參數(shù)資料
型號(hào): MRF857S
廠商: MOTOROLA INC
元件分類: 功率晶體管
英文描述: 14 pin DIP, 5.0 Volt, HCMOS/TTL, Clock Oscillator
中文描述: UHF BAND, Si, NPN, RF POWER TRANSISTOR
封裝: CASE 305D-01, 4 PIN
文件頁(yè)數(shù): 4/6頁(yè)
文件大小: 181K
代理商: MRF857S
MRF857S
4
MOTOROLA RF DEVICE DATA
15
14.5
14
830
910
f, FREQUENCY (MHz)
Figure 2. Performance of MRF857S in
Broadband Circuit
TYPICAL CHARACTERISTICS
13.5
13
12.5
12
840
850
860
870
880
890
900
Gpe
4
3.5
3
2.5
2
1.5
1
VSWR
VCC = 24 Vdc
IC = 300 mA
Pout = 2.1 W (CW)
4
3.5
3
0
Pin, INPUT POWER (WATTS)
Figure 3. MRF857S Output Power & Power Gain
versus Input Power
2.5
2
1.5
0
0.05
0.1
0.15
0.2
Gpe
16
15
14
13
12
11
8
Pout
VCC = 24 Vdc
IC = 300 mA
f = 870 MHz
1
0.5
0.25
0.3
0.35
0.4
10
9
1500
0
VCE (Vdc)
Figure 4. MRF857S DC SOA
0
Tj = 150 C
Tf = 50 C
1000
500
850
0
VCE (Vdc)
Figure 5. MRF857S DC SOA
(This device is MTBF limited for VCE 20 Vdc.)
50
0
Tj = 175 C
Tf = 50 C
800
750
700
650
600
550
1.00E+08
100
TJ, JUNCTION TEMPERATURE ( C)
Figure 6. MRF857S MTBF Factor versus
Junction Temperature
1.00E+07
1.00E+06
1.00E+05
1.00E+04
1.00E+03
1.00E+02
120
140
160
180
200
220
240
260
2
4
6
8
10
12
14
16
18
20
22
24
26
28
2
4
6
8
10
12
14
16
18
20
22
24
26
28
9.80E+06
2.01E+06
4.82E+05
1.32E+05
4.03E+04
1.37E+04
5.05E+03
8.67E+02
2.02E+03
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