SRA7 - SRA9
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
SURFACE MOUNT
FAST RECOVERY RECTIFIER
SMA (DO-214AC)
1.1
±
0.3
5.0
±
0.15
4.5
±
0.15
1.2
±
0.2
2.6
±
0.15
2.1
±
0.2
0.2
±
0.07
* Pb / RoHS Free
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
2.0
±
0.2
Dimensions in millimeter
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%.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
RATING
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Current Ta = 45
°C
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
Maximum DC Reverse Current
at Rated DC Blocking Voltage
Ta = 25
°C
Ta = 100
°C
SYMBOL
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
V
F
I
R
I
R(H)
Trr
SRA7
400
280
400
SRA8
600
420
600
1.0
35
1.3
5.0
100
150
20
- 65 to + 150
- 65 to + 150
SRA9
1000
700
1000
UNIT
V
V
V
A
A
V
µA
µA
Maximum Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
Junction Temperature Range
Storage Temperature Range
250
ns
pf
°C
°C
C
J
T
J
T
STG
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. 02 : March 24, 2005
RATING AND CHARACTERISTIC CURVES ( SRA7 - SRA9 )
FIG.1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50
Ω
10
Ω
+ 0.5
D.U.T.
50 Vdc
(approx)
1
Ω
PULSE
GENERATOR
( NOTE 2 )
OSCILLOSCOPE
( NOTE 1 )
0
- 0.25
Trr
+
- 1.0 A
SET TIME BASE FOR 50-100 ns/cm
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.
1
FIG.2 - DERATING CURVE FOR OUTPUT
RECTIFIED CURRENT
AVERAGE FORWARD OUTPUT
CURRENT, AMPERES
1.0
35
FIG.3 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
PEAK FORWARD SURGE
CURRENT, AMPERES
8.3 ms SINGLE HALF SINE WAVE
Ta = 50
°C
28
0.8
0.6
21
0.4
14
0.2
RESISTIVE OR INDUCTIVE LOAD
0
0
25
50
75
100
125
150
175
7
0
1
2
4
6
10
20
40
60 100
AMBIENT TEMPERATURE, (
°
C)
FIG.4 - TYPICAL FORWARD CHARACTERISTICS
REVERSE CURRENT, MICROAMPERES
FORWARD CURRENT, AMPERES
20
10
Pulse W idth = 300
µs
2% Duty Cycle
T
J
= 25
°C
1.0
NUMBER OF CYCLES AT 60Hz
FIG.5 - TYPICAL REVERSE CHARACTERISTICS
10
T
J
= 100
°C
1.0
0.1
0.1
T
J
= 25
°C
0.01
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0.01
0
20
40
60
80
100
120
140
FORWARD VOLTAGE, VOLTS
PERCENT OF RATED REVERSE VOLTAGE, (%)
Page 2 of 2
Rev. 02 : March 24, 2005
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