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1SMA43AT3G Unidirectional Zener TVS diode with 43V reverse standoff voltage, 69.4V clamping, and 400W peak pulse power. Surface mount in SMA (DO-214AC) package.
Mfr Part #:

1SMA43AT3G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
Unidirectional Zener TVS diode with 43V reverse standoff voltage, 69.4V clamping, and 400W peak pulse power. Surface mount in SMA (DO-214AC) package.
Total Stock: 30,000 pcs

1SMA43AT3G Available from 1 distributors

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

1SMA43AT3G Specifications Quick View

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

1SMA43AT3G Description

Short technical summary and product information.

The 1SMA43AT3G is a unidirectional TVS diode from onsemi designed for general purpose transient voltage suppression. It features a reverse standoff voltage of 43V and a clamping voltage of 69.4V at a peak pulse current of 5.8A. The device can handle 400W of peak pulse power (10/1000μs waveform).

 

Built with Zener technology, this diode offers single-channel unidirectional protection. Its capacitance is rated at 295pF at 1MHz, making it suitable for low-frequency signal line protection. The part is housed in a standard DO-214AC (SMA) surface-mount package.

 

Typical applications include voltage spike protection in power supplies, industrial control systems, and general electronic circuits. The device operates over a wide temperature range of -65°C to 150°C.

1SMA43AT3G Quick Information

Product Type: TVS Diode
Series: 1SMAxxA
Canonical Name: 1SMA43AT3G – Unidirectional TVS Diode, 43V Reverse Standoff, SMA Package
Subcategory: General Purpose TVS Diodes

1SMA43AT3G Compliance

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

1SMA43AT3G Features

  • Unidirectional Zener TVS protection diode.
  • 43V reverse standoff voltage rating.
  • 69.4V clamping voltage at 5.8A.
  • 400W peak pulse power capability.
  • Surface mount SMA (DO-214AC) package.

1SMA43AT3G Applications

  • Protection for power supply input lines.
  • General purpose circuit transient suppression.
  • Use in industrial control and automation equipment.

1SMA43AT3G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the reverse standoff voltage of the 1SMA43AT3G?

The reverse standoff voltage (V_RWM) is 43V.

What is the clamping voltage of this TVS diode?

The clamping voltage is 69.4V at a peak pulse current of 5.8A.

What is the peak pulse current and power rating?

Peak pulse current is 5.8A and peak pulse power is 400W.

What package is the 1SMA43AT3G available in?

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

What is the capacitance of the 1SMA43AT3G?

The capacitance is 295pF at 1MHz.

What is the operating temperature range?

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

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