DTB123YU
-500mA/-50V Digital transistor (with built-in resistors) Datasheet
llOutline
Parameter Value SOT-323  
VCC -50V SC-70
  
IC-500mA   
R12.2kΩ    
R210kΩ (UMT3)  
           
llFeatures ll Inner circuit
1)Built-in bias resistors enable the configuration
  of an inverter circuit without connecting
  external input resistors.(see equivalent circuit)
2)The bias resistors consist of thin-film resistors
  with complete isolation to allow positive
  biasing of the input. They also have the advantage
  of almost completely eliminating parasitic effects.
3)Only the on/off conditions need to be set for
  operation, making the device desigh easy.
llApplication
INVERTER, INTERFACE, DRIVER
llPackaging specifications                       
Part No. Package Package
size
Taping
code
Reel size
(mm)
Tape width
(mm)
Basic
ordering
unit.(pcs)
Marking
DTB123YU SOT-323
(UMT3) 2021 T106 180 8 3000 F52
                                              
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© 2015 ROHM Co., Ltd. All rights reserved. 1/5 20150911 - Rev.002
DTB123YU            Datasheet
llAbsolute maximum ratings (Ta = 25°C)
Parameter Symbol Values Unit
Supply voltage VCC -50 V
Input voltage VIN -12 to 5 V
Collector current IC*1 -500 mA
Power dissipation PD*2 200 mW/Total
Junction temperature Tj150
Range of storage temperature Tstg -55 to +150
llElectrical characteristics (Ta = 25°C)
Parameter Symbol Conditions
Values
Unit
Min. Typ. Max.
Input voltage
VI(off) VCC = -5V, IO = -100μA - - -0.3
V
VI(on) VO = -0.3V, IO = -20mA -2.0 - -
Output voltage VO(on) IO = -50mA, II = -2.5mA - -100 -300 mV
Input current II VI = -5V - - -3.0 mA
Output current IO(off) VCC = -50V, VI = 0V - - -500 nA
DC current gain GI*3 VO = -5V, IO = -50mA 56 - - -
Input resistance R1- 1.54 2.2 2.86 kΩ
Resistance ratio R2/R1- 3.6 4.5 5.5 -
Transition frequency fT*1 VCE = -10V, IE = 50mA,
f = 100MHz - 250 - MHz
*1 Characteristics of built-in transistor
*2 Each terminal mounted on a reference land
*3 Pulsed
                                                                                       
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© 2015 ROHM Co., Ltd. All rights reserved. 2/5 20150911 - Rev.002
DTB123YU              Datasheet
llElectrical characteristic curves (Ta =25°C)
Fig.1 Input Voltage vs. Output Current
    (ON Characteristics)
Fig.2 Output Current vs. Input Voltage
    (OFF Characteristics)
Fig.3 Output Current vs. Output Voltage Fig.4 DC Current Gain vs. Output Current
                                               
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© 2015 ROHM Co., Ltd. All rights reserved. 3/5 20150911 - Rev.002
DTB123YU              Datasheet
llElectrical characteristic curves (Ta =25°C)
Fig.5 Output Voltage vs. Output Current
                                               
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© 2015 ROHM Co., Ltd. All rights reserved. 4/5 20150911 - Rev.002
DTB123YU            Datasheet
llDimensions
                                               
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© 2015 ROHM Co., Ltd. All rights reserved. 5/5 20150911 - Rev.002
Datasheet
Datasheet
Notice-PGA-E Rev.001
© 2015 ROHM Co., Ltd. All rights reserved.
Notice
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7. De-rate Power Dissipation (Pd) dependi ng on Ambient temp erature (T a). When used i n sealed area, co nfirm the actual
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Precaution for Mounting / Circuit board design
1. When a highly active halogen ous (chlori ne, bromine, etc.) flu x is used, the residue of flux may negativel y affect product
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Datasheet
Datasheet
Notice-PGA-E Rev.001
© 2015 ROHM Co., Ltd. All rights reserved.
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DatasheetDatasheet
Notice – WE Rev.001
© 2015 ROHM Co., Ltd. All rights reserved.
General Precaution
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Datasheet
Part Number DTB123YU
Package UMT3
Unit Quantity 3000
Minimum Package Quantity 3000
Packing Type Taping
Constitution Materials List inquiry
RoHS Yes
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