SZ1SMA5937BT3G SZ1SMA5937BT3G is a 33V Zener diode from ON Semiconductor in a surface mount SMA package. It features 1.5W power dissipation, ±5% tolerance, and AEC-Q101 qualification.
Mfr Part #:

SZ1SMA5937BT3G

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
SZ1SMA5937BT3G is a 33V Zener diode from ON Semiconductor in a surface mount SMA package. It features 1.5W power dissipation, ±5% tolerance, and AEC-Q101 qualification.
Total Stock: 3,742 pcs
$ Price Range: $0.23 - $1.15

SZ1SMA5937BT3G Available from 2 distributors

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Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
3,072 pcs
3072 pcs On Request 1 On Request On Request 22+ On Request On Request
Non-Authorised Inventory information
670 pcs
670 pcs On Request 1 On Request On Request On Request On Request On Request

SZ1SMA5937BT3G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
AEC-Q101
Automotive Grade
Current
ESD Rating
Forward Voltage
Halogen Free
Impedance (Max) (Zzt)
Junction to Ambient Thermal Resistance
Junction to Lead Thermal Resistance
Mounting Type
Operating Temperature
Packaging Type
Power
Power Dissipation (Maximum) @ TA=25°C
Standard Package Quantity
Supplier Device Package
Tolerance
Voltage

SZ1SMA5937BT3G Description

Short technical summary and product information.

The SZ1SMA5937BT3G is a 33V Zener diode from ON Semiconductor, part of the SZ1SMA59xxBT3G series designed for voltage regulation in demanding applications. It offers a nominal zener voltage of 33V with ±5% tolerance and a maximum zener impedance of 33Ω. Power dissipation is rated at 1.5W when the lead temperature is held at 75°C (zero lead length), derating to 0.5W at an ambient temperature of 25°C. The device features a low forward voltage of 1.2V maximum at 200mA forward current and a reverse leakage current of 500nA maximum at 25.1V.

 

This Zener diode is qualified to AEC-Q101 for automotive applications and has an ESD rating of Class 3 (>16 kV) per the Human Body Model, making it robust for harsh environments. It operates over a temperature range of -65°C to +150°C and has a thermal resistance of 50°C/W junction-to-lead and 250°C/W junction-to-ambient.

 

The part is housed in a DO-214AC (SMA) surface mount package, which provides a low-profile, flat handling surface for accurate placement. It is supplied in tape and reel packaging with a standard quantity of 5000 pieces per reel. The device is RoHS compliant and Pb-free, with an MSL of 1 (unlimited).

SZ1SMA5937BT3G Quick Information

Product Type: Zener Diode
Series: SZ1SMA59xxBT3G
Canonical Name: SZ1SMA5937BT3G Zener Diode 33V ±5% 1.5W Surface Mount SMA
Subcategory: Single Zener Diode

SZ1SMA5937BT3G Compliance

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

SZ1SMA5937BT3G 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.

SZ1SMA5937BT3G Features

  • Zener voltage of 33V with ±5% tolerance.
  • Power dissipation of 1.5W at 75°C lead.
  • ESD rating over 16kV human body model.
  • AEC-Q101 qualified for automotive use.
  • Surface mount SMA package.

SZ1SMA5937BT3G Applications

  • Voltage regulation in automotive electronics.
  • Overvoltage protection circuits.
  • Voltage reference in power supplies.
  • ESD protection in sensitive circuits.

SZ1SMA5937BT3G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the zener voltage of SZ1SMA5937BT3G?

The nominal zener voltage is 33V with a tolerance of ±5%.

What is the forward voltage?

The maximum forward voltage is 1.2V at a forward current of 200mA.

What is the package type?

The device is packaged in DO-214AC (SMA) surface mount package.

What is the power dissipation rating?

Power dissipation is 1.5W at TL=75°C (zero lead length) and derates to 0.5W at TA=25°C.

What is the operating temperature range?

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

Is the device AEC-Q101 qualified?

Yes, the SZ prefix indicates it is AEC-Q101 qualified for automotive applications.

What is the ESD rating?

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

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