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[China]
Trade Verify
Address: 4/F, Block C, HeHengXing Science & Technology Park, 19 MinQing Road, LongHua District, Shenzhen City, GuangDong Province, China
Contact name:Sun
Shenzhen Socay Electronics Co., Ltd. |
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Verified Suppliers
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Socay TVS Diodes 400w 22V Surface Mount Transient Voltage Suppressors SMAJ22A SMC
DATASHEET: SMAJ_v2207.1.pdf
Brief introduction:
The SMAJ series is designed for the protection of electronic equipment from voltage transients due to lightning and other transient voltage events.
Application:
TVS devices are perfect for safeguarding I/O interfaces, VCC bus, and other vulnerable circuits utilized in Telecom, Computer, Industrial, and Consumer electronic applications.
| Part Number | Merking | Reverse Stand-Off Voltage VRWM(V) | Breakdown Voltage VBR (V) @IT | Test Current IT(mA) | Maximum Clamping Voltage VC @IPP (V) | Maximum Peak Pulse Current IPP (A) | Maximum Reverse Leakage IR @VRWM (μA) | |||
| Uni | Bi | Uni | Bi | MIN | MAX | |||||
| SMAJ45A | SMAJ45CA | CV | YV | 45.0 | 50.00 | 55.30 | 1 | 72.7 | 5.50 | 5 |
| SMAJ48A | SMAJ48CA | CX | YX | 48.0 | 53.30 | 58.90 | 1 | 77.4 | 5.17 | 5 |
| SMAJ51A | SMAJ51CA | CZ | YZ | 51.0 | 56.70 | 62.70 | 1 | 82.4 | 4.85 | 5 |
| SMAJ54A | SMAJ54CA | RE | ZE | 54.0 | 60.00 | 66.30 | 1 | 87.1 | 4.59 | 5 |
| SMAJ58A | SMAJ58CA | RG | ZG | 58.0 | 64.40 | 71.20 | 1 | 93.6 | 4.27 | 5 |
| SMAJ60A | SMAJ60CA | RK | ZK | 60.0 | 66.70 | 73.70 | 1 | 96.8 | 4.13 | 5 |
| SMAJ64A | SMAJ64CA | RM | ZM | 64.0 | 71.10 | 78.60 | 1 | 103.0 | 3.88 | 5 |
| SMAJ70A | SMAJ70CA | RP | ZP | 70.0 | 77.80 | 86.00 | 1 | 113.0 | 3.54 | 5 |
| SMAJ75A | SMAJ75CA | RR | ZR | 75.0 | 83.30 | 92.10 | 1 | 121.0 | 3.31 | 5 |
| SMAJ78A | SMAJ78CA | RT | ZT | 78.0 | 86.70 | 95.80 | 1 | 126.0 | 3.17 | 5 |
| SMAJ80A | SMAJ80CA | RB | ZB | 80.0 | 88.80 | 97.60 | 1 | 129.6 | 3.09 | 5 |
| SMAJ85A | SMAJ85CA | RV | ZV | 85.0 | 94.40 | 104.00 | 1 | 137.0 | 2.92 | 5 |
| SMAJ90A | SMAJ90CA | RX | ZX | 90.0 | 100.00 | 111.00 | 1 | 146.0 | 2.74 | 5 |
| SMAJ100A | SMAJ100CA | RZ | ZZ | 100.0 | 111.00 | 123.00 | 1 | 162.0 | 2.47 | 5 |
| SMAJ110A | SMAJ110CA | SE | VE | 110.0 | 122.00 | 135.00 | 1 | 177.0 | 2.26 | 5 |
| SMAJ120A | SMAJ120CA | SG | VG | 120.0 | 133.00 | 147.00 | 1 | 193.0 | 2.07 | 5 |
| SMAJ130A | SMAJ130CA | SK | VK | 130.0 | 144.00 | 159.00 | 1 | 209.0 | 1.91 | 5 |
| SMAJ140A | SMAJ140CA | SB | VB | 140.0 | 155.00 | 171.00 | 1 | 226.8 | 1.76 | 5 |
| SMAJ150A | SMAJ150CA | SM | VM | 150.0 | 167.00 | 185.00 | 1 | 243.0 | 1.65 | 5 |
| SMAJ160A | SMAJ160CA | SP | VP | 160.0 | 178.00 | 197.00 | 1 | 259.0 | 1.54 | 5 |
| SMAJ170A | SMAJ170CA | SR | VR | 170.0 | 189.00 | 209.00 | 1 | 275.0 | 1.45 | 5 |
| SMAJ180A | SMAJ180CA | ST | VT | 180.0 | 201.00 | 220.00 | 1 | 291.6 | 1.37 | 5 |
| SMAJ190A | SMAJ190CA | SV | VV | 190.0 | 211.00 | 232.00 | 1 | 307.8 | 1.30 | 5 |
| SMAJ200A | SMAJ200CA | SW | VW | 200.0 | 224.00 | 247.00 | 1 | 324.0 | 1.23 | 5 |
| SMAJ220A | SMAJ220CA | SX | VX | 220.0 | 246.00 | 272.00 | 1 | 356.0 | 1.12 | 5 |
| SMAJ250A | SMAJ250CA | SZ | VZ | 250.0 | 279.00 | 309.00 | 1 | 405.0 | 0.99 | 5 |
| SMAJ300A | SMAJ300CA | DE | HE | 300.0 | 335.00 | 371.00 | 1 | 486.0 | 0.82 | 5 |
| SMAJ350A | SMAJ350CA | DG | HG | 350.0 | 391.00 | 432.00 | 1 | 567.0 | 0.71 | 5 |
| SMAJ400A | SMAJ400CA | DK | HK | 400.0 | 447.00 | 494.00 | 1 | 648.0 | 0.62 | 5 |
| SMAJ440A | SMAJ440CA | DM | HM | 440.0 | 492.00 | 543.00 | 1 | 713.0 | 0.56 | 5 |
Notes:
1.1.Suffix 'A ' denotes 5% tolerance device.
2. 2.Add suffix ' CA ' after part number to specify Bi-directional devices.
3. 3.For Bi-Directional devices having VR of 10 volts and under, the IR limit is double.
Characteristics:
The junction is passivated with glass
Low inductance
Low leakage
Uni and Bidirectional unit
The clamping capability is excellent
Plated with matte tin that is lead-free.
Halogen free and RoHS compliant
To optimize board space for surface mounted applications
The plastic package has a flammability rating of Underwriters Laboratory 94V-0.
Over-specification of voltage or current
is a common cause of failure
The Whisker test is conducted according
to JEDEC JESD201A, specifically following its table 4a and 4c.
The device has a peak power capability of 400W
when using a 10 × 1000μs waveform repetition rate (duty cycle) of
0.01%.
Fast response time: typically less than
1.0ps from 0 Volts to VBR min
Typical infrared (IR) is less than 5
microamps (μA) above 12 volts.
Soldering at high temperatures:
terminals should be heated to 260°C for 40 seconds.
IEC-61000-4-2 ESD 15kV(Air), 8kV (Contact)
Typical maximum temperature coefficient ΔVBR = 0.1% × VBR@25°C× ΔT
ESD protection of data lines in accordance with IEC 61000-4-2(IEC801-2)
EFT protection of data lines in accordance with IEC 61000-4-4(IEC801-4)
| Parameter | Symbol | Value | Unit |
| Peak Pulse Power Dissipation with a 10/1000µs waveform (Fig.1)(Note 1), (Note 2) | PPPM | 400 | Watts |
| Peak Pulse Current with a 10/1000µs waveform.(Note1,Fig.3) | IPP | See Next Table | Amps |
| Power Dissipation on Infinite Heat Sink at TL=75°C | PM(AV) | 1.0 | Watt |
| Peak Forward Surge Current, 8.3ms Single Half Sine Wave (Note 3) | IFSM | 40 | Amps |
| Maximum Instantaneous Forward Voltage at 25A for Unidirectional Only (Note 4) | VF | 3.5/5.0 | Voltage |
| Operating junction and Storage Temperature Range. | TJ , TSTG | -55 to +150 | ℃ |
Notes:
1. Apply a non-repetitive current pulse as shown in Figure 3 and derate above TA = 25℃ as per Figure 2. 2.
2.Mount the device on 5.0mm x 5.0mm (0.03mm thick) copper pads on each terminal.
3.The device should produce a single half sine-wave or equivalent square wave with a duration of 8.3ms. The duty cycle should not exceed 4 pulses per minute. Non-essential fillers have been removed.
4.The forward voltage (VF) should be less than 3.5V for VBR values below 200V and less than 6.5V for VBR values above 201V. All units and metrics should be strictly adhered to.
