S6006VS2TP Equivalent & Substitute Parts

Part Overview

The S6006VS2TP is a 600V, 6A sensitive gate SCR (silicon controlled rectifier) manufactured by Littelfuse Inc. in a through-hole TO-251 (V-Pak/I-Pak) package. This thyristor is designed for AC and DC switching applications requiring low gate trigger requirements. The part is active, ROHS3 compliant, and currently in stock with 1032 units available. Equivalent and substitute parts are identified based on matching voltage ratings, gate sensitivity characteristics, package compatibility, and current handling capabilities within the TO-251 family.

Key Parameters

Parameter	S6006VS2TP
Voltage - Off State	600 V
Current - On State (It RMS)	6 A
Voltage - Gate Trigger (Vgt) Max	800 mV
Current - Gate Trigger (Igt) Max	200 µA
Voltage - On State (Vtm) Max	1.6 V
SCR Type	Sensitive Gate
Mounting Type	Through Hole
Package / Case	TO-251-3 Short Leads, IPak, TO-251AA
Operating Temperature	-40°C ~ 110°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the S6006VS2TP is determined by the following critical parameters:

Voltage Rating: All substitutes must maintain 600V off-state voltage rating
Gate Sensitivity: Sensitive gate type (Vgt ≤ 800 mV, Igt ≤ 200 µA) ensures compatibility with existing gate drive circuits
Package Type: TO-251 through-hole mounting maintains PCB layout compatibility
Current Rating: RMS current capacity determines application suitability; lower ratings (4A) are suitable for reduced-load applications, higher ratings (8A, 10A, 12A) provide design margin
On-State Voltage: Maximum Vtm of 1.6V ensures thermal performance consistency
Temperature Range: Operating range of -40°C to 110°C (or extended to 125°C) maintains environmental compatibility

Substitutes are grouped into three categories:

Direct Parametric Equivalents (Same Mounting, Sensitive Gate): S6004VS2TP (4A), S6010VS2TP (10A), and TS820-600H (8A) maintain identical gate sensitivity and TO-251 through-hole packaging.

Manufacturer Recommended Alternatives (Different Mounting): MCR708A1G is a surface-mount DPAK equivalent with reduced current rating (4A) and lower gate trigger current (75 µA), suitable for redesigned layouts.

Cross-Manufacturer Equivalents (Extended Temperature): TN1215-600H and TS1220-600H are STMicroelectronics alternatives with 12A ratings and extended temperature range to 125°C; TN1215-600H uses standard recovery type with higher gate trigger requirements (1.3V, 15mA).

Parameter Comparison

Parameter	S6006VS2TP	S6004VS2TP	S6010VS2TP	TS820-600H	TS1220-600H	TN1215-600H	MCR708A1G
Manufacturer	Littelfuse	Littelfuse	Littelfuse	STMicroelectronics	STMicroelectronics	STMicroelectronics	Littelfuse
Voltage - Off State	600 V	600 V	600 V	600 V	600 V	600 V	600 V
Current - On State (It RMS)	6 A	4 A	10 A	8 A	12 A	12 A	4 A
Voltage - Gate Trigger (Vgt) Max	800 mV	800 mV	800 mV	800 mV	800 mV	1.3 V	800 mV
Current - Gate Trigger (Igt) Max	200 µA	200 µA	200 µA	200 µA	200 µA	15 mA	75 µA
Voltage - On State (Vtm) Max	1.6 V	1.6 V	1.6 V	1.6 V	1.6 V	1.6 V	2.2 V
SCR Type	Sensitive Gate	Sensitive Gate	Sensitive Gate	Sensitive Gate	Sensitive Gate	Standard Recovery	Sensitive Gate
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Surface Mount
Package / Case	TO-251-3	TO-251-3	TO-251-3	I-PAK	TO-251-3	TO-251-3	TO-252 DPAK
Operating Temperature	-40°C ~ 110°C	-40°C ~ 110°C	-40°C ~ 110°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 110°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory Status	1032 Pcs	3834 Pcs	1800 Pcs	2100 Pcs	41300 Pcs	2100 Pcs	8425 Pcs

Engineering Selection Recommendations

For Direct Pin-Compatible Replacement: S6004VS2TP, S6010VS2TP, and TS820-600H are suitable direct substitutes maintaining TO-251 through-hole mounting, sensitive gate characteristics, and ROHS3 compliance. Selection between these depends on required current capacity: S6004VS2TP for 4A applications, TS820-600H for 8A applications, and S6010VS2TP for 10A applications.

For Extended Temperature Operation: TS1220-600H and TN1215-600H extend operating range to 125°C while maintaining 600V rating and TO-251 packaging. TS1220-600H preserves sensitive gate characteristics (800 mV, 200 µA), while TN1215-600H uses standard recovery type with higher gate trigger requirements (1.3V, 15mA) and is suitable only if gate drive circuitry accommodates these higher values.

For Surface-Mount Redesign: MCR708A1G provides a ROHS3-compliant surface-mount alternative in TO-252 DPAK package with 4A rating. This part features lower gate trigger current (75 µA) and higher on-state voltage (2.2V), requiring circuit validation for thermal performance.

Compliance Verification: All listed substitutes maintain ROHS3 compliance, REACH unaffected status, and EAR99 export classification matching the original S6006VS2TP.

Frequently Asked Questions (FAQ)

Q: Can S6004VS2TP replace S6006VS2TP in all applications?

A: S6004VS2TP is a parametric equivalent with identical gate sensitivity (800 mV, 200 µA) and on-state voltage (1.6V) but reduced RMS current rating (4A vs. 6A). It is suitable for applications where load current does not exceed 4A. For applications requiring the full 6A capacity, S6010VS2TP or TS820-600H are recommended.

Q: What is the difference between sensitive gate and standard recovery SCRs?

A: Sensitive gate SCRs (S6006VS2TP, TS1220-600H) require lower gate trigger voltage (800 mV) and current (200 µA), enabling simpler gate drive circuits. Standard recovery SCRs (TN1215-600H) require higher gate trigger values (1.3V, 15mA) and are used in applications where faster turn-off characteristics are required. TN1215-600H substitution requires gate drive circuit redesign.

Q: Are TO-251 and I-PAK packages interchangeable?

A: TO-251 and I-PAK are equivalent package designations for the same physical form factor (TO-251-3 Short Leads). All listed through-hole substitutes use compatible TO-251/I-PAK packaging and are pin-compatible with S6006VS2TP.

Q: Can MCR708A1G be used as a direct replacement?

A: MCR708A1G is not a direct replacement due to surface-mount TO-252 DPAK packaging versus through-hole TO-251 mounting. PCB layout redesign is required. Additionally, the 4A rating and 2.2V on-state voltage differ from the original part. Use only when PCB redesign is feasible and thermal performance is validated.

Q: What is the impact of extended temperature range (125°C vs. 110°C)?

A: TS1220-600H and TN1215-600H support operation to 125°C, providing additional thermal margin for high-ambient or high-dissipation applications. S6006VS2TP is rated to 110°C. Extended temperature parts are suitable for applications exceeding 110°C ambient or junction temperature requirements.

Q: Which substitute offers the highest current capacity?

A: TS1220-600H and TN1215-600H both provide 12A RMS current rating, the highest among listed substitutes. TS1220-600H maintains sensitive gate characteristics matching S6006VS2TP gate drive requirements. TN1215-600H requires higher gate trigger values and is suitable only if gate drive circuitry is redesigned.

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