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参数资料
| 型号： | MRF448 |
| 厂商： | MOTOROLA INC |
| 元件分类： | 功率晶体管 |
| 英文描述： | RF POWER TRANSISTOR NPN SILICON |
| 中文描述： | 16 A, 50 V, NPN, Si, POWER TRANSISTOR |
| 文件页数： | 2/6页 |
| 文件大小： | 108K |
| 代理商： | MRF448 |
MRF448
2
MOTOROLA RF DEVICE DATA
ELECTRICAL CHARACTERISTICS — continued
(TC = 25
°
C unless otherwise noted.)
Characteristic
Unit
Max
Typ
Min
Symbol
ON CHARACTERISTICS
DC Current Gain
(IC = 5.0 Adc, VCE = 10 Vdc)
hFE
10
30
—
—
DYNAMIC CHARACTERISTICS
Output Capacitance
(VCB = 50 Vdc, IE = 0, f = 1.0 MHz)
Cob
—
350
450
pF
FUNCTIONAL TESTS
Common–Emitter Amplifier Power Gain
(VCC = 50 Vdc, Pout = 250 W CW, f = 30 MHz, ICQ = 250 mA)
GPE
12
14
—
dB
Collector Efficiency
(VCC = 50 Vdc, Pout = 250 W, f = 30 MHz, ICQ = 250 mA)
η
—
—
45
65
—
—
% (PEP)
% (CW)
Intermodulation Distortion (2)
(VCE = 50 Vdc, Pout = 250 W (PEP), ICQ = 250 mA, f = 30 MHz)
IMD
—
–33
–30
dB
Electrical Ruggedness
(VCC = 50 Vdc, Pout = 250 W CW, f = 30 MHz,
VSWR 3:1 at all Phase Angles)
ψ
No Degradation in Output Power
NOTE:
2. To Mil–Std–1311 Version A, Test Method 2204, Two Tone, Reference each Tone.
Figure 1. 30 MHz Test Circuit Schematic
C1, C2, C5, C7 — 170–780 pF, Arco 469
C3, C8, C9 — 0.1
μ
F, 100 V Erie
C4 — 500
μ
F @ 6.0 V
C6 — 360 pF, 3 x 120 pF 3.0 kV in parallel
C10 — 10
μ
F, 100 V
R1 — 10
, 10 Watt
R2 — 10
, 1.0 Watt
CR1 — 1N4997 or equivalent
L1 — 3 Turns, #16 Wire, 0.4
″
I.D., 0.3
″
Long
L2 — 0.8
μ
H, Ohmite Z–235 or equivalent
L3 — 12 Turns, #16 Enameled Wire Closewound 0.25
″
I.D.
L4 — 4 Turns, 1/8
″
Copper Tubing, 0.6
″
I.D., 1.0
″
Long
L5, L6 — 2.0
μ
H, Fair–Rite 2643021801 Ferrite bead each or equivalent
BIAS
+
RF
INPUT
RF
OUTPUT
50 Vdc
+
–
R1
C3
C4
+
–
CR1
C1
C2
L1
R2
L2
D.U.T.
L3
C5
L4
C8
C9
C10
+
–
L5
L6
C6
C7
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| MRF453 | RF POWER TRANSISTORS |
| MRF453A | RF POWER TRANSISTORS |
| MRF454 | RF POWER TRANSISTOR NPN SILICON |
| MRF455 | RF POWER TRANSISTOR NPN SILICON |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MRF448MP | 制造商:M/A-COM Technology Solutions 功能描述:RF POWER TRANSISTOR BIPOLAR/HBT |
| MRF449 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:RF POWER TRANSISTORS |
| MRF449A | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:RF POWER TRANSISTORS |
| MRF450 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:THE RF LINE |
| MRF450A | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:THE RF LINE |
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