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SZ1SMA5918BT3G Surface mount Zener diode, 5.1V nominal, 1.5W power dissipation, ±5% tolerance, in DO-214AC (SMA) package.
Mfr Part #:

SZ1SMA5918BT3G

Available from 5 distributors
Mfr Name: On Semiconductor
On Semiconductor
Surface mount Zener diode, 5.1V nominal, 1.5W power dissipation, ±5% tolerance, in DO-214AC (SMA) package.
Total Stock: 164,861 pcs
$ Price Range: $0.31 - $1.15

SZ1SMA5918BT3G Available from 5 distributors

Authorised
Non-Authorised

SZ1SMA5918BT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
AEC-Q101
AEC-Q101 Qualified
Automotive Grade
Current
ESD Rating
Flammability Rating
Halogen Free
Impedance (Max) (Zzt)
Mounting Type
Operating Temperature
Polarity
Power
SVHC Present
Standard Package Quantity
Storage Temperature
Supplier Device Package
Tape & Reel
Thermal Resistance Junction-to-Ambient
Thermal Resistance, Junction to Lead
Tolerance
Voltage

SZ1SMA5918BT3G Description

Short technical summary and product information.

The SZ1SMA5918BT3G is a 1.5W surface mount Zener voltage regulator diode from On Semiconductor, part of the 1SMA59xxBT3G series. It offers a nominal Zener voltage of 5.1V with ±5% tolerance. The device is housed in a void-free, transfer-molded plastic DO-214AC (SMA) package designed for surface mount assembly.

 

Key electrical specifications include a maximum impedance of 4 Ω at the Zener test current, a reverse leakage current of 2.5 µA at 2V, and a maximum forward voltage of 1.5V at 200mA. The diode is rated for an operating temperature range of -65°C to +150°C and features a thermal resistance of 50°C/W junction-to-lead and 250°C/W junction-to-ambient.

 

The SZ prefix indicates automotive qualification, with AEC-Q101 compliance and an ESD rating of Class 3 (>16 kV) per the Human Body Model. The package is Pb-free and rated UL 94 V-0 for flammability. Cathode polarity is indicated by a molded notch or band.

SZ1SMA5918BT3G Quick Information

Product Type: Zener Diode
Series: SZ1SMA59xxBT3G
Canonical Name: On Semiconductor SZ1SMA5918BT3G Zener Diode, 5.1V, 1.5W, SMA
Subcategory: Single Zener Diode

SZ1SMA5918BT3G Compliance

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

SZ1SMA5918BT3G Estimated Pricing

Qty Low High
1+ $1.15 $1.15
10+ $0.72 $0.72
100+ $0.37 $0.37
500+ $0.31 $0.31
5,000+ $0.31 $0.31

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

SZ1SMA5918BT3G Features

  • 5.1V nominal Zener voltage.
  • 1.5W power dissipation rating.
  • ±5% voltage tolerance.
  • AEC-Q101 qualified for automotive.
  • Surface mount SMA package.

SZ1SMA5918BT3G Applications

  • Voltage regulation in automotive modules.
  • Overvoltage protection circuits.
  • Voltage reference in power supplies.
  • Clamping in industrial control systems.

SZ1SMA5918BT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the power dissipation of the SZ1SMA5918BT3G?

The maximum DC power dissipation is 1.5W at a lead temperature of 75°C, derated 20 mW/°C above 75°C.

What is the Zener voltage tolerance?

The Zener voltage tolerance is ±5%.

What is the maximum impedance of this Zener diode?

The maximum impedance (Zzt) is 4 Ω at the Zener test current.

What is the reverse leakage current?

The reverse leakage current is 2.5 µA at a reverse voltage of 2V.

What is the forward voltage?

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

What is the operating temperature range?

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

Is this device AEC-Q101 qualified?

Yes, the SZ prefix indicates AEC-Q101 qualification for automotive applications.

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