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ONSEMI MMSZ43T1G Zener Diode

The MMSZ43T1G is a surface-mount Zener diode offering reliable voltage regulation in a compact SOD-123 package. It features a wide reverse voltage range from 2.4 V to 56 V, with a 500 mW power dissipation rating suitable for high-density circuit boards. Designed for automated assembly, the device has a corrosion-resistant finish, a classified ESD rating of Class 3 (>16 kV), and is available in Pb-Free versions. Its robust ceramic case ensures durability, making it ideal for voltage stabilization in various electronic applications.

Authorized Distributors
Source:Newark
Part No:MMSZ43T1G
Stock:15774
Inv Date:06-10-2026
Price: Unit price: $0.144
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Source:DigiKey
Part No:MMSZ43T1G
Stock:1808
Inv Date:06-10-2026
Price: Unit price: $0.03033
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Part No:MMSZ43T1G
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.17
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Part No:MMSZ43T1G
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.08
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Part No:MMSZ43T1G
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.0349
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Part No:MMSZ43T1G
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.0349
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Part No:MMSZ43T1G
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.0212
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Source:Arrow EU
Part No:MMSZ43T1G
Stock:42000
Inv Date:06-11-2026
Price: N/A
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ONSEMI MMSZ43T1G Zener Diode Specifications:

  • Power Dissipation: 500 mW on FR-4 or FR-5 board
  • Reverse Voltage Range: 2.4 V to 56 V
  • Package: SOD-123, surface mount
  • Maximum Case Temperature for Soldering: 260°C for 10 seconds
  • Polarity: Cathode indicated by a polarity band
  • ESD Rating: Class 3 (>16 kV) per Human Body Model
  • Case Material: Void-free, transfer-molded, thermosetting plastic
  • Finish: Corrosion resistant, easily Solderable
  • Max Junction Temperature: +150°C
  • Maximum Power: 500 mW
  • Thermal Resistance Junction-to-Ambient: 340°C/W
  • Junction-to-Lead Resistance: 150°C/W
  • Mechanical Dimensions: Standard SOD-123 package size
  • Operating Temperature Range: -85°C to +150°C
  • Flammability Rating: UL 94 V-0

Buy the ON Semiconductor Series MMSZ Series Zener Voltage Regulators: MMSZ43T1G

Purchase the ON Semiconductor Series MMSZ43T1G Zener diode online today and enjoy fast delivery. This compact surface-mount device offers a wide voltage range from 2.4 V to 56 V and a power rating of 500 mW, providing dependable voltage stabilization for high-density electronic circuits. Its corrosion-resistant finish and Class 3 ESD rating enhance durability and reliability while enabling efficient automated board assembly. Whether for voltage regulation or transient suppression, this diode delivers consistent performance, making it the ideal choice for professional electronic design and manufacturing.

Order your ON Semiconductor Series MMSZ43T1G Zener diode today and ensure reliable voltage regulation in your high-density applications.

Frequently Asked Questions

Where can I buy ONSEMI MMSZ43T1G?

You can click on the BUY or RFQ button to purchase MMSZ43T1G from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part MMSZ43T1G?

You can download the MMSZ43T1G datasheet or visit the ONSEMI website for support.

Who is the manufacturer of MMSZ43T1G?

ONSEMI

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