Diodes Incorporated S1M-13

Overview

S1M-13 from Diodes Incorporated is a 1.0A, 1000V peak repetitive reverse voltage (V_RRM) surface-mount glass passivated silicon rectifier diode in SMA package, with 1.1V forward voltage at 1.0A, 30A non-repetitive surge rating, and 2.0µs reverse recovery time - used for AC/DC input rectification in offline power supplies.

For engineers reviewing the S1M-13 datasheet, S1M-13 pinout, S1M-13 application, or S1M-13 equivalent, key selection criteria include V_RRM margin for line-voltage transients, thermal resistance (30°C/W) under PCB copper pad heatsinking, and derating behavior above 100°C terminal temperature per Fig. 1.

Technical Context

This single-phase, half-wave rectifier operates with resistive or inductive loads at 60Hz; for capacitive loads, average current must be derated by 20%. Its glass passivated die construction ensures stable leakage performance across -65°C to +150°C operating range.

The device exhibits low forward voltage drop (1.1V @ 1.0A), fast recovery (2.0µs trr measured at I_F=0.5A, I_R=1.0A, I_RR=0.25A), and typical junction-to-terminal thermal resistance of 30°C/W when mounted on 5.0 mm² × 0.013 mm copper pads.

Key Specifications

Pinout & Package

Package: SMA (Surface Mount Axial), molded plastic case, UL 94V-0 rated, cathode marked by band. Terminal polarity is anode/cathode; no internal circuitry beyond PN junction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N4007-T and ES1J, S1M-13 uniquely balances high-voltage ruggedness (1000V), surface-mount compatibility, and moderate-speed recovery (2.0µs) for cost-sensitive universal-input AC/DC front ends where thermal management via PCB copper is feasible.

Availability

S1M-13 is available at Aetrix Electronics and suitable for AC/DC adapters, LED drivers, industrial sensor power supplies, and motor control auxiliary supplies requiring stable component supply and RoHS-compliant manufacturing.

Supply support for S1M-13 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 centers across Asia and Europe.

S1x series rectifiers target cost-optimized, high-volume power conversion applications - emphasizing reliability, manufacturability, and compliance in consumer, industrial, and lighting power supplies.

FAQ

What is the maximum allowable junction temperature for S1M-13?

The absolute maximum junction temperature is +150°C, consistent with its specified operating range (T_j = –65°C to +150°C). Derating begins at T_T = 100°C per Fig. 1, where I_O drops linearly to zero at 150°C terminal temperature - actual junction temperature depends on R_θJT (30°C/W) and PCB copper heatsinking.

Can S1M-13 replace S1M in existing designs?

Yes - the "-13" suffix denotes Diodes Incorporated's revision 13 of the DS16003 datasheet and does not indicate a parametric or mechanical change. S1M-13 maintains identical electrical specs, SMA package dimensions, marking, and RoHS compliance as earlier S1M variants; it is a direct form-fit-function replacement.

Is S1M-13 suitable for capacitive-input filter applications?

No - the datasheet explicitly requires 20% derating of I_O for capacitive loads due to higher peak currents and increased thermal stress. For such applications, consider higher-current-rated alternatives like S2M-13 or verify thermal performance with worst-case ripple current and ESR in simulation.

Does S1M-13 have a lead-free finish?

Yes - S1M-13 is supplied with a matte tin lead-free plating compliant with RoHS Directive 2011/65/EU, including exemptions for glass and high-temperature solder per Annexes 5 and 7. No additional suffix (e.g., "-F") is needed; the "-13" part number inherently denotes the RoHS-compliant version.