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1SMB5946BT3G 1SMB5946BT3G is a 75V, 3W Zener diode from onsemi in a surface mount DO-214AA (SMB) package. It offers ±5% tolerance and a maximum impedance of 140Ω.
Mfr Part #:

1SMB5946BT3G

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
1SMB5946BT3G is a 75V, 3W Zener diode from onsemi in a surface mount DO-214AA (SMB) package. It offers ±5% tolerance and a maximum impedance of 140Ω.
Total Stock: 84,492 pcs

1SMB5946BT3G Available from 3 distributors

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81,020 pcs
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3,421 pcs
3421 pcs On Request 1 On Request On Request On Request On Request On Request
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51 pcs
51 pcs On Request 1 On Request On Request On Request On Request On Request

1SMB5946BT3G 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)
Mounting Type
Operating Temperature
Operating Temperature Range
Package / Case
Polarity
Power
Power Dissipation
Reverse Leakage Current
SVHC Present
Standard Package Quantity
Supplier Device Package
Tape & Reel
Tolerance
Voltage
Zener Impedance (Max) (Zzt)
Zener Voltage
Zener Voltage Tolerance

1SMB5946BT3G Description

Short technical summary and product information.

The 1SMB5946BT3G is a 75V Zener diode from the 1SMB59xxBT3G series by onsemi, designed for 3W power dissipation in surface mount applications. It features a Zener voltage tolerance of ±5% and a maximum impedance of 140Ω. Reverse leakage current is 1µA at 56V, and forward voltage is 1.5V at 200mA. The device operates over a temperature range of -65°C to 150°C and has an ESD rating of Class 3 (>16 kV) per the Human Body Model. The DO-214AA (SMB) package is void-free, transfer-molded plastic with UL 94 V-0 flammability rating and cathode band polarity marking. This Pb-Free device is suitable for voltage regulation, overvoltage protection, and voltage clamping circuits. It is supplied in tape and reel packaging with a standard quantity of 2,500 units per reel.

1SMB5946BT3G Quick Information

Product Type: Zener Diode
Series: 1SMB59xxBT3G
Canonical Name: 1SMB5946BT3G Zener Diode, 75V, 3W, SMB
Subcategory: Single Zener Diode

1SMB5946BT3G Compliance

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

1SMB5946BT3G Features

  • 75V Zener voltage with ±5% tolerance.
  • 3W power dissipation at 75°C lead temperature.
  • Surface mount DO-214AA (SMB) package.
  • ESD rating Class 3 (>16 kV) per HBM.
  • Operating temperature range -65°C to 150°C.

1SMB5946BT3G Applications

  • Voltage regulation in power supplies.
  • Overvoltage protection circuits.
  • Voltage clamping applications.
  • General purpose Zener diode functions.

1SMB5946BT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of 1SMB5946BT3G?

The Zener voltage is 75V at a tolerance of ±5%.

What is the power dissipation rating?

The maximum power dissipation is 3W at a lead temperature of 75°C, derating above 75°C at 40 mW/°C.

What is the forward voltage drop?

The forward voltage is 1.5V at a forward current of 200 mA.

What is the package type?

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

What is the operating temperature range?

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

What is the ESD rating?

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

Is the device RoHS compliant?

Yes, the device is RoHS3 compliant and Pb-Free as confirmed in the datasheet.

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