
Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, Ca 90638
Phone: (562) 404-4474 * Fax: (562) 404-1773
ssdi@ssdi-power.com * www.ssdi-power.com
Designer’s Data Sheet
Part Numbe r/Ordering Information 1/
SDA345
__
└ Screening 2/
__ = Not Screened
TX = TX Level
TXV = TXV
S = S Level
SDA345
ULTRA FAST RECOVERY
HIGH VOLTAGE ASSEMBLY
Up To 18KV @ 250mA
125KHz Operating Frequency
FEATURES:
Designed For Use With High Voltage Switching Power Supplies
Discretes and Assemblies Screened to TX, TXV, or S Level
High Reverse Transient Energy Capabilities
Void Free, Hermetically Sealed, Metallurgically Bonded Discretes
Single Junction Discretes Provide Superior Thermal Properties
Than Designs Using Multi-junction Discretes
Isolated Aluminum Heat Sink with Special Epoxy Encapsulation
Provides Superior Power Dissipation
All Internal Devices are Matched & Selected
Unique Construction Techniques Guarantee 100% Corona Free
Operation
Consult Factory for Higher Voltages and Currents and Alternate
Bridge Configurations
NOTES:
1/ Unless Otherwise Specified, All Electrical Characteristics @25C.
6/ IO (MAX), 60Hz, Square Wave, TC = 55
OC.
2/ Resistive Load, 50Hz, Sine Wave, TC=25
OC.
7/ IF = 1 Adc, TC = 25
OC, 300 μs Pulse.
3/ TC=55
OC, 8.3ms Pulse, Allow Junction to Reach Equilibrium Between Pulses.
8/ Rated VR, 60Hz, Square Wave, TC = 100
OC.
4/ TC=55
OC, 8.3ms Pulse, Superimposed on Rated Current at Rated Voltage.
9/ Rated VR, TC = 25
OC.
5/ Recovery Conditions: IF = 0.5 Amp, IR = 1.0 Amp rec. to .25 Amp,
10/ VR = 100V, TC = 25
OC.
tested on each individual diode before assembly.
MAXIMUM RATINGS
PER LEG
ELECTRICAL CHARACTERISTICS
PER LEG
Rating
1/
Symbol
Value
Unit
Characteristic
1/
Symbol Value
Unit
Peak Repetitive Reverse Voltage and DC
Blocking Voltage
VRM(rep)
Vr
3,000
Volts
Max. Full Cycle Forward Voltage
Drop, Averaged Over Full Cycle 6/
VF
(AV)
2.85
Vdc
RMS Reverse Voltage
Vr
2,100
Volts
Max. Instantaneous Forward
Voltage Drop 7/
VF
5.7
Vdc
Half Wave Rectified Forward Current
Averaged Over Full Cycle 2/
IO
1
Amps
Peak Repetitive Forward Current 3/
IFM(rep)
6
Amps
Max. Full Cycle Leakage Current
Averaged Over Full Cycle 8/
IR
(AV)
100
μAdc
Peak Surge Current 4/
IFM(surge)
25
Amps
Max. Reverse Leakage Current 9/
IR
5
μAdc
Operating & Storage Temperature
TJ, Tstg
-55 to
+125
OC
Max. Junction Capacitance 10/
CJ
4
pf
Reverse Recovery Time 5/
trr
60
ns
NOTE: All specifications are subject to change without notification.
SCD's for these devices should be reviewed by SSDI prior to release.
DATA SHEET #: RA0072A
DOC