Diodes Incorporated RS1M-13-F

Overview

RS1M-13-F from Diodes Incorporated is a 1.0A surface-mount fast recovery rectifier in SMA package, rated for 1000V peak repetitive reverse voltage, 1.3V max forward voltage at 1.0A, and 150ns reverse recovery time. It delivers high-efficiency AC/DC conversion in compact power supplies and offline SMPS.

For engineers reviewing the RS1M-13-F datasheet, RS1M-13-F pinout, RS1M-13-F application, or RS1M-13-F equivalent, key selection criteria include its 1000V V_RRM, 30A non-repetitive surge rating, RoHS-compliant lead-free finish, and thermal resistance of 20°C/W - all critical for reliable high-voltage rectification in space-constrained designs.

Technical Context

This fast recovery rectifier employs glass-passivated die construction to ensure stable junction performance under thermal cycling and high dv/dt stress. Its 150ns t_RR enables efficient operation in 50–100kHz switching converters without excessive switching loss.

The device supports automated SMT assembly with moisture sensitivity level 1 (J-STD-020) and features a cathode band polarity indicator. Its 20°C/W junction-to-terminal thermal resistance allows direct thermal coupling to PCB copper for passive heat dissipation in low-fan or fanless systems.

Key Specifications

Pinout & Package

SMA package: molded plastic case (UL 94V-0), 2.29–2.92 mm width (A), 4.00–4.60 mm length (B), 1.27–1.63 mm height (C); cathode indicated by band on top surface.

Key Features

Applications

Availability

RS1M-13-F is available at Aetrix Electronics and suitable for AC-DC adapters, industrial PLC input stages, and LED driver secondary-side rectification requiring stable component supply and long-term manufacturing continuity.

Supply support for RS1M-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, specializing in high-reliability power management and signal integrity solutions for industrial, computing, and consumer markets.

The RS1x series belongs to Diodes' fast recovery rectifier product line, engineered specifically for high-voltage, medium-current AC/DC conversion where low forward drop and rapid recovery are essential for efficiency and EMI control.

FAQ

What is the maximum junction temperature for RS1M-13-F?

The RS1M-13-F has an operating junction temperature range of –65°C to +150°C. Its thermal resistance (R_θJT) is 20°C/W, meaning that at 1.0A DC current and 1.3V forward drop (1.3W dissipation), junction temperature rise above terminal temperature is 26°C - well within safe limits when mounted on ≥1 cm² of 2-oz copper.

Is RS1M-13-F compatible with lead-free reflow soldering profiles?

Yes. RS1M-13-F features a matte tin annealed finish over copper alloy leadframe and is qualified for lead-free reflow per JEDEC J-STD-020. Its moisture sensitivity level is Class 1, allowing unlimited floor life at ≤30°C/60% RH without baking prior to assembly.

How does RS1M-13-F differ from RS1M-B-13-F?

RS1M-13-F uses the SMA package (smaller footprint, 2.29–2.92 mm width), while RS1M-B-13-F uses the SMB package (larger, 3.30–3.94 mm width). Both share identical electrical specs (1000V V_RRM, 1.3V V_FM, 150ns t_RR), but SMB offers higher thermal mass and slightly better surge handling due to larger die attach area.

Can RS1M-13-F replace a standard 1N4007 in high-frequency designs?

No - while both are 1A/1000V rectifiers, the 1N4007 has ~2µs reverse recovery time and is unsuitable for >10kHz operation. RS1M-13-F's 150ns t_RR makes it viable for 50–500kHz switching supplies where 1N4007 would overheat and generate excessive EMI.