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MMSZ5242BT1 The ON Semiconductor MMSZ5242BT1 is a 500 mW Zener diode in a SOD-123 surface mount package. It operates over a wide temperature range from -55°C to 150°C.
Mfr Part #:

MMSZ5242BT1

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The ON Semiconductor MMSZ5242BT1 is a 500 mW Zener diode in a SOD-123 surface mount package. It operates over a wide temperature range from -55°C to 150°C.
✓ Total Stock: 5,380 pcs
$ Price Range: $0.99

MMSZ5242BT1 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Bristol Electronics ✓
Non-Authorised Inventory information
2,930 pcs
On Request
2930 pcs On Request 1 On Request On Request On Request On Request 2026-04-21 11:15:10
Partservice ✓
Non-Authorised Inventory information
2,450 pcs
On Request
2450 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MMSZ5242BT1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Impedance (Max) (Zzt)
Industrial Grade
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Power
Supplier Device Package
Tape & Reel
Tolerance
Voltage
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MMSZ5242BT1 Description

Short technical summary and product information.

The ON Semiconductor MMSZ5242BT1 is a Zener voltage regulator designed for general-purpose, medium-current applications. It is housed in a compact SOD-123 surface mount package, suitable for high-density circuit designs and automated board assembly.

 

This device features a power dissipation rating of 500 mW on an FR-4 or FR-5 board. It offers a wide Zener reverse voltage range and is specified with the device junction in thermal equilibrium. The operating temperature range is -55°C to 150°C, ensuring reliable performance in various environmental conditions.

 

The MMSZ5242BT1 is designed for optimal automated board assembly and provides a convenient alternative to leadless package styles. Its corrosion-resistant finish and easily solderable finish facilitate integration into electronic systems. The polarity is indicated by a band on the cathode.

 

Key electrical characteristics include a Zener impedance of 30 Ω at 10 mA and a reverse leakage current of 1 µA at 9.1 V. The diode also exhibits an ESD rating of Class 3 (> 16 kV) per the Human Body Model.

MMSZ5242BT1 Quick Information

Product Type: Zener Voltage Regulator
Series: MMSZ52xxBT1G
Canonical Name: MMSZ5242BT1 Zener Voltage Regulator
Subcategory: Single Zener Diodes

MMSZ5242BT1 Compliance

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

MMSZ5242BT1 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

MMSZ5242BT1 Features

  • 500 mW power rating on FR-4 board.
  • Compact SOD-123 surface mount package.
  • Wide operating temperature range: -55°C to 150°C.
  • High ESD rating: Class 3 (> 16 kV).
  • Pb-Free and RoHS3 compliant.

MMSZ5242BT1 Applications

  • Used for voltage regulation circuits.
  • Suitable for general purpose applications.
  • Ideal for medium current requirements.
  • Designed for automated board assembly.
  • Compact size for high density designs.

MMSZ5242BT1 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the power dissipation of the MMSZ5242BT1?

The power dissipation is 500 mW.

What is the operating temperature range for the MMSZ5242BT1?

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

What package type is the MMSZ5242BT1 available in?

The MMSZ5242BT1 is available in a SOD-123 package.

What is the Zener impedance of the MMSZ5242BT1?

The Zener impedance is 30 Ω at 10 mA.

Is the MMSZ5242BT1 lead-free and RoHS compliant?

Yes, the MMSZ5242BT1 is Pb-Free and RoHS3 compliant.

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