SMA5817 -SMA5819
PRV : 20 - 40 Volts
I
O
: 1.0 Ampere
FEATURES :
* High current capability
* High surge current capability
* High reliability
* High efficiency
* Low power loss
* Low cost
* Low forward voltage drop
* Pb / RoHS Free
SURFACE MOUNT SCHOTTKY
BARRIER RECTIFIERS
SMA-L
1.3
±
0.2
5.4
±
0.2
4.4
±
0.2
2.3
±
0.2
1.8
±
0.2
2.7
±
0.2
MECHANICAL DATA :
* Case : SMA-L Molded plastic
* Epoxy : UL94V-O rate flame retardant
* Polarity : Color band denotes cathode end
* Mounting position : Any
* Weight : 0.060 gram (Approximately)
1.8
±
0.2
Dimensions in millimeter
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%.
RATING
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Current
0.375", 9.5mm Lead Length at T
L
= 90
°C
Maximum Peak Forward Surge Current,
8.3ms single half sine wave
Superimposed on rated load (JEDEC Method) T
L
= 70
°C
Maximum Forward Voltage at I
F
= 1.0 A
Maximum Reverse Current
at Rated DC Blocking Voltage (Note 1)
Typical Thermal Resistance (Note 2)
Typical Junction Capacitance (Note 3)
Junction Temperature Range
Storage Temperature Range
Ta = 25
°C
Ta = 100
°C
SYMBOL
SMA5817 SMA5818 SMA5819
V
RRM
V
RMS
V
DC
I
F(AV
)
20
14
20
30
21
30
1.0
40
28
40
UNIT
V
V
V
A
I
FSM
V
F
I
R
I
R(H)
R
θ
JL
C
J
T
J
T
STG
0.45
25
0.55
1.0
10
15
110
- 65 to + 125
- 65 to + 125
0.60
A
V
mA
mA
°C/W
pF
°C
°C
Notes :
(1) Pulse Test : Pulse Width = 300
µs,
Duty Cycle = 2%.
(2) Thermal Resistance from junction to lead, PC board Mounting with 0.375" (9.5mm) Lead Lengths and 1.5 in
2
(38.1mm
2
) copper pads.
(3) Measured at 1 MHz and applied reverse voltage of 4.0 volts.
Page 1 of 2
Rev. 01 : September 30, 2005
RATING AND CHARACTERISTIC CURVES ( SMA5817 - SMA5819 )
FIG.1 - FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD CURRENT,
AMPERES
1.0
FIG.2 - MAXIMUM NON-REPETITIVE PEAK
FORWARD SURGE CURRENT
25
0.8
PEAK FORWARD SURGE
CURRENT, AMPERES
20
0.6
15
0.4
10
0.2
5
0
0
20
40
60
80
100
120
140
0
1
2
4
6
10
20
40
60
100
LEAD TEMPERATURE, (
°
C)
NUMBER OF CYCLES AT 60Hz
FIG.3 - TYPICAL FORWARD CHARACTERISTICS
20
10
SMA5817
SMA5819
FIG.4 - TYPICAL REVERSE CHARACTERISTICS
10
T
J
= 100
°C
FORWARD CURRENT, AMPERES
REVERSE CURRENT,
MILLIAMPERES
1.0
SMA5818
1.0
0.1
T
J
= 25
°C
T
J
= 25
°C
PULSE WIDTH =
300µs
0.1
0.1
0.01
0
20
40
60
80
100
120
140
0.3
0.5
0.7
0.9
1.1
1.3
1.5
1.7
1.9
2.1
PERCENT OF RATED REVERSE
VOLTAGE, (%)
FORWARD VOLTAGE, VOLTS
Page 2 of 2
Rev. 01 : September 30, 2005
