Diodes Incorporated BAV199DWQ-7-F

Overview

BAV199DWQ-7-F from Diodes Incorporated is a quad surface-mount low-leakage switching diode in SOT363 package, comprising four independent silicon epitaxial planar diodes with 85 V peak reverse voltage, ≤5.0 nA leakage at 75 V, and 3.0 µs reverse recovery time. It serves as signal-level clamping, polarity protection, and high-speed logic interface isolation in automotive body control modules.

For engineers reviewing the BAV199DWQ-7-F datasheet, BAV199DWQ-7-F pinout, BAV199DWQ-7-F application, or BAV199DWQ-7-F equivalent, key selection criteria include AEC-Q101 qualification, ultra-low IR at elevated temperature, dual-channel common-cathode configuration per pair, and SOT363 thermal performance under 150°C ambient operation.

Technical Context

This device integrates four discrete diodes in one compact SOT363 package with two isolated pairs: Pins 1–2–3 form one dual-diode structure (A1–C1–A2), and Pins 4–5–6 form another (C2–A3–A4), enabling dual-channel bidirectional signal routing or redundant protection paths. Each diode exhibits matched forward voltage (VF ≤ 1.25 V at 150 mA) and tightly controlled junction capacitance (CT = 1.5 pF at 0 V, 1 MHz).

The AEC-Q101 qualification confirms suitability for automotive powertrain and chassis systems requiring stable leakage behavior up to +150°C, while the 625°C/W junction-to-ambient thermal resistance reflects FR-4 board mounting with recommended pad layout per Diodes Inc. Package Outline #SOT363.

Key Specifications

Pinout & Package

SOT363 is a 6-pin, dual-row, surface-mount plastic package measuring 2.15 mm × 2.10 mm × 0.95 mm (max height), with matte tin-plated alloy 42 leadframe and UL 94V-0 mold compound. Moisture sensitivity level is J-STD-020 Level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-leakage quad diode applications.

Compared with BAV23C-7-F and NSR20F30NXT5G, the BAV199DWQ-7-F uniquely combines AEC-Q101 qualification, 85 V blocking, and sub-5 nA leakage-making it the only option for thermally demanding automotive signal integrity applications requiring long-term parametric stability.

Availability

BAV199DWQ-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial 4–20 mA transmitters, USB Type-C port protection, and redundant power OR-ing circuits requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BAV199DWQ-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 BAV199DWQ belongs to Diodes' Automotive-Grade Discrete Diode product line, engineered specifically for signal integrity, ESD robustness, and thermal resilience in vehicle electronic control units operating beyond 125°C ambient.

FAQ

What is the maximum continuous forward current per diode in the BAV199DWQ-7-F?

The maximum continuous forward current per diode is 160 mA at TA = +25°C, derating linearly to 0 mA at +150°C per the current derating curve in Figure 4 of DS38577. This rating assumes mounting on FR-4 PCB with Diodes Inc.'s recommended SOT363 pad layout, which ensures adequate thermal dissipation for sustained operation in automotive cabin modules.

Does the BAV199DWQ-7-F support bidirectional signal routing?

No - each diode conducts only anode-to-cathode. However, its internal configuration (two independent common-cathode pairs: A1–C1–A2 and C2–A3–A4) enables flexible unidirectional routing for dual-channel applications such as differential line clamping or dual-rail power path isolation, not true AC signal inversion or bidirectional switching.

How does the 3.0 µs reverse recovery time impact high-frequency signal integrity?

A 3.0 µs tRR limits usable frequency to approximately 300 kHz for clean switching transitions. In practice, this supports reliable operation in LIN bus (20 kbps), CAN FD (up to 2 Mbps with proper termination), and low-speed USB 2.0 data lines - provided external RC filtering compensates for minor tail current effects during edge transitions.

Is the SOT363 package compatible with standard reflow profiles for lead-free assembly?

Yes - the BAV199DWQ-7-F uses matte tin annealed plating over alloy 42 leadframe and is rated for JEDEC J-STD-020 Level 1 moisture sensitivity. It withstands peak reflow temperatures up to 260°C for 30 seconds and is fully compatible with IPC-7095-compliant lead-free soldering processes used in automotive electronics manufacturing.