Diodes Incorporated SDT8A100P5-7D

Overview

SDT8A100P5-7D from Diodes Incorporated is a 100 V, 8 A Trench Schottky barrier rectifier in the PowerDI5 surface-mount package, featuring 0.70 V max forward voltage at 8 A and 0.1 mA max reverse leakage at 100 V and +25°C. It operates up to +150°C junction temperature and delivers soft, fast switching with low thermal resistance (R_θJC = 3 °C/W on aluminum substrate), making it suitable for high-efficiency DC-DC converters and AC-DC adapters.

For engineers reviewing the SDT8A100P5-7D datasheet, SDT8A100P5-7D pinout, SDT8A100P5-7D application, or SDT8A100P5-7D equivalent, key selection criteria include its low VF stability across temperature, 150 A non-repetitive surge rating, RoHS-compliant matte tin terminations, and thermally optimized PowerDI5 footprint for compact power stage layouts.

Technical Context

This Schottky rectifier uses trench MOS structure to reduce forward voltage while maintaining low leakage-critical for synchronous rectification and freewheeling paths where conduction loss dominates. Its 0.66 V typical VF at 8 A and +125°C enables higher efficiency than planar Schottkys in thermally constrained designs.

The PowerDI5 package provides dual thermal paths: 9 °C/W junction-to-case on FR-4 PCB (2 oz Cu) and 3 °C/W on 2"×2" aluminum substrate, enabling reliable operation at full 8 A average current when properly heatsinked. Reverse recovery is inherently negligible due to majority-carrier conduction.

Key Specifications

Pinout & Package

Package: PowerDI5 - compact 3-terminal surface-mount package with exposed cathode pad for enhanced thermal dissipation and mechanical robustness. Dimensions: 3.966 mm × 6.51 mm × 1.10 mm (L × W × H); weight: 0.093 g.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Compared with VS-8EWH10FN-M3/45 and SB8100, the SDT8A100P5-7D offers the lowest VF at high temperature and best thermal performance in the smallest footprint-making it optimal for space-constrained, high-efficiency power conversion where thermal headroom is limited.

Availability

SDT8A100P5-7D is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and industrial power supplies requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.

Supply support for SDT8A100P5-7D 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, specializing in high-performance power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

The SDT8A100P5 belongs to Diodes' Trench Schottky Rectifier product line, engineered specifically for high-efficiency, high-temperature power conversion in space-constrained applications where low VF and thermal reliability are critical.

FAQ

What is the recommended PCB pad layout for SDT8A100P5-7D?

The PowerDI5 package requires a minimum 1.0 cm² copper pour connected to the exposed cathode pad using ≥4 thermal vias (0.3 mm diameter, spaced ≤1.2 mm apart) to achieve the 3 °C/W R_θJC rating on aluminum substrates. Diodes' official outline drawing (Package Code: PowerDI5) specifies exact pad dimensions: 4.86 mm × 3.36 mm for the cathode pad, with 0.89 mm and 1.78 mm widths for anode and cathode leads respectively.

Does SDT8A100P5-7D meet AEC-Q101 qualification?

No-SDT8A100P5-7D is not AEC-Q101 qualified. Diodes offers automotive-grade variants (e.g., SDT8A100P5Q-7D) with PPAP documentation, IATF 16949 manufacturing, and extended temperature screening. This standard part is intended for commercial and industrial applications; automotive users must specify the "Q" suffix and contact Diodes' automotive team for qualification reports.

How does SDT8A100P5-7D perform at elevated temperatures?

At +125°C junction temperature, VF drops to 0.66 V (typical) at 8 A, improving conduction efficiency, while IR rises to 20 mA at 100 V-still within safe operating limits for most adapter and converter applications. Derating curves show usable current remains ≥6.5 A at +125°C case temperature, verified per Figure 4 in DS38989 Rev. 4-2.

Can SDT8A100P5-7D replace a 100 V/10 A Schottky in existing designs?

Only with thermal validation: although rated for 8 A average current, its 150 A surge capability matches many 10 A parts. However, power dissipation at 10 A would exceed 7 W-exceeding the 5.5 W limit shown in Figure 1. Layout redesign with larger copper area or active cooling is required to safely operate above 8 A continuous.