ESD electrostatic protection
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Information of ESD 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)
|
Vbr(V)
|
Vc(V)
|
Cj(pF)
|
Ppp(W)
|
Inner Diagram | Data sheet |
|---|---|---|---|---|---|---|---|
| ULC0502M3Q | 5 | 6 | 12 | 0.3 | 100 |
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| ULC0502T3 | 5 | 6 | 9.8 | 0.6 | 100 |
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| ESD2511CDN | 2.5 | 3 | 6 | 60 | 310 |
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|
| ULC3311CDN | 3.3 | 4.2 | 10 | 0.45 | 56 |
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| ESDA33CP | 3.3 | 3.5 | 6.5 | 12 | 80 |
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| ESD4521C | 4.5 | 4.8 | 6.5 | 60 | 300 |
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| ESDA05CP | 5 | 6 | 7.5 | 15 | 80 |
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| SMDA05CCN | 5 | 7 | 12 | 60 | 300 |
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| LC6511CP | 6 | 6.5 | 18 | 5 | 50 |
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| ESDA08CP | 8 | 9 | 16 | 7 | 150 |
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| ULC0511CDN | 5 | 9.5 | 10 | 0.3 | 60 |
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| SDA3311CDN | 3.3 | 5 | 11 | 50 | 420 |
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| SDA0511CDN | 5 | 7 | 9 | 60 | 300 |
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| SDA0811CDN | 8 | 8.5 | 10 | 80 | 300 |
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| SDA1211CDN | 12 | 14 | 15.3 | 8 | 150 |
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| SDA1511CDN | 15 | 16 | 18 | 10 | 200 |
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| SDA2411CDN | 24 | 27 | 34 | 20 | 300 |
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| SDA3611CDN | 36 | 42 | 55 | 20 | 300 |
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| SMDA05NLI |
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| PESD0542U005 |
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| PESD0342U005 |
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| SDA1511DNH |
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| SMDA24TN |
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| ULC052010P5 | 5 | 6.5 | 15 | 0.2 | 60 |
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| SD2402P4-3 | 24 | 25 | 40 | 800 | 5400 |
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| SD1501P4-3 | 15 | 16.5 | 28 | 480 | 6500 |
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| ULC0544T | 5 | 9 | 15 | 0.4 | 60 |
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| ESDA05CP30 | 5 | 6 | 7.5 | 15 | 80 |
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| ULC0542C | 5 | 6.5 | 25 | 0.3 | 100 |
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| SD0771D3W | 7 | 7.5 | 8 | 550 | 1500 |
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