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1SMA5940BT3G On Semiconductor 1SMA5940BT3G is a 43V Zener diode rated for 1.5W power dissipation in a surface mount SMA package.
Mfr Part #:

1SMA5940BT3G

Available from 4 distributors
Mfr Name: On Semiconductor
On Semiconductor
On Semiconductor 1SMA5940BT3G is a 43V Zener diode rated for 1.5W power dissipation in a surface mount SMA package.
Total Stock: 70,864 pcs

1SMA5940BT3G Available from 4 distributors

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Non-Authorised

1SMA5940BT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Current - Reverse Leakage @ Vr
Impedance (Max) (Zzt)
Mounting Type
Operating Temperature
Operating Temperature - Junction
Package / Case
Power
Power - Max
Supplier Device Package
Tolerance
Voltage
Voltage - Forward (Vf) (Max) @ If
Voltage - Zener (Nom) (Vz)

1SMA5940BT3G Description

Short technical summary and product information.

The On Semiconductor 1SMA5940BT3G is a 1.5 Watt surface mount Zener voltage regulator diode from the 1SMA59xxBT3G series. It features a nominal Zener voltage of 43V with a ±5% tolerance and a maximum impedance of 53Ω at the test current.

 

This device is designed for voltage regulation and protection applications. It offers a low reverse leakage current of 500nA at 32.7V and a forward voltage drop of 1.5V at 200mA. The diode is housed in a compact DO-214AC (SMA) package, suitable for automated surface mount assembly.

 

Operating over a junction temperature range of -65°C to 150°C, the 1SMA5940BT3G is Pb-Free and RoHS3 compliant, making it suitable for use in environmentally conscious designs. Its flat handling surface enables accurate placement during manufacturing.

1SMA5940BT3G Quick Information

Product Type: Zener Diode
Series: 1SMA59xxBT3G
Canonical Name: On Semiconductor 1SMA5940BT3G Zener Diode 43V 1.5W SMA
Subcategory: Single Zener Diode

1SMA5940BT3G Compliance

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

1SMA5940BT3G Features

  • 1.5W power dissipation in SMA package.
  • 43V nominal Zener voltage with ±5% tolerance.
  • Low reverse leakage of 500 nA at 32.7V.
  • Surface mount DO-214AC (SMA) package.
  • Operating junction temperature from -65°C to 150°C.

1SMA5940BT3G Applications

  • Voltage regulation in power supplies.
  • Overvoltage protection circuits.
  • Voltage reference applications.
  • General purpose Zener diode circuits.

1SMA5940BT3G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1SMA5940BT3G?

The nominal Zener voltage is 43V with a ±5% tolerance.

What is the power rating of this Zener diode?

The maximum power dissipation is 1.5W.

What package is the 1SMA5940BT3G available in?

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

What is the reverse leakage current of the 1SMA5940BT3G?

The reverse leakage current is 500 nA at 32.7V.

What is the forward voltage drop of this diode?

The maximum forward voltage is 1.5V at 200mA.

What is the operating temperature range for this device?

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

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