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1SMB5931BT3G 1SMB5931BT3G is a 18V Zener diode with 3W power dissipation, surface mount in DO-214AA (SMB) package. It features ±5% tolerance and low reverse leakage current.
Mfr Part #:

1SMB5931BT3G

Available from 7 distributors
Mfr Name: On Semiconductor
On Semiconductor
1SMB5931BT3G is a 18V Zener diode with 3W power dissipation, surface mount in DO-214AA (SMB) package. It features ±5% tolerance and low reverse leakage current.
✓ Total Stock: 52,284 pcs

1SMB5931BT3G Available from 7 distributors

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1SMB5931BT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Forward Voltage
Impedance (Max) (Zzt)
Industrial Grade
Lead Style
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Power
Power Dissipation
Storage Temperature
Supplier Device Package
Tape & Reel
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1SMB5931BT3G Description

Short technical summary and product information.

The 1SMB5931BT3G is a 18V Zener diode from On Semiconductor, part of the 1SMB59xxBT3G series of 3W plastic surface mount voltage regulators. It offers a nominal Zener voltage of 18V with ±5% tolerance, and a maximum power dissipation of 3W at lead temperature 75°C. The device features a low Zener impedance of 12Ω and a reverse leakage current of 1µA at 13.7V. Forward voltage is 1.5V at 200mA. The diode is designed for surface mount assembly in a DO-214AA (SMB) package, with L-bend leads for improved solder contact. It operates over a wide temperature range of -65°C to 150°C. The device is RoHS compliant and has an ESD rating of Class 3 (>16kV) per HBM. Typical applications include voltage regulation, overvoltage protection, and reference voltage generation in power supplies and consumer electronics.

1SMB5931BT3G Quick Information

Product Type: Zener Diode
Series: 1SMB59xxBT3G Series
Canonical Name: Zener Diode, 18V, 3W, Surface Mount, DO-214AA (SMB)
Subcategory: Zener Voltage Regulator

1SMB5931BT3G Compliance

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

1SMB5931BT3G Features

  • 18V Zener voltage with ±5% tolerance.
  • 3W power dissipation at 75°C lead temperature.
  • Surface mount DO-214AA (SMB) package.
  • Low Zener impedance of 12Ω.
  • ESD rated Class 3 (>16kV) HBM.

1SMB5931BT3G Applications

  • Voltage regulation in power supply circuits.
  • Overvoltage protection for sensitive components.
  • Reference voltage generation in analog circuits.
  • Used in automotive and industrial electronics.

1SMB5931BT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the 1SMB5931BT3G?

The Zener voltage is 18V with ±5% tolerance.

What is the power dissipation rating?

The maximum power dissipation is 3W at lead temperature 75°C.

What is the forward voltage?

The forward voltage is 1.5V at 200mA.

What package is this diode available in?

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

What is the operating temperature range?

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

Is this device RoHS compliant?

According to the datasheet, the device is RoHS3 compliant.

What is the ESD rating?

The ESD rating is Class 3 (>16kV) per Human Body Model.

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