Taiwan Semiconductor Corporation D2SB40

Overview

D2SB40 from Taiwan Semiconductor is a 2A, 400V repetitive peak reverse voltage (V_RRM) standard quad bridge rectifier in GBL package, featuring 80A surge capability (I_FSM), 10°C/W junction-to-lead thermal resistance, and AEC-Q101 qualification option - used for AC/DC conversion in compact switching power supplies.

For engineers reviewing the D2SB40 datasheet, D2SB40 pinout, D2SB40 application, or D2SB40 equivalent, key selection criteria include V_RRM = 400V, I_F = 2A, I_FSM = 80A, R_θJL = 10°C/W, and GBL package compatibility with high-density PCB layouts in industrial adapters and lighting drivers.

Technical Context

The D2SB40 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 surface-mount assembly and provides 2.00g mass with UL 94V-0 molding compound.

Thermal performance is defined by R_θJL = 10°C/W and R_θJA = 47°C/W, enabling operation up to T_J = 150°C. Electrical behavior includes V_F ≤ 1.1V at I_F = 2A and I_R ≤ 10µA at 25°C under rated reverse voltage.

Key Specifications

Pinout & Package

Package: GBL - molded plastic body with matte tin-plated leads, UL 94V-0 rated, 2.00g weight, designed for surface-mount reflow soldering per J-STD-002.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU4K and GBL40, the D2SB40 offers AEC-Q101 qualification in the compact GBL form factor with verified halogen-free compliance - making it optimal for space-constrained, automotive-adjacent, or eco-regulated industrial power supplies where 2A average current suffices.

Availability

D2SB40 is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and USB-C adapter designs requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.

Supply support for D2SB40 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, transistors, and TVS diodes, with global distribution and AEC-Q101 validation capability.

The D2SB40 belongs to TSC's standard bridge rectifier product line, engineered for cost-effective, high-reliability AC/DC front-end conversion in consumer, industrial, and automotive-qualified power systems.

FAQ

What is the peak repetitive reverse voltage rating for D2SB40?

The D2SB40 has a peak repetitive reverse voltage (V_RRM) rating of 400 V, confirmed in the Absolute Maximum Ratings table for the D2SB40 variant within the D2SB05–D2SB80 family. This value defines the maximum reverse voltage the device can block repeatedly without avalanche breakdown under normal operating conditions.

Does D2SB40 have automotive qualification?

Yes - the D2SB40H variant is AEC-Q101 qualified, as explicitly stated in the Ordering Information section. The base D2SB40 is not automatically qualified; only parts marked with the "H" suffix meet AEC-Q101 stress test requirements for automotive power electronics applications.

What is the thermal resistance from junction to lead for D2SB40?

The junction-to-lead thermal resistance (R_θJL) for D2SB40 is 10°C/W, per the Thermal Performance table. This parameter is critical for estimating temperature rise when mounting directly to a copper pour or heatsinked PCB land pattern without additional thermal interface materials.

Can D2SB40 be used in surface-mount applications?

Yes - the D2SB40 uses the GBL package with matte tin-plated leads, explicitly rated for surface-mount reflow soldering per J-STD-002. Its mechanical data confirms compatibility with standard SMT processes, and the package outline dimensions support automated placement on PCBs.

What is the forward voltage drop of D2SB40 at rated current?

The forward voltage drop (V_F) of D2SB40 is ≤1.1 V per diode at I_F = 2 A and T_J = 25°C, as specified in the Electrical Specifications table. This value reflects worst-case conduction loss under nominal load and impacts overall efficiency and thermal design of the power stage.