Motorola MMBR4957LT1, MMBR4957LT3 Datasheet
1
MMBR4957LT1, T3MOTOROLA RF DEVICE DATA
The RF Line
#$ !!"
. . . designed for high–gain, low–noise amplifier oscillator and mixer applications. Specifically packaged for thick and thin–film circuits using surface mount
components.
• High Gain — Gpe = 17 dB Typ @ f = 450 MHz
• Low Noise — NF = 3.0 dB Typ @ f = 450 MHz
• Available in tape and reel packaging options by adding suffix:
T1 suffix = 3,000 units per reel
T3 suffix = 10,000 units per reel
MAXIMUM RATINGS
Rating Symbol Value Unit
Collector–Emitter Voltage V
CEO
–30 Vdc
Collector–Base Voltage V
CBO
–30 Vdc
Emitter–Base Voltage V
EBO
–3.0 Vdc
Collector Current — Continuous I
C
–30 mAdc
Maximum Junction Temperature T
Jmax
150 °C
Power Dissipation, T
case
= 75°C*
Derate linearly above T
case
= 75°C @
P
D(max)
0.278
3.70
W
mW/°C
THERMAL CHARACTERISTICS
Characteristic Symbol Max Unit
Storage Temperature T
stg
–55 to +150 °C
Thermal Resistance Junction to Case* R
θJC
270 °C/W
*Package mounted on 99.5% alumina 10 x 8 x 0.6 mm.
DEVICE MARKING
MMBR4957LT1, T3 = 7F
ELECTRICAL CHARACTERISTICS (T
A
= 25°C unless otherwise noted.)
Characteristic
Symbol Min Typ Max Unit
OFF CHARACTERISTICS
Collector–Emitter Breakdown Voltage (IC = –1.0 mAdc, IB = 0) V
(BR)CEO
–30 — — Vdc
Collector–Base Breakdown Voltage (IC = –100 µAdc, IE = 0) V
(BR)CBO
–30 — — Vdc
Emitter–Base Breakdown Voltage (IE = –100 µAdc, IC = 0) V
(BR)EBO
–3.0 — — Vdc
Collector Cutoff Current (VCB = –10 Vdc, IC = 0) I
CBO
— — –0.1 µAdc
ON CHARACTERISTICS
DC Current Gain (IC = –2.0 mAdc, VCE = –10 Vdc) h
FE
20 — 150 —
SMALL–SIGNAL CHARACTERISTICS
Current–Gain — Bandwidth Product
(IE = –2.0 mAdc, VCE = –10 Vdc, f = 100 MHz)
f
T
— 1200 — MHz
Collector–Base Capacitance
(VCB = –10 Vdc, IE = 0, f = 1.0 MHz)
C
cb
— — 0.8 pF
Common–Emitter Amplifier Power Gain
(VCE = –10 Vdc, IC = –2.0 mAdc, f = 450 MHz)
G
pe
— 17 — dB
Noise Figure (IC = –2.0 mAdc, VCE = –10 Vdc, f = 450 MHz) NF — 3.0 — dB
Order this document
by MMBR4957LT1/D
SEMICONDUCTOR TECHNICAL DATA
IC = –30 mA
HIGH–FREQUENCY
TRANSISTOR
PNP SILICON
CASE 318–07, STYLE 6
SOT–23
LOW PROFILE
(TO–236AA/AB)
Motorola, Inc. 1994
REV 6
MMBR4957LT1, T3
2
MOTOROLA RF DEVICE DATA
S
11
S
21
S
12
S
22
V
CE
(Volts)
I
C
(mA)fMHz
|S11| ± φ |S21| ± φ |S12| ± φ |S22| ± φ
–5.0
–5.0 0.1
0.3
0.5
0.7
0.9
1.2
1.5
2.0
2.5
3.0
0.61
0.39
0.30
0.26
0.24
0.24
0.23
0.23
0.25
0.29
–37 –
–83 –
–107–
–125–
–140–
–158–
–172–
156
133
105
9.28
5.56
3.73
2.79
2.26
1.78
1.49
1.17
0.98
0.85
148
112
95
84
76
65
55
43
33
26
0.03
0.07
0.09
0.12
0.14
0.17
0.20
0.24
0.29
0.34
72
62
62
62
61
60
60
60
59
58
0.90
0.69
0.62
0.59
0.58
0.58
0.58
0.56
0.54
0.50
–16
–27
–30
–34
–38
–45
–51
–61
–72
–83
–10 0.1
0.3
0.5
0.7
0.9
1.2
1.5
2.0
2.5
3.0
0.42
0.28
0.25
0.25
0.25
0.26
0.26
0.27
0.30
0.34
–55 –
–108–
–132–
–148–
–162–
–177–
170
142
122
97
11.54
5.81
3.72
2.77
2.23
1.74
1.46
1.14
0.95
0.82
138
104
90
81
73
62
54
41
32
26
0.03
0.06
0.08
0.11
0.13
0.16
0.19
0.24
0.29
0.35
71
66
67
66
66
65
65
65
64
61
0.84
0.64
0.59
0.58
0.57
0.57
0.57
0.56
0.53
0.50
–18
–25
–28
–32
–37
–43
–50
–60
–73
–83
–15 0.1
0.3
0.5
0.7
0.9
1.2
1.5
2.0
2.5
3.0
0.24
0.24
0.27
0.29
0.31
0.32
0.32
0.34
0.36
0.41
–90 –
–136–
–153–
–167–
–178–
168
155
130
111
89
6.83
3.17
2.23
1.75
1.47
1.20
1.03
0.83
0.71
0.64
129
107
96
86
77
65
56
44
36
31
0.02
0.05
0.08
0.10
0.12
0.15
0.18
0.24
0.31
0.37
69
70
69
70
70
70
72
71
68
64
0.80
0.72
0.69
0.66
0.65
0.64
0.63
0.60
0.57
0.51
–12
–19
–26
–32
–38
–46
–53
–65
–78
–90
–5.0 0.1
0.3
0.5
0.7
0.9
1.2
1.5
2.0
2.5
3.0
0.65
0.42
0.31
0.26
0.24
0.23
0.21
0.20
0.21
0.25
–33 –
–73 –
–95 –
–111–
–126–
–144–
–159–
166
141
109
9.36
5.77
3.91
2.94
2.39
1.87
1.58
1.24
1.04
0.90
149
114
98
87
78
67
58
46
35
28
0.03
0.06
0.09
0.11
0.14
0.17
0.19
0.23
0.27
0.32
74
64
63
63
62
60
60
60
59
59
0.92
0.72
0.65
0.62
0.61
0.60
0.60
0.58
0.56
0.52
–14
–25
–29
–32
–37
–43
–49
–58
–69
–79
–10 0.1
0.3
0.5
0.7
0.9
1.2
1.5
2.0
2.5
3.0
0.49
0.30
0.25
0.23
0.22
0.23
0.23
0.23
0.25
0.30
–46 –
–91 –
–114–
–132–
–147–
–164–
–178–
150
128
101
12.33
6.45
4.19
3.10
2.50
1.96
1.63
1.27
1.06
0.92
141
107
93
83
75
65
57
44
35
27
0.03
0.06
0.08
0.11
0.13
0.16
0.18
0.23
0.28
0.33
71
67
67
66
65
64
65
65
64
62
0.87
0.66
0.61
0.59
0.58
0.58
0.58
0.57
0.55
0.51
–17
–24
–27
–31
–35
–41
–47
–57
–67
–78
–15 0.1
0.3
0.5
0.7
0.9
1.2
1.5
2.0
2.5
3.0
0.38
0.25
0.23
0.23
0.24
0.26
0.26
0.27
0.29
0.34
–57 –
–107–
–130–
–147–
–161–
–177–
170
141
120
96
12.51
5.97
3.84
2.84
2.29
1.80
1.50
1.17
0.97
0.84
135
103
90
81
74
64
55
43
34
27
0.02
0.05
0.08
0.10
0.12
0.15
0.18
0.23
0.28
0.34
71
69
69
68
67
68
68
69
67
64
0.84
0.66
0.63
0.61
0.61
0.60
0.61
0.59
0.57
0.53
–17
–21
–25
–29
–34
–41
–47
–57
–68
–79
Table 1. Common Emitter S–Parameters
–10
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