Silicon Avalanche Diodes
600W Surface Mount Transient Voltage Supressors
SMBJ Series
ELECTRICAL SPECIFICATION @ Tamb 25°C
Part
Number
Uni-Polar
Device
Code
Uni-Polar
Part
Number
Bi-Polar
Device
Code
Bi-Polar
‘C’ or ‘CA’
Version
BS
BT
BU
BV
BW
BX
BY
BZ
CD
CE
CF
CG
CH
CK
CL
®
Reverse
Stand Off
Voltage
V
R
(Volts)
18.0
18.0
20.0
20.0
22.0
22.0
24.0
24.0
26.0
26.0
28.0
28.0
30.0
30.0
33.0
Breakdown
Voltage
V
BR
(Volts) @
I
T
MIN
20.00
20.00
22.20
22.20
24.40
24.40
26.70
26.70
28.90
28.90
31.10
31.10
33.30
33.30
36.70
MAX
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
(mA)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Maximum
Reverse
Leakage
I
R
@ V
R
(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
Maximum
Clamping
Voltage
V
C
@
I
PP
(Volts)
32.2
29.2
35.8
32.4
39.4
35.5
43.0
38.9
46.6
42.1
50.0
45.4
53.5
46.6
59.0
Maximum
Peak Pulse
Current
I
PP
(A)
18.6
20.5
16.7
18.5
15.2
16.9
14.0
15.4
12.4
14.2
12.0
13.2
11.2
12.4
10.2
SMBJ18*
SMBJ18A*
SMBJ20
SMBJ20A
SMBJ22
SMBJ22A
SMBJ24
SMBJ24A
SMBJ26*
SMBJ26A*
SMBJ28
SMBJ28A
SMBJ30
SMBJ30A
SMBJ33*
SMBJ33A*
SMBJ36*
SMBJ36A
SMBJ40
SMBJ40A
SMBJ43
SMBJ43A
SMBJ45
SMBJ45A
SMBJ48
SMBJ48A
SMBJ51
SMBJ51A
SMBJ54
SMBJ54A
SMBJ58
LS
LT
LU
LV
LW
LX
LY
LZ
MD
ME
MF
MG
MH
MK
ML
SMBJ18C
SMBJ18CA
SMBJ20C
SMBJ20CA
SMBJ22C*
SMBJ22CA*
SMBJ24C*
SMBJ24CA*
SMBJ26C
SMBJ26CA
SMBJ28C
SMBJ28CA
SMBJ30C
SMBJ30CA
SMBJ33C
MM
MN
MP
MQ
MR
MS
MT
MU
MV
MW
MX
MY
MZ
ND
NE
NF
SMBJ33CA
SMBJ36C*
SMBJ36CA*
SMBJ40C
SMBJ40CA
SMBJ43C
SMBJ43CA
SMBJ45C
SMBJ45CA
SMBJ48C
SMBJ48CA
SMBJ51C*
SMBJ51CA*
SMBJ54C
SMBJ54CA
SMBJ58C
CM
CN
CP
CQ
CR
CS
CT
CU
CV
CW
CX
CY
CZ
DD
DE
DF
33.0
36.0
36.0
40.0
40.0
43.0
43.0
45.0
45.0
48.0
48.0
51.0
51.0
54.0
54.0
58.0
36.70
40.00
40.00
44.40
44.40
47.80
47.80
50.00
50.00
53.30
53.30
56.70
56.70
60.00
60.00
64.40
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
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
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
53.3
64.3
58.1
71.4
64.5
76.7
69.4
80.3
72.7
85.5
77.4
91.1
82.4
96.3
87.1
103.0
11.3
9.3
10.3
8.4
9.3
7.8
8.6
7.5
8.3
7.0
7.7
6.6
7.3
6.2
6.9
5.8
Note: Non ‘A’ devices have higher clamping voltage. Add suffix ‘C’ to denote bi-polar devices. V
BR
max not quoted.
1. For Bi-directional devices having V
R
of 10 volts and below, the I
R
limit is doubled.
2. For Uni-directional devices V
F
= 3.5 Volts max at I
F
= 50A, 300 µS square wave pulse.
* Preferred voltages.
270
w w w. l i t t e l f u s e . c o m
LITTELFUSE [ LITTELFUSE ]
