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PDTA124X series
PNP resistor-equipped transistors; R1 = 22 k, R2 = 47 k
Rev. 08 -- 3 September 2009 Product data sheet

1. Product profile

1.1 General description
PNP Resistor-Equipped Transistors (RET) family.

Table 1. Product overview
Type number Package NPN complement
NXP JEITA JEDEC
PDTA124XE SOT416 SC-75 - PDTC124XE
PDTA124XEF SOT490 SC-89 - PDTC124XEF
PDTA124XK SOT346 SC-59A TO-236 PDTC124XK
PDTA124XM SOT883 SC-101 - PDTC124XM
PDTA124XS[1] SOT54 SC-43A TO-92 PDTC124XS
PDTA124XT SOT23 - TO-236AB PDTC124XT
PDTA124XU SOT323 SC-70 - PDTC124XU

[1] Also available in SOT54A and SOT54 variant packages (see Section 2)

1.2 Features
I Built-in bias resistors I Reduces component count
I Simplifies circuit design I Reduces pick and place costs
I 100 mA output current capability

1.3 Applications
I Digital applications I Cost-saving alternative for BC857 series
in digital applications
I Controlling IC inputs I Switching loads

1.4 Quick reference data
Table 2. Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
VCEO collector-emitter voltage open base - - -50 V
IO output current (DC) - - -100 mA
R1 bias resistor 1 (input) 15.4 22 28.6 k
R2/R1 bias resistor ratio 1.7 2.1 2.6
NXP Semiconductors PDTA124X series
PNP resistor-equipped transistors; R1 = 22 k, R2 = 47 k

2. Pinning information
Table 3. Pinning
Pin Description Simplified outline Symbol
SOT54
1 input (base)
2 output (collector) 2
R1
3 GND (emitter) 1 1
2
3 R2
001aab347 3

006aaa148

SOT54A
1 input (base)
2 output (collector) 2
R1
3 GND (emitter) 1 1
2
R2
3
001aab348 3

006aaa148

SOT54 variant
1 input (base)
2 output (collector) 2
R1
3 GND (emitter) 1 1
2
3 R2
001aab447 3

006aaa148

SOT23; SOT323; SOT346; SOT416; SOT490
1 input (base)
3 3
2 GND (emitter)
R1
3 output (collector) 1

R2

1 2 2
006aaa144
sym003

SOT883
1 input (base)
1 3
2 GND (emitter)
3 R1
3 output (collector) 2 1
Transparent
R2
top view
2
sym003

PDTA124X_SER_8