S6008DTP Equivalent & Substitute Parts

Part Overview

The S6008DTP is a 600V 8A standard recovery SCR (silicon-controlled rectifier) manufactured by Littelfuse Inc. in TO-252 (DPAK) surface mount packaging. This thyristor is designed for general-purpose switching and control applications requiring 600V blocking capability with 8A RMS current handling. The part is active, RoHS3 compliant, and available in tube packaging with 848 pieces in stock.

Substitute parts are necessary when the original part becomes unavailable, when alternative packaging formats are required for production efficiency, or when design specifications allow for higher current ratings or different gate sensitivity characteristics within the same voltage class and package family.

Key Parameters

Parameter	S6008DTP 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	-
Operating Temperature	-40 to 125	°C
Package / Case	TO-252-3 DPAK	-
Mounting Type	Surface Mount	-

Substitute Part Grouping Explanation

Substitution eligibility for the S6008DTP is determined by the following criteria:

Primary Compatibility Requirements:

Voltage - Off State: 600V (exact match required)
Package / Case: TO-252-3 DPAK (exact match required)
Mounting Type: Surface Mount (exact match required)
SCR Type: Standard Recovery (preferred for direct replacement)

Current Rating Flexibility:

Current - On State (It RMS): 8A minimum (equal or higher ratings acceptable)
Current - Gate Trigger (Igt) Max: 15mA baseline (lower values acceptable for sensitive gate variants)

Secondary Parameters:

Voltage - Gate Trigger (Vgt) Max: 1.5V baseline (lower values acceptable)
Voltage - On State (Vtm) Max: 1.6V baseline (lower or equal values acceptable)
Operating Temperature: -40°C to 125°C (equal or wider range acceptable)

Substitute parts are grouped into two categories: direct replacements with identical 8A ratings and higher-current alternatives with 12A or 15A ratings. Sensitive gate variants are listed separately due to different gate trigger characteristics.

Parameter Comparison

Part Number	Manufacturer	Voltage Off State (V)	It RMS (A)	Vgt Max (V)	Igt Max (mA)	Vtm Max (V)	Ih Max (mA)	SCR Type	Packaging	Inventory (Pcs)
S6008DTP	Littelfuse	600	8	1.5	15	1.6	30	Standard Recovery	Tube	848
MCR8DCMT4G	Littelfuse	600	8	1.0	0.015	1.8	30	Standard Recovery	Tape & Reel	10400
TN805-600B-TR	STMicroelectronics	600	8	1.3	5	1.6	25	Standard Recovery	Cut Tape & Digi-Reel	3984
MCR12DCMT4G	Littelfuse	600	12	1.0	20	1.9	40	Standard Recovery	Tape & Reel	10100
TN1205T-600B-TR	STMicroelectronics	600	12	1.3	5	1.6	15	Standard Recovery	Cut Tape & Digi-Reel	2100
TN1215-600B	STMicroelectronics	600	12	1.3	15	1.6	40	Standard Recovery	Tube	103100
TN1215-600B-TR	STMicroelectronics	600	12	1.3	15	1.6	40	Standard Recovery	Tape & Reel	22775
TN1515-600B-TR	STMicroelectronics	600	15	1.3	15	1.6	40	Standard Recovery	Tape & Reel	11247
MCR12DSMT4G	Littelfuse	600	12	1.0	0.2	1.9	6	Sensitive Gate	Tape & Reel	16735
TS1220-600B	STMicroelectronics	600	12	0.8	0.2	1.6	5	Sensitive Gate	Tube	2380
TS420-600B-TR	STMicroelectronics	600	4	0.8	0.2	1.6	5	Sensitive Gate	Cut Tape & Digi-Reel	20400

Engineering Selection Recommendations

Direct Replacement (8A Standard Recovery): MCR8DCMT4G and TN805-600B-TR are direct functional equivalents with identical 8A RMS current ratings and standard recovery characteristics. Both maintain 600V off-state voltage and TO-252 DPAK packaging. MCR8DCMT4G offers lower gate trigger voltage (1.0V vs 1.5V) and is available in higher quantity (10400 pcs). TN805-600B-TR provides lower gate trigger current (5mA vs 15mA) and is supplied in cut tape format. Both are RoHS3 compliant and active products.

Higher Current Alternatives (12A Standard Recovery): MCR12DCMT4G, TN1205T-600B-TR, TN1215-600B, and TN1215-600B-TR support 12A RMS operation while maintaining 600V blocking voltage and DPAK packaging. These parts are suitable when design specifications permit higher current capacity. TN1215-600B offers the largest inventory (103100 pcs) in tube packaging. TN1215-600B-TR provides equivalent specifications in tape & reel format (22775 pcs). MCR12DCMT4G is available in 10100 pcs. All are RoHS3 compliant and active.

Highest Current Alternative (15A Standard Recovery): TN1515-600B-TR supports 15A RMS operation with 600V blocking voltage and DPAK packaging. This part is suitable for applications requiring maximum current capacity within the 600V class. Available in 11247 pcs in tape & reel format. RoHS3 compliant and active product.

Sensitive Gate Variants: MCR12DSMT4G, TS1220-600B, and TS420-600B-TR feature sensitive gate characteristics with significantly lower gate trigger current (0.2mA vs 15mA). These parts are not direct replacements but are alternatives when low-power gate drive is required. MCR12DSMT4G and TS1220-600B support 12A operation; TS420-600B-TR supports 4A operation. All are RoHS3 compliant and active products.

Compliance Status: All listed substitute parts are RoHS3 compliant, REACH unaffected, and classified as EAR99. All maintain MSL 1 (unlimited moisture sensitivity level). Operating temperature ranges are -40°C to 125°C for standard recovery types and -40°C to 110°C for MCR12DSMT4G.

Frequently Asked Questions (FAQ)

Q: Can MCR8DCMT4G directly replace S6008DTP? A: Yes. Both are 600V 8A standard recovery SCRs in TO-252 DPAK packaging. MCR8DCMT4G has lower gate trigger voltage (1.0V vs 1.5V) and lower gate trigger current (15µA vs 15mA), making it more sensitive. It is supplied in tape & reel format instead of tube.

Q: What is the difference between standard recovery and sensitive gate SCRs? A: Standard recovery SCRs require higher gate trigger current (typically 5-20mA) for reliable triggering. Sensitive gate SCRs require significantly lower gate trigger current (typically 0.2mA), reducing gate drive circuit complexity and power consumption. Sensitive gate variants are not direct replacements for standard recovery types.

Q: Can I use a 12A rated part instead of the 8A S6008DTP? A: Yes, if your circuit design permits. Higher current-rated parts (MCR12DCMT4G, TN1215-600B, TN1215-600B-TR, TN1515-600B-TR) maintain the same 600V blocking voltage and DPAK package. They provide additional current capacity margin but do not reduce performance in 8A applications. Verify that PCB thermal design accommodates the substitute part's thermal characteristics.

Q: What packaging formats are available? A: S6008DTP is supplied in tube packaging. Substitutes are available in tube (TN1215-600B, TS1220-600B), tape & reel (MCR8DCMT4G, MCR12DCMT4G, TN1215-600B-TR, TN1515-600B-TR, MCR12DSMT4G), and cut tape & digi-reel formats (TN1205T-600B-TR, TS420-600B-TR, TN805-600B-TR). Tape & reel format is standard for high-volume production; tube format is typical for lower-volume or manual assembly.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts are RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity level. All are REACH unaffected and classified as EAR99 for export control purposes.

Q: Which substitute has the best inventory availability? A: TN1215-600B (STMicroelectronics) has the highest inventory at 103100 pieces in tube packaging. For tape & reel format, TN1215-600B-TR offers 22775 pieces. MCR8DCMT4G provides 10400 pieces as a direct 8A equivalent in tape & reel format.

Q: Can TS420-600B-TR replace S6008DTP? A: No. TS420-600B-TR is rated for only 4A RMS operation, which is below the 8A requirement of S6008DTP. Additionally, it is a sensitive gate variant with different gate trigger characteristics. This part is not suitable as a substitute.

Q: What is the temperature operating range difference? A: Most substitute parts operate from -40°C to 125°C, matching S6008DTP. MCR12DSMT4G (sensitive gate variant) has a reduced upper temperature limit of 110°C. Verify application temperature requirements before selecting this part.

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