S2008VS2TP Equivalent & Substitute Parts

Part Overview

The S2008VS2TP is a Sensitive Gate SCR (Silicon Controlled Rectifier) rated for 200V off-state voltage with 8A RMS current capacity in a TO-251 through-hole package. Manufactured by Littelfuse Inc., this component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part maintains ROHS3 compliance and operates across the industrial temperature range of -40°C to 110°C.

Substiute Parts

S2008VS2TP

Littelfuse Inc.In Stock: 1018S2008VS2TP Datasheet

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S4008VS2TP

LittelfuseIn Stock: 1032S4008VS2TP Datasheet

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S6008VS2TP

Littelfuse Inc.In Stock: 836S6008VS2TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the S2008VS2TP are qualified based on the following criteria:

Electrical Compatibility Parameters:

• Voltage - Gate Trigger (Vgt) (Max): 800 mV
• Current - Gate Trigger (Igt) (Max): 200 µA
• Voltage - On State (Vtm) (Max): 1.6 V
• Current - On State (It AV) (Max): 5.1 A
• Current - On State (It RMS) (Max): 8 A
• Current - Hold (Ih) (Max): 6 mA
• Current - Off State (Max): 5 µA
• Current - Non Rep. Surge 50, 60Hz (Itsm): 83A, 100A
• SCR Type: Sensitive Gate

Mechanical & Environmental Compatibility Parameters:

• Package / Case: TO-251-3 Short Leads, IPak, TO-251AA
• Mounting Type: Through Hole
• Operating Temperature: -40°C ~ 110°C
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• ECCN: EAR99
• HTSUS: 8541.30.0080

The off-state voltage rating may be increased in substitute parts while maintaining all other electrical and mechanical parameters. This allows for higher voltage margin applications while preserving gate sensitivity, on-state characteristics, and thermal performance.

Parameter Comparison

Engineering Selection Recommendations

S4008VS2TP (400V Rating): This substitute provides a 2x voltage margin over the original S2008VS2TP while maintaining identical gate sensitivity, on-state voltage drop, and current ratings. The part is in active production status with ROHS3 compliance and REACH unaffected designation. Suitable for applications requiring increased voltage headroom without circuit redesign.

S6008VS2TP (600V Rating): This substitute provides a 3x voltage margin over the original S2008VS2TP with identical electrical performance in gate and on-state characteristics. The part is in active production status with ROHS3 compliance and REACH unaffected designation. Suitable for high-voltage applications or designs requiring maximum voltage margin within the same package footprint.

Both substitute parts maintain identical gate trigger thresholds, on-state voltage characteristics, and thermal operating range, ensuring direct functional compatibility in existing circuit designs. Selection between S4008VS2TP and S6008VS2TP depends on the application's voltage requirements and design margin specifications.

Frequently Asked Questions (FAQ)

Q: Can S4008VS2TP or S6008VS2TP be used as direct replacements for S2008VS2TP?

A: Yes, both parts are direct functional replacements. They maintain identical gate trigger voltage (800 mV max), gate trigger current (200 µA max), on-state voltage drop (1.6 V max), and RMS current rating (8 A). The higher off-state voltage ratings (400V and 600V respectively) provide increased voltage margin while preserving all other electrical characteristics.

Q: What is the difference between S4008VS2TP and S6008VS2TP?

A: The primary difference is the off-state voltage rating: S4008VS2TP is rated for 400V while S6008VS2TP is rated for 600V. All other electrical parameters, including gate sensitivity, on-state characteristics, current ratings, and thermal performance, are identical. Selection depends on the application's maximum voltage exposure.

Q: Are the substitute parts pin-compatible with S2008VS2TP?

A: Yes. All three parts use the TO-251-3 Short Leads package (IPak, TO-251AA) with identical through-hole mounting configuration. No PCB layout modifications are required.

Q: What is the product status difference between the main part and substitutes?

A: S2008VS2TP is classified as obsolete, while both S4008VS2TP and S6008VS2TP are in active production. Active status ensures ongoing availability and manufacturing support.

Q: Do the substitute parts maintain the same compliance certifications?

A: Yes. Both S4008VS2TP and S6008VS2TP are ROHS3 compliant with EAR99 ECCN classification and identical HTSUS codes (8541.30.0080). S6008VS2TP additionally carries REACH unaffected designation, as does S4008VS2TP.

Q: What is the moisture sensitivity level for these parts?

A: All three parts maintain MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.