Taiwan Semiconductor Corporation D2SB05

Overview

D2SB05 from Taiwan Semiconductor is a 2A, 50V repetitive peak reverse voltage (V_RRM) standard quad bridge rectifier in GBL package, featuring 80A non-repetitive surge current (I_FSM), 1.1V max forward voltage at 2A, and AEC-Q101-qualified variants available. It serves as AC-to-DC conversion stage in compact off-line power supplies.

For engineers reviewing the D2SB05 datasheet, D2SB05 pinout, D2SB05 application, or D2SB05 equivalent, key selection criteria include V_RRM=50V rating, I_F=2A continuous current capability, GBL package thermal resistance (R_θJA=47°C/W), and UL recognition (E-326243) for safety-compliant designs.

Technical Context

The D2SB05 integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode and common-anode terminals externally accessible. Its GBL package supports PCB mounting with matte tin-plated leads compliant to J-STD-002 solderability and JESD201 Class 2 whisker resistance.

Thermal performance is defined by R_θJL=10°C/W (junction-to-lead) and R_θJA=47°C/W (junction-to-ambient), enabling operation up to T_J=150°C. Electrical behavior includes 10µA max reverse leakage at 25°C and 500µA at 125°C under rated V_R, with fusing I²t=26A²s for transient protection.

Key Specifications

Pinout & Package

Package: GBL - Molded plastic body with 4 external leads (AC1, AC2, +, −), UL 94V-0 rated, 2.00g weight, matte tin-plated leads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU2K and GBL04, the D2SB05 offers optimal balance of compact GBL footprint, UL recognition, and AEC-Q101 availability-making it preferred for space-constrained, safety-certified, or automotive-adjacent applications where 50V V_RRM suffices.

Availability

D2SB05 is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and LED lighting drivers requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for D2SB05 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 industrial, computing, and consumer markets since 1979.

The D2SB05 belongs to TSC's standard bridge rectifier product line, engineered for high-efficiency, high-reliability AC/DC front-end conversion in cost-sensitive, high-volume power applications.

FAQ

What is the maximum junction temperature rating for the D2SB05?

The D2SB05 has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version K2103). This rating applies under all operating conditions and must be respected in thermal design to ensure long-term reliability. Derating curves in the D2SB05 datasheet show allowable forward current reduction above 25°C ambient, and thermal resistance values (R_θJA=47°C/W, R_θJL=10°C/W) enable precise junction temperature calculation under actual load conditions.

Does the D2SB05 have UL recognition, and what does that mean for my design?

Yes, the D2SB05 carries UL Recognition under File # E-326243, confirming compliance with UL/CSA 60747-5-1 for discrete semiconductors. This means the device has been independently evaluated for electrical insulation, flammability (UL 94V-0 compound), and construction integrity-reducing certification effort for end equipment. For your design, UL recognition supports faster safety approval in AC-powered products such as adapters and lighting drivers without requiring additional component-level testing.

What is the forward voltage specification for the D2SB05, and how is it measured?

The D2SB05 has a maximum forward voltage (V_F) of 1.1 V per diode at I_F = 2 A and T_J = 25°C, measured using a pulse test with 0.3 ms pulse width. This value reflects worst-case conduction loss under nominal load and is critical for calculating power dissipation (P_cond ≈ 2 × V_F × I_F). At elevated temperatures or higher currents, V_F may increase slightly, but remains within design margins due to the device's 150°C T_J(max) rating.

Is there an automotive-qualified version of the D2SB05, and how is it identified?

Yes-the D2SB05H is the AEC-Q101 qualified variant of the D2SB05, explicitly listed in the ordering information section of the Taiwan Semiconductor datasheet (Version K2103). The "H" suffix denotes qualification to AEC-Q101 stress tests including temperature cycling, high-temperature reverse bias, and unbiased high-humidity operating life. D2SB05H shares identical electrical and thermal specifications with D2SB05 but adds automotive-grade reliability documentation and traceability for use in vehicle infotainment, body electronics, and ADAS auxiliary power systems.

What packaging and reel options are available for the D2SB05?

The D2SB05 is supplied in GBL package and packaged in tubes containing 25 units each, as specified in the official Taiwan Semiconductor ordering information (Version K2103). No tape-and-reel or bulk packaging options are listed for this part number. The tube format supports manual or semi-automated placement and is compatible with standard SMT reflow profiles. Lead finish is matte tin, meeting J-STD-002 solderability requirements for both leaded and lead-free processes.