3. A transient suppressor is normally selected according to the Working Peak Reverse Voltage (V
RWM
) which should be equal to or greater
than the DC or continuous peak operating voltage level.
4. V
BR
measured at pulse test current I
T
at ambient temperature of 25°C.
Z
in
V
in
LOAD
V
L
Figure 1. Typical Protection Circuit
http://onsemi.com
2
1SMF16BT1, 1SMF16BT3, 1SMF16BT3G
10,000
t
r
PP, PEAK POWER (WATTS)
1000
100
VALUE (%)
PEAK VALUE − I
RSM
PULSE WIDTH (t
P
) IS DEFINED
AS THAT POINT WHERE THE PEAK
CURRENT DECAYS TO 50%
OF I
RSM
.
t
r
≤
10
ms
100
50
t
P
I
HALF VALUE −
RSM
2
10
1.0
10
100
t
P
, PULSE WIDTH (ms)
1000
10,000
0
0
1
2
t, TIME (ms)
3
4
Figure 2. Pulse Rating Curve
Figure 3. 10 X 1000
ms
Pulse Waveform
100
90
% OF PEAK PULSE CURRENT
80
70
60
50
40
30
20
10
0
0
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT @ T = 25
°
C
A
t
r
PEAK VALUE I
RSM
@ 8
ms
PULSE WIDTH (t
P
) IS DEFINED
AS THAT POINT WHERE THE
PEAK CURRENT DECAY = 8
ms
HALF VALUE I
RSM
/2 @ 20
ms
160
140
120
100
80
60
40
20
0
0
25
50
75
100
125
150
t
P
20
40
t, TIME (ms)
60
80
T
A
, AMBIENT TEMPERATURE (°C)
Figure 4. 8 X 20
ms
Pulse Waveform
Figure 5. Pulse Derating Curve
1
0.7
0.5
DERATING FACTOR
0.3
0.2
0.1
0.07
0.05
0.03
0.02
10
ms
0.01
0.1 0.2
0.5
1
2
5
10
20
50 100
100
ms
PULSE WIDTH
10 ms
CAPACITANCE (pF)
300
250
200
150
1 ms
100
50
0
2
4
6
8
10
12
14
16
REVERSE VOLTAGE (V)
D, DUTY CYCLE (%)
Figure 6. Typical Derating Factor for Duty Cycle
Figure 7. Capacitance versus Reverse Voltage
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3
1SMF16BT1, 1SMF16BT3, 1SMF16BT3G
PACKAGE DIMENSIONS
SOD−123FL
CASE 498−01
ISSUE O
B
L
E
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE MOLD
FLASH.
4. DIMENSIONS D AND J ARE TO BE MEASURED
ON FLAT SECTION OF THE LEAD: BETWEEN 0.10
AND 0.25 MM FROM THE LEAD TIP.
DIM
A
B
C
D
E
H
J
K
L
MILLIMETERS
MIN
MAX
1.50
1.80
2.50
2.90
0.90
1.00
0.70
1.10
0.55
0.95
0.00
0.10
0.10
0.20
3.40
3.80
0
°
8
°
INCHES
MIN
MAX
0.059
0.071
0.098
0.114
0.035
0.039
0.028
0.043
0.022
0.037
0.000
0.004
0.004
0.008
0.134
0.150
0
°
8
°
A
H
C
D
POLARITY INDICATOR
OPTIONAL AS NEEDED
K
L
J
SOLDERING FOOTPRINT*
0.91
0.036
2.36
0.093
4.19
0.165
SOD−123
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
ON Semiconductor
and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone:
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