1N4948G [LGE]
Fast Recovery Rectifiers; 快恢复二极管
| 型号： | 1N4948G |
| 厂家： | 
LGE |
| 描述： | Fast Recovery Rectifiers |
| 文件： | 总2页 (文件大小：181K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1N4942G-1N4948G
Fast Recovery Rectifiers
VOLTAGE RANGE: 200 --- 1000 V
CURRENT: 1.0 A
DO - 41
Features
Low cost
Glass passivated junction
Low leakage
Low forward voltage drop
High current capability
Easilycleaned with Freon,Alcohol,Isopropanol
and similar solvents
The plastic material carries U/L recognition 94V-0
Mechanical Data
Dimensions in millimeters
Case:JEDEC DO-41,molded plastic
Polarity: Color band denotes cathode
Weight: 0.34 grams
Mounting position: Any
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by20%.
1N
4942G
1N
4944G
1N
4946G
1N
4947G
1N
4948G
UNITS
Maximum recurrent peak reverse voltage
Maximum RMS voltage
200
140
200
400
280
400
600
420
600
800
560
800
1000
700
V
V
V
VRRM
VRMS
VDC
Maximum DC blocking voltage
1000
Maximum average forw ard rectified current
1.0
A
IF(AV)
9.5mm lead length,
@TA=75
Peak forw ard surge current
IFSM
8.3ms single half-sine-w ave
30.0
1.3
A
superimposed on rated load @TJ=125
Maximum instantaneous forw ard voltage
@ 1.0 A
V
A
VF
IR
Maximum reverse current
@TA=25
5.0
at rated DC blocking voltage @TA=125
100
Maximum reverse recovery time (Note1)
150
250
500
ns
trr
Typical junction capacitance
Typical thermal resistance
(Note2)
(Note3)
12
55
pF
CJ
Rθ
/W
JA
Operating junction temperature range
- 55---- +150
- 55---- + 150
TJ
Storage temperature range
TSTG
NOTE:1. Measured with IF=0.5A, IR=1A, Irr=0.25A.
2. Measured at 1.0MHz and applied reverse voltage of 4.0V DC.
3. Thermal resistance f rom junction to ambient.
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mail:lge@luguang.cn
1N4942G-1N4948G
Fast Recovery Rectifiers
Ratings AND Charactieristic Curves
FIG.1 -- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50
N.1.
10
N.1.
trr
+0.5A
D.U.T.
(
- )
0
(+)
PULSE
50VDC
(APPROX)
(-)
GENERATOR
(NOTE2)
-0.25A
OSCILLOSCOPE
(NOTE 1)
1
(
+ )
N.1.
-1.0A
1cm
SETTIME BASE FOR 50/100 ns /cm
NOTES: 1. RISETIME = 7ns MAX. INPUTIMPEDANCE = 1M . 22PF
2. RISETIME= 10ns MAX. SOURCE IMPEDANCE = 50
FIG.2--FORWARDDERATINGCURVE
FIG.3 -- TYPICAL FORWARD CHARACTERISTICS
100
1.0
10
TJ=25
Pulse W idth=300 µS
4
.8
2
1.0
.6
0.4
0.2
0.1
.4.
Single Phase
Half Wave 60H
Resistive or
Z
0.06
0.04
.2
0
Inductive Load
0.02
0.01
0.6 0.8
1.0 1.2
1.4 1.6
1.8
2.0
25
50
75
100
125
150
175
AMBIENT TEMPERATURE,
INSTANTANEOUS FORWARD VOLTAGE,VOLTS
FIG.5-- TYPICAL JUNCTION CAPACITANCE
100
FIG. 4--PEAK FORWARD SURGE CURRENT
50
60
40
8.3ms Single Half
Sine-Wave
40
20
30
20
10
4
TJ=25
10
0
f=1MHz
2
1
2
4
6
8 10
20
40 60 80 100
1
.1
.2
.4
1.0
2
4
10
20 40
100
NUMBEROFCYCLESAT60Hz
REVERSEVOLTAGE,VOLTS
http://www.luguang.cn
mail:lge@luguang.cn
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