SZ1SMB5921BT3G The SZ1SMB5921BT3G is a 6.8V Zener diode from On Semiconductor with 3W power dissipation and ±5% tolerance. It comes in a surface mount SMB package.
Mfr Part #:

SZ1SMB5921BT3G

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The SZ1SMB5921BT3G is a 6.8V Zener diode from On Semiconductor with 3W power dissipation and ±5% tolerance. It comes in a surface mount SMB package.
✓ Total Stock: 33,500 pcs
$ Price Range: $0.25 - $1.14

SZ1SMB5921BT3G Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
32,500 pcs
32500 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request On Request On Request On Request

SZ1SMB5921BT3G 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
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Tolerance
Voltage

SZ1SMB5921BT3G Description

Short technical summary and product information.

The SZ1SMB5921BT3G is a 6.8V Zener diode from On Semiconductor, part of the SZ1SMB59xxT3G series designed for automotive and high-reliability applications. It offers a nominal Zener voltage of 6.8V with ±5% tolerance and a maximum power dissipation of 3W. The device features a low typical Zener impedance of 2.5Ω, ensuring stable voltage regulation. Reverse leakage current is specified at 5µA maximum at 5.2V, and forward voltage is 1.5V maximum at 200mA.

 

This Zener diode is housed in a surface mount DO-214AA (SMB) package with modified L-bend leads, suitable for top-side or bottom-side circuit board mounting. It operates over a wide temperature range from -65°C to 150°C. The device is AEC-Q101 qualified and PPAP capable, meeting automotive standards. It also features an ESD rating of Class 3 (>16kV) per the Human Body Model, providing robust protection against electrostatic discharge.

 

The SZ1SMB5921BT3G is Pb-free and RoHS compliant (unverified), making it suitable for environmentally conscious designs. Typical applications include voltage regulation, overvoltage protection, and reference voltage generation in power supplies, automotive electronics, and portable devices.

SZ1SMB5921BT3G Quick Information

Product Type: Zener Diode
Series: SZ1SMB59xxT3G
Canonical Name: Zener Diode 6.8V 3W Surface Mount SMB
Subcategory: Single Zener Diode

SZ1SMB5921BT3G Compliance

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

SZ1SMB5921BT3G Estimated Pricing

Qty Low High
1+ $1.14 $1.14
10+ $0.71 $0.71
100+ $0.47 $0.47
500+ $0.36 $0.36
1,000+ $0.33 $0.33
2,500+ $0.27 $0.27
5,000+ $0.25 $0.25

Estimated market price range - modelled values for guidance only, not live distributor offers.

SZ1SMB5921BT3G Features

  • 6.8V nominal Zener voltage with ±5% tolerance.
  • 3W power dissipation in SMB package.
  • Low impedance of 2.5Ω for stable regulation.
  • AEC-Q101 qualified for automotive applications.
  • ESD rating Class 3 (>16kV) per HBM.

SZ1SMB5921BT3G Applications

  • Used for voltage regulation in power supplies.
  • Ideal for automotive electronics requiring AEC-Q101.
  • Suitable for overvoltage protection circuits.
  • Used in portable device power management.

SZ1SMB5921BT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the SZ1SMB5921BT3G?

The nominal Zener voltage is 6.8V.

What is the power dissipation rating of the SZ1SMB5921BT3G?

The maximum power dissipation is 3W.

What is the forward voltage of the SZ1SMB5921BT3G?

The maximum forward voltage is 1.5V at 200mA.

What is the package type of the SZ1SMB5921BT3G?

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

What is the tolerance of the SZ1SMB5921BT3G?

The Zener voltage tolerance is ±5%.

What is the operating temperature range of the SZ1SMB5921BT3G?

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

Is the SZ1SMB5921BT3G AEC-Q101 qualified?

Yes, the SZ1SMB59xxT3G series is AEC-Q101 qualified and PPAP capable.

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