1SMB12AT3 The 1SMB12AT3 is a 600W peak power unidirectional TVS diode from ON Semiconductor. It features a 12V reverse standoff voltage and 19.9V clamping voltage in an SMB (DO-214AA) package.
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1SMB12AT3

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The 1SMB12AT3 is a 600W peak power unidirectional TVS diode from ON Semiconductor. It features a 12V reverse standoff voltage and 19.9V clamping voltage in an SMB (DO-214AA) package.
Total Stock: 2,079 pcs

1SMB12AT3 Available from 1 distributor

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1SMB12AT3 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clamping Voltage
DC Power Dissipation
ESD Rating
Forward Surge Current
Lead Style
Maximum Case Temperature for Soldering
Mounting Type
Operating Temperature Range
Peak Power Dissipation
Polarity
Response Time
Reverse Standoff Voltage
Storage Temperature
Storage Temperature Range
Tape & Reel
Termination Style
Working Peak Reverse Voltage
Zener Breakdown Voltage

1SMB12AT3 Description

Short technical summary and product information.

The 1SMB12AT3 is a 600W peak power Zener-based transient voltage suppressor designed to protect voltage-sensitive components from high-voltage, high-energy transients. It offers a reverse standoff voltage of 12V, a Zener breakdown voltage of 6.7V, and a maximum clamping voltage of 19.9V. The device features a fast response time of typically less than 1 ns and an ESD rating of Class 3 (>16 kV) per the Human Body Model.

 

This unidirectional TVS diode is housed in an SMB (DO-214AA) surface mount package with modified L-bend leads for improved solderability. It operates over a temperature range of -65°C to +150°C and can withstand a peak power dissipation of 600W for a 1 ms pulse width. The package is void-free, transfer-molded thermosetting plastic with corrosion-resistant leads.

 

Typical applications include communication systems, automotive electronics, numerical controls, process controls, medical equipment, business machines, and power supplies. The device is available in Pb-Free packages and is RoHS3 compliant (unverified).

1SMB12AT3 Quick Information

Product Type: TVS Diode
Series: 1SMB5.0AT3 Series
Canonical Name: 1SMB12AT3 TVS Diode, Unidirectional, 12V Reverse Standoff, 600W Peak Power, SMB (DO-214AA)
Subcategory: TVS Diode

1SMB12AT3 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Pb-Free Packages Available

1SMB12AT3 Features

  • 600W peak power dissipation capability.
  • 12V reverse standoff voltage.
  • Fast response time less than 1 ns.
  • ESD rating Class 3 above 16 kV.
  • Surface mount SMB (DO-214AA) package.

1SMB12AT3 Applications

  • Protects communication systems from voltage transients.
  • Used in automotive electronic control modules.
  • Ideal for power supply overvoltage protection.
  • Suitable for medical equipment protection.
  • Applied in industrial process controls.

1SMB12AT3 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1SMB12AT3?

12V.

What is the breakdown voltage?

6.7V (Zener).

What is the clamping voltage?

19.9V maximum.

What package is the 1SMB12AT3 available in?

SMB (DO-214AA) surface mount package.

What is the response time?

Typically less than 1 ns.

What is the ESD rating?

Class 3 (>16 kV) per Human Body Model.

What is the peak power dissipation?

600W at 1 ms pulse width.

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