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1SMA70AT3G 1SMA70AT3G is a 400W unidirectional TVS diode from ON Semiconductor with 70V standoff voltage and 113V clamping voltage in an SMA package.
Mfr Part #:

1SMA70AT3G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
1SMA70AT3G is a 400W unidirectional TVS diode from ON Semiconductor with 70V standoff voltage and 113V clamping voltage in an SMA package.
Total Stock: 30,000 pcs

1SMA70AT3G Available from 1 distributor

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30,000 pcs
30000 pcs On Request 1 On Request On Request On Request On Request On Request

1SMA70AT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Applications
Automotive Grade
Capacitance @ Frequency
Clamping Voltage
Current
DC Power Dissipation (Ambient Temperature)
DC Power Dissipation (Lead Temperature)
ESD Rating
Forward Surge Current
Industrial Grade
Lead Spacing
Lead Style
Mounting Type
Operating Temperature
Package / Case
Peak Pulse Current
Peak Pulse Power
Power
Power Line Protection
Response Time
SVHC Present
Soldering Temperature (Maximum)
Standard Package Quantity
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Type
Unidirectional Channels
Voltage

1SMA70AT3G Description

Short technical summary and product information.

The 1SMA70AT3G is a 400W peak power unidirectional transient voltage suppressor (TVS) diode from ON Semiconductor, part of the 1SMA5.0AT3 series. It is designed to protect voltage-sensitive components from high-voltage, high-energy transients. Key electrical specifications include a working peak reverse voltage of 70V, a clamping voltage of 113V at a peak pulse current of 3.5A, and a peak pulse power rating of 400W for a 1ms pulse. The device features a fast response time typically less than 1 ns and an ESD rating of Class 3 (>16 kV) per the Human Body Model.

 

The diode is housed in a surface-mount SMA (DO-214AC) package, which offers a low profile and flat handling surface for accurate placement. It supports an operating temperature range of -65°C to 150°C and is suitable for soldering at up to 260°C for 10 seconds. The package is void-free, transfer-molded plastic with corrosion-resistant leads. The device is supplied in tape and reel packaging with a standard quantity of 5000 pieces.

 

Typical applications include communication systems, automotive electronics, numerical controls, process controls, medical equipment, business machines, and power supplies. The 1SMA70AT3G provides reliable overvoltage protection in a compact, cost-effective surface-mount package.

1SMA70AT3G Quick Information

Product Type: TVS Diode (Transient Voltage Suppressor)
Series: 1SMA5.0AT3 Series
Canonical Name: 1SMA70AT3G - 400W Unidirectional TVS Diode, SMA Package
Subcategory: Unidirectional TVS Diode

1SMA70AT3G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

1SMA70AT3G Features

  • 400W peak pulse power dissipation.
  • Fast response time typically <1 ns.
  • ESD rating Class 3 (>16 kV) per HBM.
  • Surface mount SMA package.
  • Operating temperature range -65°C to 150°C.

1SMA70AT3G Applications

  • Protects voltage sensitive components from transients.
  • Used in communication systems and power supplies.
  • Suitable for automotive and industrial applications.
  • Ideal for business machines and medical equipment.

1SMA70AT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the clamping voltage of the 1SMA70AT3G?

The clamping voltage is 113V at a peak pulse current of 3.5A.

What is the peak pulse current rating?

The peak pulse current is 3.5A.

What package does the 1SMA70AT3G come in?

It comes in a surface-mount SMA (DO-214AC) package.

What is the peak pulse power rating?

The peak pulse power is 400W for a 1ms pulse.

What is the response time of this TVS diode?

The response time is typically less than 1 ns.

What is the ESD rating?

The ESD rating is Class 3 (>16 kV) per the Human Body Model.

What is the operating temperature range?

The operating temperature range is -65°C to 150°C (junction).

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