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1SMB5921BT3G On Semiconductor 1SMB5921BT3G is a 6.8V Zener diode with ±5% tolerance and 3W power rating. It comes in a surface mount SMB package.
Mfr Part #:

1SMB5921BT3G

Available from 6 distributors
Mfr Name: On Semiconductor
On Semiconductor
On Semiconductor 1SMB5921BT3G is a 6.8V Zener diode with ±5% tolerance and 3W power rating. It comes in a surface mount SMB package.
Total Stock: 28,155 pcs

1SMB5921BT3G Available from 6 distributors

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1SMB5921BT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
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Current
Current - Reverse Leakage @ Vr
ESD Rating
Flammability
Flammability Rating
Halogen Free
Impedance (Max) (Zzt)
Industrial Grade
Lead Free (Pb-Free)
Lead Style
Maximum Lead Temperature for Soldering
Maximum Steady State Power Dissipation @ TL=75°C
Maximum steady state power dissipation (TA=25°C)
Military Grade
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Operating Temperature - Junction
Package / Case
Polarity
Power
Power - Max
Standard Package Quantity
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Supplier Device Package
Tape & Reel
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Tolerance
Voltage
Voltage - Forward (Vf) (Max) @ If
Voltage - Zener (Nom) (Vz)

1SMB5921BT3G Description

Short technical summary and product information.

The 1SMB5921BT3G is part of On Semiconductor's 1SMB59xxBT3G series of 3W surface mount Zener voltage regulators. It features a nominal Zener voltage of 6.8V with a ±5% tolerance.

 

Electrical characteristics include a maximum impedance of 2.5Ω, reverse leakage current of 5µA at 5.2V, and forward voltage of 1.5V at 200mA. The device boasts an ESD rating of >16kV per Human Body Model (Class 3).

 

Thermally, it can dissipate 3W at lead temperature 75°C (derated linearly) and 550mW at ambient 25°C. Junction-to-lead thermal resistance is 25°C/W, junction-to-ambient 226°C/W. Operating junction temperature ranges from -65°C to +150°C.

 

Packaged in a DO-214AA (SMB) surface mount case with Modified L-Bend leads, the device is RoHS compliant (unverified) with UL 94 V-0 flammability rating. Supplied in tape and reel with 2500 units per reel.

1SMB5921BT3G Quick Information

Product Type: Zener Diode
Series: 1SMB59xxBT3G Series
Canonical Name: 1SMB5921BT3G Zener Diode, 6.8V, ±5%, 3W, SMB
Subcategory: Single Zener Diode

1SMB5921BT3G Compliance

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

1SMB5921BT3G Features

  • 6.8V Zener voltage ±5% tolerance.
  • 3W power dissipation at lead 75°C.
  • Low impedance of 2.5 ohms typical.
  • ESD rated above 16 kV HBM.
  • Surface mount SMB DO-214AA package.

1SMB5921BT3G Applications

  • Voltage regulation in DC power supplies.
  • Overvoltage protection in circuits.
  • Automotive and industrial electronics.
  • General purpose Zener applications.

1SMB5921BT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the nominal Zener voltage of the 1SMB5921BT3G?

6.8V.

What is the voltage tolerance?

±5%.

What is the maximum power dissipation?

3W at lead temperature 75°C (derated linearly) and 550mW at ambient 25°C.

What package type does this Zener diode use?

DO-214AA (SMB) surface mount package.

What is the forward voltage at 200mA?

1.5V.

What is the reverse leakage current?

5µA at 5.2V.

What is the operating junction temperature range?

-65°C to 150°C.

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