DTD123YKT146

Datasheet 

**NPN  500mA  50V  Digital Transistors (Bias Resistor Built-in Transistors)** 

## DTD123YK 

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l Outline<br>**----- End of picture text -----**<br>


|Parameter|Value|
|---|---|
|VCC|50V|
|IC(MAX.)|500mA|
|R1|2.2kW|
|R2|10kW|



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 SMT3<br>OUT<br>IN<br>GND<br>DTD123YK<br>SOT-346 (SC-59)<br>**----- End of picture text -----**<br>


## l **Features** 

- 1) Built-In Biasing Resistors 

## l **Inner circuit** 

- 2) Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors (see inner circuit). 

- 3) The bias resistors consist of thin-film resistors with complete isolation to allow negative biasing of the input. They also have the advantage of completely eliminating parasitic effects. 

- 4) Only the on/off conditions need to be set for operation, making the circuit design easy. 

- 5) Complementary PNP Types :DTB123YK 

- 6) Lead Free/RoHS Compliant. 

## l **Application** 

Switching circuit, Inverter circuit, Interface circuit, Driver circuit 

## l **Packaging specifications** 

|Part No.|Package|Package<br>size<br>(mm)|Taping<br>code|Reel size<br>(mm)|Tape width<br>(mm)|Basic<br>ordering<br>unit (pcs)|Marking|
|---|---|---|---|---|---|---|---|
|DTD123YK|SMT3|2928|T146|180|8|3,000|F62|



www.rohm.com © 2012  ROHM Co., Ltd. All rights reserved. 

**2012.07 -  Rev.D** 

1/5 

Data Sheet 

**DTD123YK** 

## l **Absolute maximum ratings** (Ta = 25°C) 

|l**Absolute maximum ratings **(Ta = 25°C)||||
|---|---|---|---|
|Parameter|Symbol|Values|Unit|
|Supply voltage|VCC|50|V|
|Input voltage|VIN|-5 to+12|V|
|Collector current|IC<br>*1|500|mA|
|Power dissipation|PD<br>*2|200|mW|
|Junction temperature|Tj|150|°C|
|Range of storage temperature|Tstg|-55 to+150|°C|



## l **Electrical characteristics** (Ta = 25°C) 

|l**Electrical characteristics**(Ta|= 25°C)||||||
|---|---|---|---|---|---|---|
|Parameter|Symbol|Conditions|Min.|Typ.|Max.|Unit|
|Input voltage|VI(off)|VCC= 5V,  IO= 100mA|-|-|0.3|V|
||VI(on)|VO= 0.3V,  IO= 20mA|2.0|-|-||
|Output voltage|VO(on)|IO/ II= 50mA / 2.5mA|-|0.1|0.3|V|
|Input current|II|VI= 5V|-|-|3.6|mA|
|Output current|IO(off)|VCC= 50V,  VI= 0V|-|-|0.5|mA|
|DC current gain|GI|VO= 5V,  IO= 50mA|56|-|-|-|
|Input resistance|R1|-|1.54|2.2|2.86|kW|
|Resistance ratio|R2/R1|-|3.6|4.5|5.5|-|
|Transition frequency|fT *1|VCE= 10V,  IE=-50mA,<br>f = 100MHz|-|200|-|MHz|



- *1 Characteristics of built-in transistor 

- *2 Each terminal mounted on a reference footprint 

www.rohm.com © 2012  ROHM Co., Ltd. All rights reserved. 

**2012.07 -  Rev.D** 

2/5 

Data Sheet 

**DTD123YK** 

## l **Electrical characteristic curves** (Ta = 25°C) 

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Fig.1 Input voltage vs. output current<br>        (ON characteristics)<br>OUTPUT CURRENT : IO [mA]<br>Fig.3 Output current  vs. output voltage<br>500 II= 5.0mA  4.5mA  4.0mA<br>3.5mA<br>400 3.0mA<br>2.5mA<br>300<br>2.0mA<br>1.5mA<br>200<br>1.0mA<br>100<br>0.5mA<br>Ta=25ºC<br>0 0A<br>0 5 10<br>OUTPUT VOLTAGE : VO [V]<br> [V]<br>I(on)<br>INPUT VOLTAGE : V<br> [mA]<br>O<br>OUTPUT CURRENT : I<br>**----- End of picture text -----**<br>


Fig.2 Output current vs. input voltage (OFF characteristics) 

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INPUT VOLTAGE : VI(off)[V]<br>Fig.4 DC current gain vs. output current<br> [A]<br>O<br>OUTPUT CURRENT : I<br>DC CURRENT GAIN : GI<br>**----- End of picture text -----**<br>


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OUTPUT CURRENT : IO [mA]<br>**----- End of picture text -----**<br>


www.rohm.com © 2012  ROHM Co., Ltd. All rights reserved. 

**2012.07 -  Rev.D** 

3/5 

Data Sheet 

**DTD123YK** 

## l **Electrical characteristic curves** (Ta = 25°C) 

Fig.5 Output voltage vs. output current 

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OUTPUT CURRENT : IO [mA]<br> [V]<br>O(on)<br>OUTPUT VOLTAGE : V<br>**----- End of picture text -----**<br>


www.rohm.com © 2012  ROHM Co., Ltd. All rights reserved. 

**2012.07 -  Rev.D** 

4/5 

Data Sheet 

**DTD123YK** 

## l **Dimensions** (Unit : mm) 

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D<br>SMT3  A<br>c<br>Q<br>A3<br>e b<br>x S A<br>e<br>S<br>b2<br>E<br>E H<br>L1 Lp<br>e1<br>A<br>l1<br>A1<br>**----- End of picture text -----**<br>


## **Patterm of terminal position areas** 

|DIM|MILIMETERS|MILIMETERS|INCHES|INCHES|
|---|---|---|---|---|
||MIN|MAX|MIN|MAX|
|A|1.00|1.30|-|0.051|
|A1|0.00|0.10|0|0.004|
|A3|0.25||0.01||
|b|0.35|0.50|0.014|0.02|
|c|0.09|0.25|0.004|0.01|
|D|2.80|3.00|0.11|0.118|
|E|1.50|1.80|0.059|0.071|
|e|0.95||0.04||
|HE|2.60|3.00|0.102|0.118|
|L1|0.30|0.60|0.012|0.024|
|Lp|0.40|0.70|0.016|0.028|
|Q|0.20|0.30|0.008|0.012|
|x|-|0.10|-|0.004|
|y|-|0.10|-|0.004|
||||||
|DIM|MILIMETERS||INCHES||
||MIN|MAX|MIN|MAX|
|e1|2.10||0.08||
|b2||0.60|-|0.024|
|l1|-|0.90|-|0.035|



Dimension in mm/inches 

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**2012.07 -  Rev.D** 

5/5 

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