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Q6008LH1LED
TRIAC, ALTERNISTOR TRIACS, 600V, 8A, TO-
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- Manufacturer: LITTELFUSE
- Product type:
- TRIAC, ALTERNISTOR TRIACS, 600V, 8A, TO-220AB; Peak Repetitive Off-State Voltage, Vdrm:600V; Gate Trigger Current Max (QI), Igt:10mA; Peak Gate Power:-; Gate Trigger Voltage Max
- MSL: -
- SVHC: No SVHC (17-Dec-2014)
- No. of Pins: 3Pins
- Product Range: -
- Triac Case Style: TO-220AB
- Holding Current Max: 6mA
- On State RMS Current: 8A
- Gate Trigger Voltage Max: 1.3V
- Operating Temperature Max: 110°C
- Peak Non Repetitive Surge Current: 80A
- Peak Repetitive Off State Voltage: 600V
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 0.521 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**Teccor[®] brand Thyristors** 8 Amp Alternistor (High Commutation) Triac for LED dimmer application ## Q6008xH1LED Series ## ~~RoHS |[J]~~ ## **Description** Q6008LH1LED series is designed to meet low load current characteristics typical in LED lighting applications. By keeping holding current at 6mA maximum, this Triac series is characterized and specified to perform best with LED loads. The Q6008LH1LED series is best suited for LED dimming controls to obtain the lowest levels of light output with a minimum probability of flickering. Q6008LH1LED series is offered in the industry standard TO-220AB package with an isolated mounting tab that makes it best suited for adding an external heat sink. **==> picture [380 x 63] intentionally omitted <==** **----- Start of picture text -----**<br> Agency Approval Features<br>ee Pe<br>• As low as 6mA max<br>Agency Agency File Number<br>holding current<br>L Package: E71639<br>wo<br>**----- End of picture text -----**<br> - **Features Benefits** • As low as 6mA max • Provides full control holding current of light out put at the extreme low end of load conditions. - UL Recognized TO• 2500V AC min isolation 220AB package between mounting tab and active terminals **==> picture [243 x 86] intentionally omitted <==** **----- Start of picture text -----**<br> Main Features<br>Lo<br>Symbol Value Unit<br>IT(RMS) 8 A<br>VDRM/VRRM 600 V<br>IGT 10 mA<br>**----- End of picture text -----**<br> - 110°C rated junction • Improves margin of safe temperature operation with less heat sinking required - di/dt performance of • Enable survivability 70A/μs of typically LED load operating characteristics - QUADRAC version • Simplicity of circuit design includes intergrated DIAC & layout **==> picture [243 x 180] intentionally omitted <==** **----- Start of picture text -----**<br> Schematic Symbol<br>Lo<br>MT2 MT1<br>G<br>Additional Information<br>el<br>Datasheet Resources Samples<br>**----- End of picture text -----**<br> ## **Applications** Excellent for AC switching and phase control applications such as heating, lighting, and motor speed controls. Typical applications are AC solid-state switches, lighting controls with LED lamp loads, small low current motor in power tools, and low current motors in home/brown goods appliances. Internally constructed isolated packages are offered for ease of heat sinking with highest isolation voltage. © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/02/16 **Teccor[®] brand Thyristors** 8 Amp Alternistor (High Commutation) Triac for LED dimmer application **==> picture [94 x 32] intentionally omitted <==** **Absolute Maximum Ratings** **==> picture [506 x 208] intentionally omitted <==** **----- Start of picture text -----**<br> Symbol Parameter Test Conditions Value Unit<br>IT(RMS) RMS on-state current (full sine wave) TC = 80°C 8 A<br>f = 50 Hz t = 20 ms 80<br>Non repetitive surge peak on-state current<br>ITSM (full cycle, TJ initial = 25°C) f = 60 Hz t = 16.7 ms 85 A<br>I [2] t I [2] t Value for fusing tp = 8.3 ms 30 A [2] s<br>di/dt Critical rate of rise of on-state current f = 120 Hz TJ = 110°C 70 A/μs<br>IGTM Peak gate trigger current tPIGT ≤ 10 μs; ≤ IGTM TJ = 110°C 1.6 A<br>PG(AV) Average gate power dissipation TJ = 110°C IGT = 35mA 0.5 W<br>Tstg Storage temperature range -40 to 150 °C<br>TJ Operating junction temperature range -40 to 110 °C<br>**----- End of picture text -----**<br> **Electrical Characteristics (TJ = 25°C, unless otherwise specified)** **==> picture [507 x 345] intentionally omitted <==** **----- Start of picture text -----**<br> Symbol Test Conditions Quadrant Value Unit<br>IGT VD = 12V RL = 60 Ω I – II – III MAX. 10 mA<br>VGT I – II – III 1.3 V<br>VGD VD = VDRM RL = 3.3 k Ω TJ = 110°C I – II – III MIN. 0.2 V<br>IH IT = 15mA MAX. 6 mA<br>dv/dt VD = VDRM Gate Open TJ = 110°C MIN. 50 V/μs<br>(dv/dt)c (di/dt)c = 4.3 A/ms TJ = 110°C MIN. 10 V/μs<br>tgt IG = 100mA PW = 15µs IT = 11.3 A(pk) TYP. 4.0 μs<br>Static Characteristics<br>Symbol Test Conditions Value Unit<br>VTM ITM = 11.3A tp = 380 µs MAX. 1.60 V<br>IIDRM RRM VDRM = VRRM TJ = 110°C MAX. 500 μA<br>Thermal Resistances<br>Symbol Parameter Value Unit<br>R θ (J-C) Junction to case (AC) 2.8 °C/W<br>R θ (J-A) Junction to ambient 50 °C/W<br>**----- End of picture text -----**<br> © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/02/16 **Teccor[®] brand Thyristors** 8 Amp Alternistor (High Commutation) Triac for LED dimmer application **==> picture [93 x 32] intentionally omitted <==** **==> picture [243 x 28] intentionally omitted <==** **----- Start of picture text -----**<br> Figure 1: Definition of Quadrants<br>**----- End of picture text -----**<br> **==> picture [245 x 609] intentionally omitted <==** **----- Start of picture text -----**<br> ALL POLARITIES ARE REFERENCED TO MT1<br>MT2 POSITIVE<br>MT2 (Positive Half Cycle)+ MT2<br>(-) IGT (+) IGT<br>GATE GATE<br>MT1 MT1<br>REF REF<br>IGT - QIIIQII QIQIV + IGT<br>MT2 MT2<br>(-) IGT (+) IGT<br>GATE GATE<br>MT1 MT1<br>-<br>REF MT2 NEGATIVE REF<br>(Negative Half Cycle)<br>Note: Alternistors will not operate in QIV<br>Figure 3: Normalized DC Holding Current<br>vs. Junction Temperature<br>3.5<br>3.0<br>2.5<br>2.0<br>1.5<br>1.0<br>0.5<br>0.0<br>-65 -40 -15 10 35 60 85 110<br>Junction Temperature (TJ)- ºC<br>Figure 5: Power Dissipation (Typical)<br>vs. RMS On-State Current<br>18<br>16<br>14<br>12<br>10<br>8<br>6<br>4<br>2<br>0<br>0 2 4 6 8 10<br>RMS On-State Current (IT(RMS)) - Amps<br>IH<br> = 25°C)(TJ<br>IH<br>Ratio of<br>) - Watts<br>D(AV)<br>Average On-State<br>Power Dissipation (P<br>**----- End of picture text -----**<br> **==> picture [244 x 208] intentionally omitted <==** **----- Start of picture text -----**<br> Figure 2: Normalized DC Gate Trigger Current for<br>All Quadrants vs. Junction Temperature<br>3.5<br>3.0<br>2.5<br>2.0<br>1.5<br>1.0<br>0.5<br>0.0<br>-65 -40 -15 10 35 60 85 110<br>Junction Temperature (TJ)- ºC<br>IGT = 25°C)(TJ<br>IGT<br>Ratio of<br>**----- End of picture text -----**<br> **Figure 4: Normalized DC Gate Trigger Voltage for All Quadrants vs. Junction Temperature** **==> picture [244 x 176] intentionally omitted <==** **----- Start of picture text -----**<br> 2.0<br>1.5<br>1.0<br>0.5<br>0.0<br>-65 -40 -15 10 35 60 85 110<br>Junction Temperature (TJ)- ºC<br>VGT = 25°C)J<br>(T<br>GT<br>V<br>Ratio of<br>**----- End of picture text -----**<br> **==> picture [245 x 207] intentionally omitted <==** **----- Start of picture text -----**<br> Figure 6: Maximum Allowable Case Temperature<br>vs. On-State Current (Standard / Alternistor Triac)<br>130<br>120<br>110<br>100<br>90<br>80<br>70<br>60<br>0 1 2 3 4 5 6 7 8<br>RMS On-State Current (IT(RMS)) - Amps<br>) - °CC<br>Maximum Allowable<br>Case Temperature (T<br>**----- End of picture text -----**<br> © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/02/16 **Teccor[®] brand Thyristors** 8 Amp Alternistor (High Commutation) Triac for LED dimmer application **==> picture [94 x 32] intentionally omitted <==** **==> picture [508 x 444] intentionally omitted <==** **----- Start of picture text -----**<br> Figure 7: On-State Current vs. On-State Voltage Figure 8: Maximum Allowable Ambient Temperature vs.<br>(Typical) On-State Current<br>20<br>120<br>TC = 25°C CURRENT WAVEFORM: Sinusoidal<br>LOAD: Resistive or Inductive CONDUCTION<br>16 100 ANGLE: 360FREE AIR RATING - NO HEATSINK<br>12<br>80<br>8<br>60<br>4 40<br>0 20<br>0.6 0.8 1.0 1.2 1.4 1.6 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8<br>Postitive or Negative Instantaneous On-State Voltage (vT) - Volts RMS On-State Current (IT(RMS)) - Amps<br>Figure 9: Surge Peak On-State Current vs. Number of Cycles<br>100<br>SUPPLY FREQUENCY: 60 Hz Sinusoidal<br>LOAD: Resistive<br>Value at Specified Case TemperatureRMS On-State Current: [IT(RMS)]: Maximum Rated<br>Notes:<br>1. Gate control may be lost during and immediately<br>following surge current interval.<br>10 2. Overload may not be repeated until junction<br>temperature has returned to steady-state<br>rated value.<br>1<br>1 10 100 1000<br>Surge Current Duration- Full Cycles<br>) - °CA<br>) - AmpsT<br>Maximum Allowable<br>On-State Current (i<br>Ambient Temperature (T<br>Postitive or Negative Instantaneous<br>) - Amps<br>TSM<br>Peak Surge (Non-Repetitive) On-State Current (I<br>**----- End of picture text -----**<br> © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/02/16 **Teccor[®] brand Thyristors** 8 Amp Alternistor (High Commutation) Triac for LED dimmer application **==> picture [93 x 32] intentionally omitted <==** ## **Soldering Parameters** |Refow Condition|Refow Condition|Pb – Free assembly| |---|---|---| |Pre Heat<br>- Temperature Min (Ts(min))<br>- Temperature Max (Ts(max))<br>- Time (min to max) (ts)<br>Average ramp up rate (Liquidus Temp)<br>(TL) to peak||150°C<br>200°C<br>60 – 180 secs<br>5°C/second max| |TS(max)to TL|- Ramp-up Rate|5°C/second max| |Refow|- Temperature (TL) (Liquidus)<br>- Temperature (tL)|217°C<br>60 – 150 seconds| |Peak Temperature (TP)||260+0/-5°C| |Time within 5°C of actual peak<br>Temperature (tp)||20 – 40 seconds| |Ramp-down Rate||5°C/second max| |Time 25°C|to peak Temperature (TP)|8 minutes Max.| |Do not exceed||280°C| |**Physical Specifcations**|**Physical Specifcations**| |---|---| |**Terminal Finish**<br>**Body Material**|100% Matte Tin-plated<br>UL recognized epoxy meeting fammability<br>classifcation 94V-0| |**Terminal Material**|Copper Alloy| ## **Design Considerations** Careful selection of the correct device for the application’s operating parameters and environment will go a long way toward extending the operating life of the Thyristor. Good design practice should limit the maximum continuous current through the main terminals to 75% of the device rating. Other ways to ensure long life for a power discrete semiconductor are proper heat sinking and selection of voltage ratings for worst case conditions. Overheating, overvoltage (including dv/dt), and surge currents are the main killers of semiconductors. Correct mounting, soldering, and forming of the leads also help protect against component damage. **==> picture [244 x 151] intentionally omitted <==** **----- Start of picture text -----**<br> t P<br>T P<br>Ramp-up<br>T S(max) T L t L<br>Ramp-down<br>Preheat<br>T S(min)<br>t S<br>25<br>time to peak temperature Time<br>Temperature<br>**----- End of picture text -----**<br> ## **Environmental Specifications** **==> picture [246 x 194] intentionally omitted <==** **----- Start of picture text -----**<br> Test Specifications and Conditions<br>MIL-STD-750, M-1040, Cond A Applied<br>AC Blocking (VDRM) Peak AC voltage @ 110°C for 1008 hours<br>MIL-STD-750, M-1051,<br>Temperature Cycling 100 cycles; -40°C to +150°C; 15-min<br>dwell-time<br>EIA / JEDEC, JESD22-A101<br>Temperature/<br>1008 hours; 320V - DC: 85°C; 85%<br>Humidity<br>rel humidity<br>MIL-STD-750, M-1031,<br>High Temp Storage<br>1008 hours; 150°C<br>Low-Temp Storage 1008 hours; -40°C<br>Resistance to<br>MIL-STD-750 Method 2031<br>Solder Heat<br>Solderability ANSI/J-STD-002, category 3, Test A<br>Lead Bend MIL-STD-750, M-2036 Cond E<br>**----- End of picture text -----**<br> © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/02/16 **Teccor[®] brand Thyristors** 8 Amp Alternistor (High Commutation) Triac for LED dimmer application **==> picture [94 x 32] intentionally omitted <==** ## **Dimensions — TO-220AB (L-Package) — Isolated Mounting Tab** **==> picture [230 x 192] intentionally omitted <==** **----- Start of picture text -----**<br> TC MEASURING POINT AREA (REF.) 0.17 IN [2]<br>O<br>E A P 8.13.320<br>B<br>C<br>13.36<br>D .526<br>7.01<br>.276<br>F<br>R<br>G<br>L<br>H<br>K N Note: Maximum torque to<br>J M be applied to mounting tab<br>MT1 MT2 GATE is 8 in-lbs. (0.904 Nm).<br>**----- End of picture text -----**<br> **==> picture [245 x 254] intentionally omitted <==** **----- Start of picture text -----**<br> Inches Millimeters<br>Dimension<br>Min Max Min Max<br>A 0.380 0.420 9.65 10.67<br>B 0.105 0.115 2.67 2.92<br>C 0.230 0.250 5.84 6.35<br>D 0.590 0.620 14.99 15.75<br>E 0.142 0.147 3.61 3.73<br>F 0.110 0.130 2.79 3.30<br>G 0.540 0.575 13.72 14.61<br>H 0.025 0.035 0.64 0.89<br>J 0.195 0.205 4.95 5.21<br>K 0.095 0.105 2.41 2.67<br>L 0.060 0.075 1.52 1.91<br>M 0.085 0.095 2.16 2.41<br>N 0.018 0.024 0.46 0.61<br>O 0.178 0.188 4.52 4.78<br>P 0.045 0.060 1.14 1.52<br>R 0.038 0.048 0.97 1.22<br>**----- End of picture text -----**<br> **Product Selector** Gate Sensitivity Quadrants Part Number Type Package I – II – III Q6008LH1LED 10 mA Alternistor Triac TO-220L **Packing Options** Part Number Marking Weight Packing Mode Base Quantity Q6008LH1LEDTP Q6008LH1 2.2 g Tube Pack 500 (50 per tube) **Part Numbering System** ## **Part Marking System** **==> picture [391 x 137] intentionally omitted <==** **----- Start of picture text -----**<br> Q 60 08 L H1 LED TO-220 AB - (L Package)<br>DEVICE TYPE LED LIGHTING APPLICATION<br>Q : Alternistor Triac<br>VOLTAGE RATING SENSITIVITY & TYPE<br>60 : 600V H1: 10mA (QI, II & III) Q6008LH1<br>YMXXX<br>CURRENT PACKAGE TYPE ®<br>08: 8A L : TO-220 Isolated<br>Date Code Marking<br>Y:Year Code<br>M: Month Code<br>XXX: Lot Trace Code<br>**----- End of picture text -----**<br> © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/02/16
Updated at June 8, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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