Socay TVS Diodes SMF Series SOD-123 78CA Circuit Protection Diodes 78V 220W Transient Voltage Suppressors
Socay TVS Diodes SMF Series SOD-123 78CA Circuit Protection Diodes 78V 220W Surface Mount Transient Voltage Suppressors
DATASHEET:SMF Series_v2211.1.pdf
SMF78CA Description:
The SMF Series Transient Voltage Suppressors is a semiconductor device with surge absorption capability, its response time is extremely fast, up to the sub-nanosecond level, so once the circuit receives an instantaneous high-energy shock when it can suppress this energy, by absorbing the instantaneous high-current, high-voltage clamps from the circuit, the end result is the protection of the equipment or circuit behind.
| Part Number | Marking | Reverse | Breakdown | Test | Maximum | Maximum | Maximum | |||
| Uni | Bi | Uni | Bi | MIN | MAX | |||||
| SMF5.0A | SMF5.0CA | FE | KE | 5.0 | 6.40 | 7.00 | 10 | 9.2 | 21.74 | 400 |
| SMF6.0A | SMF6.0CA | FG | KG | 6.0 | 6.67 | 7.37 | 10 | 10.3 | 19.42 | 400 |
| SMF6.5A | SMF6.5CA | FK | KK | 6.5 | 7.22 | 7.98 | 10 | 11.2 | 17.86 | 200 |
| SMF7.0A | SMF7.0CA | FM | KM | 7.0 | 7.78 | 8.60 | 10 | 12.0 | 16.67 | 100 |
| SMF7.5A | SMF7.5CA | FP | KP | 7.5 | 8.33 | 9.21 | 1 | 12.9 | 15.50 | 50 |
| SMF8.0A | SMF8.0CA | FR | KR | 8.0 | 8.89 | 9.83 | 1 | 13.6 | 14.71 | 25 |
| SMF8.5A | SMF8.5CA | FT | KT | 8.5 | 9.44 | 10.40 | 1 | 14.4 | 13.89 | 10 |
| SMF9.0A | SMF9.0CA | FV | KV | 9.0 | 10.00 | 11.10 | 1 | 15.4 | 12.99 | 5 |
| SMF10A | SMF10CA | FX | KX | 10.0 | 11.10 | 12.30 | 1 | 17.0 | 11.76 | 2.5 |
| SMF11A | SMF11CA | FZ | KZ | 11.0 | 12.20 | 13.50 | 1 | 18.2 | 10.99 | 2.5 |
| SMF12A | SMF12CA | HE | LE | 12.0 | 13.30 | 14.70 | 1 | 19.9 | 10.05 | 2.5 |
| SMF13A | SMF13CA | HG | LG | 13.0 | 14.40 | 15.90 | 1 | 21.5 | 9.30 | 1 |
| SMF14A | SMF14CA | HK | LK | 14.0 | 15.60 | 17.20 | 1 | 23.2 | 8.62 | 1 |
| SMF15A | SMF15CA | HM | LM | 15.0 | 16.70 | 18.50 | 1 | 24.4 | 8.20 | 1 |
| SMF16A | SMF16CA | HP | LP | 16.0 | 17.80 | 19.70 | 1 | 26.0 | 7.69 | 1 |
| SMF17A | SMF17CA | HR | LR | 17.0 | 18.90 | 20.90 | 1 | 27.6 | 7.25 | 1 |
| SMF18A | SMF18CA | HT | LT | 18.0 | 20.00 | 22.10 | 1 | 29.2 | 6.85 | 1 |
| SMF19A | SMF19CA | HB | LB | 19.0 | 21.10 | 23.30 | 1 | 30.6 | 6.54 | 1 |
| SMF20A | SMF20CA | HV | LV | 20.0 | 22.20 | 24.50 | 1 | 32.4 | 6.17 | 1 |
| SMF22A | SMF22CA | HX | LX | 22.0 | 24.0 | 26.90 | 1 | 35.5 | 5.63 | 1 |
| SMF24A | SMF24CA | HZ | LZ | 24.0 | 26.70 | 29.50 | 1 | 38.9 | 5.14 | 1 |
| SMF26A | SMF26CA | JE | ME | 26.0 | 28.90 | 31.90 | 1 | 42.1 | 4.75 | 1 |
| SMF28A | SMF28CA | JG | MG | 28.0 | 31.10 | 34.40 | 1 | 45.4 | 4.41 | 1 |
| SMF30A | SMF30CA | JK | MK | 30.0 | 33.30 | 36.80 | 1 | 48.4 | 4.13 | 1 |
| SMF33A | SMF33CA | JM | MM | 33.0 | 36.70 | 40.60 | 1 | 53.3 | 3.75 | 1 |
| SMF36A | SMF36CA | JP | MP | 36.0 | 40.00 | 44.20 | 1 | 58.1 | 3.44 | 1 |
| SMF40A | SMF40CA | JR | MR | 40.0 | 44.40 | 49.10 | 1 | 64.5 | 3.10 | 1 |
| SMF43A | SMF43CA | JT | MT | 43.0 | 47.80 | 52.80 | 1 | 69.4 | 2.88 | 1 |
| SMF45A | SMF45CA | JV | MV | 45.0 | 50.00 | 55.30 | 1 | 72.7 | 2.75 | 1 |
| SMF48A | SMF48CA | JX | MX | 48.0 | 53.0 | 58.90 | 1 | 77.4 | 2.58 | 1 |
| SMF51A | SMF51CA | JZ | MZ | 51.0 | 56.70 | 62.70 | 1 | 82.4 | 2.43 | 1 |
| SMF54A | SMF54CA | XE | NE | 54.0 | 60.00 | 66.30 | 1 | 87.1 | 2.30 | 1 |
| SMF58A | SMF58CA | XG | NG | 58.0 | 64.40 | 71.20 | 1 | 93.6 | 2.14 | 1 |
| SMF60A | SMF60CA | XK | NK | 60.0 | 66.70 | 73.70 | 1 | 96.8 | 2.07 | 1 |
| SMF64A | SMF64CA | XM | NM | 64.0 | 71.10 | 78.60 | 1 | 103.0 | 1.94 | 1 |
| SMF70A | SMF70CA | XP | NP | 70.0 | 77.80 | 86.00 | 1 | 113.0 | 1.77 | 1 |
| SMF75A | SMF75CA | XR | NR | 75.0 | 83.30 | 92.10 | 1 | 121.0 | 1.65 | 1 |
| SMF78A | SMF78CA | XT | NT | 78.0 | 86.70 | 95.80 | 1 | 126.0 | 1.59 | 1 |
| SMF80A | SMF80CA | XB | NB | 80.0 | 88.80 | 97.60 | 1 | 129.0 | 1.55 | 1 |
| SMF85A | SMF85CA | XV | NV | 85.0 | 94.40 | 104.00 | 1 | 137.0 | 1.46 | 1 |
SMF78CA Specificity:
- Low leakage rate
- Uni- and Bi-directional Unit
- Passivated glass for glass junction
- Low inductivity
- Excellent grip and control capability
- Matt Tin - Lead Free
- RoHS conform and halogen free
- Compatible with the SOD-123 industrial standard package - SOD-123
- Designed to optimise board space in surface mounted applications
- 200W Peak power capability at 10 × 1000μs waveform Repetition Rate (Duty Cycle): 0.01% Duty Cycle
- Fast response: typically less than 1.0ps from 0V to VBRmin
- High-temperature solder: 260℃/40 seconds on clamps
- Typical maximum temperature coefficient ΔVBR = 0.1% × VBR@25℃×ΔT
- Plastic packaging is flammability rated 94V-0 by the Underwriters Laboratory.
- A typical failure mode is short circuiting due to overvoltage or overcurrent.
- The whisker test is carried out according to JEDEC JESD201A tables 4a and 4c.
- IEC-61000-4-2 ESD 15kV(Air), 8kV (Contact)
- IEC 61000-4-2 (IEC801-2) ESD protection of data lines
- IEC 61000-4-4 (IEC801-4) EFT data line protection
SMF78CA Applications:
TVS devices are suitable for safeguarding I/O interfaces, VCC buses, and other protection circuits utilized in telecommunications, computer, consumer, and industrial applications that are susceptible to attacks.







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