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ONSEMI MMSZ18ET1G Zener Diode

The MMSZ18ET1G is a 500 mW surface-mount Zener diode in a SOD-123 package, ideal for voltage regulation and surge suppression in high-density applications. It features a wide Zener voltage range from 2.4 V to 56 V, with a peak power dissipation of 225 W for 8 x 20 μs pulses, and is qualified for automotive and industrial uses. The device offers excellent ESD protection (> 16 kV), corrosion-resistant finish, and complies with UL 94 V-0 flammability rating, ensuring reliable performance in various electronic circuits.

Authorized Distributors
Source:Newark
Part No:MMSZ18ET1G
Stock:328
Inv Date:06-10-2026
Price: Unit price: $0.103
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Source:DigiKey
Part No:MMSZ18ET1G
Stock:21877
Inv Date:06-11-2026
Price: Unit price: $0.35
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Part No:MMSZ18ET1G
Stock:54573
Inv Date:06-11-2026
Price: Unit price: $0.35
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Part No:MMSZ18ET1G
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.0488
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Part No:MMSZ18ET1G
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.0488
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Source:Arrow EU
Part No:MMSZ18ET1G
Stock:6000
Inv Date:06-11-2026
Price: N/A
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Part No:MMSZ18ET1G
Stock:5
Inv Date:06-11-2026
Price: N/A
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ONSEMI MMSZ18ET1G Zener Diode Specifications:

  • Package Type: SOD-123
  • Power Rating: 500 mW
  • Peak Power Dissipation: 225 W (8 x 20 μs)
  • Zener Voltage Range: 2.4 V to 56 V
  • Maximum Case Temperature for Soldering: 260°C for 10 seconds
  • Polarity: Cathode indicated by polarity band
  • Electrical Characteristics: Zener voltage, reverse current, impedance, leakage current specified at 25°C
  • ESD Rating: Class 3 (> 16 kV) per Human Body Model
  • Flammability: UL 94 V-0
  • Materials: Transfer-molded, corrosion-resistant plastic case
  • Maximum Junction Temperature: 150°C
  • Operating Temperature Range: -55°C to +150°C
  • Soldering: Recommended maximum reflow temperature 260°C
  • Certifications: AEC-Q101 Qualified, PPAP Capable
  • Physical Dimensions: Length approximately 2.36 mm, width approximately 1.22 mm, height approximately 4.19 mm

Buy the On Semiconductor Series Zener Voltage Regulation Diode: MMSZ18ET1G

Order the On Semiconductor MMSZ18ET1G Zener diode online today for superior voltage stabilization and surge protection in compact surface-mount packages. This reliable component is ideal for high-density circuits, automotive, and industrial applications, featuring a wide voltage range from 2.4V to 56V and high peak power dissipation. With excellent ESD protection and UL 94 V-0 flammability rating, this diode ensures durability and safety in demanding environments. Purchase now to enhance your electronic circuit designs with our proven, high-quality Zener diodes.

Buy On Semiconductor MMSZ18ET1G now and experience reliable voltage regulation with high surge handling and automotive-grade quality.

Frequently Asked Questions

Where can I buy ONSEMI MMSZ18ET1G?

You can click on the BUY or RFQ button to purchase MMSZ18ET1G from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part MMSZ18ET1G?

You can download the MMSZ18ET1G datasheet or visit the ONSEMI website for support.

Who is the manufacturer of MMSZ18ET1G?

ONSEMI

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