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NSR1020MW2T1G

Schottky diode, 20V, 1A, 0.24V Vf@10mA, SOD-323, 200mW, AEC-Q101 capable

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Manufacturer Part：

NSR1020MW2T1G

Package：

SOD-323 1.70 x 1.25 x 0.85 mm

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Description

Product Overview

The onsemi NSR1020MW2T1G is a 20V, 1A Schottky barrier diode in a compact SOD-323 surface-mount package. Featuring extremely low forward voltage drop of 0.24V (typical at 10 mA), it is optimized for charging applications, discrete buck/boost converters, and other power management circuits where efficiency is critical.

Key Specifications

Diode Type Schottky Barrier
Reverse Voltage (VR) 20 V
Forward Current (IF) 1 A (Continuous DC)
Forward Voltage (VF) Typ 0.24 V @ 10 mA, 0.54 V @ 1 A
Reverse Leakage (IR) 40 µA @ 15 V
Total Capacitance (CT) 29 pF @ 5V, 1 MHz
Power Dissipation 200 mW @ TA=25°C
ESD Rating (HBM) Class 3B (>8 kV)
Operating Temperature -55°C to +125°C (TJ)
Package SOD-323

Features

  • Ultra-low forward voltage of 0.24V typical at 10 mA for minimal power loss
  • High current capability of 1A continuous in compact SOD-323 package
  • ESD rating Class 3B per Human Body Model
  • NSVR prefix available for automotive AEC-Q101 qualified applications
  • Low total capacitance of 25 pF (typical) suitable for high-frequency circuits
  • Pb-Free, Halogen Free/BFR Free, RoHS compliant

Applications

  • Blocking diode in battery charging circuits
  • Discrete buck converter freewheeling diode
  • Discrete boost converter output diode
  • Power supply OR-ing and reverse polarity protection
  • Portable device power management

The onsemi NSR1020MW2T1G is a Schottky barrier diode housed in a compact SOD-323 surface-mount package, offering 20V reverse voltage and 1A continuous forward current capability. The device features an extremely low forward voltage drop of 0.24V (typical at 10 mA), significantly improving efficiency in power management applications. The low Vf makes it ideal as a blocking diode in charging circuits or as part of discrete buck/boost converters, where the Schottky’s low forward drop reduces overall power consumption. The device achieves ESD Class 3B rating (>8 kV HBM) and is available with NSVR prefix for automotive AEC-Q101 qualified applications. With a total capacitance of only 25 pF (typical at 5V), the diode is suitable for high-frequency switching circuits. The NSR1020MW2 is Pb-Free, Halogen Free/BFR Free, and RoHS compliant.

The NSR1020MW2T1G is a Schottky barrier diode, which uses a metal-semiconductor junction rather than a PN junction. When forward-biased, majority carriers (electrons) cross the barrier from the semiconductor to the metal, conducting current with a very low forward voltage drop (0.24V at 10 mA, 0.54V at 1A). The Schottky junction has no minority carrier storage, meaning the diode can switch off almost instantly (no reverse recovery time), making it ideal for high-frequency switching applications. In reverse bias, a small leakage current of 40 µA flows at 15V due to thermionic emission over the barrier. The total capacitance of 25 pF (at 5V, 1 MHz) represents the junction capacitance, which is higher than a comparable PN diode but does not affect switching speed since there is no charge storage. The 200 mW power dissipation rating is limited by the small SOD-323 package thermal resistance.

Pin Name Type Function
1 Cathode Terminal Marked by band — connect to positive side for forward conduction
2 Anode Terminal Connect to negative side for forward conduction
  • Battery charging blocking diode in portable device power management
  • Freewheeling diode in discrete buck converter circuits
  • Output rectifier diode in discrete boost converter circuits
  • Power supply OR-ing for redundant or backup power sources
  • Reverse polarity protection in automotive and industrial circuits
Manufacturer Part Number Package Notes
onsemi NSVR1020MW2T1G SOD-323 AEC-Q101 qualified version
Vishay BAT20J SOD-323 Similar 20V Schottky
Nexperia PMEG1020EJ SOD-323 Equivalent 20V 1A Schottky
ROHM RB520S-30 SOD-323 30V alternative
onsemi NSR0240LT1G SOD-323 24V variant in same package
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Contact Information

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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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