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1SMB5937BT3G Zener voltage regulator diode with 33V nominal voltage and 3W power dissipation in a surface mount SMB package.
Mfr Part #:

1SMB5937BT3G

Available from 8 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener voltage regulator diode with 33V nominal voltage and 3W power dissipation in a surface mount SMB package.
✓ Total Stock: 111,091 pcs

1SMB5937BT3G Available from 8 distributors

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1SMB5937BT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Impedance (Max) (Zzt)
Lead Style
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Power
Power Dissipation
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Tolerance
Voltage
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1SMB5937BT3G Description

Short technical summary and product information.

The 1SMB5937BT3G is a 3W plastic surface mount Zener voltage regulator diode from onsemi (formerly On Semiconductor). This device offers a nominal Zener voltage of 33V with ±5% tolerance and a maximum Zener impedance of 33Ω at test current. It is designed for general purpose voltage regulation and overvoltage protection applications.

 

Key electrical characteristics include a reverse leakage current of 1 µA at 25.1V reverse voltage, a forward voltage of 1.5V at 200mA, and an ESD rating of Class 3 (>16 kV) per Human Body Model. The device can dissipate up to 3W steady state at a lead temperature of 75°C (zero lead length), with a junction-to-lead thermal resistance of 25°C/W and junction-to-ambient thermal resistance of 226°C/W on standard FR-4 board.

 

The 1SMB5937BT3G is housed in a surface mount DO-214AA (SMB) package with modified L-bend leads for improved solder joint reliability. The case is flame retardant rated UL 94 V-0 and compatible with lead-free soldering processes (260°C for 10 seconds maximum). The device is Pb-free and RoHS compliant, with an operating temperature range of -65°C to +150°C. Tape and reel packaging is standard with 2500 units per reel.

1SMB5937BT3G Quick Information

Product Type: Zener Diode
Series: 1SMB59xxBT3G Series
Canonical Name: Zener Diode 33V 3W Surface Mount SMB
Subcategory: Zener - Single

1SMB5937BT3G Compliance

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

1SMB5937BT3G Features

  • 33V nominal Zener voltage with ±5% tolerance.
  • 3W power dissipation at lead temperature 75°C.
  • ESD rated Class 3 (>16 kV) HBM.
  • Surface mount SMB package with modified L-bend leads.
  • Lead-free and RoHS compliant.

1SMB5937BT3G Applications

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

1SMB5937BT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of 1SMB5937BT3G?

33V nominal with ±5% tolerance.

What is the forward voltage of the device?

1.5V at 200mA forward current.

What package is the 1SMB5937BT3G available in?

Surface mount DO-214AA (SMB) package.

What is the maximum power dissipation?

3W at lead temperature 75°C (zero lead length).

What is the ESD rating?

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

What is the reverse leakage current?

1 µA at 25.1V reverse voltage.

What is the operating temperature range?

-65°C to 150°C.

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