Details, datasheet, quote on part number: 1SMA70AT3
Part1SMA70AT3
CategoryDiscrete => TVS (Transient Transient Voltage Suppressors)
Description400W Zener Suppressor , Package: Sma, Pins=2
CompanyON Semiconductor
DatasheetDownload 1SMA70AT3 datasheet
Cross ref.Similar parts: SMAJ7.0A, SMAJ70A, SM4T82AY, 1SMA70A
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Features, Applications
400 Watt Peak Power Zener Transient Voltage Suppressors

The SMA series is designed to protect voltage sensitive components from high voltage, high energy transients. They have excellent clamping capability, high surge capability, low zener impedance and fast response time. The SMA series is supplied in ON Semiconductor's exclusive, cost-effective, highly reliable Surmetict package and is ideally suited for use in communication systems, automotive, numerical controls, process controls, medical equipment, business machines, power supplies and many other industrial/consumer applications.

PLASTIC SURFACE MOUNT ZENER OVERVOLTAGE TRANSIENT SUPPRESSORS 5.0­78 VOLTS 400 WATTS PEAK POWER

Working Peak Reverse Voltage Range 78 V Standard Zener Breakdown Voltage Range 91.25 V Peak Power ­ 400 Watts 1 ms ESD Rating of Class 3 16 KV) per Human Body Model Response Time is Typically 1 ns Flat Handling Surface for Accurate Placement Package Design for Top Slide or Bottom Circuit Board Mounting Low Profile Package

Mechanical Characteristics: CASE: Void-free, transfer-molded plastic FINISH: All external surfaces are corrosion resistant and leads are

POLARITY: Cathode indicated by molded polarity notch or polarity
= Specific Device Code = (See Table on Page 3) = Assembly Location = Year = Work Week
*Please see to 1SMA78CAT3 for Bidirectional devices. The "T3" suffix refers a 13 inch reel.

Rating Peak Power Dissipation (Note = 25°C, Pulse Width ms DC Power Dissipation = 75°C Measured Zero Lead Length (Note 2) Derate Above 75°C Thermal Resistance from Junction to Lead DC Power Dissipation (Note = 25°C Derate Above 25°C Thermal Resistance from Junction to Ambient Forward Surge Current (Note = 25°C Symbol PPK PD Value Unit W mW/°C °C/W W mW/°C °C/W A °C

Operating and Storage Temperature Range TJ, Tstg X 1000 ms, non­repetitive 2. 1 square copper pad, FR­4 board 3. FR­4 board, using ON Semiconductor minimum recommended footprint, as shown in 403B case outline dimensions spec. 4. 1/2 sine wave (or equivalent square wave), = 8.3 ms, duty cycle = 4 pulses per minute maximum.

(TA = 25°C unless otherwise noted, 3.5 V Max. 30 A for all types) (Note 5) Symbol IPP Parameter Maximum Reverse Peak Pulse Current Clamping Voltage @ IPP Working Peak Reverse Voltage Maximum Reverse Leakage Current @ VRWM Breakdown Voltage @ IT Test Current Forward Current Forward Voltage @ IF

5. 1/2 sine wave or equivalent, = 8.3 ms, non­repetitive duty cycle.

TS A transient suppressor is normally selected according to the working peak reverse voltage (VRWM), which should be equal to or greater than the DC or continuous peak operating voltage level 7. VBR measured at pulse test current at an ambient temperature 25°C 8. Surge current waveform per Figure 2 and derate per Figure 3


 

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