WEITRON SAC18

SAC 5.0 thru SAC 50
Low Capacitance Tranient Voltage Suppressor
Feature:
* Plastic package has underwriters laboratory
Flammability classification 94V- 0.
* Glass passivated junction.
* 500w peak pulse power capability with a 10/100 us waveform
Repetition rate(duty cycle):0.01 %.
* Excellent clamping capability.
* Low incremental surge resistance.
* Fast response time: t _ 1.0 ns @ 0 V to V (BR) (typ).
* Ideal for data line applications.
* High temperature soldering guaranteed: 265 C/10sec, 0.375"(9.5mm)
lead length, 51bs, (2.3kg)tension.
Peak Pulse Power
500 Watts
Sand-off Voltage
5.0 to 50 Volts
_
DO-15
(DO-204AC)
Mechanical Data:
* Case: JEDEC DO-15 molded plastic over a passivated junction.
* Terminal: Solder plated axial leads solderable per.
MIL-STD-750, method 2026
* Polarity: Color band denotes positive end (cathode).
* Mounting position: Any.
* Weight: 0.015 Ounce, 0.4 gram.
Schematic
Diode
TVS
Unit: mm
DO-15 Outline Dimensions
Axial Device
A
Dim
DO-15
Min
25.4
WEITRON
http://www.weitron.com.tw
C
B
Max
-
Min
5.8
Max
7.6
Min
0.71
D
Max
0.86
Min
2.6
Max
3.6
SAC 5.0 thru SAC 50
Maximum Rating(TA=25 C Unless otherwise noted)
Symbol
Characteristic
Value
Units
Peak Pulse Power Disspation with a 10/1000 us waveform (1)
PPPM
Minimum
500
W
Steady State Power Disspation at TL=75 C with lead lenghts
or 0.375"(9.5mm)
PM(AV)
3
W
Peak Pulse Power Surge Current with a 10/1000 us
waveform (1) FIG3.
I PPM
See Table 1
A
Operation Junction and Storage Temperature Range
TJ ,TSTG
-55 to + 175
C
Note:
1. Non-repetitive current pulse, per FIG3. and derated above TA= 25 C per FIG2.
Electrical Characteristics(TA=25 C Unless otherwise noted)
MAXIMUM
BREAKDOWN
PART STANDOFF VOLTAGE
NUMBER VOLTAGE AT I T =1.0mA
V(BR)
VWM
(V)
(V)
SAC5.0
SAC6.0
SAC7.0
SAC8.0
SAC8.5
SAC10
SAC12
SAC15
SAC18
SAC22
SAC26
SAC30
SAC36
SAC45
SAC50
5.00
6.00
7.00
8.00
8.50
10.00
12.00
15.00
18.00
22.00
26.00
30.00
36.00
45.00
51.00
WEITRON
http://www.weitron.com.tw
7.60
7.90
8.33
8.89
9.44
11.10
13.30
16.70
20.00
24.40
28.90
33.30
40.00
50.00
55.50
MAXIMUM MAXIMUM MAXIMUM MAXIMUM WORKING
PEAK
INVERSE
REVERSE CLAMPING
JUNCTION
PULSE
LEAKAGE VOLTAGE
CAPACITANCE BLOCKING
CURRENT AT 0 VOLTS VOLTAGE
AT
AT VWM
Ipp=5.0A
PER FIG.3
VWIB
I R (µA)
(pF)
Ipp (A)
(V)
Vc (V)
300
10.0
44.0
75
50
11.2
41.0
75
300
50
12.6
38.0
75
300
50
13.4
36.0
75
100
50
14.0
34.0
75
50
50
16.3
29.0
75
5
50
19.0
25.0
75
5
50
23.6
20.0
75
5
50
28.8
15.0
75
5
50
35.4
14.0
75
5
50
42.3
11.1
75
5
50
48.6
10.0
75
5
50
60.0
8.6
75
5
50
77.0
6.8
150
5
50
88.0
5.8
150
5
50
PEAK
INVERSE
BLOCKING INVERSE
LEAKAGE BLOCKING
CURRENT VOLTAGE
VPIB
VWIB
(V)
I IB (mA)
1.0
100
1.0
100
1.0
100
100
1.0
1.0
100
1.0
100
1.0
100
1.0
100
1.0
100
100
1.0
1.0
100
100
1.0
1.0
100
1.0
200
1.0
200
PPPM ,Peak Pulse Power(kw)
FIG.1- PEAK PULSE POWER RATING CURVE
30
Non-repetitive Pulse
Waveform shown in Fig.3
TA=250C
10
Impulse
Exponential
Decay
PPK". 5"
td
1.0
Half Sine
PPK
td
td=7tp
Square
PPK
td
CurrentWaveform
0.1
0.1 s
100 s
10 s
1.0 s
1.0ms
10ms
Percenatage of Rated Power(100%)
SAC 5.0 thru SAC 50
FIG.2- PULSE DERATING CURVE
100
Average Power
75
Peak Power
(single pulse)
50
25
0
0
50
100
150
175
T L , Lead Temperature( C)
tp, Pulse Width, (sec.)
I PPM , Peak Pulse Current, % IPSM
FIG. 4 - AC Line Protection Application
FIG.3- PULSE WAVEFORM
150
Tj=250C
Pulse Width (td)
is defined sa the point
where the peak current
decays to 50% of lPPM
tr=10 sec.
Peak Value
lPPM
100
Low Capacitance
TVS
HALF VALUE - IPP
lPPM
2
50
10/1000 sec. Waveform
as defined by R.E.A.
td
0
0
1.0
2.0
t-Time(ms)
3.0
4.0
Application Note:
in parallel,opposite in polarity as shown in circuit for AC
signal line protection
WEITRON
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Device must be used with two units