S2006DS2TP Equivalent & Substitute Parts

Part Overview

The S2006DS2TP is a Littelfuse sensitive gate SCR rated for 200V off-state voltage with 6A RMS current capability in a surface mount TO-252 (DPAK) package. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. Active alternatives with compatible electrical and mechanical characteristics are available to maintain circuit functionality.

Key Parameters

Parameter	Value
Voltage - Off State	200 V
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 (RMS)) (Max)	6 A
Current - Hold (Ih) (Max)	6 mA
SCR Type	Sensitive Gate
Operating Temperature	-40°C ~ 110°C
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the S2006DS2TP are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

SCR Type: Sensitive Gate (gate trigger characteristics must match)
Voltage - Gate Trigger (Vgt) (Max): 800 mV maximum
Current - Gate Trigger (Igt) (Max): 200 µA maximum
Voltage - On State (Vtm) (Max): 1.6 V maximum
Current - On State (It (RMS)) (Max): 6 A minimum
Current - Hold (Ih) (Max): 6 mA maximum
Operating Temperature Range: -40°C ~ 110°C
Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
Mounting Type: Surface Mount

The off-state voltage rating may be increased in substitute parts without affecting circuit compatibility, provided all other electrical parameters remain within specified limits. All substitute parts maintain identical gate trigger characteristics, on-state voltage drop, holding current, and thermal operating range.

Parameter Comparison

Parameter	S2006DS2TP	S4006DS2TP	S6006DS2TP
Manufacturer	Littelfuse	Littelfuse Inc.	Littelfuse
Voltage - Off State	200 V	400 V	600 V
Voltage - Gate Trigger (Vgt) (Max)	800 mV	800 mV	800 mV
Current - Gate Trigger (Igt) (Max)	200 µA	200 µA	200 µA
Voltage - On State (Vtm) (Max)	1.6 V	1.6 V	1.6 V
Current - On State (It (RMS)) (Max)	6 A	6 A	6 A
Current - Hold (Ih) (Max)	6 mA	6 mA	6 mA
Current - Off State (Max)	5 µA	5 µA	5 µA
SCR Type	Sensitive Gate	Sensitive Gate	Sensitive Gate
Operating Temperature	-40°C ~ 110°C	-40°C ~ 110°C	-40°C ~ 110°C
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

S4006DS2TP (400V Rating): This part is classified as active and maintains full electrical compatibility with the S2006DS2TP across all gate trigger, on-state, and thermal parameters. The increased off-state voltage rating of 400V provides enhanced voltage margin in applications where the original 200V rating is marginal. ROHS3 compliance is maintained.

S6006DS2TP (600V Rating): This part is classified as active and maintains full electrical compatibility with the S2006DS2TP across all gate trigger, on-state, and thermal parameters. The increased off-state voltage rating of 600V provides maximum voltage margin for applications subject to transient overvoltage conditions. ROHS3 compliance is maintained.

Both substitute parts are available in active production status, ensuring long-term supply continuity compared to the obsolete S2006DS2TP. Selection between S4006DS2TP and S6006DS2TP depends on the maximum off-state voltage present in the application circuit.

Frequently Asked Questions (FAQ)

Q: Can S4006DS2TP or S6006DS2TP be used as direct replacements for S2006DS2TP?

A: Yes. Both parts maintain identical gate trigger voltage (800 mV max), gate trigger current (200 µA max), on-state voltage drop (1.6 V max), holding current (6 mA max), and operating temperature range (-40°C ~ 110°C). The increased off-state voltage ratings do not affect circuit operation in applications designed for 200V operation.

Q: What is the difference between the three parts?

A: The primary difference is the off-state voltage rating: S2006DS2TP is rated 200V, S4006DS2TP is rated 400V, and S6006DS2TP is rated 600V. All other electrical and mechanical characteristics are identical.

Q: Are all three parts in the same package?

A: Yes. All three parts use the TO-252-3 DPAK (2 Leads + Tab) surface mount package with identical pinout and footprint compatibility.

Q: Why is the S2006DS2TP classified as obsolete?

A: The S2006DS2TP is no longer in active production. The S4006DS2TP and S6006DS2TP provide equivalent functionality with higher voltage ratings and active production status.

Q: Which substitute should I select for a new design?

A: Selection depends on the maximum off-state voltage in your application. If the circuit operates below 400V, either S4006DS2TP or S6006DS2TP is suitable. If the circuit operates below 600V, S6006DS2TP is suitable. Both are active production parts with long-term availability.

Q: Are there any compliance differences between the parts?

A: All three parts are ROHS3 compliant. S4006DS2TP and S6006DS2TP include REACH Unaffected status in addition to ROHS3 compliance.

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