Diodes Incorporated BAV70-7

Overview

BAV70-7 from Diodes Incorporated is a dual surface-mount switching diode in SOT23 package, rated for 75 V peak repetitive reverse voltage, 300 mA forward continuous current, and 4.0 ns reverse-recovery time. It delivers high conductance with VF ≤ 0.855 V at IF = 10 mA and CT ≤ 2.0 pF at VR = 0 V, used in high-speed signal routing and polarity protection circuits in consumer power supplies and USB interface clamping.

For engineers reviewing the BAV70-7 datasheet, BAV70-7 pinout, BAV70-7 application, or BAV70-7 equivalent, key selection criteria include reverse recovery speed, low forward voltage at moderate current, junction-to-ambient thermal resistance (357 °C/W), and dual-diode configuration in a space-constrained SOT23 footprint.

Technical Context

The BAV70-7 integrates two independent silicon switching diodes in a single SOT23-3 package with common cathode connection confirmed by internal schematic and top-view marking diagram. Its fast recovery (trr ≤ 4.0 ns) enables use in >10 MHz signal switching, while low capacitance (CT ≤ 2.0 pF) supports RF detector and high-frequency clamp applications.

Thermal performance is defined under JEDEC-standard FR-4 mounting (1-inch², 2 oz copper pad), yielding RθJA = 357 °C/W and derated power dissipation down to 0 mW at +150°C ambient. The device operates across –55°C to +150°C and meets AEC-Q101 stress test requirements in automotive-grade variants (BAV70Q).

Key Specifications

Pinout & Package

Package: SOT23-3, surface-mount plastic package with matte tin-plated alloy 42 leadframe, moisture sensitivity level 1 per 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 switching diode applications.

Compared with MMBD7000-7-F and 1N4148W-7-F, the BAV70-7 uniquely combines dual diodes, low VF at low current, and SOT23 footprint - making it optimal for compact, high-speed bidirectional clamping where shared cathode simplifies routing and reduces component count.

Availability

BAV70-7 is available at Aetrix Electronics and suitable for USB interface protection, high-speed logic clamping, and RF detector front-ends requiring stable component supply and consistent parametric performance across production lots.

Supply support for BAV70-7 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 BAV70 series belongs to Diodes' general-purpose switching diode product line, engineered for high-speed, low-capacitance signal routing and protection in space-constrained consumer, computing, and industrial electronics.

FAQ

What is the pin configuration of BAV70-7 and how is polarity identified?

BAV70-7 uses SOT23-3 package with Pin 1 = Anode 1, Pin 2 = Common Cathode, Pin 3 = Anode 2. Polarity is marked by a bar adjacent to Pin 1 on the top surface, and the internal schematic confirms common-cathode topology. This configuration allows independent control of two signal paths sharing one return node.

Is BAV70-7 suitable for automotive applications?

The standard BAV70-7 is not AEC-Q101 qualified; however, the pin- and form-compatible BAV70Q-7-F variant is specifically designed for automotive use, manufactured in IATF 16949-certified facilities, and PPAP-capable. For automotive designs, BAV70Q-7-F must be specified to meet qualification and change-control requirements.

How does BAV70-7's thermal performance compare to similar SOT23 diodes?

BAV70-7 has RθJA = 357 °C/W when mounted on a 1-inch², 2 oz copper pad - matching industry-standard thermal characterization for SOT23. Its 350 mW power dissipation rating derates linearly to zero at +150°C ambient, consistent with JEDEC JESD51-2 guidelines and comparable to MMBD7000 and 1N4148W under identical board conditions.

Can BAV70-7 replace a single 1N4148 in circuit designs?

Yes - one diode element of BAV70-7 (e.g., Pins 1–2 or Pins 3–2) matches 1N4148 specifications including VF, trr, and VRRM. However, unused anode must be left unconnected or tied to cathode; the dual configuration adds no penalty in single-diode use and offers future flexibility for signal redundancy or differential clamping.