50pcs SOT-23 Zener Diodes MMBZ12V–MMBZ33V SMD Pack

50-Pack SOT-23 Zener Diodes | MMBZ Series SMD Components

Get reliable voltage regulation in a compact surface-mount package with this 50-piece lot of original SOT-23 (SOT23-3) Zener diodes. Available in multiple voltage ratings — MMBZ12VALT1G, MMBZ15VALT1G, MMBZ18VALT1G, MMBZ20VALT1G, MMBZ27VALT1G, and MMBZ33VALT1G — these diodes are ideal for PCB design, electronics repair, prototyping, and bulk component stocking.

Key Features

• Package: SOT-23 / SOT23-3 — industry-standard small-outline surface-mount transistor footprint
• Voltage Options: 12V, 15V, 18V, 20V, 27V, and 33V Zener ratings available
• Quantity: 50 pieces per lot — great value for hobbyists and professional engineers alike
• Original Components: New, genuine MMBZ_ALT1G series devices
• Applications: Voltage clamping, regulation, ESD protection, and circuit stabilization
• Low Profile: Compact SMD form factor fits tight PCB layouts with ease
• Broad Compatibility: Suitable for consumer electronics, power supplies, automotive boards, and more

Specifications

Why Choose This SOT-23 Zener Diode Pack?

Whether you're building a new circuit from scratch, repairing a faulty board, or simply replenishing your component inventory, these MMBZ-series Zener diodes deliver consistent, dependable performance. The SOT-23 footprint is one of the most widely used SMD packages in the industry, making these drop-in compatible with countless existing designs. Buying in a 50-piece lot saves time and cost compared to purchasing individual components.

Looking for other tools and accessories for your electronics projects? Check out our Electromagnetic Induction Tester – Coil & Circuit Fault Detector or our Air Compressor Pressure Gauge | DIY Tool to round out your workshop.

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Frequently Asked Questions

Q: What voltage ratings are included in this SOT-23 Zener diode pack?

A: This listing covers the following MMBZ-series Zener diodes: MMBZ12VALT1G (12V), MMBZ15VALT1G (15V), MMBZ18VALT1G (18V), MMBZ20VALT1G (20V), MMBZ27VALT1G (27V), and MMBZ33VALT1G (33V). Each listing is for a specific voltage variant — please select the voltage rating you need before adding to cart.

Q: Are these Zener diodes suitable for surface-mount PCB assembly?

A: Yes. The MMBZ_ALT1G series uses the standard SOT-23 (SOT23-3) SMD package, which is fully compatible with automated pick-and-place assembly and manual surface-mount soldering. The compact footprint makes them ideal for high-density PCB layouts in consumer electronics, power supply circuits, and automotive boards.

Q: How many pieces are included in one lot?

A: Each lot contains 50 pieces of the selected MMBZ SOT-23 Zener diode. This makes them excellent for bulk prototyping, production runs, or keeping a well-stocked component inventory.