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BAT54KFILM BAT54KFILM is a Schottky rectifier diode from STMicroelectronics rated for 40V reverse voltage and 300mA average rectified current. It features a fast 5ns reverse recovery time and is housed in a surface-mount SOD-523 package.
Mfr Part #:

BAT54KFILM

Available from 5 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
BAT54KFILM is a Schottky rectifier diode from STMicroelectronics rated for 40V reverse voltage and 300mA average rectified current. It features a fast 5ns reverse recovery time and is housed in a surface-mount SOD-523 package.
Total Stock: 1,245,830 pcs
$ Price Range: $0.04 - $0.29

BAT54KFILM Available from 5 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
712,020 pcs
712020 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
381,000 pcs
381000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
136,020 pcs
136020 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
15,000 pcs
15000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Non-Authorised Inventory information
1,790 pcs
1790 pcs On Request 1 On Request On Request On Request On Request On Request

BAT54KFILM Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Capacitance @ Vr, F
Current
Current - Average Rectified (Io)
Diode Type
Forward Voltage (Vf)
Mounting Type
Operating Temperature
Package / Case
Reverse Recovery Time (trr)
Speed
Supplier Device Package
Technology
Voltage
Voltage - DC Reverse (Vr) (Max)

BAT54KFILM Description

Short technical summary and product information.

The BAT54KFILM is a Schottky barrier rectifier diode designed for high-speed switching applications. It offers a maximum reverse voltage of 40V and an average rectified current of 300mA. The forward voltage is typically 900mV at 100mA forward current, enabling efficient low-voltage operation.

 

With a reverse recovery time of just 5ns, this diode is well-suited for fast-switching circuits such as DC-DC converters, freewheeling diodes, and polarity protection. The junction capacitance is typically 10pF at 1V and 1MHz, supporting high-frequency performance.

 

The device is surface-mount packaged in SOD-523 (SC-79) and operates over a temperature range of -40°C to 150°C. It is RoHS3 compliant and has an MSL of 1 (unlimited).

BAT54KFILM Quick Information

Product Type: Schottky Diode
Canonical Name: BAT54KFILM Schottky Diode 40V 300mA
Subcategory: Rectifier Diode

BAT54KFILM Compliance

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

BAT54KFILM Estimated Pricing

Qty Low High
1+ $0.29 $0.29
10+ $0.18 $0.18
100+ $0.11 $0.11
500+ $0.08 $0.08
1,000+ $0.07 $0.07
3,000+ $0.06 $0.06
6,000+ $0.05 $0.05
9,000+ $0.05 $0.05
15,000+ $0.05 $0.05
21,000+ $0.04 $0.04
30,000+ $0.04 $0.04

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

BAT54KFILM Features

  • Schottky diode with 40V reverse voltage.
  • 300mA average rectified current rating.
  • Fast 5ns reverse recovery time.
  • Surface-mount SOD-523 package.
  • Operates from -40°C to 150°C.

BAT54KFILM Applications

  • Used in high-speed switching power supplies.
  • Ideal for freewheeling diode applications.
  • Suitable for polarity protection circuits.
  • Used in DC-DC converter output rectification.

BAT54KFILM FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage of the BAT54KFILM?

The maximum reverse voltage is 40V.

What is the average rectified current rating?

The average rectified current is 300mA.

What is the forward voltage at 100mA?

The forward voltage is 900mV maximum at 100mA.

What is the reverse recovery time?

The reverse recovery time is 5ns maximum.

What package is the BAT54KFILM available in?

It is available in surface-mount SOD-523 (SC-79) package.

What is the operating temperature range?

The operating temperature range is -40°C to 150°C.

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