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Manufacturer Part #


Uni-Directional 40 W 21.2 V Surface Mount Transient Voltage Suppressor -SOT-23-3

Mfr. Name: ON Semiconductor
Standard Pkg:
Product Variant Information section
Date Code: 1919
Product Specification Section
Technical Attributes
Attributes Table
Breakdown Voltage-Max: 15.8V
Breakdown Voltage-Min: 14.3V
Clamping Voltage-Max: 21.2V
Directional: Uni-Directional
Power Dissipation: 40W
Package Style:  SOT-23 (SC-59,TO-236)
Mounting Method: Surface Mount
Features and Applications
The MMBZ15VDLT1/MMBZ27VCLT1 is a 40 Watt Peak Power Zener Transient Voltage Suppressors and SOT−23 Dual Common Cathode Zeners for ESD Protection.

These dual monolithic silicon zener diodes are designed for applications requiring transient overvoltage protection capability. They are intended for use in voltage and ESD sensitive equipment such as computers, printers, business machines, communication systems, medical equipment and other applications. Their dual junction common cathode design protects two separate lines using only one package.

These devices are ideal for situations where board space is at a premium. The MMBZ27VCLT1 can be used to protect a single wire communication network from EMI and ESD transient surge voltages.


  • SOT−23 Package Allows Either Two Separate Unidirectional Configurations or a Single Bidirectional configuration
  • Working Peak Reverse Voltage Range − 12.8 V, 22 V
  • Standard Zener Breakdown Voltage Range − 15 V, 27 V
  • Peak Power − 40 W @ 1.0 ms (Bidirectional)
  • ESD Rating of Class 3B (exceeding 16 kV) per the Human Body Model
  • Low Leakage < 100 nA
  • Flammability Rating: UL 94 V−O
  • Pb−Free Packages are Available
Pricing Section
Web Price:
$0.196 USD Each
Cost Per Unit
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Tariff charges may apply if shipping to the United States. An estimate of tariff charges will be calculated at checkout.

$7.00 reeling fee is amortized over the number of components for each reel.
Mini-Reels are a custom product and are non-cancelable and non-returnable.

Product Variant Information section