Datasheet

BFT25A All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
Product data sheet Rev. 5 — 12 September 2011 10 of 15
NXP Semiconductors
BFT25A
NPN 5 GHz wideband transistor
V
CE
=1 V; I
C
=1 mA.
Fig 16. Common emitter reverse transmission coefficient (S
12
).
V
CE
=1 V; I
C
=1 mA.
Z
o
= 50 .
Fig 17. Common emitter output reflection coefficient (S
22
).
mcd114
90°
−90°
−45°−135°
45°135°
0°
0
180°
0.5 0.4 0.3 0.2 0.1
3 GHz
40 MHz
mcd113
0.2
0.5
1
2
5
0.2
0.5
1
2
5
10
10
0
5
0.50.2 2
1
10
+ j
− j
∞
3 GHz
40 MHz