# Bipolar Pre-Biased / Digital Transistor, Single NPN, 50 V, 500 mA, 2.2 kohm, 10 kohm
**URL**: https://novapart.co/products/DTD123YKT146/bipolar-pre-biased-digital-transistor-single-npn
**SKU**: DTD123YKT146
**Manufacturer**: ROHM
**Category**: Semiconductors - Discretes || Transistors || Bipolar Transistors || Pre-Biased / Digital Bipolar Transistors
**Price**: €0.0820
**Stock**: 10+
**Lead Time**: 127 days (indicative)
## Description
Digital Transistor Polarity:Single NPN; Collector Emitter Voltage V(br)ceo:50V; Continuous Collector Current Ic:500mA; Base Input Resistor R1:2.2kohm; Base-Emitter Resistor R2:10kohm;
## Specifications
| Parameter | Value |
|---|---|
| Msl | MSL 1 - Unlimited |
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 3 Pin |
| Product Range | DTD123Y Series |
| Qualification | - |
| Power Dissipation | 200mW |
| Transistor Mounting | Surface Mount |
| Transistor Polarity | Single NPN |
| Transistor Case Style | SOT-346 |
| Base Input Resistor R1 | 2.2kohm |
| Dc Current Gain Hfe Min | 56hFE |
| Base Emitter Resistor R2 | 10kohm |
| Operating Temperature Max | 150°C |
| Continuous Collector Current | 500mA |
| Collector Emitter Voltage Max Npn | 50V |
| Collector Emitter Voltage Max Pnp | - |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:1680300/)
Datasheet
**NPN 500mA 50V Digital Transistors (Bias Resistor Built-in Transistors)**
## DTD123YK
**==> picture [47 x 10] intentionally omitted <==**
**----- Start of picture text -----**
l Outline
**----- End of picture text -----**
|Parameter|Value|
|---|---|
|VCC|50V|
|IC(MAX.)|500mA|
|R1|2.2kW|
|R2|10kW|
**==> picture [97 x 91] intentionally omitted <==**
**----- Start of picture text -----**
SMT3
OUT
IN
GND
DTD123YK
SOT-346 (SC-59)
**----- End of picture text -----**
## 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
size
(mm)|Taping
code|Reel size
(mm)|Tape width
(mm)|Basic
ordering
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
*1|500|mA|
|Power dissipation|PD
*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,
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)
**==> picture [243 x 560] intentionally omitted <==**
**----- Start of picture text -----**
Fig.1 Input voltage vs. output current
(ON characteristics)
OUTPUT CURRENT : IO [mA]
Fig.3 Output current vs. output voltage
500 II= 5.0mA 4.5mA 4.0mA
3.5mA
400 3.0mA
2.5mA
300
2.0mA
1.5mA
200
1.0mA
100
0.5mA
Ta=25ºC
0 0A
0 5 10
OUTPUT VOLTAGE : VO [V]
[V]
I(on)
INPUT VOLTAGE : V
[mA]
O
OUTPUT CURRENT : I
**----- End of picture text -----**
Fig.2 Output current vs. input voltage (OFF characteristics)
**==> picture [224 x 511] intentionally omitted <==**
**----- Start of picture text -----**
INPUT VOLTAGE : VI(off)[V]
Fig.4 DC current gain vs. output current
[A]
O
OUTPUT CURRENT : I
DC CURRENT GAIN : GI
**----- End of picture text -----**
**==> picture [136 x 11] intentionally omitted <==**
**----- Start of picture text -----**
OUTPUT CURRENT : IO [mA]
**----- End of picture text -----**
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
**==> picture [226 x 220] intentionally omitted <==**
**----- Start of picture text -----**
OUTPUT CURRENT : IO [mA]
[V]
O(on)
OUTPUT VOLTAGE : V
**----- End of picture text -----**
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved.
**2012.07 - Rev.D**
4/5
Data Sheet
**DTD123YK**
## l **Dimensions** (Unit : mm)
**==> picture [392 x 296] intentionally omitted <==**
**----- Start of picture text -----**
D
SMT3 A
c
Q
A3
e b
x S A
e
S
b2
E
E H
L1 Lp
e1
A
l1
A1
**----- End of picture text -----**
## **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
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved.
**2012.07 - Rev.D**
5/5
Notice
## **N o t e s**
No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information.
The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law.
**==> picture [80 x 61] intentionally omitted <==**
Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us.
## ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved.
R1120A
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