Diodes Incorporated SD101BW-7-F

Overview

SD101BW-7-F from Diodes Incorporated is a Schottky barrier switching diode in SOD-123 package, rated for 50 V peak repetitive reverse voltage, 15 mA forward continuous current, and 0.41 V forward voltage at 1.0 mA - optimized for low-power signal switching in portable electronics and voltage clamping circuits.

For engineers reviewing the SD101BW-7-F datasheet, SD101BW-7-F pinout, SD101BW-7-F application, or SD101BW-7-F equivalent, key selection criteria include its 1.0 ns reverse recovery time, 2.1 pF total capacitance at 0 V, negligible stored charge, cathode-banded polarity marking, and RoHS-compliant green molding compound.

Technical Context

This device employs guard ring construction to enhance transient immunity and suppress leakage under high dv/dt conditions. Its Schottky junction delivers near-zero minority carrier storage, enabling operation up to 100 MHz in RF detector and sample-and-hold applications.

The SOD-123 package supports automated placement with 0.01 g mass and UL 94V-0 flammability rating. Thermal resistance is 300 °C/W (junction-to-ambient) on FR-4 board with recommended pad layout, limiting power dissipation to 400 mW at 25 °C ambient.

Key Specifications

Pinout & Package

SOD-123 surface-mount plastic package with cathode band marking; 2-terminal configuration; dimensions: 3.7 mm length × 1.2 mm width × 0.9 mm height (max); moisture sensitivity level 1 per J-STD-020D.

Key Features

Applications

Availability

SD101BW-7-F is available at Aetrix Electronics and suitable for ESD protection, RF detection, low-voltage bias generation, and high-speed logic interfacing requiring stable component supply across production lifecycles.

Supply support for SD101BW-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 SD101xW series belongs to Diodes' general-purpose Schottky diode product line, engineered for low-leakage, high-speed switching in space-constrained portable and industrial control applications.

FAQ

What is the maximum reverse voltage rating for SD101BW-7-F?

The SD101BW-7-F has a peak repetitive reverse voltage (V_RRM) rating of 50 V. This is the maximum instantaneous reverse voltage the device can withstand repeatedly without breakdown. It is tested at I_R = 10 μA and must not be exceeded in circuit design, especially in clamping or flyback protection applications where transient overshoot may occur.

Does SD101BW-7-F have a specified thermal resistance value?

Yes - the junction-to-ambient thermal resistance (R_θJA) is 300 °C/W when mounted on an FR-4 PCB using Diodes Incorporated's recommended pad layout (document AP02001). This value assumes natural convection cooling and defines the temperature rise per watt of dissipated power, critical for derating calculations above 25 °C ambient.

Is SD101BW-7-F compatible with lead-free reflow soldering processes?

Yes - SD101BW-7-F uses matte tin-plated leads over Alloy 42, qualified for lead-free reflow per JEDEC J-STD-020D. Its moisture sensitivity level is Grade 1, meaning it can be stored indefinitely at ≤30 °C/60% RH without baking prior to assembly, simplifying SMT line logistics.

How does the guard ring construction benefit circuit reliability?

The guard ring structure surrounds the active Schottky junction to prevent premature edge breakdown under high electric field stress. In practice, this improves robustness against fast-rising transients (e.g., ESD or inductive kick), reduces parameter shift after surge events, and maintains consistent V_BR over lifetime in automotive and industrial environments.