Taiwan Semiconductor Corporation S2J R5G

Overview

S2J R5G from Taiwan Semiconductor is a 600 V, 2 A standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring 1.15 V max forward voltage at 2 A and 1 µA max reverse leakage at 25°C, used for AC/DC conversion in compact switching power supplies.

For engineers reviewing the S2J R5G datasheet, S2J R5G pinout, S2J R5G application, or S2J R5G equivalent, key selection criteria include repetitive peak reverse voltage (600 V), surge current rating (50 A), thermal resistance (16 °C/W junction-to-lead), moisture sensitivity level (MSL 1), and RoHS/halogen-free compliance for high-reliability industrial and lighting designs.

Technical Context

This device is a single-die, glass-passivated PN-junction standard rectifier optimized for automated SMT assembly. Its 1500 ns reverse recovery time and 30 pF junction capacitance reflect trade-offs favoring low conduction loss over ultra-fast switching.

Designed for continuous forward conduction in unidirectional DC-link and output rectification stages, it operates across –55°C to +150°C junction temperature range with 53 °C/W junction-to-ambient thermal resistance under standard PCB mounting conditions.

Key Specifications

Pinout & Package

Package: DO-214AA (SMB), surface-mount, molded plastic case with matte tin-plated leads; polarity indicated by cathode band; weight ≈ 0.090 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R06 and ES2J, the S2J R5G delivers lower conduction loss (1.15 V vs ≥1.7 V) at 25°C, making it preferable for thermally limited 50–100 kHz SMPS where efficiency and junction temperature are critical.

Availability

S2J R5G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply and full traceability.

Supply support for S2J R5G 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, serving global power and protection markets since 1979.

The S2A–S2V series was developed to deliver cost-effective, high-reliability standard rectifiers for mainstream AC/DC conversion in consumer, industrial, and lighting applications with stringent environmental compliance requirements.

FAQ

What is the maximum junction temperature rating for the S2J R5G?

The S2J R5G has a maximum junction temperature (T_JMAX) of +150°C, enabling reliable operation in enclosed power supplies and high-ambient-temperature industrial environments. This rating is validated per JEDEC test conditions and aligns with its 16 °C/W junction-to-lead thermal resistance. Derating curves in the official datasheet define safe operating current limits above 75°C case temperature. The S2J R5G must be mounted on appropriate copper area to maintain this limit under full load.

Does the S2J R5G meet RoHS and halogen-free requirements?

Yes, the S2J R5G is RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. These certifications are confirmed in Taiwan Semiconductor's official product documentation and verified through material declarations. The device uses matte tin-plated leads and UL 94V-0 molding compound, supporting environmentally regulated end equipment. No exemptions apply, and full compliance applies to all production lots of S2J R5G.

What is the reverse recovery time (t_rr) specification for the S2J R5G?

The S2J R5G has a typical reverse recovery time (t_rr) of 1500 ns under test conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value reflects its standard recovery behavior-optimized for conduction efficiency rather than speed-and is documented in the Electrical Specifications table of the official datasheet. It is not suitable for high-frequency (>200 kHz) synchronous rectification but performs reliably in 50–100 kHz flyback and forward converters.

Is the S2J R5G pin-compatible with other DO-214AA rectifiers like ES2J or STTH2R06?

The S2J R5G uses the DO-214AA (SMB) package with standard anode/cathode terminal configuration, matching the physical pinout of ES2J and STTH2R06. However, "pin-compatible" refers only to mechanical fit-not electrical or thermal equivalence. While solder pad layout is identical, differences in V_F, t_rr, and thermal resistance require validation of thermal performance and efficiency in the target circuit before substitution. The S2J R5G is not a drop-in replacement without system-level review.

What packaging and moisture sensitivity level does the S2J R5G have?

The S2J R5G is supplied in tape-and-reel packaging (3,000 units per reel) and classified as Moisture Sensitivity Level 1 (MSL 1) per J-STD-020. This means it has unlimited floor life at ≤30°C/60% RH and requires no baking prior to reflow soldering. The matte tin-plated leads ensure solderability per J-STD-002, and the UL 94V-0 compound provides flame resistance. These attributes make the S2J R5G ideal for high-throughput SMT lines without special handling.