IN4937 [LRC]
1A FAST RECOVERY DIODES; 1A快恢复二极管
| 型号： | IN4937 |
| 厂家： | 
LESHAN RADIO COMPANY |
| 描述： | 1A FAST RECOVERY DIODES |
| 文件： | 总2页 (文件大小：57K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LESHAN RADIO COMPANY, LTD.
1N4933 – 1N4937
1A
1A FAST RECOVERY DIODES
Maximum Average
Rectified Current
@ Half-Wave
Maximum
Maximum
Maximum
Forward
Package
Maximum
Peak Reverse
Voltage
Forward Peak
Reverse
Current @ PRV
@ TA=25ºC
Maximum
Reverse
TYPE
Dimensions
Surge Current @
Voltage
Resistive Load 60Hz 8.3ms Superimposed
@ TA=25ºC
Recovery Time
PRV
V PK
I O @ T L
AAV ºC
I FM (Surge)
A PK
I
I FM
V FM
V PK
Trr
ns
R
µAdc
A PK
1N4933
1N4934
1N4935
1N4936
1N4937
50
100
200
400
600
1.0
75
30
5.0
1.0
1.2
150
DO – 41
Trr
I F = 0.5A, I R = 1.0A, I RR = 0.25A
Trr Test Conditions: I F = 0.5A, I R = 1.0A, I RR = 0.25A
.205(5.2)
.166(4.2)
1.0(25.4)
MIN
1.0(25.4)
MIN
.034(0.9)
.028(0.7)
DIA
.107(2.7)
.080(2.0)
DIA
DO – 41
13A–1/2
LESHAN RADIO COMPANY, LTD.
1N4933 – 1N4937
RATING & CHARACTERISTIC CURVES OF FAST RECOVERY DIODES
FIG.1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
30Ω¸50W
NON
INDUCTIVE
38µH/1.4Ω¸
Trr
1
8
115Va 10K
60Hz 2W
2
i(t) di/dt=50A/µs
IFM 1.0
0
7
UNIT
UNDER TEST
3
1.0Adc FROM
6
CONSTANT
4
5
C.P.CLARE
HPG1002
VOLTAGE SUPPLY
RIPPLE=3mVrms MAX
1 AMP
SLO BLO
FUSE
C1
I.0µF
300V
R2
1Ω¸
10W
NON
IRM(REC)
SET TIME BASE
FOR 50/100ns/cm
1cm
30Vdc
INSUCTIVE
C O N S T A N T
VOLTAGE
SUPPLY
Zout 1.5Ω¸ MAX
DC to 2KHz
MINIMIZE ALL LEAS LENGTHS
R2 TEN 1W 10Ω¸% CARBON CORE
A TEKTRONIX 545A.K PLUG IN PRE AMP
P6000 PROBE OR EQUIVALENT
R1 ADJUSTED FOR 1.4 Ω¸ BETWEEN
POINT 2 OF RELAY AND RECTIFIER
INDUCTIVE =38µH
FIG. 2 – TYPICAL FORWARD
IN PARALLEL
CURRENT DERATING CURVE
1.0
TA 25+10
ºC FOR RECTIFIER
O
.8
.6
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS
.4
20
10
Single Phase
.2
0
Half Wave 60Hz
Resistive or
Inductive Load
0
50
100
150 175
TJ =25ºC
AMBIENT TEMPER ATURE, (ºC)
1.0
0.1
Pulse Width=300µs
1% Duty Cycle
.01
.6
.8
1.0
1.2
1.4
INSTANTANEOUS FORWARD VOLTAGE,(V)
FIG. 4 - MAXINUM NON-REPETITIVE
FOWARD SURGE CURRENT
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
200
100
50
40
30
20
10
0
8.3ms Single Half Sine-Wave
(JEDEC Method)
60
40
20
10
TJ =25ºC
6
4
2
1
.1
.2
.4
1.0
2
4
10 20
40
100
1
2
4
6
8 10
20
40
60 80 100
NUMBER OF CYCLES AT 60Hz
REVERSE VOLTAGE,(V)
13A–2/2
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