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New Original MBRA140T3G Schottky Diode 40V 1A

1. Product Overview

MBRA140T3G is a Schottky rectifier produced by ON, using SMA (DO-214AC) surface mount package. The device is based on the Schottky barrier principle, has low forward voltage drop and high frequency characteristics, and is suitable for low voltage, high frequency rectification, freewheeling and polarity protection scenarios, especially for portable electronic devices with limited space.

Part Status: Active
Technology: Schottky
Voltage – DC Reverse (Vr) (Max): 40 V
Current – Average Rectified (Io): 1A
Voltage – Forward (Vf) (Max) @ If: 550 mV @ 1 A
Speed: Fast Recovery =< 500ns, > 200mA (Io)
Current – Reverse Leakage @ Vr: 500 µA @ 40 V
Capacitance @ Vr, F: –
Mounting Type: Surface Mount
Package / Case: DO-214AC, SMA
Supplier Device Package: SMA
Operating Temperature – Junction: -55°C ~ 125°C

2. Core Features

Electrical Performance

1. DC reverse withstand voltage (Vr): 40V

2. Average rectified current (Io): 1A

3. Forward voltage drop (Vf): 550mV @ 1A (typical value)

4. Maximum forward surge current (Ifsm): 30A

5. Reverse leakage current (Ir): 500µA @ 40V

Thermal Performance and Reliability

1. Operating temperature range: -55°C to 125°C

2. Thermal resistance (RθJL): 35°C/W

3. Compliance with standards: RoHS environmental protection, lead-free design, some models have passed AEC-Q101 automotive grade certification.

Packaging and Installation

1. Package form: SMA (DO-214AC), compact size (4.32mm × 2.6mm × 2mm)

2. Installation method: surface mount (SMT), support automated patch production.

III. Application fields

1. Power conversion: rectifier circuit in AC-DC or DC-DC converter.
2. Battery protection: prevent battery reverse discharge or overcharge.
3. Signal protection: as a clamping diode in high-speed signal lines.
4. High-frequency circuit: suitable for high-frequency applications such as switching power supplies and inverters.
5. Portable devices: scenarios with strict space requirements such as smartphones and tablets.