Surface Mount Transient Voltage Suppressors
Maximum Maximum
Maximum
Reverse
Leakage IR
@VRWM
Breakdown
Reverse
Test
Current
IT
Clamping
Voltage
VC
Peak
Pulse
Current
IPP (A)
Part Number
Marking
Voltage VBR (V)
@IT
Stand-Off
Voltage
VRWM(V)
(mA)
Uni
Bi
Uni
Bi
YZT
ZE
MIN
MAX
@IPP (V)
(μA)
SMAJ51A-AT SMAJ51CA-AT CZT
SMAJ54A-AT SMAJ54CA-AT RET
51
54
56.70
60.00
64.40
66.70
71.10
77.80
83.30
86.70
94.40
100.0
100.0
111.0
122.0
133.0
144.0
167.0
178.0
189.0
201.0
211.0
224.0
233.0
391.0
447.0
492.0
62.70
66.30
71.20
73.70
78.60
86.00
92.10
95.80
104.0
111.0
111.0
123.0
135.0
147.0
159.0
185.0
197.0
209.0
222.0
234.0
247.0
258.0
432.0
494.0
543.0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
82.4
87.1
4.9
4.6
4.3
4.1
3.9
3.6
3.3
3.2
2.9
2.8
2.5
2.3
2.1
1.9
1.7
1.6
1.5
1.4
1.3
1.1
1.0
0.8
0.7
0.6
0.6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SMAJ58A-AT SMAJ58CA-AT RGT ZGT
SMAJ60A-AT SMAJ60CA-AT RKT ZKT
58
93.6
60
96.8
SMAJ64A-AT SMAJ64CA-AT RMT ZMT
SMAJ70A-AT SMAJ70CA-AT RPT ZPT
64
103.0
113.0
121.0
126.0
137.0
146.0
162.0
177.0
193.0
209.0
243.0
259.0
275.0
292.0
324.0
356.0
405.0
486.0
567.0
648.0
713.0
70
SMAJ75A-AT SMAJ75CA-AT RRT ZRT
75
SMAJ78A-AT SMAJ78CA-AT RTT
SMAJ85A-AT SMAJ85CA-AT RVT
SMAJ90A-AT SMAJ90CA-AT RXT
SMAJ100A-AT SMAJ100CA-AT RZT
SMAJ110A-AT SMAJ110CA-AT SET
ZTT
ZVT
ZXT
ZZT
VET
78
85
90
100
110
120
130
150
160
170
180
200
220
250
300
350
400
440
SMAJ120A-AT SMAJ120CA-AT SGT VGT
SMAJ130A-AT SMAJ130CA-AT SKT VKT
SMAJ150A-AT SMAJ150CA-AT SMT VMT
SMAJ160A-AT SMAJ160CA-AT SPT VPT
SMAJ170A-AT SMAJ170CA-AT SRT VRT
SMAJ180A-AT SMAJ180CA-AT STT VTT
SMAJ200A-AT SMAJ200CA-AT SWT VWT
SMAJ220A-AT SMAJ220CA-AT SXT
SMAJ250A-AT SMAJ250CA-AT SZT
VXT
VZT
SMAJ300A-AT SMAJ300CA-AT DET HET
SMAJ350A-AT SMAJ350CA-AT DGT HGT
SMAJ400A-AT SMAJ400CA-AT DKT HKT
SMAJ440A-AT SMAJ440CA-AT DKT HKT
Note:
(1) Add suffix ' CA ' after part number to specify Bi-directional devices
(2) Suffix 'A ' denotes 5% tolerance device.
@ UN Semiconductor Co., Ltd. 2019
Specifications are subject to change without notice.
Please refer to www.unsemi.com.tw for current information.
Revision December 19, 2019
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