S2004DS2TP Equivalent & Substitute Parts

Part Overview

The S2004DS2TP is a Sensitive Gate SCR (Silicon Controlled Rectifier) rated for 200V off-state voltage with 4A RMS current capability in a surface mount TO-252 (DPAK) package. This component is classified as obsolete, making equivalent 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

S2004DS2TP

LittelfuseIn Stock: 952S2004DS2TP Datasheet

Current PartRFQ

S4004DS2TP

Littelfuse Inc.In Stock: 1031S4004DS2TP Datasheet

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S6004DS2TP

Littelfuse Inc.In Stock: 959S6004DS2TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the S2004DS2TP is determined by the following criteria:

Electrical Compatibility Parameters:

• SCR Type: Sensitive Gate (required match)
• Voltage - Gate Trigger (Vgt) Max: 800 mV (required match)
• Current - Gate Trigger (Igt) Max: 200 µA (required match)
• Voltage - On State (Vtm) Max: 1.6 V (required match)
• Current - On State (It RMS) Max: 4 A (required match)
• Current - Hold (Ih) Max: 6 mA (required match)
• Operating Temperature: -40°C to 110°C (required match)

Mechanical Compatibility Parameters:

• Mounting Type: Surface Mount (required match)
• Package / Case: TO-252-3, DPAK (required match)

Voltage Rating Consideration: The S2004DS2TP operates at 200V off-state voltage. Substitute parts with higher voltage ratings (400V, 600V) maintain all other electrical parameters and are electrically compatible for applications where the original 200V rating is sufficient. Higher voltage-rated devices do not degrade performance in lower-voltage applications when all other parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

S4004DS2TP (400V Rating): This substitute maintains all electrical and mechanical parameters of the S2004DS2TP while offering a higher voltage rating. The part is in active production status with ROHS3 compliance and MSL 1 rating. Selection is appropriate for applications where the 200V rating of the original part is adequate and higher voltage margin is acceptable.

S6004DS2TP (600V Rating): This substitute maintains all electrical and mechanical parameters of the S2004DS2TP with the highest voltage rating among available options. The part is in active production status with ROHS3 compliance and MSL 1 rating. Selection is appropriate for applications requiring maximum voltage headroom while maintaining identical gate drive and current characteristics.

Both substitutes are manufactured by Littelfuse Inc. and are available in active production, eliminating obsolescence risk associated with the original S2004DS2TP.

Frequently Asked Questions (FAQ)

Q: Can S4004DS2TP or S6004DS2TP be used as direct replacements for S2004DS2TP?

A: Yes. Both substitutes maintain identical gate trigger voltage, gate trigger current, on-state voltage, on-state current, hold current, SCR type classification, operating temperature range, mounting type, and package configuration. The higher voltage ratings do not affect performance in circuits designed for 200V operation.

Q: What is the difference between the three parts?

A: The primary difference is the off-state voltage rating: S2004DS2TP operates at 200V, S4004DS2TP at 400V, and S6004DS2TP at 600V. All other electrical characteristics and mechanical specifications are identical.

Q: Are there any compliance or certification differences?

A: All three parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. The S4004DS2TP and S6004DS2TP include REACH Unaffected status documentation.

Q: Why is the S2004DS2TP obsolete?

A: The S2004DS2TP is classified as obsolete by the manufacturer. The S4004DS2TP and S6004DS2TP are active production alternatives that provide equivalent functionality with higher voltage ratings.

Q: Are the packages identical?

A: Yes. All three parts use the TO-252-3 DPAK (2 Leads + Tab) SC-63 package, ensuring identical PCB footprint and mounting requirements.

Q: What is the inventory status?

A: S2004DS2TP has 887 pieces in stock (obsolete status). S4004DS2TP has 958 pieces available. S6004DS2TP has 924 pieces available. Both active substitutes are supplied in tube packaging.