4/98
1N4245 THRU 1N4249
GLASS PASSIVATED JUNCTION RECTIFIER
Reverse Voltage - 200 to 1000 Volts Forward Current - 1.0 Ampere
FEATURES
High temperature metallurgically bonded construction
1.0 Ampere operation
T
A
=55
C with no
thermal runaway
Typical I
R
less than 0.1
A
Hermetically sealed package
Capable of meeting environmental standards of
MIL-S-19500
High temperature soldering guaranteed:
350
C/10 seconds, 0.375" (9.5mm) lead length,
5 lbs. (2.3kg) tension
MECHANICAL DATA
Case: JEDEC DO-204AP solid glass body
Terminals: Solder plated axial leads, solderable per
MIL-STD-750, Method 2026
Polarity: Color band denotes cathode end
Mounting Position: Any
Weight: 0.02 ounce, 0.56 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
C ambient temperature unless otherwise specified.
SYMBOLS
1N4245
1N4246
1N4247
1N4248
1N4249
UNITS
* Maximum repetitive peak reverse voltage
V
RRM
200
400
600
800
1000
Volts
Maximum RMS voltage
V
RMS
140
280
420
560
700
Volts
* Maximum DC blocking voltage
V
DC
200
400
600
800
1000
Volts
* Maximum average forward rectified current
0.375" (9.5mm) lead length at T
A
=55
C
I
(AV)
1.0
Amp
* Peak forward surge current
8.3ms single half sine-wave superimposed
I
FSM
50.0
Amps
on rated load (JEDEC Method)
* Maximum instantaneous forward voltage at 1.0A
V
F
1.2
Volts
* Maximum full load reverse current, full cycle
average 0.375" (9.5mm) lead length at T
A
=55
C
I
R(AV)
50.0
A
* Maximum reverse current
T
A
=25
C
1.0
at Rated DC blocking voltage
T
A
=125
C
I
R
25.0
A
Typical junction capacitance
(NOTE 1)
C
J
15.0
pF
Typical thermal resistance
(NOTE 2)
R
JA
55.0
C/W
* Operating junction temperature range
T
J
-65 to +160
C
* Storage temperature range
T
STG
-65 to +200
C
NOTES:
(1) Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts
(2) Thermal resistance from junction to ambient at 0.375" (9.5mm) lead length, P.C.B. mounted
*JEDEC registered values
DO-204AP
0.034 (0.86)
0.028 (0.71)
DIA.
0.150 (3.8)
0.100 (2.5)
DIA.
1.0 (25.4)
MIN.
0.240 (6.1)
MAX.
1.0 (25.4)
MIN.
Dimensions in inches and (millimeters)
*
Brazed-lead assembly is covered by Patent No. 3,930,306
P
A
TENTED*
150
0
25
75
125
0
0.4
1
10
0
10
20
30
40
50
10
100
1
10
30
100
175
50
100
1
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0.01
0.1
10
1
0.2
0.6
0.8
1.0
0
20
40
1
60
80
100
0.01
0.1
10
RATINGS AND CHARACTERISTIC CURVES 1N4245 THRU 1N4249
FIG. 1 - FORWARD CURRENT
DERATING CURVE
AMBIENT TEMPERATURE, C
AVERAGE FORWARD RECTIFIED
CURRENT, AMPERES
FIG. 2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
NUMBER OF CYCLES AT 60 Hz
PEAK FORWARD RECTIFIED SURGE
CURRENT, AMPERES
FIG. 3 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS FORWARD RECTIFIED CURRENT,
AMPERES
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
JUNCTION
CAPACITANCE, pF
REVERSE VOLTAGE, VOLTS
T
J
=T
J
max.
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
T
J
=25C
T
J
=25C
T
J
=150C
PULSE WIDTH=300
s
1% DUTY CYCLE
T
J
=25C
f=1.0 MHz
Vsig=50mVp-p
60 H
Z
RESISTIVE OR
INDUCTIVE LOAD
0.375" (9.5mm)
LEAD LENGTH
T
J
=125C
PERCENT OF RATED PEAK REVERSE
VOLTAGE, %
T
J
=75C
PDF 
ZIP