Diodes Incorporated BAT54BRW-7-F

Overview

BAT54BRW-7-F from Diodes Incorporated is a dual common-cathode Schottky barrier diode array in SOT363 package, rated for 30 V peak reverse voltage, 200 mA continuous forward current, and 5.0 ns reverse recovery time. It delivers low forward voltage drop (max 400 mV at 10 mA), ultra-fast switching, and integrated PN junction guard ring for ESD/transient protection-used in polarity protection and signal clamping circuits in portable power management.

For engineers reviewing the BAT54BRW-7-F datasheet, BAT54BRW-7-F pinout, BAT54BRW-7-F application, or BAT54BRW-7-F equivalent, key selection criteria include dual common-cathode configuration, 30 V VRRM rating, sub-5 ns tRR, 10 pF CT at 1 V, and SOT363 thermal resistance of 625 °C/W under standard PCB mounting.

Technical Context

This device integrates two independent Schottky diodes sharing a common cathode terminal, enabling compact dual-channel clamping or OR-ing functions in space-constrained DC-DC input stages. Its low VF and fast tRR support high-frequency rectification up to ~100 MHz in RF detector and sample-and-hold circuits.

The PN junction guard ring structure provides inherent transient suppression per IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact), while the 0.006 g SOT363 package meets J-STD-020 Level 1 moisture sensitivity for lead-free reflow without baking.

Key Specifications

Pinout & Package

Package: SOT363 - 6-pin ultra-small surface-mount plastic package (2.0 × 2.225 × 0.9 mm), UL 94V-0 rated, matte tin-plated leads, weight 0.006 g.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual Schottky diode array applications.

Compared with SBAT54DW-7-F, BAT54BRW-7-F offers identical performance at lower qualification cost for commercial/industrial use; versus NSR20F30NXT5G, it delivers dual functionality and ESD hardening in half the component count and routing area.

Availability

BAT54BRW-7-F is available at Aetrix Electronics and suitable for USB power interface protection, RF detector clamping, and low-power sensor biasing requiring stable component supply across high-mix manufacturing cycles.

Supply support for BAT54BRW-7-F 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 and manufacturing operations across Asia and the Americas.

The BAT54 series targets high-speed, low-loss signal and power conditioning in portable, industrial, and communications equipment-emphasizing compact packaging, fast switching, and integrated ESD resilience.

FAQ

What is the maximum operating temperature for BAT54BRW-7-F?

The device supports junction temperatures from –65°C to +150°C, with derated average forward current beginning at +25°C ambient. At 125°C ambient, the maximum continuous forward current drops to approximately 100 mA due to thermal limitations on the 2 oz FR-4 test board defined in the datasheet.

Is BAT54BRW-7-F suitable for bidirectional signal clamping?

No-it is a dual common-cathode Schottky array, not symmetrical. Only the anodes are independent; the shared cathode prevents true bidirectional clamping. For AC signal limiting, external resistive biasing or complementary diode pairing is required to define both positive and negative clipping thresholds.

Does BAT54BRW-7-F require special PCB layout considerations for thermal performance?

Yes. To achieve the rated 200 mW power dissipation and 625 °C/W RθJA, the recommended pad layout (per Diodes' SOT363 outline) must be followed: 0.42 mm × 0.60 mm pads with 0.65 mm pitch, and thermal relief to inner copper planes avoided on Pins 2 and 5 to maximize heat conduction from the common cathode terminals.

Can BAT54BRW-7-F replace BAT54CWS in a design?

No-BAT54CWS is a common-anode dual Schottky in SOT323, with inverted topology and different pinout. Swapping requires PCB redesign: BAT54BRW-7-F has common cathode on Pins 2/5, while BAT54CWS places common anode on Pin 1. Electrical ratings match, but circuit function and layout are incompatible without modification.