SJ6012R2TP

Part Overview

The SJ6012R2TP is an SCR (Silicon Controlled Rectifier) thyristor rated for 600V off-state voltage with 12A RMS current handling in a TO-220AB through-hole package. Manufactured by Littelfuse Inc., this component is classified as Standard Recovery type and maintains active product status. Substitute parts become necessary when higher current ratings are required for the same voltage class or when alternative SCR types with improved gate sensitivity characteristics are preferred for specific application requirements.

Key Parameters

Parameter	SJ6012R2TP
Voltage - Off State	600 V
Current - On State (It (RMS)) (Max)	12 A
Voltage - Gate Trigger (Vgt) (Max)	1.5 V
Current - Gate Trigger (Igt) (Max)	10 mA
Voltage - On State (Vtm) (Max)	1.6 V
Current - Hold (Ih) (Max)	35 mA
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 of the SJ6012R2TP is based on maintaining critical electrical parameters across the 600V voltage class while allowing for increased RMS current ratings. All substitute parts listed maintain identical off-state voltage (600V), gate trigger voltage (1.5V maximum), gate trigger current (10mA maximum), and on-state voltage drop (1.6V maximum). The primary differentiation among substitutes is the RMS current rating, with options available at 16A, 20A, and 25A. Two SCR type variants are included: Standard Recovery (SJ series) and Sensitive Gate (SV series). All parts are packaged in TO-220-3 with through-hole mounting and operate across the same temperature range (-40°C to 150°C).

Parameter Comparison

Parameter	SJ6012R2TP	SJ6016R2TP	SJ6020R2TP	SJ6025R2TP	SV6016R2TP
Voltage - Off State	600 V	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	1.5 V
Current - Gate Trigger (Igt) (Max)	10 mA	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	1.6 V
Current - Hold (Ih) (Max)	35 mA	35 mA	35 mA	35 mA	35 mA
Current - Off State (Max)	10 µA	10 µA	10 µA	10 µA	10 µA
Current - On State (It (RMS)) (Max)	12 A	16 A	20 A	25 A	16 A
Current - Non Rep. Surge 50Hz (Itsm)	100 A	188 A	225 A	300 A	188 A
Current - Non Rep. Surge 60Hz (Itsm)	120 A	225 A	300 A	350 A	225 A
SCR Type	Standard Recovery	Standard Recovery	Standard Recovery	Standard Recovery	Sensitive Gate
Package / Case	TO-220-3	TO-220-3	TO-220-3	TO-220-3	TO-220-3
Operating Temperature	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)	-40°C ~ 150°C (TJ)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

The SJ6012R2TP is recommended for applications requiring 12A RMS current capacity at 600V. When application requirements exceed the 12A rating, the SJ6016R2TP, SJ6020R2TP, and SJ6025R2TP provide incremental current capacity increases while maintaining identical voltage and gate trigger characteristics. All standard recovery variants (SJ series) share the same electrical performance profile with scaled current handling.

The SV6016R2TP represents an alternative with Sensitive Gate classification, providing equivalent current capacity to the SJ6016R2TP at 16A RMS. This variant is selected when reduced gate trigger requirements are beneficial to the application design.

All substitute parts are ROHS3 compliant, carry REACH Unaffected status, and are classified under ECCN EAR99. All variants are manufactured by Littelfuse Inc. with active product status and are available in standard TO-220-3 through-hole packaging. Selection should be based on specific circuit current requirements and gate sensitivity characteristics needed for the application.

Frequently Asked Questions (FAQ)

Q: Can SJ6016R2TP, SJ6020R2TP, or SJ6025R2TP be used as direct replacements for SJ6012R2TP?

A: Yes. All SJ series variants maintain identical voltage ratings (600V off-state), gate trigger parameters (1.5V maximum, 10mA maximum), on-state voltage drop (1.6V maximum), and hold current (35mA maximum). The higher current ratings ensure operation within the same electrical envelope. The TO-220-3 package, mounting type, and operating temperature range are identical.

Q: What is the difference between SJ and SV series SCRs in this comparison?

A: The primary distinction is SCR type classification. SJ series components are Standard Recovery thyristors, while SV6016R2TP is classified as Sensitive Gate. Both maintain the same voltage and gate trigger specifications. The SV variant may be selected when gate drive circuits are optimized for sensitive gate operation.

Q: Are all parts in the same package configuration?

A: All parts listed use TO-220-3 package with through-hole mounting. Physical footprint and PCB layout requirements are identical across the SJ6012R2TP and all substitute parts.

Q: Do the higher current-rated parts have the same on-state voltage characteristics?

A: All parts maintain identical maximum on-state voltage (Vtm) of 1.6V. Current-on-state average (It (AV)) values vary with RMS current rating, but the maximum voltage drop specification remains constant.

Q: Are environmental compliance certifications consistent across all parts?

A: All parts carry ROHS3 compliance, REACH Unaffected status, Moisture Sensitivity Level 1 (Unlimited), and ECCN EAR99 classification. Environmental and regulatory compliance is identical.

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