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AVS12CB
Automatic Voltage Switch, 50Hz/60Hz, 600v/12A, -10V to -8V Supply, TO220AB-3
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: STMICROELECTRONICS
- Product type:
- Peak Repetitive Off-State Voltage, Vdrm:600V; On State RMS Current IT(rms):12A; Triac Case Style:TO-220AB; Gate Trigger Current Max (QI), Igt:-; Gate Trigger Voltage Max Vgt:-; P
- MSL: MSL 1 - Unlimited
- SVHC: No SVHC (25-Jun-2025)
- No. of Pins: 3Pins
- Product Range: -
- Triac Case Style: TO-220AB
- Thyristor Mounting: Through Hole
- Holding Current Max: -
- On State RMS Current: 12A
- Peak On State Voltage: 1.75V
- Gate Trigger Voltage Max: -
- Operating Temperature Max: 125°C
- Peak Non Repetitive Surge Current: 100A
- Peak Repetitive Off State Voltage: 600V
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 1.1 € |
| Current stock | 100+ |
| Lead time | 30 days |
Datasheet
**==> picture [5 x 6] intentionally omitted <==** **----- Start of picture text -----**<br> ®<br>**----- End of picture text -----**<br> ## **AVS12** ## AUTOMATIC VOLTAGE SWITCH (SMPS < 500W) ## **CONTROLLER** - I 50/60Hz FULL COMPATIBILITY - I INTEGRATED VOLTAGE REGULATOR - I TRIGGERING PULSE TRAIN OF THE TRIAC - I PARASITIC FILTER - I LOW POWER CONSUMPTION ## **TRIAC** - I HIGH EFFICIENCY AND SAFETY SWITCHING - I UNINSULATED PACKAGE : AVS12CB - I VDRM = ± 600 V - I IT(RMS) : 12A **==> picture [220 x 197] intentionally omitted <==** **----- Start of picture text -----**<br> A2<br>G<br>A2<br>A1<br>AVS1ACP08 AVS12CB<br>DIP-8 TO-220AB<br>**----- End of picture text -----**<br> ## **DESCRIPTION** The AVS12 kit is an automatic mains selector (110/220V AC) to be used in SMPS < 500 W. It is composed of 2 devices : - I The **Controller** is optimized for low consumption and high security triggering of the triac. When connected to VSS, the **mode** input activates an additional **option** . If the main power drops from 220V to 110V, the triac control remains locked to the 220V mode and avoids any high voltage spike when the voltage is restored to 220V. When connected to VDD, the mode input desactivates this option. - I The **TRIAC** is specially designed for this application. An optimization between sensitivity and dynamic parameters of the triac gate highly reduces the losses of supply resistor and allows excellent immunity against disturbances. ## **PIN CONNECTION** ||||||||| |---|---|---|---|---|---|---|---| ||||||||| |VSS||1||8|||VM| ||||||||| |Osc / In||2||7|||Mode| ||||||||| |Osc / Out||3||6|||N.C.| ||||||||| ||||||||| |VDD||4||5|||VG| ||||||||| ||||||||| ||||||||| January 2002 - Ed: 3C 1/7 **AVS12** ## **BLOCK DIAGRAM** **==> picture [461 x 215] intentionally omitted <==** **----- Start of picture text -----**<br> AVS1ACP08 MODE<br>AVS12CB<br>Supply Reset<br>A2<br>Mains<br>mode<br>Peak Voltage Parasitic Controller<br>Detector Filter CP Q<br>Zero Crossing<br>Detector S<br>Triggering Q<br>CP Time<br>OSC/IN Controller<br>Oscillator A1<br>OSC/OUT<br>**----- End of picture text -----**<br> ## **ABSOLUTE MAXIMUM RATINGS** CONTROLLER AVS1ACP08 **==> picture [460 x 99] intentionally omitted <==** **----- Start of picture text -----**<br> Value<br>Symbol Parameter Unit<br>Min. Max.<br>VSS Supply voltage -12 0.5 V<br>VI / VO I / O voltage VSS -0.5 0.5 V<br>II / IO I / O current -40 +40 mA<br>Tstg Storage Temperature -60 +150 °C<br>Toper Operating Temperature code ''C'' 0 +70 °C<br>**----- End of picture text -----**<br> ## TRIAC AVS12CB Tj = +25°C (unless otherwise specified) **==> picture [461 x 206] intentionally omitted <==** **----- Start of picture text -----**<br> Symbol Parameter Value Unit<br>VDRM Repetitive peak off-state voltage (2) ± 600 V<br>IT(RMS) RMS on-state current (360° conduction angle) TC = 70°C 12 A<br>ITSM Non repetitive surge peak on-state current ( Tj initial = 25°C ) t = 8.3ms 105 A<br>t = 10ms 100<br>I [2] t I [2] t value t = 10ms 50 A [2] s<br>dI / dt Critical rate of rise of on-state current (1) Repetitive 20 A/µs<br>F = 50Hz<br>Non 100<br>Repetitive<br>dV/dt * Linear slope up to 0.67 VDRM Gate open Tj = 110°C 50 V/µs<br>Tstg Storage Temperature - 40 + 150 °C<br>Tj Junction Temperature Range 0 + 125<br>**----- End of picture text -----**<br> (1) Gate supply : IG = 100mA – di/dt = 1A/µs * For either polarity of electrode A2 voltage with reference to electrode A1 (2) Tj = 110°C 2/7 **AVS12** **THERMAL RESISTANCE** TRIAC AVS12CB **==> picture [461 x 56] intentionally omitted <==** **----- Start of picture text -----**<br> Symbol Parameter Value Unit<br>Rth (j-a) Junction to ambient 60 °C/W<br>Rth (j-c) DC Junction to case for DC 3 °C/W<br>Rth (j-c) AC Junction to case for 360° conduction angle (F = 50Hz) 2.3 °C/W<br>**----- End of picture text -----**<br> **DC GENERAL ELECTRICAL CHARACTERISTICS** TRIAC AVS12CB **==> picture [461 x 113] intentionally omitted <==** **----- Start of picture text -----**<br> Value<br>Symbol Parameter Unit<br>Min. Max.<br>VGD VD = VDRM RL = 3.3kΩ Pulse duration > 20µs Tj = 110°C 0.2 V<br>VTM * ITM = 17A tp = 10ms Tj = 25°C 1.75 V<br>IDRM * VDRM rated Gate open Tj = 25°C 10 µA<br>Tj = 110°C 500<br>**----- End of picture text -----**<br> * For either polarity of electrode A2 voltage with reference to electrode A1 **Fig. 1:** Maximum RMS power dissipation versus RMS on-state current (F = 60Hz). (Curves are cut off by (dI/dt)c limitation) **Fig. 2:** Correlation between maximum mean power dissipation and maximum allowable temperature (Tamb and Tcase) for different thermal resistances heatsink + contact. **==> picture [180 x 151] intentionally omitted <==** **==> picture [187 x 151] intentionally omitted <==** 3/7 **AVS12** **Fig. 3** : Non repetitive surge peak on-state current for a sinusoidal pulse with width: t≤10ms, and corresponding value of I[2] t. **Fig. 4:** On-state characteristics (maximum values). **==> picture [188 x 71] intentionally omitted <==** **==> picture [193 x 152] intentionally omitted <==** **DC GENERAL ELECTRICAL CHARACTERISTICS** (continued) CONTROLLER AVS1ACP08 Toper = 25°C (unless otherwise specified) **==> picture [461 x 302] intentionally omitted <==** **----- Start of picture text -----**<br> Value<br>Symbol Parameter Unit<br>Min. Typ. Max.<br>VSS (pin 1) (Vreg) Shunt regulator -10 -9 -8 V<br>ISS (pin 1) (Vreg) Supply current 0.4 30 mA<br>(@ VSS = 9V)<br>ISS (pin 1) Quiescent current 0.7 mA<br>(@ triac gate non<br>connected)<br>F (pin 3) Oscillator frequency 42 44 46 KHz<br>(@ R = 91kΩ)<br>(C = 100pF)<br>VM (pin 8) Vth (3) Peak voltage of detection high-threshold 4.08 4.25 4.42 V<br>VM (pin 8) Vh (3) Peak voltage of detection hysteresis 0.370 0.4 0.420 V<br>(1) VM (pin 8) Vth (3) Zero-crossing detection high-threshold 95 110 125 mV<br>VM (pin 8) Vh (3) Zero-crossing detection hysteresis 27 50 80 mV<br>(2) Vrazht (4) Power-on-reset activation threshold Vreg x 0.89 V<br>(2) Vrazlt (4) Power-down-reset activation threshold 3 6.5 V<br>Mode (pin 7) VIL (4) 0.3 Vreg V<br>VIH (4) 0.7 Vreg<br>**----- End of picture text -----**<br> ## **NOTE:** - (1) : This value gives a typical noise immunity on the zero-crossing detectionof 110mV x 1018/18 = 6.20V on the main supply - (2) : See following diagram - (3) : Voltage referred to VSS - (4) : Voltage referred to VDD 4/7 **AVS12** ## **POWER-ON AND POWER-OFF RESET BEHAVIOUR** **==> picture [461 x 200] intentionally omitted <==** **----- Start of picture text -----**<br> Undetermined Power-on reset Normal operation Power-off reset Undetermined<br>0V 0V<br>-2.7V -2.7V<br>Vrazlt<br>Vrazht<br>Vreg = VSS - VDD<br>**----- End of picture text -----**<br> ## **TYPICAL APPLICATION** **==> picture [461 x 284] intentionally omitted <==** **----- Start of picture text -----**<br> 110 V<br>or NTC<br>220V<br>NTC<br>AVS12CB<br>option VDD<br>R1<br>1 N<br>1MΩ<br>4007 1 % VSS A 2<br>VM 7 390Ω<br>8 5 A 1<br>2 VG G<br>x R2 AVS1ACP08<br>9.1KΩ 18KΩ<br>1W 1 % 3 2 1 4 VDD<br>91kΩ 1 % VSS 33µF<br>16V<br>100pF 5 %<br>AVS12<br>**----- End of picture text -----**<br> 5/7 **AVS12** ## **ORDERING INFORMATION** **==> picture [45 x 12] intentionally omitted <==** **----- Start of picture text -----**<br> AVS12<br>**----- End of picture text -----**<br> **==> picture [425 x 198] intentionally omitted <==** **----- Start of picture text -----**<br> CONTROLLER TRIAC<br>AVS 1A C P08 AVS 12 C B<br>AUTOMATIC AUTOMATIC<br>PACKAGE:<br>VOLTAGE VOLTAGE<br>DIP-8<br>SWITCH SWITCH<br>PACKAGE B:<br>IDENTIFICATION TO-220AB<br>IDENTIFICATION<br>OPERATING OPERATING<br>TEMPERATURE TEMPERATURE<br>C = 0/70°C C = 0/70°C<br>**----- End of picture text -----**<br> **PACKAGE MECHANICAL DATA** DIP-8 Plastic (controller) **==> picture [208 x 170] intentionally omitted <==** **----- Start of picture text -----**<br> I<br>a1 b1<br>L<br>B B1 F<br>b e<br>Z<br>e3 E<br>D<br>8 5<br>1 4<br>**----- End of picture text -----**<br> **==> picture [217 x 285] intentionally omitted <==** **----- Start of picture text -----**<br> DIMENSIONS<br>REF. Millimetres Inches<br>Min. Typ. Max. Min. Typ. Max.<br>a1 0.70 0.027<br>B 1.39 1.65 0.055 0.065<br>B1 0.91 1.04 0.036 0.041<br>b 0.5 0.020<br>b1 0.38 0.50 0.015 0.020<br>D 9.80 0.385<br>E 8.8 0.346<br>e 2.54 0.100<br>e3 7.62 0.300<br>F 7.1 0.280<br>I 4.8 0.189<br>L 3.3 0.130<br>Z 0.44 1.60 0.017 0.063<br>**----- End of picture text -----**<br> 6/7 **AVS12** ## **PACKAGE MECHANICAL DATA** TO-220AB (Plastic) (Triac) **==> picture [445 x 311] intentionally omitted <==** **----- Start of picture text -----**<br> DIMENSIONS<br>REF. Millimeters Inches<br>B C Min. Typ. Max. Min. Typ. Max.<br>b2 A 15.20 15.90 0.598 0.625<br>a1 3.75 0.147<br>L<br>a2 13.00 14.00 0.511 0.551<br>F<br>I B 10.00 10.40 0.393 0.409<br>A b1 0.61 0.88 0.024 0.034<br>b2 1.23 1.32 0.048 0.051<br>l4 C 4.40 4.60 0.173 0.181<br>c1 0.49 0.70 0.019 0.027<br>a1 c2 c2 2.40 2.72 0.094 0.107<br>e 2.40 2.70 0.094 0.106<br>l3<br>l2 a2 F 6.20 6.60 0.244 0.259<br>I 3.75 3.85 0.147 0.151<br>I4 15.80 16.40 16.80 0.622 0.646 0.661<br>L 2.65 2.95 0.104 0.116<br>b1 M<br>c1 l2 1.14 1.70 0.044 0.066<br>e<br>l3 1.14 1.70 0.044 0.066<br>M 2.60 0.102<br>**----- End of picture text -----**<br> - I Cooling method: C - I Recommended torque value: 0.8 m.N - I Maximum torque value: 1 m.N ## **OTHER INFORMATION** **==> picture [460 x 58] intentionally omitted <==** **----- Start of picture text -----**<br> Part Number Marking Weight Base Qty Packing mode<br>AVS12CB AVS12CB 2.3 g 1000 Tube<br>AVS1ACP08 AVS1ACP08 0.6 g 2000 Tube<br>**----- End of picture text -----**<br> Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics - © 2002 STMicroelectronics - Printed in Italy - All rights reserved. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore Spain - Sweden - Switzerland - United Kingdom - United States. **http://www.st.com** 7/7
Updated at June 10, 2026
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