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SZMMSZ3V9T1G Zener diode with 3.9V nominal voltage, 500mW power dissipation, and ±5% tolerance in a SOD-123 surface mount package.
Mfr Part #:

SZMMSZ3V9T1G

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
Zener diode with 3.9V nominal voltage, 500mW power dissipation, and ±5% tolerance in a SOD-123 surface mount package.
✓ Total Stock: 1,300 pcs
$ Price Range: $0.14 - $0.53

SZMMSZ3V9T1G Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Flip Electronics ✓
Non-Authorised Inventory information
1,300 pcs
On Request
1300 pcs On Request 1 On Request On Request On Request On Request On Request
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SZMMSZ3V9T1G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Impedance (Max) (Zzt)
Mounting Type
Operating Temperature
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Termination Style
Tolerance
Voltage
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SZMMSZ3V9T1G Description

Short technical summary and product information.

The SZMMSZ3V9T1G is a 3.9V Zener voltage regulator diode from onsemi's SZMMSZxxxT1G series, designed for surface mount applications. It offers a nominal Zener voltage of 3.9V with ±5% tolerance and a maximum power dissipation of 500mW on FR-4 or FR-5 boards. The device features a maximum Zener impedance of 90Ω and a low reverse leakage current of 3µA at 1V.

 

This diode is housed in a compact SOD-123 plastic package, optimized for automated board assembly and high-density designs. It supports an operating temperature range of -55°C to 150°C and has a maximum forward voltage of 900mV at 10mA. The part is AEC-Q101 qualified and PPAP capable, making it suitable for automotive and other demanding applications.

 

With an ESD rating of Class 3 (>16kV) per the Human Body Model, the SZMMSZ3V9T1G provides robust protection against electrostatic discharge. The package is rated UL 94 V-0 for flammability and can withstand soldering temperatures up to 260°C for 10 seconds.

SZMMSZ3V9T1G Quick Information

Product Type: Zener Diode
Series: SZMMSZxxxT1G Series
Canonical Name: On Semiconductor SZMMSZ3V9T1G Zener Diode, 3.9V, 500mW, SOD-123
Subcategory: Single Zener Diode

SZMMSZ3V9T1G Compliance

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

SZMMSZ3V9T1G Estimated Pricing

Qty Low High
1+ $0.53 $0.53
10+ $0.32 $0.32
100+ $0.20 $0.20
500+ $0.16 $0.16
1,000+ $0.14 $0.14
3,000+ $0.14 $0.14

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

SZMMSZ3V9T1G Features

  • 3.9V nominal Zener voltage with ±5% tolerance.
  • 500mW power dissipation on FR-4 or FR-5 board.
  • Surface mount SOD-123 package for automated assembly.
  • AEC-Q101 qualified for automotive applications.
  • ESD rating Class 3 (>16kV) per Human Body Model.

SZMMSZ3V9T1G Applications

  • Voltage regulation in automotive electronic modules.
  • Overvoltage protection in compact power supplies.
  • Clamping and reference circuits in industrial controls.
  • General purpose Zener regulation in portable devices.

SZMMSZ3V9T1G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the SZMMSZ3V9T1G?

The nominal Zener voltage is 3.9V with a tolerance of ±5%.

What is the maximum power dissipation?

The maximum power dissipation is 500mW on FR-4 or FR-5 board.

What package is this diode available in?

It is available in a surface mount SOD-123 package.

What is the operating temperature range?

The operating temperature range is -55°C to 150°C.

Is this part AEC-Q101 qualified?

Yes, the SZMMSZ3V9T1G is AEC-Q101 qualified and PPAP capable.

What is the maximum forward voltage?

The maximum forward voltage is 900mV at a forward current of 10mA.

What is the ESD rating?

The ESD rating is Class 3, greater than 16kV per the Human Body Model.

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