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Q401E3
Triac, Teccor®, 400 V, 1 A, TO-92, 1.3 V, 16.7 A, 15 mA
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: LITTELFUSE
- Product type:
- Peak Repetitive Off-State Voltage, Vdrm:400V; On State RMS Current IT(rms):1A; Triac Case Style:TO-92; Gate Trigger Current Max (QI), Igt:10mA; Gate Trigger Voltage Max Vgt:1.3V; Peak Gate Power
- MSL: MSL 1 - Unlimited
- SVHC: To Be Advised
- No. of Pins: 3Pins
- Product Range: Qx01Ex
- Triac Case Style: TO-92
- Thyristor Mounting: Through Hole
- Holding Current Max: 15mA
- On State RMS Current: 1A
- Peak On State Voltage: 1.6V
- Gate Trigger Voltage Max: 1.3V
- Operating Temperature Max: 125°C
- Peak Non Repetitive Surge Current: 16.7A
- Peak Repetitive Off State Voltage: 400V
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 0.56 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**Teccor[®] brand Thyristors** 1 Amp Sensitive & Standard Triacs ~~RoHS [_]~~ ## Lx01Ex & LxNx & Qx01Ex & QxNx Serie ~~s~~ ## **Description** ~~Lo~~ 1 Amp bi-directional 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 devices guarantee gate control in Quadrants I & IV needed for digital control circuitry. **Standard** type devices normally operate in Quadrants I & III triggered from AC line. ## **Features & Benefits** - RoHS Compliant - Surge capability up to 20 A • Glass – passivated junctions **==> picture [505 x 121] intentionally omitted <==** **----- Start of picture text -----**<br> • Glass – passivated<br>Main Features<br>Lo junctions<br>Symbol Value Unit • Voltage capability up to<br>600 V<br>I 1 A<br>T(RMS)<br>VDRM/VRRM 400 to 600 V Applications<br>IGT (Q1) 3 to 25 mA<br>TT<br>Excellent for lower current heating controls, water valves,<br>and solenoids.<br>Schematic Symbol Typical applications are AC solid-state switches, home/<br>Lo<br>**----- End of picture text -----**<br> Typical applications are AC solid-state switches, home/ brown goods and white goods appliances. Sensitive gate Triacs can be directly driven by microprocessor or popular opto-couplers/isolators. **==> picture [150 x 45] intentionally omitted <==** **----- Start of picture text -----**<br> MT2 MT1<br>G<br>**----- End of picture text -----**<br> ## **Additional Information** **==> picture [197 x 8] intentionally omitted <==** **----- Start of picture text -----**<br> Datasheet Resources Samples<br>**----- End of picture text -----**<br> ## **Absolute Maximum Ratings — Sensitive Triacs (4 Quadrants)** ~~Lo~~ |Symbol|Parameter|Parameter||Value|Unit| |---|---|---|---|---|---| |IT(RMS)|RMS on-state current<br>(full sine wave)|Lx01Ey/LxNy|TC= 50°C|1|A| |ITSM|Non repetitive surge peak on-state current<br>(full cycle, TJinitial = 25°C)|f = 50 Hz<br>f = 60 Hz|t = 20 ms<br>t = 16.7 ms|16.7<br>20|A| |I2t|I2t Value for fusing|tp= 8.3 ms||1.6|A2s| |di/dt|Critical rate of rise of on-state current<br>(IG= 50mA with≤0.1μs rise time)|f = 120 Hz|TJ = 110°C|20|A/μs| |IGTM|Peak gate trigger current|tp ≤10 μs|TJ = 110°C|1|A| |PG(AV)|Average gate power dissipation||TJ = 110°C|0.2|W| |Tstg|Storage temperature range||Lx01Ey<br>LxNy|-65 to 150<br>-40 to 125|°C| |TJ|Operating junction temperature range||Lx01Ey<br>LxNy|-65 to 110<br>-40 to 110|°C| Note: x = voltage, y = sensitivity © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/24/16 **Teccor[®] brand Thyristors** 1 Amp Sensitive & Standard Triacs **==> picture [93 x 32] intentionally omitted <==** ## **Absolute Maximum Ratings — Standard Triacs** **==> picture [507 x 413] intentionally omitted <==** **----- Start of picture text -----**<br> Symbol Parameter Value Unit<br>RMS on-state current<br>IT(RMS) (full sine wave) Qx01Ey/QxNy TC = 60°C 1 A<br>ITSM Non repetitive surge peak on-state current (full cycle, TJ initial = 25°C) f = 50 Hzf = 60 Hz t = 16.7 mst = 20 ms 16.720 A<br>I [2] t I [2] t Value for fusing tp = 8.3 ms 1.6 A [2] s<br>Critical rate of rise of on-state current<br>di/dt (IG = 200mA with ≤ 0.1μs rise time) f = 120 Hz TJ = 125°C 20 A/μs<br>IGTM Peak gate trigger current tpIGT≤ 10 μs; ≤ IGTM TJ = 125°C 1 A<br>PG(AV) Average gate power dissipation TJ = 125°C 0.2 W<br>Qx01Ey -65 to 150<br>Tstg Storage temperature range QxNy -40 to 150 °C<br>Qx01Ey -65 to 125<br>TJ Operating junction temperature range QxNy -40 to 125 °C<br>Note: x = voltage, y = sensitivity<br>Electrical Characteristics (TJ = 25°C, unless otherwise specified) — Sensitive Triac (4 Quadrants)<br>Lx01E3 Lx01E5 Lx01E6 Lx01E8<br>Symbol Test Conditions Quadrant Unit<br>LxN3 LxN5 LxN6 LxN8<br>I – II – III 3 5 5 10<br>IGT VD = 12V RL = 60 Ω IV MAX. 3 5 10 20 mA<br>VGT VD = 12V RL = 60 Ω ALL MAX. 1.3 V<br>VGD VD = VDRM RL = 3.3 kΩ TJ = 110°C ALL MIN. 0.2 V<br>IH IT = 100mA MAX. 5 10 10 15 mA<br>400V 20 20 30 35<br>dv/dt VD = VDRM Gate Open TJ = 100°C 600V TYP. 10 10 20 25 V/μs<br>(dv/dt)c (di/dt)c = 0.54 A/ms TJ = 110°C TYP. 0.5 1 1 1 V/μs<br>tgt IG = 2 x IGT PW = 15μs IT = 1.41 A(pk) TYP. 2.8 3.0 3.0 3.2 μs<br>**----- End of picture text -----**<br> ## **Electrical Characteristics (TJ = 25°C, unless otherwise specified) — Standard Triac** **==> picture [507 x 165] intentionally omitted <==** **----- Start of picture text -----**<br> Qx01E3 Qx01E4<br>Symbol Test Conditions Quadrant Unit<br>QxN3 QxN4<br>I – II – III MAX. 10 25<br>IGT VD = 12V RL = 60 Ω IV TYP. 25 50 mA<br>VGT VD = 12V RL = 60 Ω I – II – III MAX. 1.3 1.3 V<br>VGD VD = VDRM RL = 3.3 kΩ TJ = 125°C ALL MIN. 0.2 0.2 V<br>IH IT = 200mA MAX. 15 25 mA<br>400V 30 40<br>dv/dt VD = VDRM Gate Open TJ = 125°C 600V MIN. 20 30 V/μs<br>(dv/dt)c (di/dt)c = 0.54 A/ms TJ = 125°C TYP. 1 1 V/μs<br>tgt IG = 2 x IGT PW = 15μs IT = 1.41 A(pk) TYP. 2.5 3.0 μs<br>**----- End of picture text -----**<br> Note: x = voltage, y = sensitivity © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/24/16 **Teccor[®] brand Thyristors** 1 Amp Sensitive & Standard Triacs **==> picture [94 x 32] intentionally omitted <==** **==> picture [507 x 231] intentionally omitted <==** **----- Start of picture text -----**<br> Static Characteristics (TJ = 25°C, unless otherwise specified)<br>Symbol Test Conditions Value Unit<br>VTM ITM = 1.41A tp = 380 µs MAX. 1.60 V<br>Lx01Ey / LxNy TJ = 25°C 400-600V 2 μA<br>IIDRMRRM VDRM = VRRM MAX. Qx01Ey / QxNy TTJJ = 110°C = 25°C 400-600V400-600V 0.15 mAμA<br>TJ = 125°C 400-600V 1 mA<br>Thermal Resistances<br>Symbol Parameter Value Unit<br>L/Qx01Ey 50<br>Rθ(J-C) Junction to case (AC) L/QxNy 40 [*] °C/W<br>Rθ(J-A) Junction to ambient L/Qx01Ey 95 °C/W<br>**----- End of picture text -----**<br> Note: * = Mounted on 1 cm[2 ] copper (two-ounce) foil surface ## **Figure 1: Definition of Quadrants** **==> picture [243 x 176] 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>**----- End of picture text -----**<br> **==> picture [243 x 208] intentionally omitted <==** **----- Start of picture text -----**<br> Figure 2: Normalized DC Gate Trigger Current for<br>All Quadrants vs. Junction Temperature<br>4.0<br>3.0<br>2.0<br>1.0<br>0.0<br>-65 -40 -15 10 35 60 85 110 125<br>Junction Temperature (Tj) - ºC<br>=25ºC)(Tj<br>GT<br>/I<br>GT<br>Ratio of I<br>**----- End of picture text -----**<br> © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/24/16 **Teccor[®] brand Thyristors** 1 Amp Sensitive & Standard Triacs **==> picture [93 x 32] intentionally omitted <==** **==> picture [244 x 641] intentionally omitted <==** **----- Start of picture text -----**<br> Figure 3: Normalized DC Holding Current<br>vs. Junction Temperature<br>4.0<br>3.0<br>2.0<br>1.0<br>0.0<br>-65 -40 -15 10 35 60 85 110 125<br>Junction Temperature (Tj) - ºC<br>Figure 5: Power Dissipation (Typical)<br>vs. RMS On-State Current<br>1.5<br>CURRENT WAVE FORM: Sinusoidal<br>LOAD: Resistive or Inductive<br>CONDUCTION ANGLE: 360°<br>1.0<br>0.5<br>0.0<br>0 0.25 0.5 0.75 1.0 1.25<br>RMS On-State Current (IT(RMS)) - Amps<br>Figure 7: Maximum Allowable Ambient Temperature<br>vs. On-State Current<br>120<br>CURRENT WAVEFORM: Sinusoidal<br>LOAD: Resistive or Inductive<br>CONDUCTION ANGLE: 360º<br>100 FREE AIR RATING - NO HEATSINK<br>80<br>60<br>40<br>20<br>0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7<br>RMS On-State Current [IT(RMS)] - AMPS<br>= 25ºC) (TRatio of I / IHHj<br>) - Watts<br>D(AV)<br>Average On-State<br>Power Dissipation (P<br>(T) - ºCA<br>Max Allowable Ambient Temperature<br>**----- End of picture text -----**<br> **==> picture [244 x 641] intentionally omitted <==** **----- Start of picture text -----**<br> Figure 4: Normalized DC Gate Trigger Voltage for<br>All Quadrants vs. Junction Temperature<br>2.0<br>1.5<br>1.0<br>0.5<br>0.0<br>-65 -40 -15 10 35 60 85 110 125<br>Junction Temperature (Tj) - ºC<br>Figure 6: Maximum Allowable Case Temperature<br>vs. On-State Current<br>130<br>CURRENT WAVE FORM: Sinusoidal<br>LOAD: Resistive or Inductive<br>120 CONDUCTION ANGLE: 360º<br>CASE TEMPERATURE: Measured as shown<br>on Dimensional Drawing<br>110<br>Qx01Ex /QxNx<br>100<br>90<br>Lx01Ex / LxNx<br>80<br>70<br>60<br>50<br>0 0.2 0.4 0.6 0.8 1 1.2<br>RMS On-State Current [IT(RMS)] - AMPS<br>Figure 8: On-State Current vs. On-State Voltage<br>(Typical)<br>8<br>7<br>6<br>5<br>TC = 25ºC<br>4<br>3<br>2<br>1<br>0<br>0.6 0.8 1.0 1.2 1.4 1.6 1.8<br>Positive or Negative Instantaneous On-State Voltage<br>(VT) - Volts<br> = 25ºC) (Tj<br>GT<br>/V<br>GT<br>Ratio of V<br>) - ºCMax Allowable Case Temperature (TC<br>) - AMPSOn-State Current (IT<br>Positive or Negative Instantaneous<br>**----- End of picture text -----**<br> © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/24/16 **Teccor[®] brand Thyristors** 1 Amp Sensitive & Standard Triacs **==> picture [94 x 32] intentionally omitted <==** ## **Figure 9: Surge Peak On-State Current vs. Number of Cycles** **==> picture [505 x 206] intentionally omitted <==** **----- Start of picture text -----**<br> 100<br>Supply Frequency: 60Hz Sinusoidal<br>Load: Resistive<br>Specific Case TemperatureRMS On-State [IT(RMS)]: Max Rated Value at<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>) – Amps<br>TSM<br>(I<br>Peak Surge (Non-repetitive) On-State Current<br>**----- End of picture text -----**<br> ## **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| **==> 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> © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/24/16 **Teccor[®] brand Thyristors** 1 Amp Sensitive & Standard Triacs **==> picture [93 x 32] intentionally omitted <==** |**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 [245 x 216] intentionally omitted <==** **----- Start of picture text -----**<br> Environmental Specifications<br>Test Specifications and Conditions<br>MIL-STD-750, M-1040, Cond A Applied<br>AC Blocking<br>Peak AC voltage @ 125°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> ## **Dimensions - Compak (C Package)** **==> picture [236 x 267] intentionally omitted <==** **----- Start of picture text -----**<br> TC / TL Temperature<br>Measurement Point<br>B Gate<br>D<br>M<br>N<br>P<br>A C<br>MT1<br>MT2<br>H F<br>L<br>E J<br>K G<br>0.079 0.079 0.079<br>(2.0) (2.0) (2.0)<br>0.040<br>(1.0)<br>0.110 0.030<br>(2.8) (0.76)<br>Dimensions are in inches<br>(and millimeters).<br>Pad Outline<br>**----- End of picture text -----**<br> **==> picture [246 x 227] intentionally omitted <==** **----- Start of picture text -----**<br> Inches Millimeters<br>Dimension<br>Min Max Min Max<br>A 0.130 0.156 3.30 3.95<br>B 0.201 0.220 5.10 5.60<br>C 0.077 0.087 1.95 2.20<br>D 0.159 0.181 4.05 4.60<br>E 0.030 0.063 0.75 1.60<br>F 0.075 0.096 1.90 2.45<br>G 0.002 0.008 0.05 0.20<br>H 0.077 0.104 1.95 2.65<br>J 0.043 0.053 1.09 1.35<br>K 0.006 0.016 0.15 0.41<br>L 0.030 0.055 0.76 1.40<br>M 0.022 0.028 0.56 0.71<br>N 0.027 0.033 0.69 0.84<br>P 0.052 0.058 1.32 1.47<br>**----- End of picture text -----**<br> © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/24/16 **Teccor[®] brand Thyristors** 1 Amp Sensitive & Standard Triacs **==> picture [94 x 32] intentionally omitted <==** ## **Dimensions - TO-92 (E Package)** **==> picture [507 x 418] intentionally omitted <==** **----- Start of picture text -----**<br> TC Measuring Point Inches Millimeters<br>Dimension<br>Min Max Min Max<br>A<br>A 0.176 0.196 4.47 4.98<br>B 0.500 - 12.70 -<br>D 0.095 0.105 2.41 2.67<br>E 0.150 - 3.81 -<br>B<br>F 0.046 0.054 1.16 1.37<br>G 0.135 0.145 3.43 3.68<br>H 0.088 0.096 2.23 2.44<br>J 0.176 0.186 4.47 4.73<br>MT1<br>Gate MT2 K 0.088 0.096 2.23 2.44<br>E L 0.013 0.019 0.33 0.48<br>G M 0.013 0.017 0.33 0.43<br>M H<br>F All leads insulated from case. Case is electrically nonconductive.<br>L<br>D<br>K<br>J<br>Product Selector<br>Voltage Gate Sensitivity Quadrants<br>Part Number Type Package<br>400V 600V I – II – III IV<br>Lx01E3 X X 3 mA 3 mA Sensitive Triac TO-92<br>LxN3 X X 3 mA 3 mA Sensitive Triac Compak<br>Lx01E5 X X 5 mA 5 mA Sensitive Triac TO-92<br>LxN5 X X 5 mA 5 mA Sensitive Triac Compak<br>Lx01E6 X X 5 mA 10 mA Sensitive Triac TO-92<br>Lx01E8 X X 10 mA 20 mA Sensitive Triac TO-92<br>Qx01E3 X X 10 mA Standard Triac TO-92<br>QxN3 X X 10 mA Standard Triac Compak<br>Qx01E4 X X 25 mA Standard Triac TO-92<br>QxN4 X X 25 mA Standard Triac Compak<br>**----- End of picture text -----**<br> Note: x- voltage ## **Packing Options** |**Packing Options**||||| |---|---|---|---|---| |Part Number|Marking|Weight|Packing Mode|Base Quantity| |L/Qx01Ey|L/Qx01Ey|0.188 g|Bulk|2000| |L/Qx01EyRP|L/Qx01Ey|0.188 g|Reel Pack|2000| |L/Qx01EyAP|L/Qx01Ey|0.188 g|Ammo Pack|2000| |L/QxNyRP|L/QxNy|0.081 g|Embossed Carrier|2500| Note: x = Voltage; y = Sensitivity © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/24/16 **Teccor[®] brand Thyristors** 1 Amp Sensitive & Standard Triacs **==> picture [93 x 32] intentionally omitted <==** ## **TO-92 (3-lead) Reel Pack (RP) Radial Leaded** ## **Meets all EIA-468-C Standards** **==> picture [505 x 256] intentionally omitted <==** **----- Start of picture text -----**<br> 1.6 0.236(6.0) 0.02 (0.5) 0.098 (2.5) MAX 1.26<br>(41.0) (32.0)<br>0.708<br>(18.0) 0.354<br>(9.0)<br>(12.7)0.5 0.1 (2.54) MT1 MT2<br>0.2 (5.08) Gate<br>14.17(360.0) 0.157 DIA<br> (4.0)<br>Flat up<br>1.97<br>(50.0)<br>Dimensions<br>are in inches<br>Direction of Feed (and millimeters).<br>**----- End of picture text -----**<br> ## **TO-92 (3-lead) Ammo Pack (AP) Radial Leaded** ## **Meets all EIA-468-C Standards** **==> picture [504 x 257] intentionally omitted <==** **----- Start of picture text -----**<br> 0.236(6.0) 0.02 (0.5) 0.098 (2.5) MAX 1.27<br>1.62 (32.2)<br>(41.2)<br>0.708<br>(18.0) 0.354<br>(9.0)<br>(12.7)0.5 0.1 (2.54) 0.2 (5.08)MT2 GateMT1 0.157 DIA(4.0)<br>Flat down<br>25 Devices per fold<br>1.85<br>(47.0)<br>12.2<br>(310.0)<br>Dimensions<br>are in inches<br>1.85 (and millimeters).<br>(47.0)<br>13.3<br>(338.0)<br>Direction of Feed<br>**----- End of picture text -----**<br> © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/24/16 **Teccor[®] brand Thyristors** 1 Amp Sensitive & Standard Triacs **==> picture [94 x 32] intentionally omitted <==** ## **Compak Embossed Carrier Reel Pack (RP)** ## **Meets all EIA-481-1 Standards** **==> picture [505 x 256] intentionally omitted <==** **----- Start of picture text -----**<br> 0.157 MT2<br>(4.0)<br>0.47<br>0.36<br>(12.0)<br>(9.2)<br>8.0<br>0.315 MT1 Gate 0.059 DIA Cover tape<br>(8.0) (1.5)<br>12.99<br>0.512 (13.0) Arbor (330.0)<br>Hole Dia. Dimensions<br>are in inches<br>(and millimeters).<br>0.49<br>(12.4)<br>Direction of Feed<br>**----- End of picture text -----**<br> **Part Numbering System** **Part Marking System** **==> picture [486 x 147] intentionally omitted <==** **----- Start of picture text -----**<br> L 4 01 E 3<br>TO-92 (E Package) Compak (C Package)<br>DEVICE TYPE SENSITIVITY & TYPE<br>L : Sensitive Triac Sensitive Triac:<br>Q : Triac 3 : 3 mA (QI, II, III, IV) L401E3 L4N3<br>5 : 5 mA (QI, II, III, IV)<br>6 : 5 mA (QI, II, III)<br>10 mA (QIV)<br>VOLTAGE RATING 8 : 10 mA (QI, II, III) ® YMLXX ® YMXXX<br>4 : 400V 20 mA (QIV)<br>6 : 600V Standard Triac:<br>3 : 10 mA (QI, II, III)<br>4 : 25 mA (QI, II, III)<br>Date Code MarkingY:Year Code Date Code MarkingY:Year Code<br>M: Month Code M: Month Code<br>CURRENT RATING PACKAGE TYPE L: Location Code XXX: Lot Trace Code<br>01 N : 1.0A (TO-92) : 1.0A (Compak) Blank : Compak (Surface Mount) XX: Lot Serial Code<br>E : TO-92<br>**----- End of picture text -----**<br> ## Compak (C Package) © 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/24/16
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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