U421 Vishay, U421 Datasheet - Page 5
![Transistor](/photos/22/17/221710/3758121_sml.gif)
U421
Manufacturer Part Number
U421
Description
Transistor
Manufacturer
Vishay
Datasheet
1.U421.pdf
(5 pages)
Specifications of U421
Breakdown Voltage Vbr
-40V
Gate-source Cutoff Voltage Vgs(off) Max
-2V
Power Dissipation Pd
500mW
Continuous Drain Current Id
1mA
Gate-source Breakdown Voltage
-40V
Mounting Type
Through Hole
Current Rating
10mA
Gate-source Cutoff Voltage
-2V
Rohs Compliant
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
U421
Manufacturer:
VISHAY10
Quantity:
487
Document Number: 70248
S-03180—Rev. D, 17-Feb-03
TYPICAL CHARACTERISTICS (T
1.6
1.2
0.8
0.4
0.8
0.6
0.4
0.2
0.8
0.6
0.4
0.2
2
0
1
0
1
0
10
10
Common-Source Forward Transconductance
0
V
V
Output Conductance vs. Drain Current
GS(off)
GS(off)
Common-Source Input Capacitance
V
10 V
DS
25_C
-4
= -1 V
= -1 V
V
= 0 V
vs. Gate-Source Voltage
GS
125_C
I
I
D
25_C
D
- Gate-Source Voltage (V)
vs. Drain Current
T
- Drain Current (mA)
- Drain Current (mA)
A
= -55_C
-8
125_C
5 V
T
A
100
100
= -55_C
-12
V
f = 1 kHz
V
f = 1 kHz
DS
DS
f = 1 MHz
= 10 V
= 10 V
-16
A
= 25_C UNLESS OTHERWISE NOTED)
1000
1000
-20
0.8
0.6
0.4
0.2
50
40
30
20
10
1
0
0
5
4
3
2
1
0
10
0
0
Equivalent Input Noise Voltage vs. Frequency
On-Resistance and Output Conductance
V
I
Capacitance vs. Gate-Source Voltage
D
Common-Source Reverse Feedback
10 V
DS
r
g
= 100 mA
DS
V
os
= 10 V
vs. Gate-Source Cutoff Voltage
GS(off)
-4
-1
f = 1 MHz
I
@ I
@ V
D
100
r
V
= 30 mA
DS
D
GS
DS
- Gate-Source Cutoff Voltage (V)
= 10 mA, V
5 V
- Gate-Source Voltage (V)
= 10 V, V
f - Frequency (Hz)
-8
-2
V
DS
GS
1 k
= 0 V
GS
= 0 V
= 0 V, f = 1 kHz
Vishay Siliconix
g
-12
-3
os
10 k
-16
U421/423
-4
www.vishay.com
100 k
-20
-5
20
16
12
8
4
0
7-5