Diodes Incorporated DFLR1600-7

Overview

DFLR1600-7 from Diodes Incorporated is a 600 V, 1.0 A surface-mount glass passivated rectifier in the PowerDI®123 package, featuring 1.1 V max forward voltage at 1.0 A and 3 µA max reverse leakage at 25°C, optimized for AC-DC adapters, DC-DC converters, and freewheeling applications in compact power supplies.

For engineers reviewing the DFLR1600-7 datasheet, DFLR1600-7 pinout, DFLR1600-7 application, or DFLR1600-7 equivalent, key selection criteria include peak repetitive reverse voltage (600 V), thermal resistance (134 °C/W junction-to-ambient), low-profile height (<1.1 mm), RoHS-compliant lead-free finish, and surge capability (25 A IFSM).

Technical Context

This device is a single-phase, silicon planar epitaxial power rectifier with glass-passivated junction for enhanced reliability under high-humidity and high-temperature operating conditions. Its construction enables stable performance across -65°C to +150°C ambient range and supports automated SMT assembly without solderability degradation.

The PowerDI®123 package integrates a patented interlocking clip design (US Patent #7,095,113) that improves mechanical robustness and surge current handling. Thermal path optimization targets low R_θJS (6 °C/W) when mounted on standard FR-4 PCBs with recommended 2 oz copper pad layout per AP02001.

Key Specifications

Pinout & Package

Package: PowerDI®123 - Surface-mount, low-profile (height <1.1 mm), molded plastic case with UL 94V-0 flammability rating and matte tin-plated copper leadframe.

Key Features

Applications

Availability

DFLR1600-7 is available at Aetrix Electronics and suitable for AC-DC adapters, DC-DC converters, and freewheeling diode applications requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for DFLR1600-7 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 DFLR series belongs to Diodes' general-purpose rectifier product line, engineered for cost-effective, high-reliability AC/DC and DC/DC power conversion in space-constrained consumer and industrial applications.

FAQ

What is the maximum junction temperature for DFLR1600-7?

The DFLR1600-7 has an operating junction temperature range of –65°C to +150°C. This rating is validated per JEDEC standards and confirmed in the DS30602 datasheet Rev. 9–2, page 2, under Thermal Characteristics. Derating begins at 25°C ambient per the DC forward current curve in Figure 4.

Is DFLR1600-7 suitable for use in automotive applications?

DFLR1600-7 is qualified for commercial temperature range (–65°C to +150°C) but is not AEC-Q101 qualified. It may be used in non-safety-critical automotive accessory circuits (e.g., infotainment power supplies) only after full system-level validation per customer requirements and environmental stress testing.

How does the PowerDI®123 package compare thermally to SMA or SOD-123?

PowerDI®123 offers R_θJS = 6 °C/W (junction-to-solder point), significantly lower than SMA (≈25 °C/W) and SOD-123 (≈40 °C/W), due to its exposed cathode tab acting as a direct thermal path to PCB copper. This enables higher power density in compact layouts without added thermal vias.

Can DFLR1600-7 replace DFLR1400-7 in an existing design?

Yes - DFLR1600-7 is a direct upgrade from DFLR1400-7 with identical package, pinout, and forward characteristics, but rated for 600 V V_RRM instead of 400 V. No layout or thermal changes are needed; it provides increased reverse voltage margin for designs targeting universal input or higher bus voltages.