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 9 of 15
NXP Semiconductors
BFT25A
NPN 5 GHz wideband transistor
V
CE
=1 V; I
C
=1 mA.
Z
o
= 50 .
Fig 14. Common emitter input reflection coefficient (S
11
).
V
CE
=1 V; I
C
=1 mA.
Fig 15. Common emitter forward transmission coefficient (S
21
).
mcd111
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
∞
40 MHz
3 GHz
mcd112
90°
−90°
−45°−135°
45°135°
0°
0
180°
5 4 3 2 1
3 GHz
40 MHz