com
Composite
Transistors
XN0121E (XN121E)
Silicon
NPN epitaxial planar type
Unit: mm
For switching/digital circuits ■ Features
• Two elements incorporated into one package (Emitter-coupled
transistors with built-in resistor) • Reduction of the mounting area and assembly cost by one half
3
2.
90+0.
20 –0.
05 1.
9±0.
1 (0.
95) (0.
95) 4 5
0.
16+0.
10 –0.
06
1.
50+0.
25 –0.
05
2.
8+0.
2 –0.
3
2 0.
30+0.
10 –0.
05 10˚
1
■ Basic Part Number
• UNR221E (UN221E) × 2
1.
1+0.
2 –0.
1
(0.
65)
Parameter Collector-base voltage (Emitter open) Collector-emitter voltage (Base open) Collector current Total power dissipation Junction temperature Storage temperature
Symbol VCBO VCEO IC PT Tj Tstg
Rati...