Have a small number of parts or want to add parts manually? Request Quote manually

Search across all market segments

1SMB5940BT3G The 1SMB5940BT3G is a 43V Zener diode from On Semiconductor with 3W power dissipation. It comes in a surface mount SMB package with ±5% tolerance.
Mfr Part #:

1SMB5940BT3G

Available from 7 distributors
Mfr Name: On Semiconductor
On Semiconductor
The 1SMB5940BT3G is a 43V Zener diode from On Semiconductor with 3W power dissipation. It comes in a surface mount SMB package with ±5% tolerance.
Total Stock: 17,250 pcs

1SMB5940BT3G Available from 7 distributors

Authorised
Non-Authorised

1SMB5940BT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Conflict Minerals
Current
ESD Rating
Flammability Rating
Forward Voltage
Halogen Free
Impedance (Max) (Zzt)
Industrial Grade
Lead Spacing
Lead Style
Maximum Soldering Temperature
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Packaging Type
Power
Power Dissipation
Reverse Leakage Current
SVHC Present
Standard Package Qty
Storage Temperature
Supplier Device Package
Tape & Reel
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Tolerance
Voltage
Zener Impedance (Max)
Zener Voltage

1SMB5940BT3G Description

Short technical summary and product information.

The 1SMB5940BT3G is a 43V Zener voltage regulator diode from On Semiconductor's 1SMB59xxBT3G series. It offers a nominal zener voltage of 43V with a tolerance of ±5% and a maximum power dissipation of 3W.

 

Electrical characteristics include a maximum zener impedance of 53Ω and a reverse leakage current of 1µA at 32.7V. The device features an ESD rating of Class 3 (>16 kV) per Human Body Model and operates over a temperature range of -65°C to 150°C.

 

The diode is housed in a DO-214AA (SMB) surface mount package with a flammability rating of UL 94 V-0. It is supplied in tape and reel packaging with a standard quantity of 2500 pieces. The maximum soldering temperature is 260°C for 10 seconds.

 

Applications include voltage regulation in power supplies, overvoltage protection, and reference voltage sources. The Pb-free finish supports environmental compliance requirements.

1SMB5940BT3G Quick Information

Product Type: Zener Diode
Series: 1SMB59xxBT3G
Canonical Name: 1SMB5940BT3G Zener Diode 43V 3W Surface Mount SMB
Subcategory: Single Zener Diode

1SMB5940BT3G Compliance

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

1SMB5940BT3G Features

  • 43V nominal zener voltage with ±5% tolerance.
  • 3W power dissipation capability.
  • Surface mount SMB package for compact designs.
  • ESD rated Class 3 (>16 kV) for robustness.
  • Operating temperature range -65°C to 150°C.

1SMB5940BT3G Applications

  • Voltage regulation in power supply circuits.
  • Overvoltage protection in electronic systems.
  • Reference voltage source for analog circuits.
  • Automotive electronics (AEC-Q101 qualified variant).

1SMB5940BT3G FAQs

6 frequently asked questions generated from this part’s specifications.
What is the zener voltage of the 1SMB5940BT3G?

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

What is the forward voltage of the 1SMB5940BT3G?

The forward voltage is 1.5V at 200mA.

What package does the 1SMB5940BT3G come in?

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

What is the power dissipation rating of the 1SMB5940BT3G?

The maximum power dissipation is 3W.

What is the operating temperature range?

-65°C to 150°C.

What is the ESD rating?

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

Home
Categories
Submit RFQ
Login
Account

Categories