Taiwan Semiconductor Corporation S5M

Overview

S5M from Taiwan Semiconductor is a 5 A, 1000 V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, 100 A peak surge current capability, and low forward voltage drop of ≤1.15 V at 5 A and 25°C - used in high-voltage AC/DC front-end stages of industrial SMPS and lighting converters.

For engineers reviewing the S5M datasheet, S5M pinout, S5M application, or S5M equivalent, key selection criteria include repetitive peak reverse voltage (1000 V), thermal resistance (13 °C/W junction-to-lead), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and compatibility with automated placement on high-reliability power boards.

Technical Context

The S5M is a single-die, standard recovery rectifier optimized for high-voltage, medium-current switching applications. Its 150 °C maximum junction temperature and 13 °C/W junction-to-lead thermal resistance support sustained operation under convection-cooled conditions in compact power supplies.

Electrical behavior is defined by a typical reverse recovery time of 1500 ns (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A), 60 pF junction capacitance at 1 MHz and 4 V reverse bias, and leakage current limited to 10 µA at 25°C and 250 µA at 125°C under rated reverse voltage.

Key Specifications

Pinout & Package

DO-214AB (SMC) surface-mount package with cathode band marking; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance; UL 94V-0 molding compound; weight ≈ 0.210 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-5EWH10-M3 and MUR5100CT, the S5M offers superior thermal coupling (13 °C/W vs. ≥25 °C/W) and lower forward loss in space-constrained, convection-cooled applications - making it optimal for cost-sensitive, high-volume industrial power supplies where reliability under sustained load matters most.

Availability

S5M is available at Aetrix Electronics and suitable for industrial SMPS, LED streetlight drivers, AC/DC adapters for industrial IoT, and DC link protection in motor drives requiring stable component supply and long-term lifecycle continuity.

Supply support for S5M 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS devices, and MOSFETs for industrial and consumer markets.

The S5M belongs to TSC's S5x series of surface-mount standard recovery rectifiers, engineered specifically for high-voltage, medium-current AC/DC conversion in cost-sensitive, high-reliability power systems.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) rating for the S5M?

The S5M has a VRRM rating of 1000 V, confirmed in the Absolute Maximum Ratings table of Taiwan Semiconductor's F2102 datasheet. This allows safe operation with up to 700 V_RMS AC inputs and provides sufficient margin for transient spikes in industrial mains-fed equipment. The S5M maintains this rating across its full operating temperature range of –55°C to +150°C.

Does the S5M have a specified reverse recovery time (trr), and how is it measured?

Yes, the S5M has a typical reverse recovery time (trr) of 1500 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per the Electrical Specifications table. This value reflects standard recovery behavior suitable for line-frequency and low-kHz switching applications. The S5M is not intended for high-frequency synchronous rectification where ultrafast trr (<100 ns) is required.

Is the S5M compliant with RoHS and halogen-free requirements?

Yes, the S5M is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the Features section of the F2102 datasheet. The device uses matte tin-plated leads and UL 94V-0 molding compound, satisfying environmental compliance requirements for export to EU, Japan, and other regulated markets. No exemptions apply.

What is the thermal resistance from junction to lead (R_θJL) for the S5M, and why does it matter?

The S5M has a typical junction-to-lead thermal resistance (R_θJL) of 13 °C/W, enabling efficient heat transfer directly into the PCB copper. This parameter is critical for thermal design: it means that with 5 A continuous current and 1.15 V forward drop (≈5.75 W dissipation), the junction-to-lead temperature rise is only ~75°C - allowing reliable operation without external heatsinks in well-designed layouts. This value is verified in the Thermal Performance section of the datasheet.

Can the S5M be used as a direct replacement for the S5K or S5J in an existing design?

No - while the S5M shares the same DO-214AB package and 5 A current rating with S5K (800 V) and S5J (600 V), its 1000 V VRRM rating introduces different voltage derating, surge margin, and potential parasitic effects. Substituting S5M for lower-voltage variants may alter clamping behavior and require verification of layout creepage, snubber sizing, and system-level overvoltage immunity. Always validate with actual waveforms before replacement.