Diodes Incorporated B380-13

Overview

B380-13 from Diodes Incorporated is a 3.0A, 80V peak repetitive reverse voltage Schottky barrier rectifier in SMC package, featuring low forward voltage drop (0.79 V at 3.0A, 25°C), 100A non-repetitive surge rating, and guard ring die construction for transient protection. It is used in low-voltage, high-frequency inverters, freewheeling diode circuits, and polarity protection in DC power supplies.

For engineers reviewing the B380-13 datasheet, B380-13 pinout, B380-13 application, or B380-13 equivalent, key selection factors include its 80V VRRM rating, 0.79V VF at rated current, 100A IFSM surge capability, thermal resistance of 10°C/W, and SMC surface-mount package compatibility with high-power-density board layouts.

Technical Context

This Schottky rectifier uses a guard ring die structure to enhance transient voltage immunity and suppress edge leakage, enabling reliable operation under fast-switching, inductive-load conditions. Its low forward voltage minimizes conduction loss, while the 100 pF typical junction capacitance supports high-frequency rectification up to several MHz.

The device operates across –55°C to +125°C junction temperature range and exhibits defined derating: average forward current drops from 3.0A at 90°C terminal temperature to ~1.8A at 125°C, per Fig. 3. Thermal resistance from junction to terminal is 10°C/W, confirming suitability for thermally constrained SMT designs without forced airflow.

Key Specifications

Pinout & Package

Package: SMC (DO-214AB), surface-mount plastic case with cathode band marking; dimensions 7.11 mm × 6.22 mm × 2.39 mm (L × W × H); UL 94V-0 rated, RoHS-compliant matte tin plating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Compared with VS-3EYH08-M3 and MBR360T3G, the B380-13 offers superior surge robustness (100A vs. 80A) and tighter thermal performance (10°C/W vs. 12°C/W), making it preferred for automotive and industrial applications demanding sustained reliability under transient stress.

Availability

B380-13 is available at Aetrix Electronics and suitable for DC-DC converter output rectification, automotive body control module power input, and high-frequency inverter freewheeling requiring stable component supply and long-term production continuity.

Supply support for B380-13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

The B380-13 belongs to Diodes' high-current Schottky rectifier product line, engineered for efficiency-critical power conversion in automotive, industrial, and computing applications where low VF and high surge tolerance are mandatory.

FAQ

What is the maximum junction temperature for continuous operation of the B380-13?

The B380-13 has a specified operating junction temperature range of –55°C to +125°C. For continuous operation at full 3.0A average current, the terminal temperature must not exceed 90°C per the derating curve (Fig. 3); exceeding this requires proportional current reduction to maintain TJ ≤125°C.

Is the B380-13 suitable for use in automotive under-hood applications?

Yes-the B380-13 is qualified for automotive use with its –55°C to +125°C operating range, 80V VRRM (exceeding ISO 7637-2 load-dump requirements), RoHS compliance, and green molding compound. Its guard ring die enhances resilience against electrical transients common in vehicle power networks.

How does the SMC package of the B380-13 compare to SMA in thermal performance?

The SMC package (DO-214AB) offers ~25% larger copper pad area than SMA (DO-214AC), resulting in lower thermal resistance: RθJT is 10°C/W for B380-13 versus ~14°C/W for comparable SMA-packaged Schottkys. This allows higher power dissipation without additional heatsinking.

Does the B380-13 have a specified reverse recovery time (trr)?

No-Schottky barrier rectifiers like the B380-13 are majority-carrier devices and do not exhibit reverse recovery charge or time. The datasheet specifies only leakage current (IR) and capacitance (CT); trr is not applicable, eliminating switching losses associated with minority-carrier recovery.