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SZ1SMB Series
TVS Diodes
Surface Mount > 600W > SZ1SMB Series
Description
The SZ1SMB series is designed to protect voltage
sensitive components from high voltage, high energy
transients. They have excellent clamping capability, high
surge capability, and fast response time. The SZ1SMB
series is supplied in the Littelfuse exclusive, cost-effective,
highly reliable package and is ideally suited for use in
communication systems, automotive, numerical controls,
process controls, medical equipment, business machines,
power supplies and many other industrial/consumer
applications.
Maximum Ratings and Thermal Characteristics
Parameter
Symbol Value
Peak Power Dissipation (Note 1) @ TL =
25°C, Pulse Width = 1 ms
PPK
600
Unit
W
DC Power Dissipation @ TL = 75°C
Measured Zero Lead Length (Note 2)
PD
3.0
W
Derate Above 75°C
40 mW/°C
Thermal Resistance from Junction−to−
Lead
RƟJL
25
°C/W
DC Power Dissipation (Note 3) @ TA =
25°C Derate Above 25°C
Thermal Resistance from Junction–to–
Ambient
PD
RƟJL
0.55
4.4
226
W
mW/°C
°C/W
Forward Surge Current (Note 4) @ TA
= 25°C
IFSM 100
Operating and Storage Temperature
Range
TJ, Tstg
-65 to
+150
A
°C
Stresses exceeding those listed in the Maximum Ratings table may damage the componant.
If any of these limits are exceeded, device functionality should not be assumed, damage may
occur and reliability may be affected.
1. 10/1000 µs, non−repetitive.
2. 1” square copper pad, FR−4 board.
3. FR−4 board, using Littelfuse minimum recommended footprint, as shown in 403A-03
case outline dimensions spec.
4. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, duty cycle = 4 pulses per
minute maximum - For Unidirectional only.
Features
• Working Peak Reverse Voltage Range − 5.0 V to 170 V for
unidirectional, and 10 V to 75 V for bidirectional
• Standard Avalanche Breakdown Voltage Range −
6.7 V to 199 V for uni-directional, 11.7 V to 91.7 V for
bi-directional
• Peak Power − 600 W @ 1.0 ms
• ESD Rating of Class 3 (> 16 kV) per Human Body Model
• Maximum Clamp Voltage @ Peak Pulse Current
• Low Leakage < 5.0 µA Above 10 V
• Intended for UL 497B Type Protection
• Response Time is Typically < 1.0 ns
• Pb-free means 2nd level interconnect is Pb-free and the
terminal finish material is tin(Sn)
(IPC/JEDEC J-STD-609A.01)
• SZ Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements;
AEC−Q101 Qualified and PPAP Capable
Additional Information
Datasheet
Resources
Samples
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/30/18

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TVS Diodes
Surface Mount > 600W > SZ1SMB Series
Functional Diagram
I-V Curve Characteristics (TA = 25°C unless otherwise noted, VF = 3.5 V Max. @ IF (Note 5) = 30 A) (For Unidirectional)
I
V
Uni Directional TVS
Symbol
Parameter
IPP Maximum Reverse Peak Pulse Current
VC Clamping Voltage @ IPP
VRWM
Working Peak Reverse Voltage
IR Maximum Reverse Leakage Current @ VRWM
VBR Breakdown Voltage @ IT
IT On-State Current
IF Maximum Temperature Coefficient of VBR
VF Forward Voltage @ IF
5. 1/2 sine wave (or equivalent square wave), PW = 8.3 ms, non−repetitive duty cycle.
I-V Curve Characteristics (TA = 25°C unless otherwise noted) – For Bidirectional
IPP
VC VBR VRWM IIRT
IIRT VRWM VBR VC
IPP
Symbol
IPP
VC
VRWM
IR
VBR
IT
IF
VF
VF
Parameter
Maximum Reverse Peak Pulse Current
Clamping Voltage @ IPP
Working Peak Reverse Voltage
Maximum Reverse Leakage Current @ VRWM
Breakdown Voltage @ IT
On-State Current
Maximum Temperature Coefficient of VBR
Forward Voltage @ IF
Forward Voltage @ IF
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/30/18

No Preview Available !

TVS Diodes
Surface Mount > 600W > SZ1SMB Series
Electrical Characteristics - For Unidirectional
Device*
SZ1SMB5.0AT3G
SZ1SMB6.0AT3G
SZ1SMB6.5AT3G
SZ1SMB7.0AT3G
SZ1SMB7.5AT3G
SZ1SMB8.0AT3G
SZ1SMB8.5AT3G
SZ1SMB9.0AT3G
SZ1SMB10AT3G
SZ1SMB11AT3G
SZ1SMB12AT3G
SZ1SMB13AT3G
SZ1SMB14AT3G
SZ1SMB15AT3G
SZ1SMB16AT3G
SZ1SMB17AT3G
SZ1SMB18AT3G
SZ1SMB20AT3G
SZ1SMB22AT3G
SZ1SMB24AT3G
SZ1SMB26AT3G
SZ1SMB28AT3G
SZ1SMB30AT3G
SZ1SMB33AT3G
SZ1SMB36AT3G
SZ1SMB40AT3G
SZ1SMB43AT3G
SZ1SMB45AT3G
SZ1SMB48AT3G
SZ1SMB51AT3G
SZ1SMB54AT3G
SZ1SMB58AT3G
SZ1SMB60AT3G
SZ1SMB64AT3G
SZ1SMB70AT3G
SZ1SMB75AT3G
Device
Marking
KE
KG
KK
KM
KP
KR
KT
KV
KX
KZ
LE
LG
LK
LM
LP
LR
LT
LV
LX
LZ
ME
MG
MK
MM
MP
MR
MT
MV
MX
MZ
NE
NG
NK
NM
NP
NR
V
RWM
(Note 6)
Volts
5.0
6.0
6.5
7.0
7.5
8.0
8.5
9.0
10
11
12
13
14
15
16
17
18
20
22
24
26
28
30
33
36
40
43
45
48
51
54
58
60
64
70
75
IR @
VRWM
µA
800
800
500
500
100
50
10
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Breakdown Voltage
VBR @ IT (V) (Note 7)
MIN NOM MAX
6.40 6.7
7.0
6.67 7.02 7.37
7.22 7.6 7.98
7.78 8.19 8.6
8.33 8.77 9.21
8.89 9.36 9.83
9.44 9.92 10.4
10.0 10.55 11.1
11.1 11.7 12.3
12.2 12.85 13.5
13.3 14 14.7
14.4 15.15 15.9
15.6 16.4 17.2
16.7 17.6 18.5
17.8 18.75 19.7
18.9 19.9 20.9
20.0 21.05 22.1
22.2 23.35 24.5
24.4 25.65 26.9
26.7 28.1 29.5
28.9 30.4 31.9
31.1 32.75 34.4
33.3 35.05 36.8
36.7 38.65 40.6
40.0 42.1 44.2
44.4 46.75 49.1
47.8 50.3 52.8
50.0 52.65 55.3
53.3 56.1 58.9
56.7 59.7 62.7
60.0 63.15 66.3
64.4 67.8 71.2
66.7 70.2 73.7
71.1 74.85 78.6
77.8 81.9
86
83.3 87.7 92.1
@ IT
mA
10
10
10
10
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
VC @ IPP
(Note 8)
VC
Volts
9.2
10.3
11.2
12.0
12.9
13.6
14.4
15.4
17.0
18.2
19.9
21.5
23.2
24.4
26.0
27.6
29.2
32.4
35.5
38.9
42.1
45.4
48.4
53.3
58.1
64.5
69.4
72.7
77.4
82.4
87.1
93.6
96.8
103
113
121
IPP
Amps
65.2
58.3
53.6
50.0
46.5
44.1
41.7
39.0
35.3
33.0
30.2
27.9
25.8
24.0
23.1
21.7
20.5
18.5
16.9
15.4
14.2
13.2
12.4
11.3
10.3
9.3
8.6
8.3
7.7
7.3
6.9
6.4
6.2
5.8
5.3
4.9
C Typ.
(Note 9)
pF
2700
2300
2140
2005
1890
1780
1690
1605
1460
1345
1245
1160
1085
1020
965
915
870
790
730
675
630
590
555
510
470
430
400
385
365
345
330
310
300
280
260
245
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/30/18

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TVS Diodes
Surface Mount > 600W > SZ1SMB Series
Electrical Characteristics - For Unidirectional - Continued
Device*
Device
Marking
SZ1SMB85AT3G
SZ1SMB90AT3G
SZ1SMB100AT3G
SZ1SMB110AT3G
SZ1SMB120AT3G
SZ1SMB130AT3G
SZ1SMB150AT3G
SZ1SMB160AT3G
SZ1SMB170AT3G
NV
NX
NZ
PE
PG
PK
PM
PP
PR
V
RWM
(Note 6)
Volts
85
90
100
110
120
130
150
160
170
IR @
VRWM
µA
55.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Breakdown Voltage
VBR @ IT (V) (Note 7)
MIN NOM MAX
94.4 99.2
104
100 105.5 111
111 117 123
122 128.5 135
133 140 147
144 151.5 159
167 176 185
178 187.5 197
189 199 209
@ IT
mA
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
VC @ IPP
(Note 8)
VC
Volts
137
146
162
177
193
209
243
259
275
IPP
Amps
4.4
4.1
3.7
3.4
3.1
2.9
2.5
2.3
2.2
6. A transient suppressor is normally selected according to the working peak reverse voltage (VRWM), which should be equal to or greater than the DC or continuous peak
operating voltage level.
7. VBR measured at pulse test current IT at an ambient temperature of 25°C.
8. Surge current waveform per Figure 1 and derate per Figure 3 of the General Data − 600 W at the beginning of this group.
9. Bias Voltage = 0 V, F = 1 MHz, TJ = 25°C
C Typ.
(Note 9)
pF
220
210
190
175
160
150
135
125
120
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/30/18

No Preview Available !

TVS Diodes
Surface Mount > 600W > SZ1SMB Series
Electrical Characteristics - For Bidirectional
Device*
Device
Marking
SZ1SMB10CAT3G
SZ1SMB11CAT3G
SZ1SMB12CAT3G
SZ1SMB13CAT3G
SZ1SMB14CAT3G
SZ1SMB15CAT3G
SZ1SMB16CAT3G
SZ1SMB17CAT3G
SZ1SMB18CAT3G
SZ1SMB20CAT3G
SZ1SMB22CAT3G
SZ1SMB24CAT3G
SZ1SMB26CAT3G
SZ1SMB28CAT3G
SZ1SMB30CAT3G
SZ1SMB33CAT3G
SZ1SMB36CAT3G
SZ1SMB40CAT3G
SZ1SMB43CAT3G
SZ1SMB45CAT3G
SZ1SMB48CAT3G
SZ1SMB51CAT3G
SZ1SMB54CAT3G
SZ1SMB58CAT3G
SZ1SMB60CAT3G
SZ1SMB64CAT3G
SZ1SMB75CAT3G
KXC
KZC
LEC
LGC
LKC
LMC
LPC
LRC
LTC
LVC
LXC
LZC
MEC
MGC
MKC
MMC
MPC
MRC
MTC
MVC
MXC
MZC
NEC
NGC
NKC
NMC
NRC
V
RWM
(Note 6)
Volts
10
11
12
13
14
15
16
17
18
20
22
24
26
28
30
33
36
40
43
45
48
51
54
58
60
64
75
IR @
VRWM
µA
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Breakdown Voltage
VBR @ IT (V) (Note 7)
MIN NOM MAX
11.1
11.69
12.27
12.2 12.84 13.5
13.3 14.00 14.7
14.4 15.16 15.9
15.6 16.42 17.2
16.7 17.58 18.5
17.8 18.74 19.7
18.9 19.90 20.9
20.0 21.06 22.1
22.2 23.37 24.5
24.4 25.69 27.0
26.7 28.11 29.5
28.9 30.42 31.9
31.1 32.74 34.4
33.3 35.06 36.8
36.7 38.63 40.6
40.0 42.11 44.2
44.4 46.74 49.1
47.8 50.32 52.8
50.0 52.63 55.3
53.3 56.11 58.9
56.7 59.69 62.7
60.0
63.16
66.32
64.4
67.79
71.18
66.7
70.21
73.72
71.1
74.84
78.58
83.3
91.65
92.07
@ IT
mA
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
6. A transient suppressor is normally selected according to
greater than the DC or continuous peak operating voltage
the working
level.
peak
reverse
voltage
(VRWM),
which
should
be
equal
to
or
7. VBR measured at pulse test current IT at an ambient temperature of 25°C.
8. Surge current waveform per Figure 1 and derate per Figure 3 of the General Data − 600 Watt at the beginning of this group.
9. Bias Voltage = 0 V, F = 1 MHz, TJ = 25°C
VC @ IPP
(Note 8)
VC
Volts
IPP
Amps
17.0 35.3
18.2 33.0
19.9 30.2
21.5 27.9
23.2 25.8
24.4 24.0
26.0 23.1
27.6 21.7
29.2 20.5
32.4 18.5
35.5 16.9
38.9 15.4
42.1 14.2
45.4 13.2
48.4 12.4
53.3 11.3
58.1 10.3
64.5 9.3
69.4 8.6
72.2 8.3
77.4 7.7
82.4 7.3
87.1 6.9
93.6 6.4
96.8 6.2
103 5.8
121 4.9
C Typ.
(Note 9)
pF
805
740
680
630
590
555
520
490
465
425
390
366
330
310
290
265
245
220
210
200
190
175
170
155
150
145
125
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/30/18