ESD static protection components

ESD electrostatic protection

ESD electrostatic protection

Information of ESD
Electrostatic Discharged Protection Devices, referred to as ESD. It is mainly used to protect the Electrostatic Discharge of communication interface .

The reason of Electrostatic Discharge:

a. Two substances via the contact friction and loss of electrons or the electron, the charge band (no flow) termed static;

b. Due to switch electricity or lightning induced surge also indirect causes static electricity;

c. Temperature and humidity affect the turboelectric charged, at less than 45℃, it will produce higher humidity greater voltage more than in 55℃, damaging also relatively large.

The selection tips of ESD 

1. The Vrwm is bigger or equal to the circuit working voltage is better;

2. The Cp of ESD is confirmed by the rate of data port, the data transfer more faster ,the Cp of ESD should be more smaller;

3. Selecting suitable Ipp for your circuit, the suitable Vc for your circuit and power=Ipp*Vc*power factor;                       

4. According to the PCB to select package (1-channel or multi-channels).

Part Number Vrwm(V)
All
1
1.5
1.8
12月5日
15, 24
2.5
2.8
3
3.3
4
4.5
5
5.4
6
7
8
11
12
15
18
24
26.7
27
30
33
36
40
48
100
200
250
5V
70
7月12日
80
85
90
Vbr(V)
All
-
13.3/6
18.5, 27.8
2.3
2.5
2.7
2.9
3
3.2
3.5
3.6
3.7
3.8
4
4.1
4.2
4.3
4.5
4.7
4.8
4.9
5
5.4
5.5
5.6
5.7
5.8
6
6.1
6.2
6.3
6.4
6.5
6.8
7
7.1
7.5
7.8
8
8.2
8.5
9
9.5
12
12.6
13
13.3
14
14.2
14.5
16
16.5
16.7
17
17.5
18
18.5
19
19.5
19.6
22
25
25.5
26.5
26.7
27
28
28.5
30
30.5
31
33.3
36.7
37
38
40
42
45
48
50
250
450
6V
7.5/13.3
70
85
Vc(V)
All
-
1.5
1.8
10月28日
12V
12月19日
2.5
25, 40
3
3.5
4
4.3
4.5
5
5.5
5.8
6
6.3
6.5
6.7
6.8
7
7.5
8
8.4
8.5
8.7
9
9.4
9.5
9.8
10
10.9
11
11.6
12
12.9
13
13.4
13.9
14
15
15.3
16
17
18
18.5
18.6
19
20
20.5
22
23
24
25
26
28
30
33
34
35
36
37
38
40
42
42.4
43
45
46.1
48
50
53
55
60
62
65
75
9.8/12
Cj(pF)
All
0.05
0.1
0.15
0.17
0.18
0.2
0.26
0.3
0.34
0.35
0.4
0.45
0.5
0.6
0.65
0.7
0.8
0.83
0.9
1
1.2
1.5
110/0.45
2
2.5
3
3.5
3.8
4
4.5
5
6
7
8
8.3
8.5
9
10
10.3
11
12
13
15
16.8
17
20
23
24
25
250/0.45
27
28
30
32
34
35
40
42
45
48
50
52
55
56
60
65
68
70
75
80
85
90
100
110
120
135
145
150
160
168
195
200
230
240
250
300
325
350
400
450
480
500
550
740
800
900
960
1000
1500
2800
Ppp(W)
All
-
14
20
25
28
30
35
36
40
45
50
51
55
56
60
70
75
80
90
92
100
102
125
130
140
150
160
161
162
174
180
200
210
216
240
250
260
270
280
300
310
320
340
350
360
400
420
450
460
480
500
600
650
700
800
1000
1122
1300
1425
1450
1480
1500
1600
1610
1620
1650
1700
1800
2000
2100
350W
450/100
5400
5500
6000
6500
6900
Inner Diagram Data sheet
RCLAMP0531Z 5 6.5 12 0.26 130 RCLAMP0531Z
RCLAMP0531Z
ULC0811CDNQ 8 9.5 18 0.3 90 ULC0811CDNQ
ULC0811CDNQ
ULC0142CDN Snap-back 1 4 6 0.65 36 ULC0142CDN Snap-back
ULC0142CDN Snap-back
ULC3324P10LV Snap-back 3.3 7.1 1.5 0.45 100 ULC3324P10LV Snap-back
ULC3324P10LV Snap-back
ULC3304P10LV 3.3 7.5 9 0.34 40 ULC3304P10LV
ULC3304P10LV
ULC01521CVL 5 5.8 6 0.3 60 ULC01521CVL
ULC01521CVL
LM-AZ4512-01F 12 14.5 18 400 1800 LM-AZ4512-01F
LM-AZ4512-01F
LM-AZ9712-01F 12 14.5 18 400 1800 LM-AZ9712-01F
LM-AZ9712-01F
LM114231 12 14.5 18 400 1700 LM114231
LM114231
ULC2411CDNH 24 26.7 5 0.5 40 ULC2411CDNH
ULC2411CDNH
ESD0565T6 5 6 10 8.3 25 ESD0565T6
ESD0565T6
USMS05C 5 6 10 32 100 USMS05C
USMS05C
5 6 11 0.3 30
SMC36LVQ 36 38 50 3 250 SMC36LVQ
SMC36LVQ
LM-RClAMP1011ZC 1 2.9 3 14 LM-RClAMP1011ZC
LM-RClAMP1011ZC
LM-ESD9B5.0ST5G 5 5.6 18.6 15 150 LM-ESD9B5.0ST5G
LM-ESD9B5.0ST5G
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