SZMMSZ5242ET1G On Semiconductor SZMMSZ5242ET1G is a 12V Zener diode rated for 500mW power dissipation in a SOD-123 surface mount package.
Mfr Part #:

SZMMSZ5242ET1G

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
On Semiconductor SZMMSZ5242ET1G is a 12V Zener diode rated for 500mW power dissipation in a SOD-123 surface mount package.
✓ Total Stock: 475,271 pcs
$ Price Range: $0.08 - $0.44

SZMMSZ5242ET1G Available from 3 distributors

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✓ Non-Authorised
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468,000 pcs
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7,020 pcs
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251 pcs
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SZMMSZ5242ET1G Specifications Quick View

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

SZMMSZ5242ET1G Description

Short technical summary and product information.

The On Semiconductor SZMMSZ5242ET1G is a Zener voltage regulator diode designed for general-purpose voltage regulation and clamping applications. It offers a nominal Zener voltage of 12V with a tolerance of ±5%, and a continuous power dissipation of 500mW on standard FR-4 or FR-5 boards. The device features a low forward voltage of 900mV at 10mA and a maximum reverse leakage current of 1µA at 9.1V.

 

This Zener diode is housed in a compact SOD-123 surface mount package, making it suitable for high-density automated assembly. It supports an operating temperature range of -55°C to 150°C and is rated for peak power dissipation of 225W under non-repetitive 8x20µs pulses. The part is ESD rated to Class 3 (>16kV) per the Human Body Model and meets UL 94 V-0 flammability requirements.

 

Designed for medium-current applications, the SZMMSZ5242ET1G is ideal for voltage reference, overvoltage protection, and waveform clipping circuits. The SZ prefix indicates automotive qualification (AEC-Q101) and PPAP capability, making it suitable for automotive and other high-reliability applications.

SZMMSZ5242ET1G Quick Information

Product Type: Zener Diode
Series: MMSZ52xxET1G
Canonical Name: On Semiconductor SZMMSZ5242ET1G Zener Diode, 12V, 500mW, SOD-123
Subcategory: Single Zener Diode

SZMMSZ5242ET1G Compliance

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

SZMMSZ5242ET1G Estimated Pricing

Qty Low High
1+ $0.44 $0.44
10+ $0.27 $0.27
100+ $0.18 $0.18
500+ $0.14 $0.14
1,000+ $0.12 $0.12
3,000+ $0.10 $0.10
6,000+ $0.09 $0.09
9,000+ $0.08 $0.08

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

SZMMSZ5242ET1G Features

  • 12V nominal Zener voltage with ±5% tolerance.
  • 500mW power dissipation on FR-4/FR-5 board.
  • SOD-123 surface mount package for automated assembly.
  • ESD rating Class 3 (>16kV) per Human Body Model.
  • AEC-Q101 qualified for automotive applications.

SZMMSZ5242ET1G Applications

  • Voltage regulation in power supply circuits.
  • Overvoltage protection for sensitive electronics.
  • Waveform clipping and clamping circuits.
  • Automotive electronic control modules.

SZMMSZ5242ET1G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the Zener voltage of the SZMMSZ5242ET1G?

The nominal Zener voltage is 12V with a tolerance of ±5%.

What is the power dissipation rating?

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

What package is this Zener diode available in?

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

What is the operating temperature range?

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

Is this part RoHS compliant?

The part is marked as RoHS3 compliant and Pb-Free (suffix G indicates Pb-Free).

What is the forward voltage at 10mA?

The typical forward voltage is 900mV at 10mA.

What is the maximum reverse leakage current?

The maximum reverse leakage current is 1µA at 9.1V.

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