MMSZ5242BT1G

Zener Voltage Regulator

The MMSZ5242BT1G is a zener voltage regulator from onsemi. View the full MMSZ5242BT1G datasheet below including key specifications, pinout, absolute maximum ratings.

Official MMSZ5242BT1G datasheet (PDF) — the source this page was extracted from.

Manufacturer

onsemi

MMSZ5242BT1G Key Specifications

Parameter	Value
Reverse Leakage Current	1 µA @ 9.1 V
Zener Impedance	30 Ohms Ω
Mounting Type	Surface Mount
Operating Temperature	-55°C ~ 150°C
Package / Case	SOD-123
Power (Max)	500 mW
Supplier Device Package	SOD-123
Tolerance	±5%
Forward Voltage (Max)	900 mV @ 10 mA
Zener Voltage	12 V

MMSZ5242BT1G Overview

Part: MMSZ52xxxT1G Series, SZMMSZ52xxxT1G Series — onsemi

Type: Zener Voltage Regulator

Description: 500 mW, SOD-123 surface mount Zener diode series with a wide Zener reverse voltage range from 2.4 V to 110 V.

Operating Conditions:

Zener voltage range: 2.4 V to 110 V
Operating temperature: -55 to +150 °C
Forward current: 10 mA (for V_F specification)

Absolute Maximum Ratings:

Max junction/storage temperature: +150 °C

Key Specs:

Total Power Dissipation (PD): 500 mW (on FR-5 Board, @TL = 75 °C)
Zener Voltage (Vz): 2.4 V to 110 V (Nominal, @IZT)
Forward Voltage (VF): 0.95 V Max (@ IF = 10 mA)
Zener Impedance (ZZT): 5 Ω to 750 Ω (at IZT, varies by part)
Reverse Leakage Current (IR): 0.1 μA to 100 μA (at VR, varies by part)
Thermal Resistance, Junction-to-Ambient (RθJA): 340 °C/W
Thermal Resistance, Junction-to-Lead (RθJL): 150 °C/W
ESD Rating: Class 3 (> 16 kV) per Human Body Model

Features:

Wide Zener Reverse Voltage Range - 2.4 V to 110 V
500 mW Rating on FR-4 or FR-5 Board
Package Designed for Optimal Automated Board Assembly
General Purpose, Medium Current
Small Package Size for High Density Applications
Pb-Free Devices
SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q101 Qualified and PPAP Capable

Applications:

General Purpose, Medium Current
High Density Applications
Automotive and Other Applications (SZMMSZ prefix)

Package:

SOD-123 (Pb-Free), 2-lead, 1.60x2.69x1.16 mm

MMSZ5242BT1G Features

Wide Zener Reverse Voltage Range -2.4 V to 110 V @ Thermal Equilibrium*
500 mW Rating on FR -4 or FR -5 Board
Package Designed for Optimal Automated Board Assembly
General Purpose, Medium Current
Small Package Size for High Density Applications
ESD Rating of Class 3 (> 16 kV) per Human Body Model
These are Pb -Free Devices
SZ Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC -Q101 Qualified and PPAP Capable

MMSZ5242BT1G Pin Configuration

MMSZ5242BT1G — SOD-123 Pinout

Pin Number	Pin Name	Type	Description
1	Cathode	–	Cathode (marked with polarity band)
2	Anode	+	Anode

Notes

Package: SOD-123 (2-lead surface mount)
Device Type: Zener Diode Voltage Regulator, 500 mW
Zener Voltage (MMSZ5242BT1G): 12 V nominal (11.40–12.60 V @ IZT = 20 mA)
Polarity: Cathode is indicated by a polarity band on the package body
This is a simple 2-pin diode; no additional pins or functions exist

MMSZ5242BT1G Absolute Maximum Ratings

Rating	Symbol	Max	Units
Total Power Dissipation on FR - 5 Board, (Note 1)@T L = 75 ° C Derated above 75 ° C	P D	500 6.7	mW mW/ ° C
Thermal Resistance, Junction - to - Ambient (Note 2)	R q JA	340	° C/W
Thermal Resistance, Junction - to - Lead (Note 2)	R q JL	150	° C/W
Junction and Storage Temperature Range	T J , T stg	- 55 to +150	° C

FR -5 = 3.5 X 1.5 inches, using the minimum recommended footprint.
Thermal Resistance measurement obtained via infrared Scan Method.

*For additional info on thermal equilibrium, please download, onsemi TVS/Zener Theory and Design Considerations Handbook, HBD854/D.

SOD -123 CASE 425 STYLE 1

SOD -123 CASE 425 STYLE 1

More part numbers on this datasheet

Their pages show this same datasheet. Some are linked through their part family rather than checked part by part, so confirm the exact part in the ordering information.

MMSZ5242BT1G/T3G

More datasheets

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