SRA7 - SRA9
SURFACE MOUNT
FAST RECOVERY RECTIFIER
PRV : 400 - 1000 Volts
Io : 1.0 Ampere
FEATURES :
* High current capability
* High surge current capability
* High reliability
* Low reverse current
* Low forward voltage drop
* Fast switching for high efficiency
MECHANICAL DATA :
* Case : SMA Molded plastic
* Epoxy : UL94V-O rate flame retardant
* Lead : Lead Formed for Surface Mount
* Polarity : Color band denotes cathode end
* Mounting position : Any
* Weight : 0.067 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating at 25
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
SYMBOL
SRA7
SRA8
SRA9
UNIT
Maximum Recurrent Peak Reverse Voltage
V
RRM
400
600
1000
V
Maximum RMS Voltage
V
RMS
280
420
700
V
Maximum DC Blocking Voltage
V
DC
400
600
1000
V
Maximum Average Forward Current Ta = 45
C
I
F(AV)
1.0
A
Maximum Peak Forward Surge Current,
8.3ms Single half sine wave
Superimposed on rated load (JEDEC Method)
Maximum Peak Forward Voltage at I
F
= 1.0 A
V
F
1.3
V
Maximum DC Reverse Current Ta = 25
C
I
R
5.0
A
at Rated DC Blocking Voltage Ta = 100
C
I
R(H)
100
A
Maximum Reverse Recovery Time (Note 1)
Trr
150
250
ns
Typical Junction Capacitance (Note 2)
C
J
20
pf
Junction Temperature Range
T
J
- 65 to + 150
C
Storage Temperature Range
T
STG
- 65 to + 150
C
Notes :
( 1 ) Reverse Recovery Test Conditions : I
F
= 0.5 A, I
R
= 1.0 A, Irr = 0.25 A.
( 2 ) Measured at 1.0 MHz and applied reverse voltage of 4.0 V
DC
Page 1 of 2
Rev. 01 : April 2, 2002
RATING
I
FSM
35
A
2.0
0.2
2.1
0.2
SMA (DO-214AC)
1.2
0.2
5.0
0.15
4.5
0.15
2.6
0.15
Dimensions in millimeter
1.1
0.3
0.2
0.07
RATING AND CHARACTERISTIC CURVES ( SRA7 - SRA9 )
FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
+
NOTES : 1. Rise Time = 7 ns max., Input Impedance = 1 megaohm, 22 pF.
2. Rise time = 10 ns max., Source Impedance = 50 ohms.
3. All Resistors = Non-inductive Types.
FIG.2 - DERATING CURVE FOR OUTPUT
FIG.3 - MAXIMUM NON-REPETITIVE PEAK
RECTIFIED CURRENT
FORWARD SURGE CURRENT
0
25
50
75
100
125
150
175
1
2
4
6
10
20
40
60 100
AMBIENT TEMPERATURE, (
C)
NUMBER OF CYCLES AT 60Hz
FIG.4 - TYPICAL FORWARD CHARACTERISTICS
FIG.5 - TYPICAL REVERSE CHARACTERISTICS
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Page 2 of 2
Rev. 01 : April 2, 2002
RESISTIVE OR INDUCTIVE LOAD
0.8
0.6
0.4
0.2
1.0
20
10
1.0
28
0
35
0
21
14
7
0.1
10
80
0.01
0.01
1.0
0.1
100
140
0
20
40
60
120
PERCENT OF RATED REVERSE VOLTAGE, (%)
PEAK FORWARD SURGE
CURRENT, AMPERES
AVERAGE FORWARD OUTPUT
CURRENT, AMPERES
FORWARD CURRENT, AMPERES
REVERSE CURRENT, MICROAMPERES
T
J
= 25
C
T
J
= 100
C
T
J
= 25
C
Pulse W idth = 300
s
2% Duty Cycle
8.3 ms SINGLE HALF SINE WAVE
Ta = 50
C
SET TIME BASE FOR 50-100 ns/cm
Trr
+ 0.5
0
- 0.25
- 1.0 A
1
50 Vdc
(approx)
OSCILLOSCOPE
( NOTE 1 )
1
50
10
D.U.T.
PULSE
GENERATOR
( NOTE 2 )
FORWARD VOLTAGE, VOLTS
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