1N4933 THRU 1N4937
Features
Mechanical Data
· Plastic package has Underwrites Laboratory Flammability
Classification 94V-0
· Fast switching speed
· Construction utilizes void-free molded plastic technique
· 1.0A operation at TA=75℃ with to terminal runaway
· High temperature soldering guaranteed : 250℃/10 seconds,
0.375"(9.5mm) lead length, 5 lbs.(2.3kg) tension.
Maximum Ratings And Electrical Characteristics
· Case : JEDEC DO-41 molded plastic body
· Terminals : Plated axial lead solderable per MIL-STD-750,
method 2026
· Polarity : Color band denotes cathode end
· Mounting Position : Any
· Weight : 0.012 ounce, 0.34 gram
(Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive
load. For capacitive load, derate by 20%)
CURRENT 1.0 Ampere
VOLTAGE 50 to 600 Volts
Notes:
(1) Test conditions: I
F
=1.0A, V
R
=30V, di/dt=50A/μS, and Irr=10%I
RM
.
(2) Measured at 1MHz and applied reverse voltage of 4.0 Volts.
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Volts
Peak forward surge current 8.3ms single
half sine-wave superimposed on rated load
(JEDEC method) at TA=75℃
VDC
Maximum average forward rectified current
0.375"(9.5mm) lead length TA=75℃
Maximum instantaneous forward voltage
at 1.0A
VRRM Volts
Symbols Units
1.3VF
VRMS
1.0
Amps30.0IFSM
TJ
TSTG
100
-65 to +150 ℃
Volts
Amp
Maximum DC reverse current at rated DC
blocking voltage
Maximum reverse recovery time (Note 1)
Typical junction capacitance (Note 2)
Operating junction and storage
temperature range
50
1N4933
35
50
5.0
Volts
μA
ns
pF
I(AV)
IR
Trr
15.0
CJ
100
1N4934
70
100
200
1N4935
140
200
400
1N4936
280
400
600
1N4937
420
600
Maximum full load reverse current full cycle
average. 0.375"(9.5mm) lead length at
TL=55℃
150
Dimensions in inches and (millimeters)
DO-41
1.0(25.4)
MIN.
1.0(25.4)
MIN.
0.205(5.2)
0.166(4.2)
0.034(0.9)
0.028(0.7)
DIA.
0.107(2.7)
0.080(2.0)
DIA.
FIG.1-TYPICAL FORWARD CURRENT
DERATING CURVE
1250 25 1501007550 175
AVERAGE FORWARD CURRENT(A)
AMBIENT TEMPERATURE ( ℃)
SINGLE PHASE HALF WAVE 60Hz
RESISTIVE OR INDUCTIVE LOAD
0
0.2
0.4
0.6
1.0
0.8
FIG.3-TYPICAL JUNCTION CAPACITANCE
REVERSE VOLTAGE. (V)
JUNCTION CAPACITANCE(pF)
100.1
0.2
4 200.4 21 40 100
T
J
=25℃
1
2
6
4
100
40
20
10
200
60
FIG.2-MAXIMUM NON-REPETITIVE
FORWARD SURGE CURRENT
NUMBER OF CYCLES AT 60Hz
PEAK FORWARD SURGE
CURRENT(AMPERES)
10
30
50
0
20
40
8.3m SINGLE HALF SINE WAVE
(JEDEC Method)
1 2 1006010864 4020
FIG.4-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT(AMPERES)
1.20.4 0.6 1.41.00.8 1.81.6
INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
10
20
0.1
0.01
1
0.03
0.3
3
T
J
=25℃
Pulse Width=300mS
1% Duty Cycle
Si(t) di/dt=50A/uS
0
IRM (REC)
IFM 1.0
Trr
SET TIME BASE FOR 50/100 ns/cm
FIG.5-TEST CIRCUIT DIAGRAM AND REVERSE
RECOVERY TIME CHARACTERISTIC
10K
2W
30Vdc
CONSTANT VOLTAGE
SUPPLY
C.PCLARE HPG 1002
115Va
60Hz
1APM
SLO.BLO
FUSE
C1
1.OmF
300V
3.8mH/1.4W
R1
R2
1W
10W
NON-INDUCTIVE
30W
50W
NON-INDUCTIVE
UNIT
UNDER TEST
1.0Adc FROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE=3mVrms MAX
1
2
3
4
5
6
7
8
C1
MINIMIZE ALL LEAD LENGTHS Zout 11/2W MAX DC TO 2kHz
A. TEKTRONIX 545A.K PLUG IN PRE AMP P6000 PROBE OR EQUIVALENT R1-ADJUSTED FOR 1.4W BETWEEN POINT 2
OF RELAY AND RECTIFIER INDUCTIVE=3.8uH
R2-TEN-1W 10W% CARBON CORE IN PARALLEL TA=25 FOR RECTIFIER
-0
+10℃
RATINGS AND CHARACTERISTIC CURVES 1N4933 THRU 1N4937
