DISCRETE SEMICONDUCTORS
DATA SHEET
LTE42005S
NPN microwave power transistor
Product specification
Supersedes data of June 1992
1997 Feb 21
Philips Semiconductors
Product specification
NPN microwave power transistor
FEATURES
•
Diffused emitter ballasting resistors provide excellent
current sharing and withstanding a high VSWR
•
Gold metallization realizes very stable characteristics
and excellent lifetime
•
Input matching cell improves input impedance and
allows an easier design of circuits
APPLICATION
•
Common emitter class-A linear power amplifiers up
to 4.2 GHz.
DESCRIPTION
NPN silicon planar epitaxial microwave power transistor in
a SOT440A metal ceramic flange package with the emitter
connected to the flange.
2
Top view
columns
LTE42005S
PINNING - SOT440A
PIN
1
2
3
collector
base
emitter connected to flange
DESCRIPTION
1
c
b
3
MAM131
e
Marking code:
502
Fig.1 Simplified outline and symbol.
QUICK REFERENCE DATA
Microwave performance up to T
mb
= 25
°C
in a common emitter class-A amplifier.
MODE OF OPERATION
Class-A (CW) linear
f
(GHz)
4.2
V
CE
(V)
18
I
C
(mA)
110
WARNING
Product and environmental safety - toxic materials
This product contains beryllium oxide. The product is entirely safe provided that the BeO slab is not damaged.
All persons who handle, use or dispose of this product should be aware of its nature and of the necessary safety
precautions. After use, dispose of as chemical or special waste according to the regulations applying at the location of
the user. It must never be thrown out with the general or domestic waste.
P
L1
(mW)
≥450
G
po
(dB)
≥6.6
Z
i
(Ω)
100 + j40
Z
L
(Ω)
4 + j4
1997 Feb 21
2
Philips Semiconductors
Product specification
NPN microwave power transistor
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
V
CBO
V
CER
V
CEO
V
EBO
I
C
P
tot
T
stg
T
j
T
sld
PARAMETER
collector-base voltage
collector-emitter voltage
collector-emitter voltage
emitter-base voltage
collector current (DC)
total power dissipation
storage temperature
operating junction temperature
soldering temperature
T
mb
≤
75
°C
CONDITIONS
open emitter
R
BE
= 100
Ω
open base
open collector
−
−
−
−
−
−
−65
−
at 0.3 mm from case; t = 10 s
−
MIN.
LTE42005S
MAX.
40
35
16
3
250
4
+200
200
235
V
V
V
V
UNIT
mA
W
°C
°C
°C
handbook, halfpage
10
3
MBH902
handbook, halfpage
5
MGD966
IC
(mA)
(3)
Ptot
(W)
4
10
2
3
(1)
(2)
2
10
VCEO
1
1
10
15
20
25
30
35
VCE (V)
T
mb
≤
75
°C.
(1) Region of permissible DC operation.
(2) Permissible extension provided R
BE
≤
100
Ω.
(3) Second breakdown limit (independent of temperature).
0
−50
0
50
100
150
200
Tmb (°C)
Fig.3
Fig.2 DC SOAR.
Power dissipation derating as a function of
mounting-base temperature.
1997 Feb 21
3
Philips Semiconductors
Product specification
NPN microwave power transistor
THERMAL CHARACTERISTICS
SYMBOL
R
th j-mb
R
th mb-h
Note
1. See “Mounting
recommendations in the General part of handbook SC19a”.
CHARACTERISTICS
T
mb
= 25
°C
unless otherwise specified
SYMBOL
I
CBO
I
CER
I
EBO
h
FE
C
cb
C
ce
C
eb
PARAMETER
collector cut-off current
emitter cut-off current
emitter cut-off current
DC current gain
collector-base capacitance
collector-emitter capacitance
emitter-base capacitance
CONDITIONS
V
CB
= 20 V; I
E
= 0
V
CB
= 40 V; I
E
= 0
V
CE
= 35 V; R
BE
= 100
Ω
V
EB
= 1.5 V; I
C
= 0
V
CE
= 5 V; I
C
= 110 mA
V
CB
= 20 V; V
EB
= 1.5 V;
I
E
= I
C
= 0; f = 1 MHz
V
CE
= 20 V; V
EB
= 1.5 V;
I
E
= I
C
= 0; f = 1 MHz
V
CB
= 10 V; V
EB
= 1 V;
I
C
= I
E
= 0; f = 1 MHz
−
−
−
−
15
−
−
−
MIN.
−
−
−
−
−
0.5
1.5
6.5
TYP.
PARAMETER
thermal resistance from junction to mounting-base
thermal resistance from mounting-base to heatsink
CONDITIONS
T
j
= 75
°C
T
j
= 75
°C;
note 1
LTE42005S
MAX.
36
0.7
UNIT
K/W
K/W
MAX.
0.1
0.25
1
0.2
150
−
−
−
UNIT
µA
mA
mA
µA
pF
pF
pF
1997 Feb 21
4
Philips Semiconductors
Product specification
NPN microwave power transistor
Table 1
LTE42005S
Scattering parameters: V
CE
= 18 V; I
C
= 110 mA (V
CE
and I
C
regulated); T
mb
= 25
°C;
Z
o
= 50
Ω;
typical
values. (The figures given between brackets are values in dB).
s
11
MAGNITUDE
(ratio)
0.76
0.75
0.76
0.76
0.76
0.75
0.75
0.74
0.75
0.74
0.73
0.73
0.71
0.70
0.69
0.68
0.67
0.65
0.62
0.57
0.52
0.49
0.45
0.38
0.29
0.24
0.20
0.15
0.12
0.17
0.24
0.31
0.41
0.48
0.53
0.56
ANGLE
(deg)
−176
180
177
174
171
168
165
163
160
162
157
155
154
151
148
143
138
134
129
122
113
104
99
92
83
69
54
28
−36
−86
−114
−137
−152
−161
−168
−179
s
21
MAGNITUDE
(ratio)
0.022 (−33.2)
0.023 (−32.8)
0.023 (−32.8)
0.024 (−32.5)
0.024 (−32.3)
0.026 (−31.8)
0.028 (−31.0)
0.031 (−30.1)
0.035 (−29.2)
0.037 (−28.5)
0.041 (−27.8)
0.045 (−27.0)
0.047 (−26.5)
0.049 (−26.1)
0.050 (−25.9)
0.051 (−25.9)
0.058 (−24.7)
0.067 (−23.5
0.077 (−22.3)
0.082 (−21.7)
0.086 (−21.3)
0.093 (−20.6)
0.102 (−19.8)
0.113 (−18.9)
0.119 (−18.5)
0.137 (−17.3)
0.165 (−15.7)
0.202 (−13.9)
0.206 (−13.7)
0.195 (−14.2)
0.177 (−15.0)
0.164 (−15.7
0.154 (−16.2)
0.134 (−17.4)
0.122 (−18.2)
0.105 (−19.6)
ANGLE
(deg)
37
37
40
41
42
43
43
43
43
44
46
46
44
43
42
39
36
34
31
25
21
16
13
8
6
2
−5
−20
−38
−52
−65
−73
−83
−90
−97
−104
s
12
MAGNITUDE
(ratio)
8.13 (18.2)
6.95 (16.8)
5.95 (15.5)
5.25 (14.4)
4.69 (13.4)
4.23 (12.5)
3.88 (11.8)
3.61 (11.2)
3.36 (10.5)
3.12 (9.9)
2.95 (9.4)
2.83 (9.0)
2.70 (8.6)
2.56 (8.2)
2.44 (7.7)
2.34 (7.4)
2.16 (6.7)
2.02(6.1)
1.95 (5.8)
1.84 (5.3)
1.78 (5.0)
1.67 (4.5)
1.62 (4.2)
1.52 (3.6)
1.43 (3.1)
1.27 (2.1)
1.08 (0.7)
0.92 (0.8
0.93 (0.6)
0.97 (−0.3)
0.97 (−0.3)
0.93 (−0.6)
0.88 (−1.1)
0.81 (−1.8)
0.77 (−2.3)
0.70 (−3.1)
ANGLE
(deg)
85
78
73
67
62
57
53
49
44
41
37
32
28
23
19
14
4
−2
−12
−21
−32
−42
−52
−64
−76
−88
−98
−100
−102
−110
−122
−133
−145
−156
−167
−178
s
22
MAGNITUDE
(ratio)
0.35
0.34
0.34
0.35
0.35
0.36
0.37
0.39
0.40
0.43
0.43
0.45
0.47
0.48
0.50
0.51
0.55
0.59
0.64
0.68
0.72
0.74
0.80
0.80
0.82
0.80
0.68
0.51
0.52
0.63
0.73
0.79
0.83
0.85
0.87
0.89
ANGLE
(deg)
−62
−66
−71
−75
−79
−83
−87
−90
−95
−98
−101
−104
−107
−110
−114
−116
−124
−129
−134
−138
−143
−150
−157
−163
−170
−179
171
172
−174
−171
−174
−180
174
166
160
154
f
(MHz)
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2200
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
5200
5400
5600
5800
6000
1997 Feb 21
5
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