Diodes Incorporated S2M-13-F

Overview

S2M-13-F from Diodes Incorporated is a 1000 V, 1.5 A surface-mount glass passivated silicon rectifier diode in SMB package, featuring 50 A non-repetitive surge capability, 1.15 V forward voltage at 1.5 A, and 5.0 µA peak reverse current at 25°C - used in AC/DC input stage rectification for industrial power supplies and LED drivers.

For engineers reviewing the S2M-13-F datasheet, S2M-13-F pinout, S2M-13-F application, or S2M-13-F equivalent, key selection criteria include peak repetitive reverse voltage (1000 V), average forward current derating above 100°C, thermal resistance (20 °C/W), and RoHS-compliant matte tin plating for lead-free reflow compatibility.

Technical Context

This SMB-packaged rectifier operates as a single-phase, half-wave silicon junction diode optimized for high-voltage, medium-current DC output generation. Its glass passivated die construction ensures stable reverse leakage (<125 µA at 125°C) and robust surge immunity (50 A, 8.3 ms sine wave).

Thermal performance relies on PCB copper pad heatsinking (5.0 mm², 0.013 mm thick), enabling full 1.5 A average current only when terminal temperature is maintained at ≤100°C. Capacitance is low (20 pF @ 1 MHz, 4 V), minimizing switching noise in line-frequency applications.

Key Specifications

Pinout & Package

SMB (DO-214AA) plastic package with cathode band marking; dimensions: 3.30–3.94 mm (L) × 4.06–4.57 mm (W) × 1.96–2.21 mm (H); weight ≈ 0.093 g.

Key Features

Applications

Availability

S2M-13-F is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver input stages, and capacitor-input filter circuits requiring stable component supply across long-lifecycle production programs.

Supply support for S2M-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, serving industrial, computing, consumer, and communications markets with high-reliability components.

The S2x/A series targets cost-sensitive, high-volume power conversion applications where ruggedness, RoHS compliance, and standardized SMB/SMA packaging are critical design requirements.

FAQ

What is the maximum allowable junction temperature for continuous operation of S2M-13-F?

The S2M-13-F has an operating temperature range of –65°C to +150°C, but its 1.5 A average forward current rating is specified only at terminal temperature ≤100°C. Exceeding this requires derating per Figure 1; junction temperature must remain below 150°C under all conditions, verified via thermal modeling or measurement.

Can S2M-13-F replace S2M-E3/57T in existing designs?

Yes - both are SMB-packaged 1000 V, 1.5 A rectifiers with identical pinout, thermal resistance (~20 °C/W), and electrical specs. S2M-13-F uses matte tin plating and green compound per Diodes' Rev. 14 spec; S2M-E3/57T (Vishay) shares equivalent ratings but differs in marking and traceability documentation.

Is S2M-13-F suitable for use in full-bridge rectifier configurations?

Yes - the S2M-13-F is rated for single-phase, half-wave operation but is fully compatible in full-bridge arrangements. Four units can be used per bridge; ensure layout symmetry and equal thermal coupling to maintain balanced current sharing and avoid premature failure due to thermal runaway.

Does S2M-13-F require derating when used with capacitive loads?

Yes - the datasheet explicitly states that average forward current must be derated by 20% for capacitance-input filter loads. At 25°C ambient, I(AV) drops from 1.5 A to 1.2 A to prevent excessive peak current stress during capacitor charging cycles.