# Bipolar (BJT) Single Transistor, General Purpose, PNP, 30 V, 3 A, 1.6 W, SOT-223, Surface Mount

![Product image](https://novapart.co/image/farnell:1297999RL/)

**URL**: https://novapart.co/products/STN790A/bipolar-bjt-single-transistor-general-purpose-pnp
**SKU**: STN790A
**Manufacturer**: STMICROELECTRONICS
**Price**: €0.2380
**Stock**: 500+
**Lead Time**: 113 days (indicative)

## Description

Transistor Polarity:PNP; Collector Emitter Voltage V(br)ceo:30V; Transition Frequency ft:100MHz; Power Dissipation Pd:1.6W; DC Collector Current:-3A; DC Current Gain hFE:200hFE; Transistor Case

## Specifications

| Parameter | Value |
|---|---|
| Msl | MSL 1 - Unlimited |
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 4Pins |
| Product Range | - |
| Qualification | - |
| Power Dissipation | 1.6W |
| Transistor Mounting | Surface Mount |
| Transistor Polarity | PNP |
| Transition Frequency | 100MHz |
| Transistor Case Style | SOT-223 |
| Dc Current Gain Hfe Min | 200hFE |
| Operating Temperature Max | 150°C |
| Continuous Collector Current | 3A |
| Collector Emitter Voltage Max | 30V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1297999RL/)

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## **STN790A** 

## Medium current, high performance, low voltage PNP transistor 

## **Features** 

- Very low collector to emitter saturation voltage 

- DC current gain, hFE >100 

- 3 A continuous collector current 

- 40 V breakdown voltage V(BR)CER 

- SOT-223 plastic package for surface mounting circuits in tape and reel packing 

## **Applications** 

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4<br>3<br>2<br>1<br>SOT-223<br>**----- End of picture text -----**<br>


- Power management in portable equipment 

- Voltage regulation in bias supply circuits 

- Switching regulator in battery charger applications 

- Heavy load driver 

## **Description** 

The device in manufactured in low voltage PNP planar technology by using a “Base Island” layout. The resulting transistor shows exceptional high gain performance coupled with very low saturation voltage. 

## **Figure 1. Internal schematic diagram** 

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**Table 1. Device summary** 

|**Order code**|**Marking**|**Package**|**Packaging**|
|---|---|---|---|
|STN790A|N790A|SOT-223|Tape and reel|



1/9 

June 2008 

Rev 4 

_www.st.com_ 

**STN790A** 

**Electrical ratings** 

## **1 Electrical ratings** 

## **Table 2. Absolute maximum rating** 

|**Table 2.**|**Absolute maximum rating**|||
|---|---|---|---|
|**Symbol**|**Parameter**|**Value**|**Unit**|
|VCBO|Collector-base voltage (IE= 0)|-40|V|
|VCER|Collector-emitter voltage (RBE= 47Ω)|-40|V|
|VCEO|Collector-emitter voltage (IB= 0)|-30|V|
|VEBO|Emitter-base voltage (IC= 0)|-5|V|
|IC|Collector current|-3|A|
|ICM|Collector peak current (tP< 5 ms)|-6|A|
|Ptot|Total dissipation at Tamb= 25 °C|1.6|W|
|Tstg|Storage temperature|-65 to 150|°C|
|TJ|Max. operating junction temperature|150|°C|
|**Table 3.**<br>**Thermal data**||||
|**Symbol**|**Parameter**|**Value**|**Unit**|
|Rthj-amb|Thermal resistance junction-ambient (1)__max|78|°C/W|



1. Device mounted on PCB area of 1 cm[2] . 

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**STN790A** 

**Electrical characteristics** 

## **2 Electrical characteristics** 

(Tcase = 25 °C unless otherwise specified) 

## **Table 4. Electrical characteristics** 

|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|ICBO|Collector cut-off current<br>(IE= 0)|VCB= -30 V<br>VCB= -30 V;     TC= 100 °C|||-10<br>-100|µA<br>µA|
|IEBO|Emitter cut-off current<br>(IC= 0)|VEB= -4 V|||-10|µA|
|V(BR)CEO<br>(1)|Collector-emitter<br>breakdown voltage<br>(IB= 0)|IC= -10 mA|-30|||V|
|V(BR)CER<br>(1)|Collector-emitter<br>breakdown voltage<br>(RBE= 47Ω)|IC= -10 mA|-40|||V|
|V(BR)CBO|Collector-base<br>breakdown voltage<br>(IE= 0)|IC= -100 µA|-40|||V|
|V(BR)EBO|Emitter-base breakdown<br>voltage (IC= 0)|IE= -100 µA|-5|||V|
|VCE(sat)<br>(1)|Collector-emitter<br>saturation voltage|IC= -0.5 A        IB= -5 mA<br>IC= -1.2 A        IB= -20 mA<br>IC= -2 A           IB= -20 mA<br>IC= -3 A           IB= -100 mA<br>IC= -3 A           IB= -100 mA<br>TJ= 100 °C|||-0.15<br>-0.25<br>-0.5<br>-0.7<br>-0.9|V<br>V<br>V<br>V<br>V|
|VBE(sat)<br>(1)|Base-emitter saturation<br>voltage|IC= -1 A            IB= -10 mA||-0.8|-1|V|
|VBE(on)<br>(1)|Base-emitter on voltage|IC= -1 A            VCE= -2 V||-0.8|-1|V|
|hFE<br>(1)|DC current gain|IC= -10 mA       VCE= -2 V<br>IC= -500 mA     VCE= -2 V<br>IC= -1 A             VCE= -2 V<br>IC= -2 A             VCE= -1 V<br>IC= -3 A             VCE= -1 V|100<br>100<br>100<br>100<br>90|200<br>200<br>160<br>130|400<br>400||



3/9 

**STN790A** 

**Electrical characteristics** 

**Table 4. Electrical characteristics (continued)** 

|**Symbol**|**Paramete**|**r**<br>**Test conditions**|**Min.**<br>**Typ.**|**Max.**<br>**Unit**|
|---|---|---|---|---|
|ft|Transition freque|ncy<br>IC= -50 mA       VCE= -5 V<br>f = 50 MHz|100|MHz|
|td<br>tr<br>ts<br>tf|Resistive load<br>Delay time<br>Rise time<br>Storage time<br>Fall time|IC= -3 A             VCC= -20 V<br>IB1= -IB2= -60 mA<br>see_Figure 8_|180<br>160<br>250<br>80|220<br>210<br>300<br>100<br>ns<br>ns<br>ns<br>ns|



1. Pulse duration = 300 µs, duty cycle ≤ 1.5% 

## **2.1 Electrical characteristics (curves)** 

## **Figure 2. DC current gain Figure 3. DC current gain** 

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**==> picture [136 x 137] intentionally omitted <==**

**Figure 4. Collector-emitter saturation Figure 5. Base-emitter saturation voltage voltage** 

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**STN790A** 

**Electrical characteristics** 

## **Figure 6. Switching time resistive load Figure 7. Switching time resistive load** 

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## **2.2 Test circuit** 

## **Figure 8. Resistive load switching test circuit** 

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1) Fast electronic switch<br>2) Non-inductive resistor<br>**----- End of picture text -----**<br>


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**STN790A** 

**Package mechanical data** 

## **3 Package mechanical data** 

In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com 

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**STN790A** 

**Package mechanical data** 

||**SOT-223 mechanical data**|**SOT-223 mechanical data**|**SOT-223 mechanical data**|
|---|---|---|---|
|||||
|||||
|**DIM.**|**mm.**|||
||**min.**|**typ**|**max.**|
|A|||1.80|
|A1|0.02||0.1|
|B|0.60|0.70|0.85|
|B1|2.90|3.00|3.15|
|c|0.24|0.26|0.35|
|D|6.30|6.50|6.70|
|e||2.30||
|e1||4.60||
|E|3.30|3.50|3.70|
|H|6.70|7.00|7.30|
|V|||10 o|
|||||



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0046067_L<br>**----- End of picture text -----**<br>


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**STN790A** 

**Revision history** 

## **4 Revision history** 

**Table 5. Document revision history** 

|**Date**|**Revision**|**Changes**|
|---|---|---|
|24-Mar-2006|3|Updated to new template|
|26-Jun-2008|4|Updated SOT-223 mechanical data.|



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**STN790A** 

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