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MMSZ12 on a board, in 3D

MMSZ12

onsemi

-55℃~+150℃ 1 Independent 100nA@8V 11.4V~12.6V 12V 25Ω 500mW ±5% SOD-123 Zener Diodes ROHS

Extended
DatasheetJLCPCBLCSConsemi/MMSZ12
Category
Zener Diodes
Package
SOD-123
Pins
2

Overview

The MMSZ12 is a zener Diode made by onsemi in a SOD-123 package with 2 pins. -55℃~+150℃ 1 Independent 100nA@8V 11.4V~12.6V 12V 25Ω 500mW ±5% SOD-123 Zener Diodes ROHS.

PCBKit's library has its KiCad symbol (Device:D_Zener, from KiCad's library) and its footprint (Diode_SMD:D_SOD-123, from KiCad's library), ready for a KiCad board. 6,364 are in stock at JLCPCB (part C72599).

Symbol

Device:D_ZenerFrom KiCad's library

Footprint

12
Diode_SMD:D_SOD-123From KiCad's library

From the datasheet

2
Junction, hottest
150 °C · Maximum junction temperature · p. 1
Junction to air (SOD−123)
340 K/W · Maximum junction-to-ambient thermal resistance, infrared scan method · p. 1

What it is and has

6
Power rating
500 mW on FR−4 or FR−5 board · p. 1
ESD rating
Class 3 (> 16 kV), Human Body Model · p. 1
Qualification
AEC−Q101 qualified and PPAP capable · p. 1
Flammability rating
UL 94 V−0 · p. 1
Nominal Zener voltage
12 V at IZT1 = 5 mA · p. 2
Zener voltage tolerance
±5% · p. 2

Specifications

12
ParameterConditionsAs printedPage
Total Power Dissipation on FR−5 Board PDTL = 75°C; FR−5 = 3.5 X 1.5 inchesmax 500 mW1
Derated above 75°C PDTotal Power Dissipation on FR−5 Boardmax 6.7 mW/°C1
Thermal Resistance, Junction−to−Ambient RqJASOD−123; measurement obtained via infrared Scan Methodmax 340 °C/W1
Thermal Resistance, Junction−to−Lead RqJLSOD−123; measurement obtained via infrared Scan Methodmax 150 °C/W1
Junction and Storage Temperature Range TJ, Tstgmin -55 · max 150 °C1
Forward Voltage @ IF VFTA = 25°C unless otherwise noted; IF = 10 mA; introductory headingmax 0.95 V2
Forward Voltage @ IF VFTA = 25°C unless otherwise noted; IF = 10 mA; device-table headingmax 0.9 V2
Reverse Zener Voltage @ IZT VZ1MMSZ12T1G; TA = 25°C; IZT1 = 5 mA; PW = 1 ms; Nom = 12 Vmin 11.4 · max 12.6 Volts2
Maximum Zener Impedance @ IZT ZZT1MMSZ12T1G; TA = 25°C; IZT1 = 5 mA; IZ(AC) = 0.1 IZ(DC); AC frequency = 1 kHzmax 25 W2
Reverse Zener Voltage @ IZT VZ2MMSZ12T1G; TA = 25°C; IZT2 = 1 mA; PW = 1 msmin 11.2 · max 12.7 Volts2
Maximum Zener Impedance @ IZT ZZT2MMSZ12T1G; TA = 25°C; IZT2 = 1 mA; IZ(AC) = 0.1 IZ(DC); AC frequency = 1 kHzmax 150 W2
Max Reverse Leakage Current IRMMSZ12T1G; TA = 25°C; VR = 8 Voltsmax 0.1 mA2

Pins, by the datasheet

2
1 CATHODE
Cathode, indicated by polarity band. · p. 6
2 ANODE
Anode. · p. 6

Ordering codes, by the datasheet

1
MMSZ12T1G
SOD−123 · 12 V nominal Zener voltage; device marking A3; Pb−Free; 3,000 per Tape & Reel · p. 2

Parameters

10
Diode Configuration
1 Independent
Impedance(Zzt)
25Ω
Junction Temperature(Max)
150℃
Operating Junction Temperature Range
-55℃~+150℃
Pd - Power Dissipation
500mW
Reverse Leakage Current (Ir)
100nA@8V
Thermal Resistance(Junction to Ambient)
340℃/W
Tolerance
±5%
Zener Voltage(Nom)
12V
Zener Voltage(Range)
11.4V~12.6V

Order codes

1

Pinout

2
The pins of the MMSZ12
PinNameType
1KPassive
2APassive

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Questions

Is there a KiCad symbol and footprint for the MMSZ12?

Yes. The symbol is Device:D_Zener and the footprint Diode_SMD:D_SOD-123, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MMSZ12?

SOD-123, with 2 pins. Its footprint is drawn on this page.

Where is the MMSZ12 datasheet?

onsemi publishes it: the Datasheet link on this page opens it.

Where can I order the MMSZ12?

JLCPCB lists it as part C72599, with 6,364 in stock; the sellers' links on this page open their listings.

What can replace the MMSZ12?

Parts like it in the library: the BZT52C12 by MDD, the MMSZ5242B by onsemi, the MM1Z12 by STMicroelectronics and the BZT52-B12X by Nexperia. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

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