SZ1SMA5945BT3G Zener diode, 68V nominal breakdown, 1.5W power dissipation, ±5% tolerance, in DO-214AC SMA surface mount package.
Mfr Part #:

SZ1SMA5945BT3G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode, 68V nominal breakdown, 1.5W power dissipation, ±5% tolerance, in DO-214AC SMA surface mount package.
Total Stock: 1,000 pcs
$ Price Range: $0.23 - $1.15

SZ1SMA5945BT3G Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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1,000 pcs
1000 pcs On Request 1 On Request On Request On Request On Request On Request

SZ1SMA5945BT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
AEC-Q101
Automotive Grade
Current
ESD Rating
Flammability Rating
Forward Voltage
Halogen Free
Impedance (Max) (Zzt)
Industrial Grade
Maximum Case Temperature for Soldering
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Packaging Type
Power
SVHC Present
Standard Package Quantity
Storage Temperature
Supplier Device Package
Tape & Reel
Tolerance
Voltage

SZ1SMA5945BT3G Description

Short technical summary and product information.

The SZ1SMA5945BT3G is a 68V Zener diode from On Semiconductor, part of the 1SMA59xxBT3G series. It offers a power dissipation of 1.5W (at TL=75°C) and is housed in a compact DO-214AC (SMA) surface mount package. The device features a ±5% tolerance on the Zener voltage and a low forward voltage of 1.5V at 200mA.

 

This diode is AEC-Q101 qualified, making it suitable for automotive applications. It also boasts an ESD rating of Class 3 (>16 kV) per the Human Body Model, providing robust protection in harsh environments. The operating temperature range spans -65°C to 150°C, and the package is rated UL 94 V-0 for flammability.

 

Typical applications include voltage regulation, overvoltage protection, and voltage reference circuits in power supplies, automotive electronics, and industrial systems. The device is supplied in tape and reel packaging with a standard quantity of 5000 units.

SZ1SMA5945BT3G Quick Information

Product Type: Zener Diode
Series: SZ1SMA59xxBT3G
Canonical Name: SZ1SMA5945BT3G Zener Diode 68V 1.5W SMA
Subcategory: Single Zener Diode

SZ1SMA5945BT3G Compliance

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

SZ1SMA5945BT3G Estimated Pricing

Qty Low High
1+ $1.15 $1.15
10+ $0.72 $0.72
100+ $0.47 $0.47
500+ $0.36 $0.36
1,000+ $0.33 $0.33
2,000+ $0.30 $0.30
5,000+ $0.25 $0.25
10,000+ $0.23 $0.23

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

SZ1SMA5945BT3G Features

  • 68V nominal Zener voltage, ±5% tolerance.
  • 1.5W power dissipation at 75°C lead temperature.
  • ESD rating >16 kV per Human Body Model.
  • AEC-Q101 qualified for automotive applications.
  • Surface mount package DO-214AC (SMA).

SZ1SMA5945BT3G Applications

  • Voltage regulation and clamping circuits.
  • Overvoltage protection in automotive electronics.
  • Voltage reference in power supplies.
  • Surge suppression applications.

SZ1SMA5945BT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the zener voltage of SZ1SMA5945BT3G?

68 V nominal.

What is the forward voltage?

1.5 V maximum at 200 mA.

What package is this diode available in?

DO-214AC (SMA) surface mount package.

What is the power dissipation?

1.5 W maximum at TL=75°C.

Is this device AEC-Q101 qualified?

Yes, the SZ prefix denotes automotive qualification.

What is the ESD rating?

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

What is the operating temperature range?

-65°C to 150°C.

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