參數(shù)資料
型號(hào): 2N5087
廠商: ON SEMICONDUCTOR
元件分類: 小信號(hào)晶體管
英文描述: PNP Silicon Amplifier Transistor(硅PNP放大器晶體管)
中文描述: 50 mA, 50 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92
封裝: CASE 29-11, TO-226, 3 PIN
文件頁數(shù): 3/7頁
文件大?。?/td> 151K
代理商: 2N5087
2N5087
http://onsemi.com
3
TYPICAL NOISE CHARACTERISTICS
(V
CE
= 5.0 Vdc, T
A
= 25
°
C)
Figure 1. Noise Voltage
f, FREQUENCY (Hz)
5.0
7.0
10
3.0
Figure 2. Noise Current
f, FREQUENCY (Hz)
1.0
10
20
50
100
200
500
1.0k
2.0k
5.0k
10k
1.0
7.0
5.0
3.0
2.0
1.0
0.7
0.5
0.3
0.1
BANDWIDTH = 1.0 Hz
R
S
0
I
C
= 10 A
100 A
e
I
30 A
BANDWIDTH = 1.0 Hz
R
S
≈ ∞
I
C
= 1.0 mA
300 A
100 A
30 A
10 A
10
20
50
100
200
500
1.0k 2.0k
5.0k
10k
2.0
1.0 mA
0.2
300 A
500k
100
200
500
1.0k
10k
5.0k
20k
50k
100k
200k
2.0k
1.0M
500k
100
200
500
1.0k
10k
5.0k
20k
50k
100k
200k
2.0k
1.0M
Figure 3. Narrow Band, 100 Hz
I
C
, COLLECTOR CURRENT ( A)
Figure 4. Narrow Band, 1.0 kHz
I
C
, COLLECTOR CURRENT ( A)
10
0.5 dB
BANDWIDTH = 1.0 Hz
R
R
Figure 5. Wideband
I
C
, COLLECTOR CURRENT ( A)
10
10 Hz to 15.7 kHz
R
Noise Figure is Defined as:
NF
20 log10
en2
4KTRS
4KTRS
In2RS2
1 2
= Noise Voltage of the Transistor referred to the input. (Figure 3)
= Noise Current of the Transistor referred to the input. (Figure 4)
= Boltzman’s Constant (1.38 x 10
23
j/
°
K)
= Temperature of the Source Resistance (
°
K)
= Source Resistance (Ohms)
e
n
I
n
K
T
R
S
1.0 dB
2.0 dB
3.0 dB
20
30
50 70 100
200 300
500 700 1.0k
10
20
30
50 70 100
200 300
500 700 1.0k
500k
100
200
500
1.0k
10k
5.0k
20k
50k
100k
200k
2.0k
1.0M
20
30
50
70
100
200 300
500 700 1.0k
BANDWIDTH = 1.0 Hz
5.0 dB
0.5 dB
1.0 dB
2.0 dB
3.0 dB
5.0 dB
0.5 dB
1.0 dB
2.0 dB
3.0 dB
5.0 dB
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