Diodes Incorporated BAV99T-7-F

Overview

BAV99T-7-F from Diodes Incorporated is a dual high-speed switching diode in SOT523 package, featuring 85 V peak reverse voltage, 155 mA forward current per diode, 4.0 ns reverse recovery time, and 0.81 pF junction capacitance at 0 V. It serves as a compact signal-level clamp or logic-level translator in space-constrained digital interface circuits.

For engineers reviewing the BAV99T-7-F datasheet, BAV99T-7-F pinout, BAV99T-7-F application, or BAV99T-7-F equivalent, key selection criteria include fast switching performance (trr ≤ 4.0 ns), low capacitance for high-frequency signal integrity, dual-diode configuration for bidirectional protection, and SOT523 footprint compatibility with ultra-dense PCB layouts.

Technical Context

The BAV99T-7-F integrates two independent silicon epitaxial planar diodes in a single ultra-small SOT523 package, sharing a common cathode connection. Its fast recovery (trr ≤ 4.0 ns) enables use in 10–100 MHz digital signal routing and clamping applications.

Designed for low-voltage, low-current signal path conditioning, it operates across –55°C to +150°C with 833°C/W thermal resistance and supports 155 mA continuous forward current per diode under FR-4 board conditions.

Key Specifications

Pinout & Package

Package: SOT523 - Ultra-compact 3-terminal surface-mount plastic package (1.60 × 1.60 × 0.75 mm), moisture sensitivity level 1, lead-free matte tin plating, UL 94V-0 rated molding compound.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual high-speed switching diode applications.

Compared with BAV99LT1G and MMBD7000LT1G, the BAV99T-7-F delivers optimal high-frequency signal integrity in minimal area-critical for USB, RF bias, and miniaturized industrial I/O where 4.0 ns recovery and 0.81 pF capacitance directly impact timing margin and layout density.

Availability

BAV99T-7-F is available at Aetrix Electronics and suitable for USB 2.0 interface protection, low-voltage logic translation, and RF bias network design requiring stable component supply and consistent parametric performance across production lots.

Supply support for BAV99T-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 BAV99 series belongs to Diodes' high-speed switching diode product line, engineered specifically for signal integrity preservation in compact digital, interface, and RF subsystems where low capacitance, fast recovery, and miniature packaging are essential.

FAQ

What is the polarity configuration of the BAV99T-7-F?

The BAV99T-7-F uses a common-cathode dual-diode configuration: Pin 1 is Anode 1, Pin 2 is the shared Cathode, and Pin 3 is Anode 2. This arrangement supports bidirectional clamping or dual-path signal routing with a single reference node, confirmed by Diodes' DS30260 Rev. 13 schematic diagram and top-marking "JE" orientation.

Is the BAV99T-7-F suitable for automotive applications?

The standard BAV99T-7-F is not AEC-Q101 qualified; only the BAV99TQ variant carries that qualification. The -7-F version meets industrial temperature range (–55°C to +150°C) and RoHS/Green requirements but lacks PPAP documentation and IATF16949-controlled process validation required for automotive ECUs or body electronics.

How does the SOT523 package affect thermal performance?

The SOT523 package delivers 833°C/W junction-to-ambient thermal resistance under standard FR-4 mounting, meaning a 155 mA forward current at 0.855 V drop (133 mW dissipation) raises junction temperature by ~111°C above ambient. Adequate copper pour or thermal vias are recommended for sustained operation near maximum ratings.

Can the BAV99T-7-F replace a single BAS16T diode?

No-BAV99T-7-F contains two diodes in common-cathode configuration and cannot function as a direct replacement for a single-anode/single-cathode device like BAS16T without circuit redesign. Its pinout and internal topology require explicit use of both anodes and the shared cathode; substituting it for a single diode risks incorrect biasing or open-circuit behavior.