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S6008DRP Equivalent & Substitute Parts
Part Overview
The S6008DRP is a 600V, 8A standard recovery SCR in TO-252 (DPAK) surface mount packaging manufactured by Littelfuse Inc. This thyristor is designed for general-purpose switching and control applications requiring reliable gate triggering and thermal performance within the -40°C to 125°C operating range. The part is active and in production with 3,900 units currently in stock.
Substitute parts are necessary when the original part becomes unavailable, when alternative manufacturers are preferred for supply chain diversification, or when design requirements allow for compatible alternatives with equivalent or enhanced electrical characteristics.
Substiute Parts
Key Parameters
| Parameter | S6008DRP Value | Unit |
|---|---|---|
| Voltage - Off State | 600 | V |
| Current - On State (It RMS) | 8 | A |
| Voltage - Gate Trigger (Vgt) Max | 1.5 | V |
| Current - Gate Trigger (Igt) Max | 15 | mA |
| Voltage - On State (Vtm) Max | 1.6 | V |
| Current - Hold (Ih) Max | 30 | mA |
| SCR Type | Standard Recovery | — |
| Package / Case | TO-252-3, DPAK | — |
| Operating Temperature | -40 to 125 | °C |
| RoHS Status | ROHS3 Compliant | — |
Substitute Part Grouping Explanation
Substitution eligibility for the S6008DRP is determined by the following criteria:
Primary Substitution Parameters:
- Off-state voltage rating: 600V minimum
- On-state current (RMS): 8A or greater
- Package type: TO-252-3 DPAK (mechanical and thermal compatibility)
- SCR type: Standard Recovery (switching characteristics)
- Operating temperature range: -40°C to 125°C minimum
Secondary Compatibility Factors:
- Gate trigger voltage (Vgt) and current (Igt) must be compatible with existing gate drive circuitry
- On-state voltage drop (Vtm) affects thermal performance
- Hold current (Ih) must not exceed circuit requirements
Parts are grouped into three categories:
Direct Equivalents (Same Current Rating): Parts with 8A RMS current rating and identical electrical characteristics within specified tolerances.
Uprated Substitutes (Higher Current Rating): Parts with 12A or 15A RMS ratings that maintain 600V off-state voltage and TO-252 packaging. These provide enhanced current capacity while maintaining backward compatibility.
Parametric Equivalents (Lower Current Rating): Parts with 6A RMS rating that share the same voltage class and package but with reduced current capacity.
Parameter Comparison
| Part Number | Manufacturer | Voltage (V) | Current RMS (A) | Vgt Max (V) | Igt Max (mA) | Vtm Max (V) | SCR Type | Package | Temp Range (°C) |
|---|---|---|---|---|---|---|---|---|---|
| S6008DRP | Littelfuse | 600 | 8 | 1.5 | 15 | 1.6 | Standard Recovery | TO-252 DPAK | -40 to 125 |
| MCR8DCMT4G | Littelfuse | 600 | 8 | 1.0 | 0.015 | 1.8 | Standard Recovery | TO-252 DPAK | -40 to 125 |
| S6006DRP | Littelfuse | 600 | 6 | 1.5 | 15 | 1.6 | Standard Recovery | TO-252 DPAK | -40 to 125 |
| MCR12DCMT4G | Littelfuse | 600 | 12 | 1.0 | 20 | 1.9 | Standard Recovery | TO-252 DPAK | -40 to 125 |
| MCR12DSMT4G | Littelfuse | 600 | 12 | 1.0 | 0.2 | 1.9 | Sensitive Gate | TO-252 DPAK | -40 to 110 |
| TN805-600B-TR | STMicroelectronics | 600 | 8 | 1.3 | 5 | 1.6 | Standard Recovery | TO-252 DPAK | -40 to 125 |
| TN1205T-600B-TR | STMicroelectronics | 600 | 12 | 1.3 | 5 | 1.6 | Standard Recovery | TO-252 DPAK | -40 to 125 |
| TN1215-600B | STMicroelectronics | 600 | 12 | 1.3 | 15 | 1.6 | Standard Recovery | TO-252 DPAK | -40 to 125 |
| TN1215-600B-TR | STMicroelectronics | 600 | 12 | 1.3 | 15 | 1.6 | Standard Recovery | TO-252 DPAK | -40 to 125 |
| TN1515-600B-TR | STMicroelectronics | 600 | 15 | 1.3 | 15 | 1.6 | Standard Recovery | TO-252 DPAK | -40 to 125 |
| TS1220-600B | STMicroelectronics | 600 | 12 | 0.8 | 0.2 | 1.6 | Sensitive Gate | TO-252 DPAK | -40 to 125 |
Engineering Selection Recommendations
Direct Equivalent (Same Current Rating):
MCR8DCMT4G (Littelfuse) and TN805-600B-TR (STMicroelectronics) are direct equivalents with 8A RMS current rating. Both maintain 600V off-state voltage and TO-252 DPAK packaging. MCR8DCMT4G features lower gate trigger current (15 µA vs. 15 mA) and slightly higher on-state voltage (1.8V vs. 1.6V). TN805-600B-TR maintains identical on-state voltage (1.6V) with moderate gate trigger current (5 mA). Both are ROHS3 compliant and rated to -40°C to 125°C. MCR8DCMT4G is preferred for applications requiring minimal gate drive current. TN805-600B-TR is preferred for applications with standard gate drive requirements and lower off-state leakage current (5 µA vs. 10 µA).
Uprated Substitutes (12A Current Rating):
MCR12DCMT4G, MCR12DSMT4G, TN1205T-600B-TR, TN1215-600B, and TN1215-600B-TR provide 12A RMS current capacity. MCR12DCMT4G (Standard Recovery) and TN1205T-600B-TR maintain the lowest on-state voltage (1.6V) with moderate gate trigger requirements. MCR12DSMT4G and TS1220-600B are Sensitive Gate variants with significantly reduced gate trigger current (200 µA) and hold current (6 mA and 5 mA respectively), suitable for low-power gate drive circuits. MCR12DSMT4G operates to 110°C maximum. TN1215-600B and TN1215-600B-TR (Standard Recovery) offer the highest inventory availability (103,100 and 22,775 units respectively) with consistent electrical characteristics. All 12A parts are ROHS3 compliant and rated to -40°C to 125°C except MCR12DSMT4G.
Uprated Substitute (15A Current Rating):
TN1515-600B-TR provides 15A RMS current capacity with 600V off-state voltage and TO-252 DPAK packaging. This part maintains 1.6V on-state voltage and standard gate trigger characteristics (Vgt 1.3V, Igt 15 mA). It is ROHS3 compliant and rated to -40°C to 125°C with 11,247 units in stock.
Parametric Equivalent (6A Current Rating):
S6006DRP (Littelfuse) provides a lower current alternative at 6A RMS with identical gate trigger specifications (Vgt 1.5V, Igt 15 mA) and on-state voltage (1.6V) to the S6008DRP. This part is suitable only for applications where 6A current capacity is sufficient. REACH status is affected. 2,887 units are in stock.
Frequently Asked Questions (FAQ)
Q: Can MCR12DCMT4G replace S6008DRP in all applications?
A: MCR12DCMT4G is electrically compatible as an uprated substitute with higher current capacity (12A vs. 8A). However, the gate trigger voltage is lower (1.0V vs. 1.5V) and gate trigger current is significantly lower (20 µA vs. 15 mA). Verify that existing gate drive circuitry can accommodate these differences. The on-state voltage is slightly higher (1.9V vs. 1.6V), resulting in increased thermal dissipation.
Q: What is the difference between Standard Recovery and Sensitive Gate SCR types?
A: Standard Recovery SCRs require higher gate trigger current (typically 5-20 mA) and voltage (1.0-1.5V) for reliable triggering. Sensitive Gate SCRs require significantly lower gate trigger current (typically 200 µA or less) and voltage (0.8-1.0V), enabling operation with low-power gate drive circuits. Sensitive Gate variants include MCR12DSMT4G and TS1220-600B.
Q: Are all substitute parts available in the same packaging?
A: All listed substitute parts use TO-252-3 DPAK (2 Leads + Tab) surface mount packaging, ensuring mechanical and thermal compatibility. Packaging format differs: S6008DRP, MCR8DCMT4G, MCR12DCMT4G, and MCR12DSMT4G are supplied in Tape & Reel (TR). S6006DRP is supplied in Tape & Reel (TR). STMicroelectronics parts are available in multiple formats: TN805-600B-TR, TN1205T-600B-TR, TN1215-600B-TR, and TN1515-600B-TR in Tape & Reel; TN1215-600B and TS1220-600B in Tube.
Q: Which substitute offers the lowest on-state voltage drop?
A: TN805-600B-TR, TN1205T-600B-TR, TN1215-600B, TN1215-600B-TR, TN1515-600B-TR, and TS1220-600B all maintain 1.6V maximum on-state voltage, matching the S6008DRP specification. MCR8DCMT4G has 1.8V, and MCR12DCMT4G and MCR12DSMT4G have 1.9V maximum on-state voltage.
Q: What is the maximum operating temperature for each substitute?
A: S6008DRP, MCR8DCMT4G, MCR12DCMT4G, S6006DRP, and all STMicroelectronics parts (TN805-600B-TR, TN1205T-600B-TR, TN1215-600B, TN1215-600B-TR, TN1515-600B-TR, TS1220-600B) are rated to 125°C. MCR12DSMT4G is rated to 110°C maximum.
Q: Are all parts RoHS3 compliant?
A: Yes, all listed parts are ROHS3 compliant. REACH status varies: S6008DRP, MCR8DCMT4G, TN805-600B-TR, TN1205T-600B-TR, TN1215-600B, TN1215-600B-TR, TN1515-600B-TR, and TS1220-600B are REACH Unaffected. S6006DRP and MCR12DCMT4G are REACH Affected. MCR12DSMT4G is REACH Affected.
Q: Which substitute has the lowest gate trigger current requirement?
A: MCR8DCMT4G has the lowest gate trigger current at 15 µA maximum. Sensitive Gate variants MCR12DSMT4G and TS1220-600B have 200 µA maximum gate trigger current. Standard Recovery variants from STMicroelectronics (TN805-600B-TR, TN1205T-600B-TR, TN1215-600B, TN1215-600B-TR, TN1515-600B-TR) have 5-15 mA gate trigger current.
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