US1AFA The US1AFA is a 50V, 1A fast recovery rectifier diode from onsemi. It features a 50ns reverse recovery time and is housed in a surface mount SOD-123FA package.
Mfr Part #:

US1AFA

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The US1AFA is a 50V, 1A fast recovery rectifier diode from onsemi. It features a 50ns reverse recovery time and is housed in a surface mount SOD-123FA package.
Total Stock: 2,990 pcs
$ Price Range: $0.11 - $0.61

US1AFA Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,990 pcs
2990 pcs On Request 1 On Request On Request On Request On Request On Request

US1AFA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Capacitance @ Vr, F
Current
DC Blocking Voltage
Halogen Free
IR (Maximum @ TJ = 125 °C)
IR (Maximum @ TJ = 25 °C)
Industrial Grade
Medical Grade
Military Grade
Mounting Type
Operating Temperature
Peak Forward Surge Current
RMS Reverse Voltage
Repetitive Peak Reverse Voltage
Reverse Recovery Time (trr)
SVHC Present
Speed
Storage Temperature
Storage Temperature Range
Supplier Device Package
Technology
Typical Thermal Resistance Junction to Ambient
Typical Thermal Resistance Junction to Lead
UL Flammability
Voltage

US1AFA Description

Short technical summary and product information.

The US1AFA is a super fast surface mount rectifier diode from onsemi, designed for high efficiency and low power loss. It has a repetitive peak reverse voltage of 50V and an average forward rectified current of 1A.

 

Key electrical characteristics include a maximum forward voltage of 0.95V at 1A, a reverse recovery time of 50ns, and a peak forward surge current of 30A. The device operates over a junction temperature range of -55°C to +150°C.

 

The diode features a glass passivated chip junction and is UL flammability rated 94V-0. It is Pb-free, halogen free, and RoHS compliant. The package is SOD-123FL (supplier device package SOD-123FA), suitable for surface mount assembly.

 

Typical applications include high frequency rectification, freewheeling diodes, and polarity protection in power supplies and other electronic circuits. The fast recovery time makes it ideal for switching applications.

US1AFA Quick Information

Product Type: Fast Recovery Rectifier
Series: US1AFA
Canonical Name: US1AFA Super Fast Surface Mount Rectifier
Subcategory: Fast Recovery Rectifier

US1AFA Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

US1AFA Estimated Pricing

Qty Low High
1+ $0.61 $0.61
10+ $0.37 $0.37
100+ $0.24 $0.24
500+ $0.18 $0.18
1,000+ $0.16 $0.16
3,000+ $0.13 $0.13
6,000+ $0.11 $0.11

Estimated market price range - modelled values for guidance only, not live distributor offers.

US1AFA Features

  • 50V repetitive peak reverse voltage rating.
  • 1A average forward rectified current.
  • 50ns fast reverse recovery time.
  • 30A peak forward surge current capability.
  • Surface mount SOD-123FA package.

US1AFA Applications

  • Used in high frequency rectification circuits.
  • Ideal for freewheeling diode applications.
  • Suitable for polarity protection in power supplies.
  • Employed in switching power supply output rectification.

US1AFA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum repetitive peak reverse voltage of the US1AFA?

50V.

What is the average forward rectified current rating?

1A.

What is the forward voltage drop at 1A?

0.95V maximum.

What is the reverse recovery time?

50ns maximum.

What package is the US1AFA available in?

SOD-123FL (supplier device package SOD-123FA).

What is the peak forward surge current rating?

30A at 8.3ms single half sine-wave.

What is the operating junction temperature range?

-55°C to +150°C.

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