1N4937 [RECTRON]
FAST RECOVERY RECTIFIER; 快速恢复整流
| 型号： | 1N4937 |
| 厂家： | 
RECTRON SEMICONDUCTOR |
| 描述： | FAST RECOVERY RECTIFIER |
| 文件： | 总2页 (文件大小：32K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1N4933
THRU
RECTRON
SEMICONDUCTOR
TECHNICAL SPECIFICATION
1N4937
FAST RECOVERY RECTIFIER
VOLTAGE RANGE 50 to 600 Volts CURRENT 1.0 Ampere
FEATURES
* Low cost
* Low leakage
* Low forward voltage drop
* High current capability
DO-41
MECHANICAL DATA
* Case: Molded plastic
.034 (0.9)
DIA.
* Epoxy: Device has UL flammability classification 94V-O
* Lead: MIL-STD-202E method 208C guaranteed
* Mounting position: Any
.028 (0.7)
1.0 (25.4)
MIN.
* Weight: 0.33 gram
.205 (5.2)
.166 (4.2)
.107 (2.7)
DIA.
.080 (2.0)
1.0 (25.4)
MIN.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Dimensions in inches and (millimeters)
MAXIMUM RATINGS (At T
A
= 25oC unless otherwise noted)
RATINGS
SYMBOL
1N4933
1N4934
1N4935
1N4936
1N4937
UNITS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
V
V
RRM
RMS
50
35
50
100
70
200
140
200
400
280
400
600
420
600
Volts
Volts
Volts
V
DC
O
100
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
I
1.0
30
Amps
Amps
at TA
= 75oC
Peak Forward Surge Current 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
I
FSM
Typical Junction Capacitance (Note 2)
C
J
15
pF
0 C
Operating and Storage Temperature Range
T
J
, TSTG
-65 to + 150
ELECTRICAL CHARACTERISTICS (At TA
= 25oC unless otherwise noted)
CHARACTERISTICS
Maximum Instantaneous Forward Voltage at 1.0A DC
Maximum DC Reverse Current
SYMBOL
1N4933
1N4934
1N4935
1.2
1N4936
1N4937
UNITS
Volts
V
F
5.0
uAmps
at Rated DC Blocking Voltage T
Maximum Full Load Reverse Current Full Cycle
Average, .375” (9.5mm) lead length at T
= 55oC
Maximum Reverse Recovery Time (Note 1)
NOTES : 1. Test Conditions: I = 1.0A, V = 30V
2. Measured at 1 MH and applied reverse voltage of 4.0 volts
A
= 25oC
I
R
100
200
uAmps
nSec
L
trr
F
R
2001-5
Z
(
)
RATING AND CHARACTERISTIC CURVES 1N4933 THRU 1N4937
FIG. 1 - TYPICAL FORWARD CURRENT
DERATING CURVE
FIG. 2 - MAXIMUM NON-REPETITIVE
FORWARD SURGE CURRENT
50
40
1.0
.8
.6
.4
.2
0
8.3ms Single Half Sine-Wave
(JEDED Method)
30
20
Single Phase
Half Wave 60Hz
Resistive or
10
0
Inductive Load
0
25
50
75
100 125 150 175
1
2
4
6 810 20 40 6080100
AMBIENT TEMPERATURE, (
)
NUMBER OF CYCLES AT 60Hz
FIG. 3 - TYPICAL JUNCTION CAPACITANCE
FIG. 4 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
20
10
200
100
60
T
= 25
J
40
1.0
20
10
T
= 25
J
6
4
.1
Pulse Width=300uS
1% Duty Cycle
2
1
.01
.6
.8
1.0
1.2
1.4
.1 .2 .4
1.0
2
4
10 20 40 100
INSTANTANEOUS FORWARD VOLTAGE, (V)
REVERSE VOLTAGE, ( V )
FIG. 5 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY
TIME CHARACTERISTIC
8
1
30
50W
NON-INDUCTIVE
3.8uH/1.4
115Va 10K
60Hz 2W
2
3
7
UNIT
UNDER TEST
6
4
1.0 Adc FROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE = 3mVrms MAX
trr
5
C.P.CLARE
HPG 1002
1 AMP
SLO-BLO
FUSE
i(t) di/dt = 50A/uS
IFM 1.0
R2
1
10W
NON-
C1
1.0uF
300V
C1
1.0uF
300V
30 Vdc
CONSTANT VOLTAGE
SUPPLY
INDUCTIVE
0
1
Zout 1
/
MAX
MINIMIZE ALL LEAD LENGTHS
2
DC to 2kHz
A-TEKTRONIX 545A. K PLUG IN
PRE AMP P6000 PROBE OR EQUIVALENT
R1-ADJUSTED FOR 1.4 BETWEEN
POINT 2 OF RELAY AND RECTIFIER
INDUCTIVE = 3.8uH
R2-TEN-1W 10 % CARBON CORE
IN PARALLEL
IRM (REC)
SET TIME BASE FOR
50/100 ns/cm
10
T
= 25
FOR RECTIFIER
A
0
RECTRON
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