LJxx08xx/QJxx08xHx Series - 8 Amp High Temp Sensitive & Alternistor (High Commutation) Triacs

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This 8 A High Temperature Alternistor Triac solid state switch series is designed for AC switching and phase control applications such as motor speed and temperature modulation controls, lighting controls, and static switching relays.

Sensitive type components guarantee gate control in Quadrants I & IV needed for digital control circuitry.

Alternistor type components only operate in quadrants I, II, & III and are used in circuits requiring high dv/dt capability.


  • 150°C maximum junction temperature
  • Voltage capability up to 600V
  • Surge capability up to 84A at 60Hz half cycle
  • Solid-state switching eliminates arcing or contact bounce that create voltage transients
  • No contacts to wear out from reaction of switching events
  • Restricted (or limited) RFI generation, depending on activation point of sine wave
  • Requires only a short gate activation pulse in each half-cycle
  • Halogen free and RoHS compliant


Excellent for AC switching and phase control applications such as heating, lighting, and motor speed controls. Typical applications are AC solid-state switches, light dimmers, power tools, home/brown goods and white goods appliances. Alternistor Triacs (no snubber required) are used in applications with high inductive loads requiring the highest commutation performance. Internally constructed isolated packages are offered for ease of heat sinking with highest isolation voltage.

Access specifications, certifications, check availability and order parts below

Catalog #SizeIT(RMS) (A)VDRM (V)IDRM@
di/dt @
LJ4008D8RPTO25284000.01101010201.584150Surface MountCheckOrder
LJ4008D8TPTO25284000.01101010201.584150Surface MountCheckOrder
LJ4008V8TPTO25184000.01101010201.584150Through Hole RadialCheckOrder
LJ6008D8RPTO25286000.01101010201.584150Surface MountCheckOrder
LJ6008D8TPTO25286000.01101010201.584150Surface MountCheckOrder
LJ6008V8TPTO25186000.01101010201.584150Through Hole RadialCheckOrder
QJ4008DH3RPTO25284000.011010101.58470Surface MountCheckOrder
QJ4008DH3TPTO25284000.011010101.58470Surface MountCheckOrder
QJ4008DH4RPTO25284000.013535351.58470Surface MountCheckOrder
QJ4008DH4TPTO25284000.013535351.58470Surface MountCheckOrder
QJ4008VH3TPTO25184000.011010101.58470Through Hole RadialCheckOrder
QJ4008VH4TPTO25184000.013535351.58470Through Hole RadialCheckOrder
QJ6008DH3RPTO25286000.011010101.58470Surface MountCheckOrder
QJ6008DH3TPTO25286000.011010101.58470Surface MountCheckOrder
QJ6008DH4RPTO25286000.013535351.58470Surface MountCheckOrder
QJ6008DH4TPTO25286000.013535351.58470Surface MountCheckOrder
QJ6008VH3TPTO25186000.011010101.58470Through Hole RadialCheckOrder
QJ6008VH4TPTO25186000.013535351.58470Through Hole RadialCheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
QJ6008DH4RP RoHS No 02/16/2020 PbFree No 02/16/2020 Yes
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