S6006DS3TP Equivalent & Substitute Parts

Part Overview

The S6006DS3TP is a 600V, 6A Sensitive Gate SCR (Silicon Controlled Rectifier) manufactured by Littelfuse Inc. in TO-252 (DPAK) surface mount packaging. This thyristor is designed for applications requiring controlled rectification and switching with low gate trigger requirements. The part is currently active in production with 754 units in stock.

Substitute parts are necessary when the original part becomes unavailable, when alternative packaging formats are required, or when application requirements allow for higher current ratings or different gate sensitivity characteristics while maintaining voltage and thermal compatibility.

Key Parameters

Parameter	S6006DS3TP
Voltage - Off State	600 V
Current - On State (It RMS)	6 A
Voltage - Gate Trigger (Vgt) Max	800 mV
Current - Gate Trigger (Igt) Max	500 µA
Voltage - On State (Vtm) Max	1.6 V
Current - Hold (Ih) Max	8 mA
SCR Type	Sensitive Gate
Operating Temperature	-40°C ~ 110°C
Package / Case	TO-252-3, DPAK
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the S6006DS3TP is determined by the following criteria:

Mandatory Compatibility Parameters:

Voltage - Off State: 600 V (exact match required)
Package / Case: TO-252-3, DPAK (exact match required)
Mounting Type: Surface Mount (exact match required)

Allowable Variation Parameters:

Current - On State (It RMS): Equal to or greater than 6 A
SCR Type: Sensitive Gate or Standard Recovery (both acceptable)
Operating Temperature: Must support minimum -40°C to 110°C range
Gate trigger characteristics: May vary within application tolerance

Substitute parts are grouped into two categories: Littelfuse MCR series (Sensitive Gate and Standard Recovery variants) and STMicroelectronics TN/TS series (Standard Recovery and Sensitive Gate variants). All substitutes maintain 600V blocking voltage and TO-252 DPAK packaging while offering current ratings from 8A to 15A.

Parameter Comparison

Part Number	Manufacturer	SCR Type	It (RMS) Max	Vgt Max	Igt Max	Vtm Max	Ih Max	Operating Temp	Packaging
S6006DS3TP	Littelfuse	Sensitive Gate	6 A	800 mV	500 µA	1.6 V	8 mA	-40°C ~ 110°C	Tube
MCR8DSMT4G	Littelfuse	Sensitive Gate	8 A	1 V	200 µA	1.8 V	6 mA	-40°C ~ 110°C	Tape & Reel
MCR8DCMT4G	Littelfuse	Standard Recovery	8 A	1 V	15 µA	1.8 V	30 mA	-40°C ~ 125°C	Tape & Reel
MCR12DSMT4G	Littelfuse	Sensitive Gate	12 A	1 V	200 µA	1.9 V	6 mA	-40°C ~ 110°C	Tape & Reel
MCR12DCMT4G	Littelfuse	Standard Recovery	12 A	1 V	20 mA	1.9 V	40 mA	-40°C ~ 125°C	Tape & Reel
TN805-600B-TR	STMicroelectronics	Standard Recovery	8 A	1.3 V	5 mA	1.6 V	25 mA	-40°C ~ 125°C	Tape & Reel
TN1205T-600B-TR	STMicroelectronics	Standard Recovery	12 A	1.3 V	5 mA	1.6 V	15 mA	-40°C ~ 125°C	Tape & Reel
TN1215-600B	STMicroelectronics	Standard Recovery	12 A	1.3 V	15 mA	1.6 V	40 mA	-40°C ~ 125°C	Tube
TN1215-600B-TR	STMicroelectronics	Standard Recovery	12 A	1.3 V	15 mA	1.6 V	40 mA	-40°C ~ 125°C	Tape & Reel
TN1515-600B-TR	STMicroelectronics	Standard Recovery	15 A	1.3 V	15 mA	1.6 V	40 mA	-40°C ~ 125°C	Tape & Reel
TS1220-600B	STMicroelectronics	Sensitive Gate	12 A	800 mV	200 µA	1.6 V	5 mA	-40°C ~ 125°C	Tube

Engineering Selection Recommendations

Littelfuse MCR8DSMT4G / MCR8DCMT4G (8A Rating) These parts provide the closest current rating match above the S6006DS3TP. MCR8DSMT4G maintains Sensitive Gate characteristics with 200 µA gate trigger current and operates to 110°C. MCR8DCMT4G offers Standard Recovery operation with extended temperature range to 125°C. Both are ROHS3 compliant and available in Tape & Reel packaging.

Littelfuse MCR12DSMT4G / MCR12DCMT4G (12A Rating) These higher-current alternatives provide additional design margin. MCR12DSMT4G preserves Sensitive Gate operation with 6 mA hold current. MCR12DCMT4G offers Standard Recovery with 40 mA hold current and extended temperature range. Both maintain ROHS3 compliance.

STMicroelectronics TN805-600B-TR (8A Rating) Standard Recovery SCR with 1.3V gate trigger voltage and 5 mA gate trigger current. Operates to 125°C with ROHS3 compliance. Suitable for applications where gate sensitivity is not critical.

STMicroelectronics TN1215-600B / TN1215-600B-TR (12A Rating) Standard Recovery devices with 1.6V on-state voltage matching the S6006DS3TP. Available in both Tube and Tape & Reel packaging. Extended temperature range to 125°C. High inventory availability (103,100 units in Tube format).

STMicroelectronics TS1220-600B (12A Sensitive Gate) Sensitive Gate variant with 800 mV gate trigger voltage identical to S6006DS3TP. Provides 12A current capacity with extended temperature range to 125°C. Maintains low hold current at 5 mA.

STMicroelectronics TN1515-600B-TR (15A Rating) Highest current-rated substitute offering maximum design margin. Standard Recovery operation with 1.6V on-state voltage. Extended temperature range to 125°C.

All recommended substitutes maintain 600V blocking voltage, TO-252 DPAK packaging, surface mount configuration, and ROHS3 compliance. Selection should be based on specific application requirements for gate sensitivity, current margin, and temperature operating range.

Frequently Asked Questions (FAQ)

Q: Can I use a Standard Recovery SCR as a substitute for the Sensitive Gate S6006DS3TP? A: Yes. Standard Recovery SCRs (MCR8DCMT4G, MCR12DCMT4G, TN805-600B-TR, TN1215-600B series, TN1515-600B-TR) are electrically compatible substitutes. They maintain the same 600V blocking voltage and TO-252 DPAK package. However, Standard Recovery devices require higher gate trigger currents (5-20 mA versus 200-500 µA for Sensitive Gate). Verify your gate drive circuit can supply the required current before substitution.

Q: What is the difference between Tube and Tape & Reel packaging? A: Tube packaging contains individual components in a plastic tube, suitable for lower-volume applications and manual assembly. Tape & Reel packaging provides components on continuous tape for automated pick-and-place assembly. Both formats use identical TO-252 DPAK components. Select based on your assembly process requirements.

Q: Can I substitute a higher current-rated SCR (12A or 15A) for the 6A S6006DS3TP? A: Yes. Higher current ratings provide additional design margin and are electrically compatible. MCR12DSMT4G, MCR12DCMT4G, TN1215-600B, TS1220-600B, and TN1515-600B-TR all maintain 600V blocking voltage and TO-252 DPAK packaging. Verify your PCB layout and thermal management accommodate the substitute part's specifications.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant. The S6006DS3TP is also ROHS3 compliant. All parts have Moisture Sensitivity Level 1 (Unlimited).

Q: What is the temperature operating range difference between S6006DS3TP and substitutes? A: The S6006DS3TP operates from -40°C to 110°C. Most Littelfuse MCR series Sensitive Gate variants (MCR8DSMT4G, MCR12DSMT4G) maintain this range. Standard Recovery variants and STMicroelectronics parts extend to -40°C to 125°C. Select based on your application's thermal requirements.

Q: Which substitute has the lowest gate trigger voltage? A: Both S6006DS3TP and TS1220-600B share the lowest gate trigger voltage at 800 mV maximum. MCR8DSMT4G and MCR12DSMT4G specify 1 V maximum. STMicroelectronics TN and TS series specify 1.3 V or 800 mV depending on the model.

Q: Can I use MCR8DSMT4G as a direct replacement without circuit modifications? A: MCR8DSMT4G is a near-equivalent substitute maintaining Sensitive Gate operation, 800 mV gate trigger voltage, and similar on-state characteristics. The primary differences are 8A versus 6A current rating and Tape & Reel versus Tube packaging. No circuit modifications are required if your application can accommodate the higher current rating and packaging format.

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