Taiwan Semiconductor Corporation SR206 B0G

Overview

SR206 B0G from Taiwan Semiconductor is a 2 A, 60 V Schottky barrier rectifier in DO-204AC (DO-15) package, featuring 0.70 V max forward voltage at 2 A and 500 µA max reverse leakage at 25°C. It delivers high surge current capability (50 A, 8.3 ms), junction-to-lead thermal resistance of 21.7°C/W, and is optimized for DC/DC converters and AC/DC adapters.

For engineers reviewing the SR206 B0G datasheet, SR206 B0G pinout, SR206 B0G application, or SR206 B0G equivalent, key selection factors include its 60 V repetitive peak reverse voltage, AEC-Q101 qualification option (H suffix), low VF trade-off vs. higher VR models, and DO-15 leaded package compatibility with through-hole power supply layouts.

Technical Context

This single-die Schottky rectifier operates with a maximum junction temperature of 125°C (standard grade) and supports continuous forward current up to 2 A. Its guard ring structure provides overvoltage protection, while the pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker requirements.

The device exhibits 10,000 V/µs critical rate of rise of off-state voltage and achieves 75.0°C/W junction-to-ambient thermal resistance in standard PCB mounting. Reverse leakage remains ≤500 µA at 25°C and ≤5 mA at 100°C under rated 60 V reverse bias.

Key Specifications

Pinout & Package

Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case meeting UL 94V-0. Cathode indicated by band; leads are pure tin plated per J-STD-002.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-2EY60-M3/57T and SB260-E3/54, SR206 B0G offers optimal balance of DO-15 compatibility, 0.70 V V_F ceiling, and 500 µA I_R - making it preferred for cost-sensitive, volume production of adapters and industrial SMPS where layout reuse is critical.

Availability

SR206 B0G is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and DC/DC converters requiring stable component supply, long-term manufacturability, and RoHS/halogen-free compliance.

Supply support for SR206 B0G 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q101 qualified product lines.

The SR202–SR220 series was designed specifically for high-efficiency, cost-optimized secondary-side rectification in consumer and industrial power supplies, emphasizing low VF, robust surge capability, and standardized DO-15 packaging.

FAQ

What is the maximum junction temperature rating for SR206 B0G?

The SR206 B0G has a maximum junction temperature (T_J) of +125°C under continuous operation. This rating applies to the standard-grade version; AEC-Q101 qualified variants (e.g., SR206H B0G) extend T_J to +150°C. Thermal design must ensure that actual junction temperature stays below this limit under worst-case ambient and power dissipation conditions.

Does SR206 B0G have AEC-Q101 qualification?

No, SR206 B0G is not AEC-Q101 qualified. The "B0G" suffix indicates green compound and tape-and-reel packaging (3,500 pcs), but does not denote automotive qualification. For AEC-Q101 compliance, specify SR206H B0G - the "H" suffix explicitly denotes AEC-Q101 qualification per the ordering code table in the datasheet.

What is the forward voltage specification for SR206 B0G at 2 A and 100°C junction temperature?

The datasheet specifies V_F = 0.70 V maximum at I_F = 2 A and T_J = 25°C. At 100°C, V_F decreases due to negative temperature coefficient; typical data shows ~0.62 V at 100°C. However, only the 25°C max value (0.70 V) is guaranteed - design margins should be based on that limit.

Can SR206 B0G replace SR205 B0G in an existing design?

Yes, SR206 B0G can directly replace SR205 B0G because both share identical package (DO-204AC), pinout, and thermal characteristics. The only difference is V_RRM: SR205 is rated for 50 V, SR206 for 60 V. Using SR206 B0G provides 10 V additional reverse margin without any circuit or layout changes.

What does the "B0G" suffix mean in SR206 B0G?

The "B0G" suffix in SR206 B0G indicates green molding compound (G) and tape-and-reel packaging (B0 = 3,500 pcs per reel). It is not related to voltage grade or qualification level. The "SR206" portion defines the 60 V V_RRM rating; "B0G" solely identifies packaging and environmental compliance - consistent across the SR202–SR220 family.