# Triac, 800 V, 25 A, TO-220AB, 1 V, 200 A, 35 mA

![Product image](https://novapart.co/image/farnell:4036255/)

**URL**: https://novapart.co/products/T2535T-8I/triac-800-v-25-a-to-220ab-1-200-35-ma
**SKU**: T2535T-8I
**Manufacturer**: STMICROELECTRONICS
**Price**: €0.7120
**Stock**: 10+
**Lead Time**: 120 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 3Pins |
| Product Range | T Series |
| Triac Case Style | TO-220AB |
| Thyristor Mounting | Through Hole |
| Holding Current Max | 35mA |
| On State Rms Current | 25A |
| Peak On State Voltage | 1.5V |
| Gate Trigger Voltage Max | 1V |
| Operating Temperature Max | 150°C |
| Peak Non Repetitive Surge Current | 200A |
| Peak Repetitive Off State Voltage | 800V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4036255/)

**T2535T-8I** 

Datasheet 

## 25 A - 800 V - T-series Triac in TO-220AB insulated 

## **Features** 

**==> picture [100 x 169] intentionally omitted <==**

**----- Start of picture text -----**<br>
A2<br>G<br>A1<br>G<br>A2<br>A1<br>**----- End of picture text -----**<br>


TO-220AB insulated 

- 25 A medium current Triac 

- 150 °C maximum junction temperature TJ 

- Surge capability VDSM, VRSM = 900 V 

- Three triggering quadrants 

- High noise immunity - static dV/dt 

- Robust dynamic turn-off commutation - (dI/dt)c 

- ECOPACK2 compliant component 

- Comply with UL1557 insulation: 

   - 2.5 kV - reference file: E81734 

## **Applications** 

- General purpose AC line load control 

- AC induction and universal motor control 

- Heating: water heater, e-bidet 

- Power tools 

- Cooker, oven 

- Lighting and automation I/O control 

- Inrush current limiting circuits 

- Overvoltage crowbar protection 

## **Product status link** 

T2535T-8I 

|**Product summary**|**Product summary**|
|---|---|
|**IT(RMS)**|25 A|
|**VDRM, VRRM**|800 V|
|**VDSM, VRSM**|900 V|
|**IGT**|35 mA|



## **Description** 

The T2535T-8I Triac in TO-220AB package can be used for the on/off or phase angle control function in general purpose AC switching. 

Based on the ST Snubberless technology, it offers higher specified turn-off commutation and noise immunity levels up to 150 °C. 

The T2535T-8I safely optimizes the control of the motors and heaters loads for the most constraining home appliances environments. 

By using an internal ceramic pad, the TO-220AB insulated package provides a UL recognized component isolation, rated at 2500 VRMS. 

**DS13445** - **Rev 1** - **September 2020** For further information contact your local STMicroelectronics sales office. 

www.st.com 

**T2535T-8I Characteristics** 

**1 Characteristics** 

**Table 1. Absolute maximum ratings (limiting values)** 

|**Symbol**|**Parameter**|**Parameter**||**Value**|**Unit**|
|---|---|---|---|---|---|
|IT(RMS)|RMS on-state current (full sine wave)||Tc= 101 °C|25|A|
|ITSM|Non repetitive surge peak on-state current (full cycle, Tjinitial = 25 °C)||t = 16.7 ms|210|A|
||||t = 20 ms|200||
|I2t|I2t value for fusing||tp= 10 ms|264|A2s|
|dl/dt|Critical rate of rise of on-state current, IG= 2 x IGT, tr ≤ 100 ns, f = 100 Hz||f = 120 Hz|100|A/µs|
|VDRM/<br>VRRM|Repetitive peak off-state voltage||Tj= 125 °C|800|V|
||||Tj= 150 °C|600||
|VDSM/<br>VRSM|Non Repetitive peak off-state voltage|tp= 10 ms|Tj= 25 °C|900|V|
|IGM|Peak gate current|tp= 20 µs|Tj= 150 °C|4|A|
|pGM|Maximum gate power dissipation|tp= 20 μs|Tj= 150 °C|5|W|
|PG(AV)|Average gate power dissipation||Tj= 150 °C|1|W|
|Tstg|Storage temperature range|||-40 to +150|°C|
|Tj|Operating junction temperature range|||-40 to +150|°C|
|TL|Maximum lead temperature for soldering during 10 s|||260|°C|
|VINS|Insulation RMS voltage, 1 minute|||2.5|kV|



**Table 2. Electrical characteristics (Tj = 25 °C, unless otherwise specified)** 

|**Symbol**|**Test conditions**|**Quadrants**||**Value**|**Unit**|
|---|---|---|---|---|---|
|IGT|VD= 12 V, RL= 30 Ω|I - II - III|Min.|5|mA|
||||Max.|35||
|VGT|||Max.|1|V|
|VGD|VD= VDRM, RL= 3.3 kΩ, Tj= 150 °C|I - II - III|Min.|0.15|V|
|IL|IG= 1.2 x IGT|I - III|Max.|50|mA|
|||II|Max.|80||
|IH (1)|IT= 500 mA, gate open||Max.|35|mA|
|dV/dt(1)|VD= 536 V, gate open|Tj= 125 °C|Min.|1500|V/µs|
||VD= 402 V, gate open|Tj= 150 °C|Min.|1000|V/µs|
|(dl/dt)c(1)|Without snubber network|Tj= 125 °C|Min.|28|A/ms|
|||Tj= 150 °C|Min.|18|A/ms|



_1. For both polarities of A2 referenced to A1._ 

**DS13445** - **Rev 1** 

**page 2/11** 

**T2535T-8I Characteristics** 

## **Table 3. Static characteristics** 

|**Symbol**|**Test conditions**|||**Value**|**Unit**|
|---|---|---|---|---|---|
|VTM (1)|IT= 35 A, tp= 380 µs|Tj= 25 °C|Max.|1.5|V|
|VTO (1)|Threshold voltage|Tj= 150 °C|Max.|0.80|V|
|RD(1)|Dynamic resistance|Tj= 150 °C|Max.|17|mΩ|
|IDRM/IRRM|VD= VR= 800 V, peak voltage|Tj= 25 °C|Max.|5|µA|
|||Tj= 125°C||5|mA|
||VD= VR= 600 V, peak voltage|Tj= 150 °C|Max.|6|mA|
||VD= VR= 400 V, peak voltage|Tj= 150 °C|Max.|5||



_1. For both polarities of A2 referenced to A1._ 

## **Table 4. Thermal resistance** 

|**Symbol**|**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|
|Rth(j-c)|Junction to case (AC)|Max.|1.7|°C/W|
|Rth(j-a)|Junction to ambient|Typ.|60||



**DS13445** - **Rev 1** 

**page 3/11** 

**T2535T-8I Characteristics (curves)** 

## **1.1 Characteristics (curves)** 

**Figure 1. Maximum power dissipation versus on-state Figure 2. On-state RMS current versus case temperature RMS current (full cycle) (full cycle)** 

**==> picture [226 x 127] intentionally omitted <==**

**----- Start of picture text -----**<br>
P(W)<br>35<br>30<br>25 α = 180°<br>20<br>15<br>10<br>5<br>IT(RMS)(A)<br>0<br>0 5 10 15 20 25<br>**----- End of picture text -----**<br>


**==> picture [220 x 127] intentionally omitted <==**

**----- Start of picture text -----**<br>
IT(RMS)(A)<br>30<br>25<br>20 α = 180°<br>15<br>10<br>5<br>T c(°C)<br>0<br>0 25 50 75 100 125 150<br>**----- End of picture text -----**<br>


**==> picture [513 x 206] intentionally omitted <==**

**----- Start of picture text -----**<br>
Figure 3. On-state RMS current versus ambient<br>Figure 4. On-state characteristics (maximum)<br>temperature (free air convection)<br>ITM (A)<br>I T(RMS) (A) 1000<br>3.5<br>3 Tj max.<br>α = 180 ° VTO= 0.8 V<br>2.5 100 R D = 17 mΩ<br>2<br>Tj = 150 °C<br>1.5<br>10<br>1 Tj = 25 °C<br>0.5 VTM (V)<br>T a(°C) 1<br>0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5<br>0 25 50 75 100 125 150<br>**----- End of picture text -----**<br>


**DS13445** - **Rev 1** 

**page 4/11** 

**T2535T-8I Characteristics (curves)** 

**Figure 5. Relative variation of IGT,IH, IL vs junction Figure 6. Relative variation of critical rate of decrease of temperature (typical values) main current versus junction temperature** 

**==> picture [476 x 145] intentionally omitted <==**

**----- Start of picture text -----**<br>
IGT, IH, IL [T j] / IGT, IH, IL [Tj = 25 ° C] (dI/dt)c [T j] / (dI/dt) c [T j = 150°C]<br>2.5 8<br>7<br>2.0 IGT<br>6<br>1.5 5<br>IH & IL 4<br>1.0<br>3<br>2<br>0.5<br>1<br>Tj(°C) Tj(°C)<br>0.0 0<br>-40 -20 0 20 40 60 80 100 120 140 160 25 50 75 100 125 150<br>**----- End of picture text -----**<br>


**Figure 7. Relative variation of critical rate of decrease of Figure 8. Surge peak on-state current versus number of current (dI/dt)c versus reapplied (dV/dt)c cycles** 

**==> picture [478 x 144] intentionally omitted <==**

**----- Start of picture text -----**<br>
2.0 (dI/dt)c [ (dV/dt) c ] / specified (dI/dt)c ITSM(A)<br>typical values 250<br>1.8<br>1.6<br>200<br>1.4<br>1.2 150<br>1.0 Non repetitive<br>0.8 100 Repetitive Tj initial =<br>Tc = 101 °C 25 °C<br>0.6<br>50<br>0.4<br>0.2 Number of cycles<br>(dV/dt) C (V/µs) 0<br>0.0 1 10 100 1000<br>0.1 1.0 10.0 100.0<br>**----- End of picture text -----**<br>


**Figure 9. Non repetitive surge peak on-state current for a Figure 10. Relative variation of thermal impedance versus sinusoidal pulse width tP < 10 ms pulse duration** 

**==> picture [479 x 149] intentionally omitted <==**

**----- Start of picture text -----**<br>
ITSM(A) K=[Zth /Rth]<br>10000 1.0E+00<br>Tj initial=25  ° C<br>dI/dt limitation: 100 A/µs Zth(j-c) Z th(j-a)<br>1.0E-01<br>1000<br>I TSM 1.0E-02<br>t P(s)<br>tP(ms) 1.0E-03<br>100<br>1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03<br>0.01 0.10 1.00 10.00<br>**----- End of picture text -----**<br>


**DS13445** - **Rev 1** 

**page 5/11** 

**T2535T-8I Characteristics (curves)** 

**Figure 11. Leakage current versus junction temperature for different values of blocking voltage (typical values)** 

**==> picture [220 x 142] intentionally omitted <==**

**----- Start of picture text -----**<br>
IDRM/IRRM(µA)<br>1.0E+04<br>DRMVD [=V] =VRRMR [=600] [V]<br>1.0E+03<br>DRMV [=V] D =VRRMR [=400] [V]<br>1.0E+02<br>VDRMV=VD=VRRMR =200 V<br>1.0E+01<br>1.0E+00<br>Tj(°C)<br>1.0E-01<br>50 75 100 125 150<br>**----- End of picture text -----**<br>


**DS13445** - **Rev 1** 

**page 6/11** 

**T2535T-8I Package information** 

**2** 

## **Package information** 

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. 

## **2.1 TO-220AB Ins. package information** 

- Molding compound resin is halogen free and meets UL94 flammability standard, level V0 

- Lead-free plating package leads 

- Recommended torque: 0.4 to 0.6 N·m 

**Figure 12. TO-220AB Insulated package outline** 

**==> picture [279 x 308] intentionally omitted <==**

**DS13445** - **Rev 1** 

**page 7/11** 

**T2535T-8I** 

**TO-220AB Insulated package information** 

**Table 5. TO-220AB Insulated package mechanical data** 

||**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|---|---|
|**Ref.**|**Millimeters**|||**Inches(1)**|||
||**Min.**|**Typ.**|**Max.**|**Min.**|**Typ.**|**Max.**|
|A|15.20||15.90|0.5984||0.6260|
|a1||3.75|||0.1476||
|a2|13.00||14.00|0.5118||0.5512|
|B|10.00||10.40|0.3937||0.4094|
|b1|0.61||0.88|0.0240||0.0346|
|b2|1.23||1.32|0.0484||0.0520|
|C|4.40||4.60|0.1732||0.1811|
|c1|0.49||0.70|0.0193||0.0276|
|c2|2.40||2.72|0.0945||0.1071|
|e|2.40||2.70|0.0945||0.1063|
|F|6.20||6.60|0.2441||0.2598|
|I|3.73||3.88|0.1469||0.1528|
|L|2.65||2.95|0.1043||0.1161|
|I2|1.14||1.70|0.0449||0.0669|
|I3|1.14||1.70|0.0449||0.0669|
|I4|15.80|16.40|16.80|0.6220|0.6457|0.6614|
|M||2.6|||0.1024||



_1. Inch dimensions are for reference only._ 

**DS13445** - **Rev 1** 

**page 8/11** 

**T2535T-8I Ordering information** 

**3** 

## **Ordering information** 

**Figure 13. Ordering information scheme** 

**==> picture [344 x 205] intentionally omitted <==**

**----- Start of picture text -----**<br>
T   25   35   T  -  8   I<br>Triac series<br>RMS current<br>25 = 25 A<br>Gate triggering current<br>35 = 35 mA<br>High temperature<br>T = T series<br>Voltage<br>8 = 800 V<br>Package<br>I =TO-220AB 2.5 kV insulated<br>**----- End of picture text -----**<br>


**Table 6. Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base Qty.**|**Delivery mode**|
|---|---|---|---|---|---|
|T2535T-8I|T2535T-8I|TO-220AB Ins.|2.3 g|50|Tube|



**DS13445** - **Rev 1** 

**page 9/11** 

**T2535T-8I** 

## **Revision history** 

**Table 7. Document revision history** 

|**Date**|**Version**|**Changes**|
|---|---|---|
|23-Sep-2020|1|Initial release.|



**DS13445** - **Rev 1** 

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**T2535T-8I** 

## **IMPORTANT NOTICE – PLEASE READ CAREFULLY** 

STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. 

Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. 

No license, express or implied, to any intellectual property right is granted by ST herein. 

Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. 

ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service names are the property of their respective owners. 

Information in this document supersedes and replaces information previously supplied in any prior versions of this document. 

© 2020 STMicroelectronics – All rights reserved 

**DS13445** - **Rev 1** 

**page 11/11** 



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