40CTQ045 The 40CTQ045 is a Schottky rectifier diode array with a common cathode configuration, rated for 45V reverse voltage and 20A average rectified current per leg. It is housed in a through-hole TO-220-3 package.
Mfr Part #:

40CTQ045

Available from 1 distributors
Mfr Name: Vishay
Vishay
The 40CTQ045 is a Schottky rectifier diode array with a common cathode configuration, rated for 45V reverse voltage and 20A average rectified current per leg. It is housed in a through-hole TO-220-3 package.
Total Stock: 5,309 pcs
$ Price Range: $1.80

40CTQ045 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
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5,309 pcs
5309 pcs On Request 1 On Request On Request 00+ On Request On Request

40CTQ045 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Avalanche Energy (per Leg)
Average Rectified Current (Maximum @ 50% duty cycle at TC=116 °C, rectangular waveform)
Current
Diode Configuration
Forward Voltage (Maximum @ 40 A, TJ = 125 °C)
Forward Voltage (Maximum @ 40 A, TJ = 25 °C)
Forward Voltage (Maximum @ @ 20 A, Tj = 125 °C)
Forward Voltage (Maximum @ @ 20 A, Tj = 25 °C)
Industrial Grade
Junction Capacitance (per leg)
Junction Temperature Range
Mounting Type
Non Repetitive Peak Surge Current (Maximum @ 10 ms sine)
Non Repetitive Peak Surge Current (Maximum @ 5 µs sine)
Operating Temperature
Reverse Leakage Current (Maximum @ TJ = 125 °C, VR = Rated VR)
Reverse Leakage Current (Maximum @ TJ = 25 °C, VR = Rated VR)
Reverse Voltage (DC)
Series Inductance per leg
Speed
Storage Temperature
Supplier Device Package
Tape & Reel
Technology
Voltage
Voltage Rate of Change

40CTQ045 Description

Short technical summary and product information.

The 40CTQ045 is a dual Schottky rectifier from Vishay High Power Products, configured as a common cathode pair. Each leg is rated for 20A average rectified current at 116°C case temperature, with a total device rating of 40A. The maximum reverse voltage is 45V. Forward voltage is as low as 0.48V at 20A and 125°C, enabling high efficiency. The device features a guard ring for enhanced ruggedness and long-term reliability, and is designed for operation up to 150°C junction temperature. It can handle non-repetitive peak surge currents up to 1240A (5µs sine) and 350A (10ms sine), and has an avalanche energy rating of 20mJ per leg. Typical applications include output rectification in switching power supplies, DC-DC converters, freewheeling diodes, and reverse battery protection. The part is offered in a through-hole TO-220-3 package, suitable for industrial-level designs.

40CTQ045 Quick Information

Product Type: Schottky Rectifier Diode Array
Canonical Name: Schottky Rectifier Diode Array, 2 x 20A, 45V, Common Cathode, TO-220-3
Subcategory: Rectifier Diode Arrays

40CTQ045 Compliance

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

40CTQ045 Estimated Pricing

Qty Low High
1,000+ $1.80 $1.80

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

40CTQ045 Features

  • Common cathode Schottky diode pair.
  • Rated for 45V reverse voltage.
  • 20A average rectified current per leg.
  • Very low forward voltage drop.
  • 150°C maximum junction temperature.

40CTQ045 Applications

  • Switching power supply output rectification.
  • DC-DC converter freewheeling diode.
  • Reverse battery protection circuits.
  • High frequency rectifier applications.

40CTQ045 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum reverse voltage of the 40CTQ045?

45V.

What is the average rectified current rating per leg?

20A at 116°C case temperature (50% duty cycle, rectangular waveform).

What is the forward voltage drop at 20A and 125°C?

0.48V maximum per leg.

What package is the 40CTQ045 available in?

TO-220-3 (through-hole).

What is the maximum junction temperature?

150°C.

What is the non-repetitive peak surge current rating?

1240A for 5µs sine and 350A for 10ms sine per leg.

What is the avalanche energy rating per leg?

20mJ at 25°C (IAS=3A, L=4.4mH).

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