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Part No RB521S30T1G
Manufacturer ON Semiconductor
Catalog Diodes, Rectifiers - Single
Description Rectifier Diode Schottky 0.2A 2-Pin SOD-523 T/R / DIODE SCHOTTKY 30V 200MA SOD523
Rohs State Need to verify

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Pricing & Ordering $0.0452 Historical reference price : is the price that a customer announces that it is willing to pay for this component in the previous period, only for reference.
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Availability: 199,250 pieces
MOQ: 750 pcs
Order Increment : 1 pcs
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Products specifications

Categories Discrete Semiconductor Products
Manufacturer ON Semiconductor
Packaging Reel - TR
Status Active
Diode Type Schottky
Voltage - DC Reverse (Vr) (Max) 30V
Current - Average Rectified (Io) 200mA (DC)
Voltage - Forward (Vf) (Max) @ If 500mV @ 200mA
Current - Reverse Leakage @ Vr 30μA @ 10V
Mounting SMD (SMT)
Case / Package SOD-523
Operating Temperature - Junction -55°C to 125°C
Win Source Part Number 027151-RB521S30T1G
Is this a common-used part? Yes
Popularity High
Fake Threat In the Open Market 53 pct.
Supply and Demand Status Sufficient
Application Field Used in Portable Devices
Family Name RB521S30
Introduction Date November 11, 2003
Country of Origin China
Halogen Free Compliant
Estimated EOL Date 2026
Alternative Parts
CES521,L3F;  KDR720E;  CES521;  RB521S-30;  


The ON Semiconductor RB521S30T1G is a 30V, 200mA Schottky diode. It is a high-performance diode with extremely fast switching speed and extremely low forward voltage. It is also low reverse current and AEC-Q101 qualified and PPAP capable.


  • Extremely fast switching speed
  • Extremely low forward voltage (0.5V max at IF = 200mA)
  • Low reverse current
  • AEC-Q101 qualified and PPAP capable
  • Pb-free, halogen-free/BFR-free and RoHS compliant


The RB521S30T1G is ideal for a wide range of applications, including:

  • Portable devices
  • Battery-powered devices
  • Power management circuits
  • Switching circuits
  • Protection circuits
  • Automotive applications


The RB521S30T1G offers a number of benefits, including:

  • Improved efficiency
  • Reduced power consumption
  • Increased reliability
  • Smaller footprint
  • Longer battery life

Technical Specifications

  • Maximum reverse voltage: 30V
  • Average rectified current: 200mA (DC)
  • Forward voltage: 500mV at 200mA
  • Reverse leakage current: 30μA at 10V
  • Operating temperature range: -55°C to +125°C
  • Package: SOD-523

How to Use

The RB521S30T1G can be used in a variety of applications, depending on the specific requirements. It is important to consult the datasheet for detailed information on how to use the diode safely and effectively.

Here is an example of how to use the RB521S30T1G in a simple power management circuit:

|                   |
|   Input           |
|                   |
|   Output          |
|                   |

In this circuit, the RB521S30T1G is used to rectify the input voltage and provide a smooth DC output voltage. The diode is connected in series with the input and output voltages, and the cathode is connected to the input voltage.


The ON Semiconductor RB521S30T1G is a high-performance Schottky diode that is ideal for a wide range of applications. It offers a number of benefits, including improved efficiency, reduced power consumption, increased reliability, smaller footprint, and longer battery life.

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