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PEMD48; PUMD48
NPN/PNP resistor-equipped transistors;
R1 = 47 k, R2 = 47 k and R1 = 2.2 k, R2 = 47 k
Rev. 05 -- 13 April 2010 Product data sheet
1. Product profile
1.1 General description
NPN/PNP double Resistor-Equipped Transistors (RET) in small Surface-Mounted
Device (SMD) plastic packages.
Table 1. Product overview
Type number Package Package
NXP JEITA configuration
PEMD48 SOT666 - ultra small and flat lead
PUMD48 SOT363 SC-88 very small
1.2 Features and benefits
Built-in bias resistors Reduces component count
Simplifies circuit design Reduces pick and place costs
1.3 Applications
Low current peripheral driver
Replacement of general-purpose transistors in digital applications
Control IC inputs
1.4 Quick reference data
Table 2. Quick reference data
Symbol Parameter Conditions Min Typ Max Unit
Per transistor; for the PNP transistor with negative polarity
VCEO collector-emitter voltage open base - - 50 V
IO output current - - 100 mA
Transistor TR1 (NPN)
R1 bias resistor 1 (input) 33 47 61 k
R2/R1 bias resistor ratio 0.8 1 1.2
Transistor TR2 (PNP)
R1 bias resistor 1 (input) 1.54 2.2 2.86 k
R2/R1 bias resistor ratio 17 21 26
NXP Semiconductors PEMD48; PUMD48
NPN/PNP resistor-equipped transistors
2. Pinning information
Table 3. Pinning
Pin Description Simplified outline Graphic symbol
PEMD48 (SOT666)
1 GND (emitter) TR1
6 5 4 6 5 4
2 input (base) TR1
3 output (collector) TR2
R1 R2
4 GND (emitter) TR2
TR2
5 input (base) TR2 TR1
1 2 3
6 output (collector) TR1 R2 R1
1 2 3
006aaa143
PUMD48 (SOT363)
1 GND (emitter) TR1
6 5 4 6 5 4
2 input (base) TR1
3 output (collector) TR2
R1 R2
4 GND (emitter) TR2
1 2 3 TR2
5 input (base) TR2 TR1
6 output (collector) TR1 R2 R1
1 2 3
006aaa143
3. Ordering information
Table 4. Ordering information
Type number Package
Name Description Version
PEMD48 - plastic surface-mounted package; 6 leads SOT666
PUMD48 SC-88 plastic surface-mounted package; 6 leads SOT363
4. Marking
Table 5. Marking codes
Type number Marking code[1]
PEMD48 48
PUMD48 4*8
[1] * = -: made in Hong Kong
* = p: made in Hong Kong
* = t: made in Malaysia
* = W: made in China
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