SA28A Datasheet PDF - Microsemi Corporation
| Part Number | SA28A | |
| Description | 5.0 thru 170 volts 500 Watts Transient Voltage Suppressors | |
| Manufacturers | Microsemi Corporation | |
| Logo |  |
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There is a preview and SA28A download ( pdf file ) link at the bottom of this page. Total 5 Pages | ||
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8700 E. Thomas Road
Scottsdale, AZ 85252
Phone: (480) 941-6300
Fax: (480) 947-1503
FEATURES:
• ECONOMICAL SERIES
• AVAILABLE IN BOTH UNIDIRECTIONAL AND BI-DIRECTIONAL CONSTRUCTION
• 5.0 TO 170 STAND-OFF VOLTAGE AVAILABLE
• 500 WATTS PEAK PULSE POWER DISSIPATION
• QUICK RESPONSE
DESCRIPTION:
This Transient Voltage Suppressor is an economical, molded, commercial product
used to protect voltage sensitive components from destruction or partial degradation.
The response time of their clamping action is virtually instantaneous (1 x 10-12
seconds) and they have a peak pulse power rating of 500 watts for 1 ms as depicted in
Figure 1 and 2. Microsemi also offers a great variety of other Transient Voltage
Suppressor's to meet higher and lower power demands and special applications.
MAXIMUM RATINGS:
Peak Pulse Power Dissipation at 25°C: 500 Watts
Steady State Power Dissipation: 2.5 Watts at TL = +75°C
3/8" Lead Length
tclamping (0 volts to BV Min.):
Unidirectional <1x10-12 Seconds: Bi-directional <5x10-9 Seconds.
Operating and Storage Temperature: -55° to +175°C
TYPICAL CHARACTERISTIC CURVES
100
75
Peak Power
(Single pulse)
50
Continuous
Average Power
Lead Length = 3/8"
25
0 50 100 150 175
TL LEAD TEMPERATURE °C
FIGURE 1
DERATING CURVE
Peak Value Ipp
100
50
Pulse Time Duration
(tp) is Defined as that
point where Ip decays
to 50% of
I surge
12
34
TIME (t) IN MILLISECONDS
FIGURE 2
PULSE WAVEFORM FOR
EXPONENTIAL SURGE
SA5.0
thru
SA170A
5.0 thru 170 volts
500 Watts
Transient Voltage
Suppressors
DO-41
2 x ∅.032 ± .002
[.81 ± .05]
∅ .107
[2.72]
max.
2 X1.10
[27.94]
MIN.
.205
[5.21]
MAX.
POLARITY
Mark {cathode}
NOTE: DIMENSIONS IN [ ] =MILLIMETERS
MECHANICAL
CHARACTERISTICS
CASE: Void free transfer
molded thermosetting
plastic.
FINISH: Readily solderable.
POLARITY: Band denotes
cathode. Bi-directional not
marked.
WEIGHT: 0.7 gram (Appx.).
MOUNTING POSITION: Any
MSC1400.PDF 03-20-00
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10000
1000
MEASURED AT
ZERO BIAS
100
MEASURED AT
STANDOFF
VOLTAGE
10
0 10 100 1000
V(BR) - BREAKDOWN VOLTAGE - VOLTS
FIGURE 3
TYPICAL CAPACITANCE VS
BREAKDOWN VOLTAGE
70
50
30
20
TC = 25ºC
10
7.0
5.0
3.0
2.0
1.0
0.7
0.5
0.3
0.2
0.1
0.1
Ipp 1.0
0.5
IMPULSE
EXPONENTIAL
DECAY
tw
Ipp
HALF
SINE
tw
t p t w = .7tP
Ipp
SQUARE
tw
CURRENT WAVE FORM
0.2 0.5 1.0 2.0
5.0 10 20
50 100 200
1000
tw - Pulse Width µs
FIGURE 4
PEAK PULSE POWER VS. PULSE TIME
SA5.0
thru
SA170A
10000
MSC1400.PDF 03-20-00
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for SA28A electronic component. |
| Information | Total 5 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ SA28A.PDF Datasheet ] | |
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