Diodes Incorporated BAS16TW-7

Overview

BAS16TW-7 from Diodes Incorporated is a dual-channel surface-mount fast-switching diode array in SOT363 package, rated for 75 V peak repetitive reverse voltage, 300 mA forward current, and 4.0 ns reverse recovery time. It delivers high conductance with low forward voltage (0.715 V at 1 mA) and ultra-low junction capacitance (2.0 pF), enabling use in high-speed signal routing and clamping circuits in portable power management systems.

For engineers reviewing the BAS16TW-7 datasheet, BAS16TW-7 pinout, BAS16TW-7 application, or BAS16TW-7 equivalent, key selection criteria include reverse recovery time, junction capacitance, thermal resistance (625 °C/W), and dual-diode configuration suitability for level-shifting, ESD protection, and logic interface conditioning in space-constrained PCB layouts.

Technical Context

This dual diode array integrates two independent, matched silicon switching diodes in a single compact SOT363 package. Each element exhibits identical electrical characteristics - including symmetrical forward conduction and reverse blocking behavior - and shares common thermal path to the leadframe.

The device operates across –55 °C to +150 °C ambient temperature range with 200 mW total package power dissipation. Its 4.0 ns trr and 2.0 pF CT at 0 V/1 MHz support high-frequency (>100 MHz) signal integrity in digital I/O buffering and RF detector applications.

Key Specifications

Pinout & Package

SOT363 is a 6-pin, dual-row, surface-mount plastic package with gull-wing leads. Pin 1 (anode of D1) and Pin 2 (cathode of D1) form the first diode; Pin 5 (anode of D2) and Pin 6 (cathode of D2) form the second diode. Pins 3 and 4 are internally connected to the common cathode tie point (shared thermal pad).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MMBD4148TW-7-F and BAS16TWQ-7-F, BAS16TW-7 offers identical performance in commercial-grade applications with optimized cost and supply continuity, while the Q-grade version adds qualification rigor without electrical trade-offs.

Availability

BAS16TW-7 is available at Aetrix Electronics and suitable for USB interface protection, microcontroller I/O safeguarding, and level translation circuits requiring stable component supply across consumer electronics, industrial control panels, and IoT edge devices.

Supply support for BAS16TW-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 centers across Asia and manufacturing facilities in China, Taiwan, and the U.S.

The BAS16TW series belongs to Diodes' general-purpose switching diode product line, engineered specifically for high-speed, low-capacitance signal routing in compact, thermally constrained PCB environments.

FAQ

Is BAS16TW-7 pin-compatible with MMBD4148TW-7-F?

Yes, BAS16TW-7 and MMBD4148TW-7-F share identical SOT363 packaging, pin numbering, internal schematic (dual anode-to-common-cathode), and mechanical dimensions. Both devices use the same top-marking layout and thermal pad configuration, allowing direct substitution without PCB modification.

What is the maximum junction temperature during continuous operation at 300 mA?

At 300 mA forward current and 25 °C ambient, junction temperature rise is calculated as ΔT = P_D × R_θJA. With P_D ≈ 0.225 W (V_F ≈ 0.75 V × 0.3 A) and R_θJA = 625 °C/W, ΔT ≈ 141 °C. Thus, T_J ≈ 166 °C - exceeding the 150 °C absolute maximum. Derating is required above 70 °C ambient or 150 mA load.

Can BAS16TW-7 be used in reverse-biased Zener mode?

No. BAS16TW-7 is not specified or characterized for Zener operation. Its reverse breakdown voltage is rated at minimum 75 V with no guaranteed regulation slope or power handling in avalanche. For voltage reference or clamping above 5 V, use a dedicated Zener diode such as BZX84-C5V1.

Does the common cathode connection (Pins 3 & 4) require external grounding?

No - Pins 3 and 4 are internally shorted to the die's common cathode node and serve as the thermal and electrical return path. They must be soldered to a PCB copper pour for thermal management but do not require active grounding unless the circuit topology demands it (e.g., clamping to GND). Their potential follows the lowest cathode voltage among both diodes.