8700 E. Thomas Road
Scottsdale, AZ 85251
Tel: (480) 941-6300
Fax: (480) 947-1503
SMAJ5283
thru
SMAJ5314
CURRENT REGULATOR DIODES
FEATURES:
•
•
•
•
•
•
Surface-mount equivalent to 1N5283 thru 1N5314 series
Popular SMA Package DO-214AC outline-Small and Rugged
Nominal Current regulation 0.22 to 4.70 mA
Broad operating voltage
Constructed with an Oxide Passivated All Diffused Die
Good thermal dissipation for current regulation
MAXIMUM RATINGS:
•
•
•
•
Operating and Storage Temperature: -55°C to +150°C
DC Power Dissipation: 600mW @ T
L
≤
135°C
Power Derating: 40mW/°C @ T
L
> 135°C
Peak operating voltage: 100 Volts
MECHANICAL CHARACTERISTICS
•
•
•
•
•
•
Case: DO-214AC
Terminals: Leads tin plated
Thermal resistance: 25°C/W
Polarity: Cathode indicated by a band
Packaging: Standard 12 mm tape 2500 per 13 inch reel see (EIA
Standard RS-481)
Weight 0.1 gram
DIMENSIONS
INCHES
MILLIMETERS
MIN
MAX
MIN
MAX
.052
.103
1.32
2.62
.160
.180
4.06
4.57
.100
.110
2.54
2.79
.194
.216
4.93
5.49
.078
.115
1.98
2.92
.030
.060
0.76
1.52
--
.005
--
0.13
TYPICAL CURRENT REGULATOR CHARACTERISTICS
5.0
4.0
3.0
2.0
1.0
0
-20
DIM
*A
*B
C
D
E
F
G
Z
K
@ V
K
Forwar
I
P
& Z
S
@
POV
VL @ IL
NOTE * INDICATES MAXIMUM DIMENSION IS
LARGER THAN STANDARD JEDEC CALL OUT.
-60
-80
-100
Revers
-40
Reverse
Forwar
-1.0
0
20
40
60
Anode
80
90
Cathode
100
120
140
-2.0
V
AK
– ANODE CATHODE VOLTAGE (VOLTS)
ISO 9001 CERTIFIED
5/07/99
REV B
SMAJ5283 thru SMAJ5314
Typical Forward Characteristics
ID FORWARD DIODE
CURRENT (Ma)
10
7
5
3
2
1
0.7
0.5
0.3
0.2
0.1
0.1
0.2
0.3
0.5
0.7
1.0
2.0
3.0
5.0
7.0
10.0
20
30
50
70 100
T
J
= 25°C
V
SM
= 100V
(DATA
OBTAINED
FROM PULSE
TESTING)
SMAJ5313
SMAJ5309
SMAJ5305
SMAJ5298
SMAJ5290
V
AK
ANODE- CATHODE VOLTAGE (VOLTS)
Temperature Coefficient
α
IS
- TEMPERATURE
COEFFICIENT (%/C)
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0.2
Range
T
J
= +25°C to +150°C
V
AK
= 25V
∆
I
P
=
α
IS
I
P(Nom)
∆T
J
/100
Typical
0.3
0.4
0.5
0.7
1.0
2.0
3.0
4.0
5.0
I
P
NOMINAL PINCH-OFF CURRENT (mA)
Temperature Coefficient
1.0
α
IS
- TEMPERATURE
COEFFICIENT (%/C)
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0.2
0.3
0.4
0.5
0.7
1.0
2.0
Range
Typical
T
J
= -55°C to +25°C
V
AK
= 25V
∆
I
P
=
α
IS
I
P(Nom)
∆T
J
/100
3.0
4.0
5.0
I
P
NOMINAL PINCH-OFF CURRENT (mA)
SYMBOLS AND DEFINITIONS
I
D
α
IS
I
p
POV
V
K
V
L
V
S
Z
k
Z
S
Diode Current
I
L
Limiting Current 80% of I
P
minimum used to determine Limiting Voltage,
V
L
Current Temperature Coefficient.
V
AK
anode to cathode Voltage
Pinch-off Current: Regulator current at specified Test Voltage, V
S
. I
P
is some times identified as I
S
Peak Operating Voltage: Maximum voltage to be applied to the device.
Knee Impedance test voltage: Specified voltage used to establish Knee Impedance
Limiting Voltage: Measured at I
L
, V
L
, together with Knee ac Impedance, Z
K
, indicates the Knee characteristic of the device
TEST VOLTAGE: Voltage at which I
P
and Z
S
are specified
Knee ac impedance at Test Voltage: To test Z
K
a 90Hz signal V
K
with rms value equal to 10% of test voltage V
K
is superimposed on V
K
: Z
K
=
V
K
/i
K
where i
K
is the resultant ac current due to v
K
. To provide the most constant current from the diode, Z
K
should be as high as possible,
therefore, a minimum value of Z
K
is specified.
AC Impedance at Test Voltage: Specified as a minimum value. To test for Z
S
, a 90 Hz signal V
S
with rms value equal to 10% of test voltage,
V
S
is superimposed on V
S
: Z
S
= v
S
/i
S
where i
S
is the current due to v
S
.
ISO 9001 CERTIFIED
5/07/99
REV B
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