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ONSEMI US1DFA High-Speed Rectifier Diode

The US1DFA is a high-efficiency, surface-mount rectifier diode featuring glass passivated chip junction, fast switching capabilities with reverse recovery time of 50-75 ns, and high surge capacity. Compliant with RoHS standards and qualified per AEC-Q101, it is suitable for industrial power applications requiring low power loss. Its SOD-123FA package enables easy mounting, and it offers a maximum repetitive peak reverse voltage of 300 V and maximum forward current of 1 A. Designed for reliability, this diode ensures efficient power conversion with low forward voltage drop and high surge handling.

Authorized Distributors
Source:DigiKey
Part No:US1DFA
Stock:9072
Inv Date:06-10-2026
Price: Unit price: $0.77
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Part No:US1DFA
Stock:15093
Inv Date:06-11-2026
Price: Unit price: $0.77
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Part No:US1DFA
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.2709
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Part No:US1DFA
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.2709
Buy/RFQ:
Part No:US1DFA
Stock:1
Inv Date:06-11-2026
Price: N/A
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ONSEMI US1DFA High-Speed Rectifier Diode Specifications:

  • Maximum Repetitive Peak Reverse Voltage: 50V to 1000V depending on model
  • RMS Reverse Voltage: 35V to 700V depending on model
  • Maximum Forward Current: 1A
  • Peak Forward Surge Current: 8.3 ms, 30A
  • Operating Junction Temperature Range: -55°C to +150°C
  • Storage Temperature Range: -55°C to +150°C
  • Thermal Resistance Junction-to-Ambient: 153°C/W
  • Thermal Resistance Junction-to-Lead: 21°C/W
  • Forward Voltage (IF=1A): 0.95V to 1.70V depending on model
  • Capacitance at 1MHz: 15-20 pF
  • Package: SOD-123FA
  • UL Flammability Class: 94-0
  • RoHS Compliant and Green Molding Material
  • Qualified per AEC-Q101 standards

Buy the ON Semiconductor US1DFA – Reliable High-Speed Rectifier for Industrial Applications

Purchase the ON Semiconductor US1DFA high-speed surface mount rectifier diode online today. Designed for industrial power applications, it features a 300V peak reverse voltage, 1A current capacity, and fast switching with recovery times of 50-75 ns. Its glass passivated chip junction and RoHS compliant package ensure reliability, low power loss, and efficient operation. Ideal for power conversion, rectification, and high surge capacity tasks, this diode provides robust performance and easy mounting in compact SOD-123FA packages, making it a trusted choice for engineers and technicians worldwide.

Get ON Semiconductor US1DFA today—built for precision, high surge capacity, and long-lasting durability in industrial power management.

Frequently Asked Questions

Where can I buy ONSEMI US1DFA?

You can click on the BUY or RFQ button to purchase US1DFA from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part US1DFA?

You can download the US1DFA datasheet or visit the ONSEMI website for support.

Who is the manufacturer of US1DFA?

ONSEMI

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