Diodes Incorporated BAV23CQ-7-F

Overview

BAV23CQ-7-F from Diodes Incorporated is a surface-mount, high-voltage dual switching diode in SOT23 package, featuring 250 V repetitive peak reverse voltage (V_RRM), 400 mA forward current (I_F), and 50 ns reverse recovery time (t_RR). It serves as a compact, fast-switching protection and signal routing element in DC-DC converter flyback snubbers, battery backup path selectors, and automotive body control module input clamping circuits.

For engineers reviewing the BAV23CQ-7-F datasheet, BAV23CQ-7-F pinout, BAV23CQ-7-F application, or BAV23CQ-7-F equivalent, key selection criteria include its dual-common-cathode configuration, 100 nA reverse leakage at 200 V/25°C, JEDEC-qualified AEC-Q200 compliance, and compatibility with automated SMT assembly on FR-4 PCBs with 357 °C/W thermal resistance.

Technical Context

The BAV23CQ-7-F integrates two independent silicon switching diodes in a single SOT23-3 package with common cathode connection - confirmed by top-view marking layout and internal schematic in DS30042 Rev. 23-2. Its design targets high-reliability, low-leakage switching in space-constrained 12–48 V systems where fast t_RR (≤50 ns) and stable V_(BR)R ≥250 V are required across -55°C to +150°C.

This device operates under double-diode parallel loading per datasheet Note 7, enabling 400 mA total forward current while maintaining thermal derating per Fig. 1. Its 5.0 pF capacitance at 0 V bias supports high-frequency signal routing, and the 350 mW power dissipation rating assumes standard FR-4 mounting per Note 5.

Key Specifications

Pinout & Package

Package: SOT23-3, surface-mount plastic package with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1 (J-STD-020), and UL 94V-0 flammability rating.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BAV23CQ-7-F, BAV23AQ-7-F adds auditable AEC-Q200 test records without performance trade-offs, while MMBD23C-7-F sacrifices 50 V standoff and 25 ns speed for cost-sensitive non-automotive use - making BAV23CQ-7-F the optimal balance of ruggedness, speed, and qualification for mid-tier automotive and industrial designs.

Availability

BAV23CQ-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controller (PLC) input stages, and portable medical device power path management requiring stable component supply, long-term lifecycle support, and AEC-Q200-aligned quality assurance.

Supply support for BAV23CQ-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 centers across Asia and manufacturing in China, Taiwan, and the U.S.

The BAV23 series belongs to Diodes' high-reliability switching diode product line, engineered specifically for automotive and industrial applications demanding robust transient suppression, low leakage, and extended temperature operation.

FAQ

What is the pin configuration of BAV23CQ-7-F?

BAV23CQ-7-F uses SOT23-3 package with Pin 1 = Anode 1, Pin 2 = Common Cathode, Pin 3 = Anode 2. This dual-common-cathode arrangement is confirmed in DS30042 Rev. 23-2 Figure "Top View SOT23" and validated by Diodes' official package outline PL-001.

Is BAV23CQ-7-F suitable for automotive applications?

Yes - BAV23CQ-7-F is explicitly qualified to AEC-Q200 standards per Diodes' product definitions page and datasheet notes. It undergoes stress testing for temperature cycling, humidity, and mechanical shock, and is rated for operation from -55°C to +150°C junction temperature.

How does BAV23CQ-7-F differ from BAV23C-7-F?

BAV23CQ-7-F is the automotive-qualified version of BAV23C-7-F. Both share identical electrical specifications and SOT23-3 packaging, but BAV23CQ-7-F includes full AEC-Q200 test documentation, lot-level traceability, and enhanced process controls required for automotive production.

Can BAV23CQ-7-F replace a single 1N4148 diode?

No - BAV23CQ-7-F contains two diodes with shared cathode; it cannot function as a drop-in replacement for a single-diode part without circuit redesign. Its dual-anode/common-cathode topology requires intentional use of both elements or proper termination of one anode to avoid unintended conduction paths.