Skip to the content
PCBKitNew board
12

MMSZ4684

onsemi

-55℃~+150℃ 1 Independent 3.13V~3.47V 3.3V 500mW 7.5uA@1.5V SOD-123 Zener Diodes ROHS

Extended
DatasheetJLCPCBLCSConsemi/MMSZ4684
Category
Zener Diodes
Package
SOD-123
Pins
5

Overview

The MMSZ4684 is a zener Diode made by onsemi in a SOD-123 package with 2 pins. -55℃~+150℃ 1 Independent 3.13V~3.47V 3.3V 500mW 7.5uA@1.5V 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. 8,766 are in stock at JLCPCB (part C24672).

Symbol

Device:D_ZenerFrom KiCad's library

Footprint

12
Diode_SMD:D_SOD-123From KiCad's library

From the datasheet

3
Junction, hottest
150 °C · maximum junction temperature · p. 1
Junction to air (SOD−123)
340 K/W · junction-to-ambient thermal resistance · p. 1
Forward voltage
900 mV · max at IF = 10 mA, TA = 25°C · p. 3

What it is and has

4
Power rating
500 mW on FR−4 or FR−5 board · p. 1
ESD rating
Class 3 (> 16 kV), Human Body Model · p. 1
Compliance
Pb−Free and RoHS compliant · p. 1
Flammability rating
UL 94 V−0 · p. 1

Specifications

11
ParameterConditionsAs printedPage
Total Power Dissipation on FR−5 Board PDTL = 75°C; FR−5 = 3.5 X 1.5 inches, using the minimum recommended footprintmax 500 mW1
Derated above 75°C PDFR−5 boardmax 6.7 mW/°C1
Thermal Resistance, Junction−to−Ambient RqJASOD−123; infrared Scan Methodmax 340 °C/W1
Thermal Resistance, Junction−to−Lead RqJLSOD−123; infrared Scan Methodmax 150 °C/W1
Junction and Storage Temperature Range TJ, TstgLower endpointmin -55 °C1
Junction and Storage Temperature Range TJ, TstgUpper endpointmax 150 °C1
Forward Voltage @ IF VFTA = 25°C, IF = 10 mAmax 0.9 V3
Zener Voltage (Note 3) VZMMSZ4684T1G; IZT = 50 mA as printed; nominal measured in thermal equilibrium at TL = 30°C ±1°Cmin 3.13 · typ 3.3 · max 3.47 Volts3
Reverse Current IZTMMSZ4684T1G; Zener voltage test currenttyp 50 mA3
Leakage Current IRMMSZ4684T1G; VR = 1.5 Volts; TA = 25°Cmax 7.5 mA3
Reverse Voltage VRMMSZ4684T1G; leakage current test voltagetyp 1.5 Volts3

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
MMSZ4684T1G
SOD−123 · 3.3 V nominal Zener voltage; CK device marking; Pb−Free; 3,000/Tape & Reel · p. 3

Parameters

9
Diode Configuration
1 Independent
Junction Temperature(Max)
150℃
Operating Junction Temperature Range
-55℃~+150℃
Pd - Power Dissipation
500mW
Reverse Leakage Current (Ir)
7.5uA@1.5V
Thermal Resistance(Junction to Ambient)
340℃/W
Voltage - Forward(Vf)
900mV
Zener Voltage(Nom)
3.3V
Zener Voltage(Range)
3.13V~3.47V

Order codes

2

Pinout

2
The pins of the MMSZ4684
PinNameType
1KPassive
2APassive

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/onsemi/MMSZ4684" title="MMSZ4684 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/onsemi/MMSZ4684.jpg" alt="MMSZ4684" width="1200" height="900">
A picture that opens the part, for a README
[![MMSZ4684](https://pcbkit.io/embed/parts/onsemi/MMSZ4684.jpg?size=s)](https://pcbkit.io/parts/onsemi/MMSZ4684)

Questions

Is there a KiCad symbol and footprint for the MMSZ4684?

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 MMSZ4684?

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

Where is the MMSZ4684 datasheet?

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

Where can I order the MMSZ4684?

JLCPCB lists it as part C24672, with 8,766 in stock; the sellers' links on this page open their listings.

What can replace the MMSZ4684?

Parts like it in the library: the BZT52B3V3 by hongjiacheng, the BZT52C3V3 by MDD, the MMSZ5226B by onsemi and the MM1Z3V3 by hongjiacheng. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Parts like it

8