S6012V SCR 600V 12A Equivalent & Substitute Parts

Part Overview

The S6012V is a standard recovery SCR (silicon controlled rectifier) rated for 600V off-state voltage and 12A RMS on-state current in a TO-251 through-hole package. Manufactured by Littelfuse Inc., this component is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and production continuity. Alternative parts must maintain electrical compatibility within the 600V voltage class while accommodating variations in gate sensitivity, on-state characteristics, and thermal performance.

Substiute Parts

S6012V

Littelfuse Inc.In Stock: 2423S6012V 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 S6012V is determined by the following criteria:

Mandatory Compatibility Parameters:

• Voltage - Off State: 600V (exact match required)
• Current - On State (It RMS): 12A minimum
• Mounting Type: Through Hole (package form factor compatibility)
• Package / Case: TO-251-3 / IPAK (physical and electrical interface)

Allowable Variation Parameters:

• SCR Type: Standard Recovery or Sensitive Gate (both acceptable; Sensitive Gate offers lower gate trigger requirements)
• Voltage - Gate Trigger (Vgt): Up to 1.5V (lower values acceptable for easier triggering)
• Current - Gate Trigger (Igt): Up to 20mA (lower values acceptable)
• Voltage - On State (Vtm): Up to 1.6V (conduction losses)
• Current - Hold (Ih): Up to 40mA (lower values acceptable)
• Operating Temperature: -40°C to 125°C minimum (higher upper limits acceptable)

Substitute Parts Identified:

• TN1215-600H (STMicroelectronics): Standard Recovery, 12A RMS, TO-251 through-hole, exact parameter alignment
• TS1220-600H (STMicroelectronics): Sensitive Gate, 12A RMS, TO-251 through-hole, lower gate trigger requirements
• TS820-600H (STMicroelectronics): Sensitive Gate, 8A RMS, TO-251 through-hole, reduced current rating (partial substitute for lower-current applications)
• MCR708A1G (Littelfuse Inc.): Sensitive Gate, 4A RMS, surface mount TO-252 (package incompatible; not recommended for direct replacement)

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: TN1215-600H

The TN1215-600H is the closest electrical equivalent to the S6012V. Both are standard recovery SCRs with identical 600V voltage rating, 12A RMS current rating, and TO-251 through-hole packaging. The TN1215-600H has a lower gate trigger voltage (1.3V vs. 1.5V) and lower gate trigger current (15mA vs. 20mA), making it easier to trigger while maintaining full parameter compatibility. This part is actively manufactured by STMicroelectronics and carries ROHS3 compliance.

Secondary Substitute: TS1220-600H

The TS1220-600H offers the same 600V and 12A RMS ratings in an identical TO-251 package but with sensitive gate characteristics. Gate trigger voltage is significantly lower (0.8V vs. 1.5V) and gate trigger current is reduced to 200µA. This part is suitable for applications where lower gate drive power is beneficial. The sensitive gate design requires verification that existing gate drive circuits can accommodate the lower trigger thresholds. This part is actively manufactured and ROHS3 compliant.

Partial Substitute: TS820-600H

The TS820-600H maintains 600V voltage rating and TO-251 through-hole packaging but is rated for 8A RMS instead of 12A. This part is suitable only for applications where the load current does not exceed 8A RMS. Like the TS1220-600H, it features sensitive gate characteristics with 0.8V trigger voltage. This part is actively manufactured and ROHS3 compliant.

Not Recommended: MCR708A1G

The MCR708A1G is surface mount (TO-252 DPAK) and rated for only 4A RMS, making it unsuitable for direct replacement in through-hole designs requiring 12A capacity.

Frequently Asked Questions (FAQ)

Q: Can I use TS1220-600H as a direct replacement for S6012V?

A: Yes. Both parts share identical 600V voltage rating, 12A RMS current rating, and TO-251 through-hole package. The TS1220-600H has lower gate trigger requirements (0.8V vs. 1.5V), which may require gate drive circuit verification but does not prevent substitution.

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

A: Standard recovery SCRs (S6012V, TN1215-600H) require higher gate trigger voltage and current to turn on. Sensitive gate SCRs (TS1220-600H, TS820-600H) require significantly lower gate drive power. Both types are electrically compatible at the same voltage and current ratings; the choice depends on gate drive circuit capability.

Q: Can I use TS820-600H if my application only draws 8A?

A: Yes, if your load current does not exceed 8A RMS. The TS820-600H is rated for 8A RMS and maintains the same 600V voltage class and TO-251 package. However, verify that the 8A rating meets your application's peak and average current requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The S6012V, TN1215-600H, TS1220-600H, and TS820-600H are all ROHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Q: Why is MCR708A1G listed as a substitute but not recommended?

A: The MCR708A1G is a surface mount component (TO-252 DPAK) rated for only 4A RMS. It is electrically incompatible with through-hole designs and lacks the current capacity for 12A applications. It is not a viable substitute for the S6012V.

Q: What is the inventory status of substitute parts?

A: TN1215-600H has 2,100 units in stock, TS1220-600H has 41,300 units in stock, and TS820-600H has 2,100 units in stock. All are actively manufactured and available.