S6008VTP SCR 600V 8A Thyristor Equivalent & Substitute Parts

Part Overview

The S6008VTP is an active-status silicon-controlled rectifier (SCR) manufactured by Littelfuse Inc., rated for 600V off-state voltage and 8A RMS on-state current in a through-hole TO-251 package. This standard recovery SCR is designed for applications requiring reliable thyristor switching at moderate current levels within the 600V voltage class. Equivalent and substitute parts are identified based on matching electrical ratings, package compatibility, and operational characteristics to ensure functional interchangeability in circuit designs.

Substiute Parts

S6008VTP

Littelfuse Inc.In Stock: 965S6008VTP Datasheet

Current PartRFQ

MCR708A1G

Littelfuse Inc.In Stock: 8448MCR708A1G Datasheet

MFR RecommendedRFQ

TN1215-600H

STMicroelectronicsIn Stock: 2158TN1215-600H Datasheet

MFR RecommendedRFQ

TS1220-600H

STMicroelectronicsIn Stock: 41320TS1220-600H Datasheet

MFR RecommendedRFQ

TS820-600H

STMicroelectronicsIn Stock: 2173TS820-600H Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the S6008VTP is determined by the following criteria:

Primary Matching Parameters:

• Off-state voltage rating of 600V
• Through-hole mounting configuration with TO-251 package compatibility
• Operating temperature range of -40°C to 125°C
• RoHS3 compliance and REACH unaffected status

Current Rating Considerations: Substitute parts are grouped by on-state RMS current capacity. The S6008VTP operates at 8A RMS; substitutes with equal or higher current ratings (8A, 12A) maintain full functional compatibility. Parts with lower current ratings (4A) are listed but represent downrated alternatives suitable only for reduced-current applications.

SCR Type Variations: The main part uses standard recovery technology. Sensitive gate variants (TS1220-600H, TS820-600H) offer lower gate trigger voltage and current requirements, providing enhanced gate sensitivity while maintaining identical voltage and current ratings where applicable.

Parameter Comparison

Engineering Selection Recommendations

Direct Through-Hole Substitutes (Recommended for Pin-Compatible Replacement):

TN1215-600H and TS1220-600H are the primary through-hole alternatives, both maintaining TO-251 package geometry identical to the S6008VTP. TN1215-600H provides increased current capacity at 12A RMS with standard recovery characteristics. TS1220-600H offers the same 12A RMS rating with sensitive gate operation, reducing gate trigger requirements. Both parts maintain the full -40°C to 125°C operating range and ROHS3 compliance.

TS820-600H matches the S6008VTP current rating at 8A RMS while providing sensitive gate characteristics in the same TO-251 package, offering direct functional substitution with enhanced gate sensitivity.

Current-Rated Alternative (Downrated Application):

MCR708A1G is a Littelfuse sensitive gate SCR rated at 4A RMS, suitable only for applications where the 8A current requirement can be reduced. This part operates at a reduced temperature maximum of 110°C and uses surface-mount TO-252 packaging, requiring PCB layout modification. Selection of this part is appropriate only when circuit current demands are confirmed below 4A RMS.

Compliance and Status:

All substitute parts carry active product status, ROHS3 compliance, and REACH unaffected designation, matching the regulatory profile of the S6008VTP.

Frequently Asked Questions (FAQ)

Q: Can TS1220-600H directly replace S6008VTP in existing PCB designs?

A: Yes. TS1220-600H maintains identical TO-251 package pinout and through-hole mounting configuration. The 12A RMS rating exceeds the 8A requirement, and sensitive gate operation is functionally compatible with standard gate circuits. No PCB modification is required.

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

A: Standard recovery SCRs (S6008VTP, TN1215-600H) require higher gate trigger voltage (1.3V to 1.5V) and current (15mA) for reliable switching. Sensitive gate variants (TS1220-600H, TS820-600H) reduce these requirements to 0.8V and 200µA respectively, enabling operation with lower-power gate drive circuits. Both types are electrically interchangeable when gate drive capability is sufficient.

Q: Is MCR708A1G suitable as a substitute?

A: MCR708A1G is not recommended as a direct substitute due to three limiting factors: reduced current rating (4A versus 8A), surface-mount packaging requiring PCB redesign, and lower maximum operating temperature (110°C versus 125°C). Selection is appropriate only for applications confirmed to operate below 4A RMS with surface-mount capability.

Q: Do all substitute parts maintain the same voltage ratings?

A: Yes. All listed substitutes maintain 600V off-state voltage rating and 1.6V maximum on-state voltage (except MCR708A1G at 2.2V), ensuring compatibility with 600V circuit designs.

Q: What packaging considerations apply to substitute selection?

A: S6008VTP, TN1215-600H, TS1220-600H, and TS820-600H all use through-hole TO-251 packaging with identical pinout, enabling direct socket substitution. MCR708A1G uses surface-mount TO-252 packaging and requires PCB layout modification; through-hole substitutes are preferred for existing designs.