SBR1A40S3-7 The SBR1A40S3-7 is a 40V, 1A Super Barrier Rectifier from Diodes Incorporated. It features low forward voltage drop of 550mV at 1A and is housed in a surface-mount SOD-323 package.
Mfr Part #:

SBR1A40S3-7

Available from 6 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
The SBR1A40S3-7 is a 40V, 1A Super Barrier Rectifier from Diodes Incorporated. It features low forward voltage drop of 550mV at 1A and is housed in a surface-mount SOD-323 package.
Total Stock: 28,812 pcs
$ Price Range: $0.13 - $0.65

SBR1A40S3-7 Available from 6 distributors

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SBR1A40S3-7 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Average Rectified Output Current
Case
Case Material
Current
Halogen Free
Junction Capacitance
Maximum Junction Temperature
Mounting Type
Non-Repetitive Peak Forward Surge Current
Operating Temperature
Peak Repetitive Reverse Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
RθJA (Maximum @ FR -4 PCB, 2 oz. Copper, minimum recommended pad layout)
RθJA (Maximum @ Polymide PCB)
Speed
Supplier Device Package
Technology
Terminals
Voltage
Weight

SBR1A40S3-7 Description

Short technical summary and product information.

The SBR1A40S3-7 is a 1A, 40V Super Barrier Rectifier (SBR) diode from Diodes Incorporated, designed for efficient rectification in power conversion circuits. It utilizes patented SBR technology to achieve a low forward voltage drop of 550mV maximum at 1A forward current, combined with low reverse leakage current of 100µA maximum at 40V. The device can handle a non-repetitive peak forward surge current of 20A and has a typical junction capacitance of 55pF at 4V reverse bias.

 

This rectifier offers fast recovery switching with a speed rating of less than 500ns at currents above 200mA, making it suitable for high-frequency applications. It is rated for an operating junction temperature range of -65°C to +150°C, with a maximum junction temperature of 150°C. Thermal resistance is specified as 473°C/W on FR-4 PCB and 407°C/W on polyimide PCB with minimum recommended pad layout.

 

The SBR1A40S3-7 is packaged in a surface-mount SOD-323 case (SC-76 equivalent). The package uses green molding compound, matte tin finish terminals, and is rated MSL Level 1 per J-STD-020. It is supplied in tape and reel packaging with 3000 units per reel. The device is fully RoHS3 compliant, lead-free, and halogen-free. An automotive-compliant variant (SBR1A40S3Q) is available under a separate datasheet.

SBR1A40S3-7 Quick Information

Product Type: Super Barrier Rectifier Diode
Canonical Name: SBR1A40S3-7 Super Barrier Rectifier Diode, 40V, 1A, SOD-323
Subcategory: Single Diodes

SBR1A40S3-7 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): Level 1 per J-STD-020
REACH Status: REACH Unaffected
Lead Free: Yes

SBR1A40S3-7 Estimated Pricing

Qty Low High
1+ $0.65 $0.65
10+ $0.40 $0.40
25+ $0.33 $0.33
50+ $0.29 $0.29
100+ $0.25 $0.25
3,000+ $0.15 $0.15
9,000+ $0.13 $0.13

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

SBR1A40S3-7 Features

  • 40V reverse voltage and 1A forward current rating.
  • Forward voltage drop of just 550mV at 1A.
  • Patented Super Barrier Rectifier technology.
  • Fast recovery switching capability under 500ns.
  • Surface mount SOD-323 package.

SBR1A40S3-7 Applications

  • Power supply output rectification circuits.
  • DC-DC converter freewheeling diode applications.
  • Reverse polarity protection in low-voltage systems.
  • High-temperature environments up to 150°C.

SBR1A40S3-7 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the reverse voltage rating of the SBR1A40S3-7?

The peak repetitive reverse voltage (VRRM) is 40V.

What is the average forward current rating?

The average rectified output current (IO) is 1A at TC = +65°C.

What is the forward voltage drop at rated current?

The maximum forward voltage drop (VF) is 550mV at IF = 1A and TJ = +25°C.

What is the switching speed of the device?

It is rated as a fast recovery rectifier with switching speed of less than 500ns at currents above 200mA.

What is the package type?

The device is housed in a surface-mount SOD-323 package (SC-76 equivalent).

What is the non-repetitive peak forward surge current?

The maximum peak forward surge current (IFSM) is 20A for an 8.3ms single half sine-wave.

Is the SBR1A40S3-7 RoHS compliant?

Yes, it is fully RoHS3 compliant (EU Directive 2002/95/EC and 2011/65/EU).

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