Diodes Incorporated ES1A-13-F

Overview

ES1A-13-F from Diodes Incorporated is a 1.0A surface-mount super-fast rectifier diode in SMA package, rated for 50V peak repetitive reverse voltage, 25ns reverse recovery time, and 30A non-repetitive surge current. It delivers low forward voltage drop (0.90V at 0.6A), operates from –55°C to +150°C, and is used in high-frequency AC/DC adapters, switch-mode power supplies, and DC-DC converters.

For engineers reviewing the ES1A-13-F datasheet, ES1A-13-F pinout, ES1A-13-F application, or ES1A-13-F equivalent, key selection criteria include its 25ns recovery time, 50V V_RRM, thermal resistance of 25°C/W, RoHS-compliant matte tin finish, and suitability for automated SMT assembly in compact power conversion designs.

Technical Context

This super-fast rectifier employs glass-passivated die construction to achieve stable junction performance under transient stress. Its 25ns reverse recovery time enables efficient operation in 100–500kHz switching topologies, while the 30A I_FSM rating supports robust inrush handling in offline SMPS front-ends.

The device exhibits 20pF typical junction capacitance at 4V reverse bias and 5µA max reverse leakage at 25°C - parameters critical for minimizing switching losses and EMI in high-density power stages. Its thermal resistance (R_θJT = 25°C/W) assumes a 5.0 mm² copper pad, defining PCB layout requirements for sustained 1.0A conduction.

Key Specifications

Pinout & Package

ES1A-13-F is housed in an SMA (DO-214AC) surface-mount plastic package with cathode band polarity marking. The package features matte tin–annealed copper leadframe terminals, UL 94V-0 mold compound, and moisture sensitivity level 1 per J-STD-020.

Key Features

Applications

Availability

ES1A-13-F is available at Aetrix Electronics and suitable for AC/DC adapters, USB-C PD power supplies, industrial DC-DC converters, and LED drivers requiring stable component supply, consistent parametric performance, and full traceability across production batches.

Supply support for ES1A-13-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, manufacturing, and sales operations across Asia, Europe, and North America.

The ES1x series belongs to Diodes' high-efficiency super-fast rectifier product line, engineered specifically for high-frequency switching power supplies where low recovery loss, robust surge capability, and SMT manufacturability are essential.

FAQ

What is the maximum junction temperature for continuous operation of ES1A-13-F?

The ES1A-13-F has a specified operating junction temperature range of –55°C to +150°C. For continuous 1.0A DC operation, the terminal temperature must not exceed +110°C per the derating curve in Figure 1. At that condition, junction temperature remains within safe limits assuming R_θJT = 25°C/W and proper PCB copper area.

Is ES1A-13-F compatible with lead-free reflow soldering profiles?

Yes. ES1A-13-F uses a matte tin–annealed copper leadframe with JEDEC-standard lead-free termination, qualified for peak reflow temperatures up to 260°C per J-STD-020. Its moisture sensitivity level is 1, eliminating bake requirements prior to assembly.

How does ES1A-13-F compare to ES1B-13-F in terms of circuit substitution?

ES1A-13-F (50V V_RRM) and ES1B-13-F (100V V_RRM) share identical package, thermal, and dynamic characteristics except reverse voltage rating. Substitution requires verifying that peak reverse voltage in the target circuit stays below 50V; exceeding this risks avalanche breakdown and premature failure.

Can ES1A-13-F be used in place of a Schottky diode in low-voltage outputs?

No. While ES1A-13-F offers low V_FM (0.90V), its 50V reverse rating and 25ns recovery are optimized for higher-voltage, higher-frequency inputs-not low-V_F secondary-side applications. Schottky diodes provide lower forward drop (<0.5V) and zero recovery charge, making them superior for <20V outputs.