工作原理：通常以并联方式接入电路。正常工作时处于高阻态，不影响信号传输；当出现瞬态过压时，会迅速转为低阻态，为静电电流提供泄放路径。
主要特点：响应速度极快（纳秒级），电容低，能有效将电压钳位在安全水平。
典型应用：用于保护HDMI、USB等高速数据传输接口的I/O端口。
| Part Number | Directional | Vrwm / Max(V) | Vbr / Min(V) | Ir @Vrwm / Max(uA） | Vc / Typ(V) | Ipp(A) | Cj / Typ(pF） | Cj / Max(pF） | Package |
|---|---|---|---|---|---|---|---|---|---|
| ST2421D2 | Bi | 24 | 26 | 0.5 | 7 | 6 | 0.45 | - | DFN0603-2 |
| ST2421D2-01F | Bi | 24 | 25.5 | 0.2 | 23.5 | 3.5 | 0.13 | 0.19 | DFN0603-2 |
| ST2421D4 | Bi | 24 | 26.5 | 0.5 | 53 | 1.5 | 0.3 | - | DFN1006-2 |
| ST7021D4 | Bi | 70 | 80 | 0.5 | - | - | 0.6 | - | DFN1006-2 |
| ST1821D4 | Bi | 18 | 19.5 | 0.2 | 40 | 2 | 0.3 | - | DFN1006-2 |
| ST2421D4S | Bi | 24 | 26 | 0.5 | 6 | 5 | 0.5 | 0.7 | DFN1006-2 |
| ST3621D4S | Bi | 36 | 40 | 1 | 12 | 7 | 0.4 | 0.6 | DFN1006-2 |
| ST6031D4 | Uni | 60 | 62 | 0.2 | 15 | 20 | 2 | - | DFN1006-2 |
| ST2441D2 | Bi | 24 | 26.8 | 0.2 | 45 | 2 | 8 | - | DFN0603-2 |
| ST1541D4S | Bi | 15 | 16 | 0.5 | 17.5 | 14 | 0.7 | 1 | DFN1006-2 |
| ST2441S3 | Bi | 24 | 26.7 | 1 | 45 | 7 | 1 | 1.5 | SOD-323 |
| ST1541S3 | Bi | 15 | 16.7 | 1 | 32 | 10 | 0.8 | - | SOD-323 |
| ST2442S-23 | Bi | 24 | 26.7 | 0.5 | 45 | 9 | 18 | - | SOT-23 |
| ST7044S23-6 | Uni | 70 | 85 | 0.2 | - | - | 1.6 | 3 | SOT-23-6 |
| ST2451D2 | Uni | 24 | 27 | 0.2 | 45 | 2 | 10 | - | DFN0603-2 |
| ST2451D4 | Uni | 24 | 26 | 0.5 | 50 | 30 | - | 75 | DFN1006-2 |
| ST3651D4 | Uni | 36 | 38 | 0.5 | 60 | 4 | - | 30 | DFN1006-2 |
| ST1551D4-01M | Uni | 15 | 16 | 0.1 | 32 | 13 | 120 | - | DFN1006-2 |
| ST2451S5 | Uni | 24 | 26.5 | 0.1 | 51 | 5 | 27 | - | SOD-523 |
| ST6054D25 | Bi | 60 | 65 | 0.5 | 110 | 3 | 10.5 | 12 | DFN2510-10 |
| ST2461D2 | Bi | 24 | 26.5 | 0.5 | 45 | 2 | - | 6 | DFN0603-2 |
| ST3661D4 | Bi | 36 | 38 | 0.5 | 75 | 4 | - | 20 | DFN1006-2 |
| ST1861D4 | Bi | 18 | 19.8 | 0.2 | 45 | 10 | 30 | 50 | DFN1006-2 |
| ST1561D4 | Bi | 15 | 16.7 | 0.5 | 30 | 6 | 15 | 20 | DFN1006-2 |
| ST1861D4-01F | Bi | 18 | 19.5 | 0.5 | 35 | 5.5 | 17 | 23 | DFN1006-2 |
| ST3061D4-01M | Bi | 30 | 32 | 0.2 | 64 | 5 | 15 | - | DFN1006-2 |
| ST2461N4 | Bi | 24 | 26 | 0.5 | 38 | 4 | 10 | 15 | DFN1006-2 |
| ST3661S3 | Bi | 36 | 38.5 | 1 | 65 | - | - | 20 | SOD-323 |
| ST2461S3 | Bi | 24 | 26.5 | 1 | 50 | 7 | - | 30 | SOD-323 |
| ST1861S3 | Bi | 18 | 20 | 0.5 | 30 | 11 | 25 | - | SOD-323 |
| ST1561S3-01H | Bi | 15 | 16.7 | 0.5 | 30 | 25 | 30 | - | SOD-323 |
| ST2461S3-01M | Bi | 24 | 26.5 | 0.1 | 45 | 10 | - | 30 | SOD-323 |
| ST2461S5 | Bi | 24 | 27 | 0.2 | 60 | 5 | 16 | 20 | SOD-523 |
| ST3661S5 | Bi | 36 | 38 | 0.5 | 56 | - | 20 | 40 | SOD-523 |
| ST2462S-23 | Bi | 24 | 26.7 | 0.5 | 46 | 11 | 28 | - | SOT-23 |
| ST1562S-23 | Bi | 15 | 17 | 0.5 | 30 | 9 | 40 | - | SOT-23 |
| ST2462S2-02M | Bi | 24 | 26.5 | 0.1 | 50 | 5 | 15 | 20 | SOT-23 |
| ST1571D4 | Uni | 15 | 16 | 1 | 32 | 20 | 60 | 100 | DFN1006-2 |
| ST2071D6 | Uni | 20 | 22.6 | 1 | 30 | 90 | 260 | 280 | DFN1610-2 |
| ST2471D6 | Uni | 24 | 25 | 0.5 | 35 | 70 | - | 250 | DFN1610-2 |
| ST1571D6 | Uni | 15 | 16.7 | 1 | 30 | 110 | 320 | - | DFN1610-2 |
| ST3071D6L | Uni | 30 | 31 | 0.5 | 42 | 80 | 165 | 180 | DFN1610-2 |
| ST1571D6L | Uni | 15 | 16.7 | 0.5 | 23 | 70 | 255 | - | DFN1610-2 |
| ST2471D20 | Uni | 24 | 25 | 1 | 45 | 140 | 410 | - | DFN2020-3 |
| ST1571D20 | Uni | 15 | 16.5 | 1 | 35 | 180 | 1200 | 1500 | DFN2020-3 |
| ST2071D20 | Uni | 20 | 21 | 0.5 | 45 | 150 | - | 1100 | DFN2020-3 |
| ST1871D20 | Uni | 18 | 19 | 0.1 | 33 | 150 | 950 | 1300 | DFN2020-3 |
| ST1571S3 | Uni | 15 | 16.5 | 0.5 | 28 | 32 | 250 | 350 | SOD-323 |
| ST1571S3-01M | Uni | 15 | 15.5 | 0.2 | 32 | 12 | - | 80 | SOD-323 |
| ST1571S5 | Uni | 15 | 18 | 0.2 | 32 | 10 | 50 | - | SOD-523 |
| ST2491D6 | Uni | 24 | 26.7 | 1 | 28 | 80 | 230 | - | DFN1610-2 |
| ST2091D6 | Uni | 20 | 22 | 0.1 | 35 | - | 200 | - | DFN1610-2 |
| ST2491D20 | Uni | 24 | 24.8 | 1 | 36 | 235 | 800 | 1400 | DFN2020-3 |
| ST3091D20 | Uni | 30 | 31 | 1 | 35 | 130 | - | 1100 | DFN2020-3 |
| ST2491D20L | Uni | 24 | 25 | 0.6 | 35 | 180 | 365 | - | DFN2020-3 |
| ST2491D20P | Uni | 24 | 26 | 0.5 | 33 | 190 | 750 | - | DFN2020-3 |
| ST2491S3 | Uni | 24 | 26.7 | 0.2 | 54 | 35 | - | 200 | SOD-323 |
| ST1591S3 | Uni | 15 | 16.7 | 1 | 33 | 100 | 300 | 400 | SOD-323 |
| M4SMF5.0A | Uni | 5 | 6.4 | 300 | 15 | 220 | - | 1400 | SOD-123FL |
| M4SMF5.0CA | Bi | 5 | 6.4 | 300 | 15 | 220 | - | 1000 | SOD-123FL |
| M4SMF6.0A | Uni | 6 | 6.7 | 100 | 16 | 220 | - | 1400 | SOD-123FL |
| M4SMF6.0CA | Bi | 6 | 6.7 | 100 | 16 | 220 | - | 1000 | SOD-123FL |
| M4SMF6.5A | Uni | 6.5 | 7.2 | 50 | 16 | 200 | - | 1400 | DFN4120-10 |
| M4SMF6.5CA | Bi | 6.5 | 7.2 | 50 | 16 | 200 | - | 1000 | SOD-123FL |
| M4SMF7.0A | Uni | 7 | 7.7 | 50 | 17 | 200 | - | 1400 | SOD-123FL |
| M4SMF7.0CA | Bi | 7 | 7.7 | 50 | 17 | 200 | - | 1000 | SOD-123FL |
| M4SMF9.0A | Uni | 9 | 10 | 2 | 20 | 200 | - | 1400 | SOD-123FL |
| M4SMF9.0CA | Bi | 9 | 10 | 2 | 20 | 200 | - | 1000 | SOD-123FL |
| M4SMF12A | Uni | 12 | 13.3 | 1 | 24 | 190 | - | 1200 | SOD-123FL |
| M4SMF12CA | Bi | 12 | 13.3 | 1 | 24 | 190 | - | 600 | SOD-123FL |
| M4SMF15A | Uni | 15 | 16.7 | 1 | 26 | 180 | - | 100 | SOD-123FL |
| M4SMF15CA | Bi | 15 | 16.7 | 1 | 26 | 180 | - | 500 | SOD-123FL |
| M4SMF18A | Uni | 18 | 20 | 1 | 30 | 160 | - | 700 | SOD-123FL |
| M4SMF18CA | Bi | 18 | 20 | 1 | 30 | 160 | - | 500 | SOD-123FL |
| M4SMF20A | Uni | 20 | 22.2 | 1 | 35 | 160 | - | 700 | SOD-123FL |
| M4SMF20CA | Bi | 20 | 22.2 | 1 | 35 | 160 | - | 500 | SOD-123FL |
| M4SMF24A | Uni | 24 | 26.7 | 1 | 40 | 160 | - | 700 | SOD-123FL |
| M4SMF24CA | Bi | 24 | 26.7 | 1 | 40 | 160 | - | 500 | SOD-123FL |
| M4SMF26A | Uni | 26 | 28.9 | 1 | 44 | 80 | - | 1000 | SOD-123FL |
| M4SMF26CA | Bi | 26 | 28.9 | 1 | 44 | 80 | - | 1000 | SOD-123FL |
大连 龙腾国际 Technology Co., Ltd
辽宁省大连市金州区董家沟街道金悦街21号