PG4942 THRU PG4948
GLASS PASSIVATED JUNCTION FAST SWITCHING RECTIFIER
VOLTAGE - 200 to 1000 Volts CURRENT - 1.0 Ampere
FEATURES
l
High surge current capability
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Plastic package has Underwriters Laboratory
Flammability Classification 94V-O Utilizing
Flame Retardant Epoxy Molding Compound
1.0 ampere operation at T
A
=55
¢J
with no thermal runaway
Fast switching for high efficiency
Exceeds environmental standards of MIL-S-19500/228
Glass passivated junction in DO-41 package
DO-41
l
l
l
l
MECHANICAL DATA
Case: Molded plastic, DO-41
Terminals: Axial leads, solderable per MIL-STD-202,
Method 208
Polarity: Band denotes cathode
Mounting Position: Any
Weight: 0.012 ounce, 0.3 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
¢J
ambient temperature unless otherwise specified.
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified
Current .375"(9.5mm) lead length at T
A
=55
¢J
Peak Forward Surge Current 8.3ms single half sine
wave superimposed on rated load(JECEC method)
Maximum Forward Voltage at 1.0A
Maximum Reverse Current T
a
=25
¢J
at Rated DC Blocking Voltage T
a
=100
¢J
Typical Junction capacitance (Note 1) CJ
Typical Thermal Resistance (Note 3) R
£KJA
Maximum Reverse Recovery Time(Note 2)
Operating and Storage Temperature Range
NOTES:
1. Measured at 1 MHz and applied reverse voltage of 4.0 VDC
2. Reverse Recovery Test Conditions: I
F
=.5A, I
R
=1A, I
rr
=.25A
3. Thermal resistance from junction to ambient at 0.375"(9.5mm) lead length P.C.B. mounted
PG4942
200
140
200
PG4944
400
280
400
PG4946
600
420
600
1.0
30
1.3
5.0
150
12
67
250
-55 to +150
PG4947
800
560
800
PG4948
1000
700
1000
UNITS
V
V
V
A
A
V
£g
A
£g
A
P
F
¢J
/W
ns
¢J
150
150
250
500
RATING AND CHARACTERISTIC CURVES
PG4942 THRU PG4948
t
rr
+0.5A
0
-0.25
NOTE:1.Rise Time = 7ns max.
Input Impedance = 1 megohm. 22pF
2.Rise Time = 10ns max.
Source Impedance = 50 Ohms
-1.0
SET TIME
BASE FOR
50 ns/cm
1cm
Fig. 1-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
10
INSTANTANEOUS FORWARD CURRENT,
AMPERES
1
AVERAGE FORWARD RECTIFIED
CURRENT AMPERES
TJ = 25
¢J
1.6
1.4
1.2
1.0
.8
.6
.4
.2
0
0
20
40
60
80
100
120
140
160
180
MAXIMUM AVERAGE CURRENT RATING
SINGLE PHASE, HALF WAVE 60Hz
RESISTIVE OR INDUCTIVE
LOAD .375"(9.5mm) LEAD LENGTHS
0.1
PULSE
WIDTH = 300
£g
s
1% DUTY CYCLE
0.01
0.2
0.4
0.6
0.8
1.0 1.2 1.4
1.6
AMBIENT TEMPERATURE,
¢J
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
Fig. 2-TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
Fig. 3-FORWARD CURRENT DERATING CURVE
100
FORWARD SURGE CURRENT, AMPERES pk
(HALF-SINE WAVE)
30
CAPACITANCE, pF
24
10
TJ = 25
¢J
18
12
6
1
1
10
100
1
2
4
6 8 10
20
40 60 80 100
REVERSE VOLTAGE, Vdc
NUMBER OF CYCLES AT 60Hz
Fig. 4-TYPICAL JUNCTION CAPACITANCE
Fig. 5-PEAK FORWARD SURGE CURRENT
嵌入式系统
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