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1SMB12AT3G On Semiconductor 1SMB12AT3G is a 600W unidirectional Zener TVS diode with 12V reverse standoff voltage and 19.9V clamping voltage in a DO-214AA (SMB) surface mount package.
Mfr Part #:

1SMB12AT3G

Available from 5 distributors
Mfr Name: On Semiconductor
On Semiconductor
On Semiconductor 1SMB12AT3G is a 600W unidirectional Zener TVS diode with 12V reverse standoff voltage and 19.9V clamping voltage in a DO-214AA (SMB) surface mount package.
Total Stock: 151,721 pcs

1SMB12AT3G Available from 5 distributors

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1SMB12AT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Capacitance @ Frequency
Clamping Voltage
Current
Halogen Free
Lead Spacing
Lead Style
Mounting Type
Operating Temperature
Package / Case
Peak Pulse Current
Peak Pulse Power
Power
Power Line Protection
Reverse Standoff Voltage
SVHC Present
Storage Temperature
Supplier Device Package
TVS Diode Type
Tape & Reel
Type
Unidirectional Channels
Voltage

1SMB12AT3G Description

Short technical summary and product information.

The 1SMB12AT3G from On Semiconductor is a 600W unidirectional Zener TVS diode designed for general purpose transient voltage suppression. It features a reverse standoff voltage of 12V and a clamping voltage of 19.9V at a peak pulse current of 30.2A (8/20µs waveform). The device provides 600W peak pulse power dissipation for reliable circuit protection against ESD and other voltage transients.

 

Packaged in a DO-214AA (SMB) surface mount package, the 1SMB12AT3G supports operating temperatures from -65°C to 150°C (junction). It is a single-channel unidirectional TVS diode suitable for general purpose applications requiring robust clamping performance with low leakage. The diode offers a capacitance of 1245pF at 1MHz, which should be considered for high-speed signal lines.

 

With its industry-standard SMB footprint, this TVS diode can be easily integrated into automated assembly processes. It is commonly used for protecting sensitive circuits in consumer electronics, industrial controls, and communication equipment where 12V power rails need transient protection.

1SMB12AT3G Quick Information

Product Type: TVS Diode (Zener)
Series: SMB
Canonical Name: 1SMB12AT3G - On Semiconductor Zener TVS Diode, 12V Reverse Standoff, 600W SMB
Subcategory: Unidirectional TVS Diode

1SMB12AT3G Compliance

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

1SMB12AT3G Features

  • 600W peak pulse power dissipation.
  • 12V reverse standoff voltage rating.
  • 19.9V clamping voltage at 30.2A.
  • Surface mount DO-214AA SMB package.
  • Unidirectional Zener TVS diode.

1SMB12AT3G Applications

  • General purpose transient voltage suppression.
  • Protecting 12V power supply rails.
  • Clamping ESD and surge events.

1SMB12AT3G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the standoff voltage of the 1SMB12AT3G?

The reverse standoff voltage is 12V.

What is the clamping voltage of the 1SMB12AT3G?

The clamping voltage is 19.9V.

What is the peak pulse current rating?

The peak pulse current is 30.2A.

What package does the 1SMB12AT3G come in?

It comes in a DO-214AA (SMB) surface mount package.

What is the operating temperature range?

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

Is this a unidirectional or bidirectional TVS diode?

It is a unidirectional TVS diode with one channel.

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