1N4944-T [UNIOHM]
Rectifier Diode, 1 Element, 1A, 400V V(RRM), Silicon, DO-41, PLASTIC PACKAGE-2;
| 型号： | 1N4944-T |
| 厂家： | 
UNIOHM CORPORATION |
| 描述： | Rectifier Diode, 1 Element, 1A, 400V V(RRM), Silicon, DO-41, PLASTIC PACKAGE-2 整流二极管 快速恢复二极管 |
| 文件： | 总2页 (文件大小：67K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1N4942 THRU 1N4948
1.0 AMP FAST RECOVERY RECTIFIERS
VOLTAGE RANGE
200 to 1000 Volts
CURRENT
1.0 Ampere
FEATURES
* Low forward voltage drop
* Low leakage current
* High reliability
DO-41
.107(2.7)
.080(2.0)
DIA.
* High current capability
1.0(25.4)
MIN.
MECHANICAL DATA
* Case: Molded plastic
.205(5.2)
.166(4.2)
* Epoxy: UL 94V-0 rate flame retardant
* Lead: Axial leads, solderable per MIL-STD-202,
method 208 guranteed
* Polarity: Color band denotes cathode end
* Mounting position: Any
1.0(25.4)
MIN.
.034(.9)
* Weight: 0.34 grams
.028(.7)
DIA.
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating 25 C ambient temperature uniess otherwies specified.
Single phase half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
UNITS
TYPE NUMBER
1N4942
1N4944
1N4946
1N4947
1N4948
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
V
V
V
200
140
200
400
280
400
600
420
600
800
560
800
1000
700
Maximum DC Blocking Voltage
1000
Maximum Average Forward Rectified Current
.375"(9.5mm) Lead Length at Ta=75 C
1.0
A
Peak Forward Surge Current, 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Maximum Instantaneous Forward Voltage at 1.0A
30
1.3
5.0
A
V
A
Maximum DC Reverse Current
Ta=25 C
at Rated DC Blocking Voltage
Ta=100 C
100
A
Maximum Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
nS
150
250
500
15
-65 +150
pF
C
Operating and Storage Temperature Range TJ, TSTG
NOTES:
1. Reverse Recovery Time test condition: IF=0.5A, IR=1.0A, IRR=0.25A
2. Measured at 1MHz and applied reverse voltage of 4.0V D.C.
RATING AND CHARACTERISTIC CURVES (1N4942 THRU 1N4948)
FIG.1-TYPICAL FORWARD
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
CHARACTERISTICS
1.2
1.0
0.8
0.6
50
10
3.0
1.0
Single Phase
Half Wave 60Hz
Resistive Or Inductive Load
0.4
0.375"(9.5mm) Lead Length
0.2
0
0
20
40
60
80
100
120
140
160
180
200
Tj=25 C
AMBIENT TEMPERATURE,( C)
Pulse Width 300us
1% Duty Cycle
0.1
FIG.4-MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
30
.01
.6
.8 1.0 1.2 1.4 1.6 1.8 2.0
24
18
12
6
FORWARD VOLTAGE,(V)
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTICS
8.3ms Single Half
Tj=25 C
Sine Wave
50W
10W
NONINDUCTIVE
NONINDUCTIVE
JEDEC method
(
)
(+)
D.U.T.
25Vdc
PULSE
GENERATOR
(NOTE 2)
0
(approx.)
50
1
5
10
100
(
)
(+)
NUMBER OF CYCLES AT 60Hz
1W
OSCILLISCOPE
(NOTE 1)
NON-
INDUCTIVE
NOTES: 1. Rise Time= 7ns max., Input Impedance= 1 megohm.22pF.
2. Rise Time= 10ns max., Source Impedance= 50 ohms.
FIG.5-TYPICAL JUNCTION CAPACITANCE
35
30
25
20
trr
|
|
|
|
|
|
|
|
+0.5A
0
15
10
5
-0.25A
-1.0A
0
.01
.05
.1
.5
1
5
10
50
100
1cm
SET TIME BASE FOR
50 / 10ns / cm
REVERSE VOLTAGE,(V)
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