S6008V SCR 600V 8A Thyristor - Equivalent & Substitute Parts

Part Overview

The S6008V is a standard recovery SCR (silicon-controlled rectifier) rated for 600V off-state voltage and 8A RMS on-state current in a through-hole TO-251 package. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical performance within the same voltage and current class while accommodating different gate characteristics and mounting technologies.

Substiute Parts

S6008V

Littelfuse Inc.In Stock: 956S6008V 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 is determined by the following criteria:

Primary Compatibility Requirements:

• Voltage - Off State: 600 V (exact match required)
• Current - On State (It RMS): equal to or greater than 8 A
• Voltage - On State (Vtm) Max: 1.6 V or lower
• Operating Temperature Range: minimum -40°C to 125°C
• RoHS3 Compliance: required

Secondary Considerations:

• SCR Type (Standard Recovery vs. Sensitive Gate) affects gate trigger requirements but does not prevent substitution
• Mounting Type (Through Hole) and Package (TO-251) are preferred for direct replacement but surface mount alternatives are listed where electrical parameters align
• Current - On State (It AV) and Current - Hold (Ih) variations are acceptable within the 600V/8A class

Substitute Parts Identified:

1. TN1215-600H (STMicroelectronics) - Direct through-hole replacement, 12A RMS rating
2. TS1220-600H (STMicroelectronics) - Direct through-hole replacement, 12A RMS rating, sensitive gate
3. TS820-600H (STMicroelectronics) - Direct through-hole replacement, 8A RMS rating, sensitive gate
4. MCR708A1G (Littelfuse Inc.) - Surface mount alternative, 4A RMS rating, sensitive gate

Parameter Comparison

Engineering Selection Recommendations

For Direct Through-Hole Replacement (Preferred):

TN1215-600H and TS1220-600H are the primary alternatives. Both maintain the TO-251 through-hole package, 600V rating, and exceed the 8A RMS requirement with 12A capability. TN1215-600H preserves standard recovery characteristics matching the original S6008V, while TS1220-600H offers sensitive gate operation with lower gate trigger requirements. Both are active products with ROHS3 compliance and full temperature range support (-40°C to 125°C).

TS820-600H provides an exact 8A RMS match in through-hole TO-251 packaging with active product status and ROHS3 compliance. The sensitive gate characteristic reduces gate trigger current to 200 µA compared to the original 15 mA, which may require circuit evaluation depending on gate drive implementation.

For Surface Mount Applications:

MCR708A1G is suitable only where circuit design accommodates surface mount technology and lower current capacity (4A RMS). The TO-252 DPAK package differs from the original TO-251. Operating temperature range is reduced to -40°C to 110°C. ROHS3 compliance is maintained.

Compliance and Availability:

All substitute parts carry ROHS3 compliance matching the original component. TN1215-600H, TS1220-600H, and TS820-600H are active products with substantial inventory availability (2,100 to 41,300 units). MCR708A1G is active with 8,425 units in stock.

Frequently Asked Questions (FAQ)

Q: Can TS1220-600H or TN1215-600H be used as direct replacements for S6008V?

A: Yes. Both parts maintain 600V off-state voltage, TO-251 through-hole packaging, and exceed the 8A RMS current requirement with 12A ratings. TN1215-600H matches the standard recovery type; TS1220-600H uses sensitive gate technology. Both support the full -40°C to 125°C operating range and are ROHS3 compliant.

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

A: Sensitive gate SCRs require lower gate trigger voltage (800 mV vs. 1.5 V) and current (200 µA vs. 15 mA) for activation. This reduces gate drive circuit complexity but may require circuit evaluation if the original design assumes standard gate characteristics.

Q: Is MCR708A1G a suitable replacement?

A: MCR708A1G is electrically compatible at 600V but has reduced current capacity (4A RMS vs. 8A RMS). It uses surface mount TO-252 packaging instead of through-hole TO-251, and the operating temperature range is limited to -40°C to 110°C. Use only where circuit design accommodates these differences.

Q: Why does TS820-600H have lower gate trigger current than S6008V?

A: TS820-600H is a sensitive gate device designed for reduced gate drive requirements. The 200 µA gate trigger current is substantially lower than the original 15 mA. Verify gate drive circuit compatibility before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts (TN1215-600H, TS1220-600H, TS820-600H, and MCR708A1G) carry ROHS3 compliance matching the original S6008V.

Q: What is the inventory status of substitute parts?

A: TS1220-600H has the highest availability at 41,300 units. TN1215-600H and TS820-600H each have 2,100 units. MCR708A1G has 8,425 units. All are active products.