TIC106M-S Equivalent & Substitute Parts

Part Overview

The TIC106M-S is a 600V, 5A sensitive gate SCR (silicon controlled rectifier) in TO-220-3 package manufactured by Bourns Inc. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The TIC106M-S serves as a thyristor for AC switching and control applications requiring low gate trigger current and voltage specifications.

Key Parameters

Parameter	Value
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	5 A
Voltage - Gate Trigger (Vgt) (Max)	1 V
Current - Gate Trigger (Igt) (Max)	200 µA
Voltage - On State (Vtm) (Max)	1.7 V
SCR Type	Sensitive Gate
Operating Temperature Range	-40°C ~ 110°C
Package / Case	TO-220-3
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TIC106M-S is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain 600V off-state voltage to ensure equivalent circuit protection and switching capability.

SCR Type Classification: The TIC106M-S is a sensitive gate SCR. Substitutes are grouped into two categories:

Sensitive gate SCRs (TS420-600T, TS820-600T) with lower gate trigger current requirements
Standard recovery SCRs (TYN608RG, TYN612RG, TYN612TRG) with higher gate trigger current but improved surge handling

Current Rating: The TIC106M-S is rated for 5A RMS on-state current. Substitutes with equal or higher current ratings (4A minimum) are acceptable for direct replacement.

Package Compatibility: All substitute parts use TO-220-3 through-hole package, ensuring mechanical and thermal compatibility.

Gate Trigger Parameters: Sensitive gate substitutes (TS420-600T, TS820-600T) maintain the low gate trigger voltage and current characteristics of the original part. Standard recovery substitutes have higher gate trigger requirements but provide superior surge current handling.

Parameter Comparison

Parameter	TIC106M-S	TS420-600T	TS820-600T	TYN608RG	TYN612RG	TYN612TRG
Voltage - Off State	600 V	600 V	600 V	600 V	600 V	600 V
Current - On State (It (RMS)) (Max)	5 A	4 A	8 A	8 A	12 A	12 A
Voltage - Gate Trigger (Vgt) (Max)	1 V	800 mV	800 mV	1.3 V	1.3 V	1.3 V
Current - Gate Trigger (Igt) (Max)	200 µA	200 µA	200 µA	15 mA	15 mA	5 mA
Voltage - On State (Vtm) (Max)	1.7 V	1.6 V	1.6 V	1.6 V	1.6 V	1.6 V
Current - Hold (Ih) (Max)	5 mA	5 mA	5 mA	30 mA	30 mA	15 mA
Current - Off State (Max)	1 mA	5 µA	5 µA	5 µA	5 µA	5 µA
SCR Type	Sensitive Gate	Sensitive Gate	Sensitive Gate	Standard Recovery	Standard Recovery	Standard Recovery
Operating Temperature	-40°C ~ 110°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Product Status	Obsolete	Active	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation - TS420-600T (STMicroelectronics): This part maintains sensitive gate characteristics matching the TIC106M-S with 200 µA gate trigger current and 800 mV gate trigger voltage. The TS420-600T is active product status, ensuring long-term availability and supply chain stability. Current rating of 4A is within acceptable range for 5A applications with appropriate thermal management. ROHS3 compliance is maintained.

Alternative - TS820-600T (STMicroelectronics): Provides higher current capacity at 8A RMS with sensitive gate operation. Product status is obsolete, limiting future procurement viability. Suitable for applications requiring higher current margin.

Standard Recovery Options - TYN608RG, TYN612RG, TYN612TRG (STMicroelectronics): These parts offer active product status and superior surge current handling (95A to 145A). Gate trigger requirements are higher (5-15 mA), requiring circuit redesign for gate drive compatibility. Recommended only when surge protection is critical and gate drive circuitry can accommodate higher trigger current. All three maintain ROHS3 compliance and extended temperature range to 125°C.

Frequently Asked Questions (FAQ)

Q: Can TS420-600T directly replace TIC106M-S without circuit modification?

A: TS420-600T maintains compatible gate trigger parameters (200 µA at 800 mV) and voltage ratings. The 4A RMS current rating is lower than the original 5A specification. Direct replacement is feasible for applications operating below 4A RMS or with adequate thermal management. Verify application current requirements before substitution.

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

A: Sensitive gate SCRs (TS420-600T, TS820-600T) require lower gate trigger current (200 µA) and voltage (800 mV to 1 V), simplifying gate drive circuitry. Standard recovery SCRs (TYN608RG, TYN612RG, TYN612TRG) require higher gate trigger current (5-15 mA) but provide superior surge current ratings and improved recovery characteristics. Selection depends on gate drive capability and surge protection requirements.

Q: Why is the TIC106M-S obsolete?

A: The TIC106M-S is classified as obsolete by the manufacturer. Substitute parts with active product status (TS420-600T, TYN608RG, TYN612RG, TYN612TRG) ensure continued availability and manufacturing support.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts maintain ROHS3 compliance, matching the environmental and regulatory requirements of the original TIC106M-S.

Q: What is the temperature operating range difference?

A: The TIC106M-S operates from -40°C to 110°C. All substitute parts extend the upper limit to 125°C, providing improved thermal margin in high-temperature applications.

Q: Can TYN612RG or TYN612TRG replace TIC106M-S in existing designs?

A: TYN612RG and TYN612TRG are functionally compatible at 600V and TO-220-3 package. However, gate trigger current requirements are significantly higher (5-15 mA versus 200 µA). Gate drive circuitry must be redesigned to supply adequate trigger current. These parts are recommended for new designs prioritizing surge protection over gate drive simplicity.

Q: What is the difference between TYN612RG and TYN612TRG?

A: Both parts are 600V, 12A standard recovery SCRs in TO-220-3 package. TYN612TRG has lower gate trigger current (5 mA maximum) and lower hold current (15 mA) compared to TYN612RG (15 mA gate trigger, 30 mA hold current). TYN612TRG provides improved gate drive efficiency.

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