BFR30LT1 Datasheet, PDF (3/4 Pages) Motorola, Inc – JFET Amplifiers(N-Channel)

BFR30LT1, BFR31LT1
1.2
V_GS(OFF) ^ −1.2 V
1.0
TYPICAL CHARACTERISTICS
1.2
V_GS = 0 V
V_GS(OFF) ^ −1.2 V
1.0
0.8
−0.2 V
0.8
V_DS = 15 V
0.6
0.6
−0.4 V
0.4
0.4
−0.6 V
0.2
−0.8 V
0.2
−1.0 V
0
0
0
5
10
15
20
25
−1.2
−0.8
−0.4
0
V_DS, DRAIN−SOURCE VOLTAGE (VOLTS)
V_GS, GATE−SOURCE VOLTAGE (VOLTS)
Figure 3. Typical Drain Characteristics
Figure 4. Common Source Transfer
Characteristics
5
4
V_GS(OFF) ^ −3.5 V
3
V_GS = 0 V
−1 V
2
−2 V
1
−3 V
0
0
5
10
15
20
25
V_DS, DRAIN−SOURCE VOLTAGE (VOLTS)
Figure 5. Typical Drain Characteristics
10
V_GS = 0 V
8
V_GS(OFF) ^ −5.8 V
−1 V
6
−2 V
4
−3 V
2
−4 V
−5 V
0
0
5
10
15
20
25
V_DS, DRAIN−SOURCE VOLTAGE (VOLTS)
Figure 7. Typical Drain Characteristics
5
V_GS(OFF) ^ −3.5 V
4
3
V_DS = 15 V
2
1
0
−5
−4
−3
−2
−1
0
V_GS, GATE−SOURCE VOLTAGE (VOLTS)
Figure 6. Common Source Transfer
Characteristics
10
V_GS(OFF) ^ −5.8 V
8
6
V_DS = 15 V
4
2
0
−7
−6
−5
−4
−3
−2
−1
0
V_GS, GATE − SOURCE VOLTAGE (VOLTS)
Figure 8. Common Source Transfer
Characteristics
Note: Graphical data is presented for dc conditions. Tabular data is given for pulsed conditions (Pulse Width = 630 ms, Duty Cycle = 10%).
Under dc conditions, self heating in higher I_DSS units reduces I_DSS.
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