rectifier) manufactured by Littelfuse Inc. in TO-251 package configuration. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part maintains full RoHS3 compliance and operates across the industrial temperature range of -40°C to 110°C.

Substiute Parts

S2006VS2TP

Littelfuse Inc.In Stock: 1060S2006VS2TP Datasheet

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S4006VS2TP

Littelfuse Inc.In Stock: 937S4006VS2TP Datasheet

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S6006VS2TP

Littelfuse Inc.In Stock: 1105S6006VS2TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the S2006VS2TP is determined by the following criteria:

Mandatory Matching Parameters:

• SCR Type: Sensitive Gate (gate trigger characteristics must remain identical)
• Gate Trigger Voltage (Vgt) Max: 800 mV
• Gate Trigger Current (Igt) Max: 200 µA
• Voltage - On State (Vtm) Max: 1.6 V
• Current - Hold (Ih) Max: 6 mA
• Current - On State (It RMS) Max: 6 A
• Package / Case: TO-251-3 Short Leads, IPak
• Operating Temperature: -40°C ~ 110°C
• Mounting Type: Through Hole

Allowable Variation:

• Voltage - Off State: May be equal to or greater than 200V (higher voltage rating provides backward compatibility)
• Product Status: Active status preferred for long-term availability

The substitute parts S4006VS2TP and S6006VS2TP meet all mandatory parameters while offering higher off-state voltage ratings (400V and 600V respectively), making them suitable replacements in applications where the original 200V specification can accommodate higher voltage tolerance.

Parameter Comparison

Engineering Selection Recommendations

S4006VS2TP (400V Rating): This substitute provides a 2x voltage margin over the original S2006VS2TP specification while maintaining identical gate trigger and on-state characteristics. Active product status ensures long-term availability and supply chain continuity. Suitable for applications where circuit design permits higher voltage tolerance without performance degradation.

S6006VS2TP (600V Rating): This substitute provides a 3x voltage margin over the original specification with identical functional parameters. Active product status and REACH compliance certification support extended product lifecycle requirements. Applicable in designs where enhanced voltage headroom is beneficial or required.

Both substitutes maintain full electrical and thermal compatibility with the original part through identical gate trigger thresholds, on-state voltage drops, and holding current specifications. The TO-251 package footprint and lead configuration remain unchanged, enabling direct mechanical substitution without PCB redesign.

Frequently Asked Questions (FAQ)

Q: Can S4006VS2TP or S6006VS2TP be used as direct replacements for S2006VS2TP?

A: Yes, both parts are direct substitutes. All gate trigger parameters, on-state characteristics, and thermal specifications are identical. The higher voltage ratings (400V and 600V) provide additional design margin while maintaining backward compatibility with the original 200V application circuit.

Q: What is the primary difference between the three parts?

A: The off-state voltage rating is the only electrical difference. S2006VS2TP is rated for 200V, S4006VS2TP for 400V, and S6006VS2TP for 600V. All other parameters—gate trigger voltage, gate trigger current, on-state voltage, holding current, and current rating—are identical.

Q: Are there package or mounting differences?

A: No. All three parts use the TO-251-3 Short Leads (IPak) package with through-hole mounting. PCB footprints and lead spacing are identical, requiring no layout modifications.

Q: Why is the S2006VS2TP obsolete while substitutes are active?

A: The S2006VS2TP has been discontinued by Littelfuse Inc. The S4006VS2TP and S6006VS2TP remain in active production, providing long-term supply availability and design support for new and legacy applications.

Q: Which substitute should be selected for new designs?

A: Selection depends on circuit voltage requirements. If the application operates at or below 200V, either S4006VS2TP or S6006VS2TP may be used. For applications requiring specific voltage margin or operating within defined voltage ranges, choose the substitute with the closest matching off-state voltage rating that exceeds the circuit requirement.

Q: Are there compliance or certification differences?

A: All three parts are RoHS3 compliant. S4006VS2TP and S6006VS2TP carry REACH Unaffected certification, providing additional regulatory assurance for international applications.