ESD static protection components

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 12/5 2.5 2.8 3 3.3 4.5 5 6 7 7/12 8 11 12 15 18 24 26.7 36 48 70 Filter Reset	Vbr(V) All 13.3/6 2.7 3 3.5 3.7 3.8 4.0 4 4.2 4.3 4.5 4.7 4.8 4.9 5 5.4 5.5 5.6 5.8 6 6.1 6.2 6.3 6.5 6.8 7.2 7.5 7.5/13.3 8 8.2 8.5 9 12.6 13 13.3 14 14.2 16 16.5 16.7 17 18.5 19.6 20 25 25.5 26.5 26.7 27 28.5 37 40 42 50 85 Filter Reset	Vc(V) All - 1.5 10/28 4.5 5 5.5 5.8 6 6.5 6.7 6.8 7 7.0 7.5 8 8.4 8.5 9 9.0 9.3 9.5 9.8 10 11 11.6 12 12.5 12.9 13 13.4 14 15 15.3 16 16.5 17 18 18.5 18.9 19 19/12 20 22 24 25 26 28 29 30 34 35 37 38 40 42 43 53 55 60 62 70 9.8/12 Filter Reset	Cj(pF) All 0.15 0.2 0.22 0.26 0.3 0.35 0.4 0.45 0.5 0.6 0.7 0.8 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 8.5 9 10 10.3 12 13 15 18 20 24 25 27 30 34 35 40 45 48 50 52 55 57 60 65 68 70 75 80 90 100 110 120 150 168 195 200 250 250/0.45 300 350 450 480 500 550 650 800 1500 2800 Filter Reset	Ppp(W) All 20 35 40 50 51 56 60 70 75 80 90 92 100 102 110 125 150 174 180 200 240 250 260 270 280 300 310 315 320 340 350 360 400 420 450 460 500 600 650 800 1000 1280 1300 1425 1450 1480 1500 1600 1610 1620 1650 1875 2000 4000 450/100 5400 5500 6500 Filter Reset
ESD3321C	3.3	3.5	8	18	80
ESDA3306P6	3.3	4.5	8.5	9	20
ESDA0506P6	5	6	9.8	8	20
LC0504PL6	5	6	10	0.8	125
ULC0321S	3.3	6.3	-	0.2	51
ULC0321CDNH	3.3	8	5	0.5	35
ULC0521CT	5	5.8	9.8	0.5	50
ULC0521C	5	6.5	12	0.26	125
ULC0721C	7	8.5	14	0.3	100
GLC0521C	5	5.5	8	4	100
PESD11B8V0	8	17	9.3	4	100
ULLC0521	5	6	-	0.15	51
ULC0521	5	6.1	9	0.5	60
ESDA3302P3	3.3	4.5	8.5	9	20
ESDA0502P3	5	6	7.5	8	20
ESDA1202P3	12	13.3	17	6	20
ESDA05CP3	5	6	8	2	100
ESDA1222CP3	12	13.3	18	4	50
LC0502N	5	6	15	0.3	125
ULC0503NL	5	6.5	16.5	0.5	100
ULC0542T	5	6	10	0.3	75
SD0371P6W	3.3	4.9	7	350	1300
SD0571P6W	5	6	9	650	1280
SD0771P6W	7	7.5	12	550	1500
ESD1285WP	11	13.3	18.5	250	1500
SD1271P6W	12	12.6	18	500	1500
SD1571P6W	15	16.5	22	450	1500
SD1871P6W	18	19.6	26	350	1500
SD2471P6W	24	26.7	42	200	1875
SD3671P6W	36	37	60	150	1500

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