S4010VS2TP Equivalent & Substitute Parts

Part Overview

The S4010VS2TP is a Sensitive Gate SCR (Silicon Controlled Rectifier) rated for 400V off-state voltage with 10A RMS on-state current capacity. Manufactured by Littelfuse Inc., this thyristor is designed for through-hole mounting in TO-251 (V-Pak/I-Pak) package configuration. The device is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level rating. Substitute parts may be required due to inventory constraints, application-specific current requirements, or design optimization needs where lower current ratings are acceptable.

Key Parameters

Parameter	Value	Unit
Voltage - Off State	400	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	10	A
Current - Hold (Ih) Max	6	mA
Operating Temperature Range	-40 to 110	°C
Package Type	TO-251-3 Short Leads	-
SCR Type	Sensitive Gate	-

Substitute Part Grouping Explanation

The S4004VS2TP qualifies as a parametric equivalent based on the following matching criteria:

Matching Parameters (Substitution Basis):

Voltage - Off State: 400V (identical)
Voltage - Gate Trigger (Vgt) Max: 800 mV (identical)
Current - Gate Trigger (Igt) Max: 200 µA (identical)
Voltage - On State (Vtm) Max: 1.6V (identical)
Current - Hold (Ih) Max: 6 mA (identical)
Operating Temperature Range: -40°C to 110°C (identical)
Mounting Type: Through Hole (identical)
Package / Case: TO-251-3 Short Leads, IPak, TO-251AA (compatible)
SCR Type: Sensitive Gate (identical)
RoHS Status: ROHS3 Compliant (identical)
REACH Status: REACH Unaffected (identical)

Differing Parameter (Current Rating):

Current - On State (It RMS) Max: 4A (S4004VS2TP) vs. 10A (S4010VS2TP)

The S4004VS2TP is suitable as a substitute only in applications where the maximum on-state RMS current requirement does not exceed 4A. This part maintains identical gate trigger characteristics, thermal operating range, and electrical performance at lower current levels.

Parameter Comparison

Parameter	S4010VS2TP (Main)	S4004VS2TP (Substitute)	Unit
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	-
Category	Thyristors	Thyristors	-
Voltage - Off State	400	400	V
Voltage - Gate Trigger (Vgt) Max	800	800	mV
Current - Gate Trigger (Igt) Max	200	200	µA
Voltage - On State (Vtm) Max	1.6	1.6	V
Current - On State (It RMS) Max	10	4	A
Current - Hold (Ih) Max	6	6	mA
Current - Off State Max	5	2	µA
Operating Temperature Range	-40 to 110	-40 to 110	°C
Package / Case	TO-251-3 Short Leads, IPak, TO-251AA	TO-251-3 Short Leads, IPak, TO-251AA	-
SCR Type	Sensitive Gate	Sensitive Gate	-
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	-
Product Status	Active	Active	-

Engineering Selection Recommendations

Both the S4010VS2TP and S4004VS2TP maintain active production status with identical ROHS3 compliance and REACH unaffected classification, ensuring regulatory consistency across substitution scenarios. The primary selection criterion is application current requirement. The S4010VS2TP is specified for circuits requiring up to 10A RMS on-state current, while the S4004VS2TP is limited to 4A RMS maximum. Gate trigger characteristics remain identical between both devices, ensuring equivalent control circuit compatibility. Package configuration and thermal operating range are identical, permitting direct PCB layout compatibility. Selection should be based solely on whether the application's maximum sustained current demand falls within the 4A RMS limit of the substitute part.

Frequently Asked Questions (FAQ)

Q: Can the S4004VS2TP replace the S4010VS2TP in any application?

A: The S4004VS2TP is a direct substitute only in applications where the maximum on-state RMS current does not exceed 4A. Gate trigger voltage, trigger current, on-state voltage drop, and thermal characteristics are identical. If your circuit requires sustained currents above 4A RMS, the S4010VS2TP must be used.

Q: Are the package dimensions identical between these parts?

A: Both parts use TO-251-3 Short Leads package configuration with IPak and TO-251AA designations. Physical footprint and lead spacing are compatible for direct PCB substitution.

Q: Do both parts have the same gate trigger sensitivity?

A: Yes. Both the S4010VS2TP and S4004VS2TP have identical gate trigger voltage (800 mV max) and gate trigger current (200 µA max) specifications. Control circuit design remains unchanged between parts.

Q: What is the difference in non-repetitive surge current between these parts?

A: The S4010VS2TP is rated for 83A (50Hz) and 100A (60Hz) non-repetitive surge current, while the S4004VS2TP is rated for 25A (50Hz) and 30A (60Hz). This reflects the lower continuous current rating of the substitute part.

Q: Are both parts RoHS compliant?

A: Yes. Both the S4010VS2TP and S4004VS2TP are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1) rating.

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