Diodes Incorporated BAT54C-7-F

Overview

BAT54C-7-F from Diodes Incorporated is a dual-common-cathode surface-mount Schottky barrier diode in SOT23 package, rated for 30 V peak reverse voltage, 200 mA average forward current, and 0.8 V max forward voltage at 100 mA. It features PN junction guard ring for transient/ESD protection and is RoHS-compliant, halogen-free, and qualified to JEDEC reliability standards.

For engineers reviewing the BAT54C-7-F datasheet, BAT54C-7-F pinout, BAT54C-7-F application, or BAT54C-7-F equivalent, key selection criteria include low VF for power-sensitive signal clamping, fast 5 ns reverse recovery for high-frequency switching, dual-cathode configuration for rail-to-rail protection, and SOT23 footprint compatibility with space-constrained PCB layouts.

Technical Context

The BAT54C-7-F integrates two independent Schottky diodes sharing a common cathode terminal, enabling bidirectional clamping or dual-path rectification in a single SOT23-3 package. Its low 0.8 V forward voltage drop minimizes conduction loss in low-voltage logic interfaces and USB signal lines.

Designed with a PN junction guard ring, it achieves robust ESD immunity (IEC 61000-4-2 Level 4 compliant per Diodes' qualification) and stable reverse leakage (<2 µA at 25 V), supporting reliable operation in automotive and industrial environments where transient suppression is critical.

Key Specifications

Pinout & Package

Package: SOT23-3 (Standard), 2.9 mm × 1.3 mm × 1.0 mm body, matte tin-plated alloy 42 leadframe, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SBAT54CWT1G and BAT54C,115, the BAT54C-7-F offers superior thermal performance (500°C/W R_θJA), guaranteed halogen-free status, and JEDEC-qualified reliability-making it optimal for new automotive and medical designs requiring traceable green sourcing and extended temperature stability.

Availability

BAT54C-7-F is available at Aetrix Electronics and suitable for USB interface protection, low-voltage logic clamping, automotive sensor conditioning, and power supply OR-ing requiring stable component supply across design-in, prototyping, and volume manufacturing phases.

Supply support for BAT54C-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, manufacturing, and sales operations across Asia, Europe, and North America.

The BAT54 series belongs to Diodes' precision Schottky diode product line, engineered specifically for high-speed signal integrity, low-power clamping, and robust ESD protection in space-constrained consumer, automotive, and industrial systems.

FAQ

What is the polarity configuration of BAT54C-7-F?

The BAT54C-7-F has a dual-anode, common-cathode configuration: Pin 1 is Anode 1, Pin 2 is the shared Cathode, and Pin 3 is Anode 2. This arrangement enables bidirectional clamping to a single reference voltage and is confirmed by Diodes' official top-view marking diagram and SOT23 pinout specification in DS11005 Rev. 34.

Does BAT54C-7-F meet automotive qualification standards?

The BAT54C-7-F is qualified to JEDEC reliability standards and aligned with AEC-Q200 stress test profiles, but it is not officially AEC-Q200-certified. For automotive applications, Diodes offers the pin-compatible BAT54CQ-7-F variant, which carries full AEC-Q200 qualification and is documented in a separate datasheet (DS11005Q).

Can BAT54C-7-F replace BAT54A-7-F or BAT54S-7-F in existing designs?

Yes-BAT54C-7-F is mechanically and electrically interchangeable with BAT54A-7-F (common-anode) and BAT54S-7-F (series-connected) only if the circuit topology matches its dual-common-cathode configuration. Swapping requires verifying schematic connectivity: BAT54A uses common-anode (Pin 2 = anode), while BAT54C uses common-cathode (Pin 2 = cathode).

What is the maximum operating temperature for continuous use?

The BAT54C-7-F supports continuous operation from −65°C to +150°C junction temperature. At ambient temperatures above 75°C, derating applies: power dissipation must be reduced linearly from 200 mW at 25°C to zero at 125°C, per the Figure 4 derating curve in DS11005 Rev. 34.