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1SMB5915BT3G Zener diode with 3.9V nominal voltage, 3W power dissipation, ±5% tolerance, in a surface mount DO-214AA (SMB) package.
Mfr Part #:

1SMB5915BT3G

Available from 9 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode with 3.9V nominal voltage, 3W power dissipation, ±5% tolerance, in a surface mount DO-214AA (SMB) package.
Total Stock: 37,443 pcs

1SMB5915BT3G Available from 9 distributors

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73 pcs
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1SMB5915BT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
ESD Rating
Flammability Rating
Forward Voltage
Impedance (Max) (Zzt)
Industrial Grade
Lead Finish
Lead Style
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Power
Power Rating
Reverse Leakage Current
SVHC Present
Standard Package Quantity
Storage Temperature
Supplier Device Package
Tape & Reel
Tape and Reel
Thermal Resistance, Junction to Lead
Tolerance
Voltage
Zener Impedance
Zener Voltage
maximum_power_dissipation_at_ambient
maximum_power_dissipation_at_lead_temp

1SMB5915BT3G Description

Short technical summary and product information.

The 1SMB5915BT3G is a 3.9V Zener voltage regulator diode from On Semiconductor's 1SMB59xxBT3G series. It is designed for 3W power dissipation at a lead temperature of 75°C, with a maximum steady-state power dissipation of 550mW at 25°C ambient. The device features a zener impedance of 7.5Ω and a reverse leakage current of 25µA at 1V. It offers an ESD rating of Class 3 (>16kV) per the Human Body Model, ensuring robust protection in handling and operation.

 

This diode is housed in a void-free, transfer-molded plastic DO-214AA (SMB) package with modified L-Bend leads for improved solder contact. It supports surface mount assembly and is rated for operating temperatures from -65°C to 150°C. The leads are corrosion resistant and readily solderable, with a maximum soldering temperature of 260°C for 10 seconds. The package is rated UL 94 V-0 for flammability.

 

The 1SMB5915BT3G is Pb-Free and RoHS compliant, making it suitable for environmentally sensitive designs. It is commonly used in voltage regulation, overvoltage protection, and reference voltage applications in consumer, industrial, and automotive electronics (note: AEC-Q101 qualification applies to SZ-prefix variants).

1SMB5915BT3G Quick Information

Product Type: Zener Diode
Series: 1SMB59xxBT3G
Canonical Name: 1SMB5915BT3G Zener Diode, 3.9V, 3W, Surface Mount, DO-214AA (SMB)
Subcategory: Single Zener Diode

1SMB5915BT3G Compliance

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

1SMB5915BT3G Features

  • 3.9V nominal zener voltage.
  • 3W power dissipation at 75°C lead temperature.
  • ±5% tolerance for precise regulation.
  • ESD rating Class 3 (>16kV) HBM.
  • Surface mount SMB package.

1SMB5915BT3G Applications

  • Voltage regulation in power supplies.
  • Overvoltage protection circuits.
  • Reference voltage generation.
  • Consumer and industrial electronics.

1SMB5915BT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the zener voltage of the 1SMB5915BT3G?

The zener voltage is 3.9V.

What is the power rating of this diode?

The power rating is 3W at a lead temperature of 75°C, and 550mW at 25°C ambient.

What is the package type?

The package is DO-214AA (SMB), surface mount.

What is the operating temperature range?

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

Is this device RoHS compliant?

The datasheet states it is Pb-Free, and the existing database indicates RoHS3 compliance, though this is unverified.

What is the forward voltage?

The forward voltage is 1.5V at 200mA.

What is the ESD rating?

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

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