SJ6020R2TP Equivalent & Substitute Parts

Part Overview

The SJ6020R2TP is a 600V 20A Standard Recovery SCR (Silicon Controlled Rectifier) manufactured by Littelfuse Inc. in a Through Hole TO-220AB package. This thyristor is designed for AC power control applications requiring reliable switching performance across industrial and commercial environments. The part is Active status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified when design requirements allow for alternative current ratings, recovery types, or when inventory constraints necessitate component substitution while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	20 A
Voltage - Gate Trigger (Vgt) (Max)	1.5 V
Current - Gate Trigger (Igt) (Max)	10 mA
Voltage - On State (Vtm) (Max)	1.6 V
SCR Type	Standard Recovery
Package / Case	TO-220-3
Operating Temperature	-40°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SJ6020R2TP is determined by the following criteria:

Mandatory Matching Parameters:

Voltage - Off State: 600 V
Voltage - Gate Trigger (Vgt) (Max): 1.5 V
Current - Gate Trigger (Igt) (Max): 10 mA
Voltage - On State (Vtm) (Max): 1.6 V
Package / Case: TO-220-3
Operating Temperature Range: -40°C ~ 150°C (TJ)
Mounting Type: Through Hole
RoHS Status: ROHS3 Compliant

Variable Parameters Allowing Substitution:

Current - On State (It (RMS)) (Max): Substitutes with equal or higher current ratings are acceptable
SCR Type: Both Standard Recovery and Sensitive Gate types are interchangeable within the same voltage and current class
Current - Non Rep. Surge ratings may vary based on current class

The SJ6020R2TP qualifies as a substitute for lower current-rated parts (SJ6016R2TP, SV6016R2TP) and is compatible with higher current-rated parts (SJ6025R2TP) when circuit design permits.

Parameter Comparison

Parameter	SJ6020R2TP	SJ6016R2TP	SJ6025R2TP	SV6016R2TP
Voltage - Off State	600 V	600 V	600 V	600 V
Voltage - Gate Trigger (Vgt) (Max)	1.5 V	1.5 V	1.5 V	1.5 V
Current - Gate Trigger (Igt) (Max)	10 mA	10 mA	10 mA	10 mA
Voltage - On State (Vtm) (Max)	1.6 V	1.6 V	1.6 V	1.6 V
Current - On State (It (RMS)) (Max)	20 A	16 A	25 A	16 A
Current - On State (It (AV)) (Max)	12.8 A	10 A	16 A	10.2 A
Current - Hold (Ih) (Max)	35 mA	35 mA	35 mA	35 mA
Current - Off State (Max)	10 µA	10 µA	10 µA	10 µA
SCR Type	Standard Recovery	Standard Recovery	Standard Recovery	Sensitive Gate
Operating Temperature	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain Active product status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring regulatory and environmental compatibility with the SJ6020R2TP.

SJ6016R2TP (16A Standard Recovery): Suitable for applications where the 20A current rating of the SJ6020R2TP exceeds design requirements. Identical voltage, gate trigger, and thermal specifications enable direct substitution in lower-current circuits.

SJ6025R2TP (25A Standard Recovery): Applicable when circuit design permits higher current capacity. Maintains all voltage and gate trigger parameters while providing increased current handling for higher-power applications.

SV6016R2TP (16A Sensitive Gate): Interchangeable with SJ6016R2TP for 16A applications. The Sensitive Gate type differs from Standard Recovery in gate sensitivity characteristics but maintains identical voltage ratings, gate trigger specifications, and thermal operating range.

Frequently Asked Questions (FAQ)

Q: Can SJ6016R2TP replace SJ6020R2TP in all applications?

A: SJ6016R2TP is suitable only for applications where the circuit current requirement does not exceed 16A RMS. The 20A SJ6020R2TP provides higher current capacity. Voltage, gate trigger, and thermal specifications are identical, enabling substitution in lower-current designs.

Q: What is the difference between Standard Recovery and Sensitive Gate SCR types?

A: Both types share identical voltage ratings (600V off-state), gate trigger specifications (1.5V max, 10mA max), and on-state voltage (1.6V max). The distinction lies in gate sensitivity characteristics. SV series (Sensitive Gate) and SJ series (Standard Recovery) are interchangeable within the same voltage and current class when gate sensitivity requirements are compatible.

Q: Is SJ6025R2TP a direct replacement for SJ6020R2TP?

A: SJ6025R2TP is electrically compatible with identical voltage and gate trigger parameters. The 25A current rating exceeds the 20A specification of SJ6020R2TP. Substitution is valid when circuit design permits the higher current capacity and thermal dissipation characteristics.

Q: Are all substitute parts available in the same TO-220AB package?

A: Yes. All listed substitute parts use the TO-220-3 package with TO-220AB supplier device package designation, ensuring mechanical and thermal interface compatibility with SJ6020R2TP.

Q: Do substitute parts maintain the same compliance certifications?

A: All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the SJ6020R2TP compliance profile. REACH status is Unaffected for all parts.

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