SV6012L2TP Equivalent & Substitute Parts

Part Overview

The SV6012L2TP is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse Inc., rated for 600 V off-state voltage and 12 A RMS on-state current. This thyristor operates as a sensitive gate device in the TO-220-3 package with isolated tab configuration. The part is Active status and ROHS3 compliant, designed for through-hole mounting applications requiring high-temperature operation from -40°C to 150°C junction temperature.

Substitute parts are necessary when application requirements demand higher current ratings, different SCR gate sensitivity characteristics, or when inventory availability of the primary part is limited. The substitute devices listed maintain electrical compatibility through identical voltage ratings, gate trigger specifications, and thermal operating ranges while offering alternative current handling capabilities and recovery characteristics.

Key Parameters

Parameter	SV6012L2TP Value	Unit
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
Current - On State (It (RMS)) (Max)	12	A
Current - Hold (Ih) (Max)	35	mA
Current - Off State (Max)	10	µA
Operating Temperature Range	-40 to 150	°C (TJ)
Package / Case	TO-220-3 Full Pack, Isolated Tab
Mounting Type	Through Hole
SCR Type	Sensitive Gate

Substitute Part Grouping Explanation

Substitution of the SV6012L2TP is determined by the following critical parameters that must remain constant across all equivalent devices:

Fixed Electrical Parameters (Non-Negotiable):

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
Current - Hold (Ih) (Max): 35 mA
Current - Off State (Max): 10 µA
Operating Temperature Range: -40°C to 150°C (TJ)

Variable Parameters (Application-Dependent):

Current - On State (It (RMS)) (Max): 12 A to 25 A
Current - Non Rep. Surge (Itsm): 100 A to 350 A
SCR Type: Sensitive Gate or Standard Recovery

All substitute parts maintain identical voltage ratings, gate trigger characteristics, and thermal specifications. Substitutes differ in maximum on-state current capacity and surge current handling, allowing selection based on application current requirements. The SV6012L2TP (Sensitive Gate type) can be substituted with Standard Recovery variants when gate sensitivity is not a critical design parameter.

Parameter Comparison

Parameter	SV6012L2TP	SJ6020L2TP	SJ6025L2TP	SV6016L2QTP	SV6016L2TP	SV6025L2QTP	SV6025L2TP
Voltage - Off State (V)	600	600	600	600	600	600	600
Voltage - Gate Trigger (Vgt) (Max) (V)	1.5	1.5	1.5	1.5	1.5	1.5	1.5
Current - Gate Trigger (Igt) (Max) (mA)	10	10	10	10	10	10	10
Voltage - On State (Vtm) (Max) (V)	1.6	1.6	1.6	1.6	1.6	1.6	1.6
Current - On State (It (RMS)) (Max) (A)	12	20	25	16	16	25	25
Current - Hold (Ih) (Max) (mA)	35	35	35	35	35	35	35
Current - Off State (Max) (µA)	10	10	10	10	10	10	10
Operating Temperature Range (°C)	-40 to 150	-40 to 150	-40 to 150	-40 to 150	-40 to 150	-40 to 150	-40 to 150
Package / Case	TO-220-3 Full Pack, Isolated Tab	TO-220-3 Full Pack, Isolated Tab	TO-220-3 Full Pack, Isolated Tab	TO-220-3 Full Pack, Isolated Tab	TO-220-3 Full Pack, Isolated Tab	TO-220-3 Full Pack, Isolated Tab	TO-220-3 Full Pack, Isolated Tab
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
SCR Type	Sensitive Gate	Standard Recovery	Standard Recovery	Standard Recovery	Standard Recovery	Standard Recovery	Standard Recovery
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All substitute parts listed are Active status products manufactured by Littelfuse Inc. and maintain full ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility with the original SV6012L2TP device.

Current Rating Selection:

SV6016L2QTP / SV6016L2TP: Select for applications requiring 16 A RMS on-state current. These devices provide 33% higher current capacity than the SV6012L2TP while maintaining identical voltage and gate trigger specifications. Both variants are functionally equivalent with Standard Recovery characteristics.
SJ6020L2TP: Select for applications requiring 20 A RMS on-state current. This Standard Recovery device offers 67% higher current capacity and increased surge current handling (225 A / 300 A at 50/60 Hz) compared to the SV6012L2TP.
SJ6025L2TP / SV6025L2QTP / SV6025L2TP: Select for applications requiring 25 A RMS on-state current. These devices provide 108% higher current capacity and maximum surge current handling (300 A / 350 A at 50/60 Hz). SV6025L2QTP and SV6025L2TP are functionally equivalent variants.

SCR Type Consideration:

The SV6012L2TP operates as a Sensitive Gate device, requiring lower gate trigger current for activation. All substitute parts except SV6016L2QTP, SV6016L2TP, SV6025L2QTP, and SV6025L2TP operate as Standard Recovery devices. Standard Recovery variants maintain identical gate trigger specifications (1.5 V maximum, 10 mA maximum) and are electrically compatible for direct substitution in applications where gate sensitivity is not a critical design constraint.

Frequently Asked Questions (FAQ)

Q: Can the SV6012L2TP be directly replaced with a higher current-rated substitute?

A: Direct replacement is possible when the application circuit can accommodate the higher current rating. All substitute parts maintain identical voltage ratings (600 V off-state), gate trigger specifications (1.5 V maximum, 10 mA maximum), and thermal operating range (-40°C to 150°C). The higher current rating does not create incompatibility; it provides additional design margin. Circuit validation is required to confirm the substitute device operates within intended application parameters.

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

A: The SV6012L2TP is classified as Sensitive Gate type. All substitute parts are Standard Recovery type. Both types maintain identical gate trigger voltage (1.5 V maximum) and gate trigger current (10 mA maximum) specifications. The classification refers to internal device characteristics affecting switching behavior and recovery time, not gate activation requirements. Standard Recovery devices are electrically compatible for gate triggering purposes.

Q: Are all substitute parts available in the same TO-220-3 package?

A: All substitute parts are packaged in TO-220-3 Full Pack with isolated tab configuration, identical to the SV6012L2TP. Mounting type is through-hole for all devices. PCB layout and thermal management considerations remain consistent across all parts listed.

Q: Which substitute part should be selected for maximum current capacity?

A: The SJ6025L2TP, SV6025L2QTP, and SV6025L2TP all provide 25 A RMS on-state current, the highest rating among available substitutes. These devices also offer maximum surge current handling at 300 A / 350 A (50/60 Hz). Selection between these three variants depends on availability and specific application requirements, as they are electrically equivalent.

Q: Do all substitute parts maintain ROHS3 compliance?

A: All substitute parts listed are ROHS3 compliant and REACH Unaffected, matching the regulatory status of the SV6012L2TP. No compliance degradation occurs when substituting to any listed device.

Q: What is the significance of the non-repetitive surge current rating?

A: The non-repetitive surge current (Itsm) rating indicates the maximum current the device can withstand during transient surge conditions at 50 Hz and 60 Hz. The SV6012L2TP is rated for 100 A / 120 A surge current. Higher-rated substitutes provide increased surge current capacity: SV6016L2QTP and SV6016L2TP at 188 A / 225 A, SJ6020L2TP at 225 A / 300 A, and SJ6025L2TP, SV6025L2QTP, SV6025L2TP at 300 A / 350 A. Selection depends on application transient requirements.

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