onsemi DF01S

Overview

DF01S from Diodes Incorporated is a 1.0A surface-mount standard recovery bridge rectifier with 100V peak repetitive reverse voltage (VRRM), 1.1V maximum forward voltage at 1.0A, and 10µA maximum reverse leakage current at 25°C. It features glass-passivated die construction, UL recognition (E364304), and is rated for 50A non-repetitive surge current - used in AC/DC front-end conversion for industrial power supplies and LED drivers.

For engineers reviewing the DF01S datasheet, DF01S pinout, DF01S application, or DF01S equivalent, key selection criteria include VRRM margin for line-voltage transients, thermal resistance (40°C/W junction-to-ambient), surge capability (50A IFSM), and RoHS-compliant lead-free terminations suitable for automated SMT assembly.

Technical Context

This single-phase, full-wave bridge rectifier integrates four silicon diodes in a monolithic DF-S package. It operates under resistive or inductive loads at 60Hz, with derating required for capacitive loads (−20% IO). The device uses glass passivation for enhanced reliability and moisture resistance.

Thermal performance is defined with 5.0mm² copper land pads (0.03mm thick); junction temperature must remain within −55°C to +150°C. Reverse recovery is not specified - confirming standard (non-fast) recovery behavior appropriate for line-frequency rectification, not high-frequency switching.

Key Specifications

Pinout & Package

Package: DF-S, surface-mount molded plastic (UL 94V-0), 0.38g weight, tin-plated terminals solderable per MIL-STD-202 Method 208.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU1K and MB1S, DF01S uniquely balances compact DF-S footprint, 50A surge robustness, and UL recognition - making it optimal for cost-sensitive, safety-certified, medium-power industrial and lighting designs where space and reliability are both critical.

Availability

DF01S is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver front-end rectification, and consumer appliance power inputs requiring stable component supply and consistent SMT assembly performance.

Supply support for DF01S 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 the Americas.

The DF-S bridge rectifier series targets cost-effective, certified, surface-mount AC/DC conversion for industrial, lighting, and consumer power applications - emphasizing reliability, regulatory compliance, and manufacturability.

FAQ

What is the maximum ambient temperature for continuous 1.0A operation?

DF01S delivers 1.0A average forward current only at TA = +40°C, as specified in the Absolute Maximum Ratings table. At higher ambient temperatures, output current must be derated per Figure 1 - e.g., to ~0.7A at +85°C - due to thermal limitations imposed by its 40°C/W junction-to-ambient resistance and 150°C max junction temperature.

Is DF01S suitable for use in AEC-Q200 qualified automotive applications?

DF01S itself is not AEC-Q200 qualified; however, Diodes offers automotive-grade variants (e.g., DF01SA) with PPAP capability, IATF 16949 manufacturing, and extended temperature screening. Standard DF01S may be used in non-safety-critical automotive subsystems only after full qualification by the end customer per their internal requirements.

Does DF01S have a specified reverse recovery time (trr)?

No - the datasheet does not specify trr, confirming DF01S is a standard (not fast- or ultrafast) recovery rectifier. Its intended use is line-frequency (50/60Hz) AC/DC conversion, not high-frequency switching. For applications above 20kHz, a fast-recovery alternative like DF01M (trr = 500ns) should be selected instead.

Can DF01S be hand-soldered using a standard iron?

While possible, hand-soldering DF01S is not recommended due to its molded plastic DF-S package and thermal mass. Reflow soldering per J-STD-020 (MSL Level 1) is specified. If hand-soldering is unavoidable, use a temperature-controlled iron ≤350°C, contact time <3 seconds per terminal, and avoid mechanical stress on leads during cooling to prevent delamination or cracking.