SM8S SERIES

SM8S SERIES
SURFACE MOUNT
TRANSIENT VOLTAGE SUPPRESSOR
Stand-off Voltage: 10 to 43 Volts
Peak Pulse Power: 6600W(10/1000µs)
: 5200W(10/10,000µs)
D2PAK
0.189(4.8)
0.137(4.4)
0.055(1.4)
0.047(1.2)
FEATURES :
0.357(9.1)
0.418(10.6)
0.378(9.60)
* Excellent clamping capability
* Low incremental surge resistance
* Fast response time : typically less
then 1.0 ps from 0 volt to VBR(min.)
* Pb / RoHS Free
0.110(2.8)
0.236(6.0)
0.197(5.0)
0.055(1.4)
0.039(1.0)
0.035(0.9)max.
0.108(2.75)
0.092(2.35)
0.108(2.75)
0.092(2.35)
MECHANICAL DATA
2
* Case : D PAK(TO-263)
* Epoxy : UL94V-O rate flame retardant
* Lead : Axial lead solderable per MIL-STD-202,
Method 208 guaranteed
* Polarity : Heatsink is Anode
* Mounting position : Any
* Weight : 1.7 grams (approximately)
0.335(8.5)
0.409(10.4)
0.387(9.80)
0.026(0.7)
0.011(0.3)
0.33(8.38)
0.42(10.66)
0.24(6.096)
0.63(17.02)
Dimensions in inches and ( millimeters )
Maximum Ratings and Thermal Characteristics (TC = 25°C unless otherwise noted)
Rating
Symbol
Peak Pulse Power Dissipation with 10/1000µs waveform
PPPM
Peak Forward Surge Current,
6600
Unit
W
5200
10/10,000µs waveform
Steady State Power Dissipation
Value
PD
8.0
W
IFSM
700
A
RθJC
0.9
°C/W
TJ, TSTG
- 55 to + 175
°C
8.3ms Single Half Sine-Wave
Typical Thermal Resistance Junction to Case
Operating and Storage Temperature Range
Page 1 of 3
Rev. 01 : April 27, 2005
ELECTRICAL CHARACTERISTICS ( Ta = 25°C)
Min.
Max.
IT
(mA)
VRWM
(V)
Maximum
Reverse
Leakage
@ VRWM
ID
(µA)
SM8S10
11.1
13.6
5.0
10
15
250
351
18.8
SM8S10A
11.1
12.3
5.0
10
15
250
388
17.0
SM8S11
12.2
14.9
5.0
11
10
150
328
20.1
SM8S11A
12.2
13.5
5.0
11
10
150
363
18.2
SM8S12
13.3
16.3
5.0
12
10
150
300
22.0
SM8S12A
13.3
14.7
5.0
12
10
150
332
19.9
SM8S13
14.4
17.6
5.0
13
10
150
277
23.8
SM8S13A
14.4
15.9
5.0
13
10
150
307
21.5
SM8S14
15.6
19.1
5.0
14
10
150
256
25.8
SM8S14A
15.6
17.2
5.0
14
10
150
284
23.2
SM8S15
16.7
20.4
5.0
15
10
150
245
26.9
SM8S15A
16.7
18.5
5.0
15
10
150
270
24.4
SM8S16
17.8
21.8
5.0
16
10
150
229
28.8
SM8S16A
17.8
19.7
5.0
16
10
150
254
26.0
SM8S17
18.9
23.1
5.0
17
10
150
216
30.5
SM8S17A
18.9
20.9
5.0
17
10
150
239
27.6
SM8S18
20.0
24.4
5.0
18
10
150
205
32.2
SM8S18A
20.0
22.1
5.0
18
10
150
226
29.2
SM8S20
22.2
27.1
5.0
20
10
150
184
35.8
SM8S20A
22.2
24.5
5.0
20
10
150
204
32.4
SM8S22
24.4
29.8
5.0
22
10
150
168
39.4
SM8S22A
24.4
26.9
5.0
22
10
150
168
35.5
SM8S24
26.7
32.6
5.0
24
10
150
153
43.0
SM8S24A
26.7
29.5
5.0
24
10
150
170
38.9
SM8S26
28.9
35.3
5.0
26
10
150
142
46.6
SM8S26A
28.9
31.9
5.0
26
10
150
157
42.1
SM8S28
31.1
38.0
5.0
28
10
150
132
50.1
SM8S28A
31.1
34.4
5.0
28
10
150
145
45.4
SM8S30
33.3
40.7
5.0
30
10
150
123
53.5
SM8S30A
33.3
36.8
5.0
30
10
150
136
48.4
SM8S33
36.7
44.9
5.0
33
10
150
112
59.0
SM8S33A
36.7
40.6
5.0
33
10
150
124
53.3
SM8S36
40.0
48.9
5.0
36
10
150
103
64.3
SM8S36A
40.0
44.2
5.0
36
10
150
114
58.1
SM8S40
44.4
54.3
5.0
40
10
150
92
71.4
SM8S40A
44.4
49.1
5.0
40
10
150
102
64.5
SM8S43
47.8
58.4
5.0
43
10
150
86
76.7
SM8S43A
47.8
52.8
5.0
43
10
150
95
69.4
Breakdown Voltage @ IT
TYPE
VBR (V)
Reverse
Stand off
Voltage
Maximum
Reverse
Leakage
@ VRM
ID (TC=175°C)
Maximum
Clamping
Voltage @ IPPM
(µA)
Maximum
Peak Pulse
Current
at 10/1000µs
IPPM
(A)
VC
(V)
Notes:
(1) For all types maximum VF = 1.8V at IF = 100A measured on 8.3ms single half sine-wave or equivalent square wave,
duty cycle = 4 pulses per minute maximum
(2) " SM S " will be omitted in marking on the diode.
Page 2 of 3
Rev. 01 : April 27, 2005
RATING AND CHARACTERISTIC CURVES ( SM8S SERIES )
FIG. 1 - POWER DERATING CURVE
FIG. 2 - LOAD DUMP POWER CHARACTERISTICS
(10ms EXPONENTIAL WAVEFORM)
6,000
LOAD DUMP POWER (WATTS)
POWER DISSIPATION (WATTS)
8
6
4
2
5,000
4,000
3,000
2,000
1,000
0
0
0
25
50
75
100
125
150
175
200
25
50
CASE TEMPERATURE (°C)
Ta=25 °C
Pulse Width (td) is defined
as that point where the peak
current decays to 50%
of IPP
Half Value - IPP
2
50
10x1000 µs Waveform
as defined by R.E.A.
tp
0
0
10
125
150
175
FIG. 4 - REVERSE POWER CAPABILITY
REVERSE SURGE POWER (WATTS)
PEAK PULSE CURRENT - %
Peak Value
IPP
100
100
CASE TEMPERATURE (°C)
FIG. 3 - PULSE WAVEFORM
tr = 10µs
75
20
30
40
10,000
1,000
10
t, TIME(ms)
100
PULSE WIDTH (ms) - 1/2 IPP EXPONENTIAL
WAVEFORM
TRANSIENT THERMAL IMPEDANCE (°C/W)
FIG. 5 - TYPICAL TRANSIENT THERMAL IMPEDANCE
100
RθJA
10
RθJC
1
0.1
0.01
0.01
0.1
1
10
100
t, PULSE TIME(sec.)
Page 3 of 3
Rev. 01 : April 27, 2005