Taiwan Semiconductor Corporation D2SB20H

Overview

D2SB20H from Taiwan Semiconductor is a 2A, 200V repetitive peak reverse voltage (V_RRM) standard quad bridge rectifier in GBL package, featuring 80A surge current capability, 1.1V max forward voltage per diode at 2A, and AEC-Q101 qualification for automotive-grade reliability - used in AC/DC front-end stages of compact switching mode power supplies.

For engineers reviewing the D2SB20H datasheet, D2SB20H pinout, D2SB20H application, or D2SB20H equivalent, key selection criteria include V_RRM = 200V, I_F = 2A, I_FSM = 80A, AEC-Q101 qualification status, and GBL package thermal performance (R_θJL = 10°C/W).

Technical Context

The D2SB20H integrates four silicon diodes in a single-phase full-wave bridge configuration with common-cathode/common-anode topology, enabling direct AC-to-DC conversion without external interconnection. Its GBL package supports surface-mount assembly and provides 2.00g mass with UL 94V-0 molding compound.

Thermally, it delivers R_θJL = 10°C/W and R_θJA = 47°C/W, allowing sustained 2A average forward current up to 150°C junction temperature. Reverse leakage remains ≤10µA at 25°C and ≤500µA at 125°C under rated V_R.

Key Specifications

Pinout & Package

Package: GBL - molded plastic body with matte tin-plated leads, UL 94V-0 rated, 2.00g weight, polarity marked on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU2K and DB202S, the D2SB20H uniquely combines AEC-Q101 qualification, GBL footprint, and 10°C/W junction-to-lead thermal resistance - making it optimal for space-constrained automotive and industrial power supplies requiring validated reliability.

Availability

D2SB20H is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and LED lighting drivers requiring stable component supply with automotive-grade qualification and consistent GBL packaging.

Supply support for D2SB20H 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 automotive markets since 1979.

The D2SB20H belongs to TSC's AEC-Q101-qualified standard bridge rectifier family, engineered for robust AC/DC conversion in thermally demanding, safety-critical power systems.

FAQ

What is the peak repetitive reverse voltage rating of the D2SB20H?

The D2SB20H has a peak repetitive reverse voltage (V_RRM) rating of 200 V. This value is fixed for the "20" variant in the D2SBx series and defines the maximum AC voltage the device can block across its AC terminals without breakdown. It is verified per JEDEC test conditions and applies across the full operating temperature range.

Is the D2SB20H suitable for automotive applications?

Yes, the D2SB20H is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life - confirming suitability for under-hood and cabin electronics where reliability is critical. The D2SB20H meets these requirements in its native GBL package.

What does the "H" suffix mean in D2SB20H?

The "H" suffix in D2SB20H denotes AEC-Q101 qualification per Taiwan Semiconductor's ordering nomenclature. It distinguishes this version from the standard D2SB20, which lacks automotive-grade validation. Both share identical electrical parameters and GBL packaging, but only D2SB20H carries the certified test report and qualification documentation required for automotive BOMs.

What is the forward voltage drop of the D2SB20H at rated current?

The D2SB20H exhibits a maximum forward voltage drop (V_F) of 1.1 V per diode at I_F = 2 A and T_J = 25°C. This value is measured under pulsed conditions (PW = 0.3 ms) and represents worst-case conduction loss - directly impacting efficiency and thermal design in high-duty-cycle applications like SMPS and adapters.

Does the D2SB20H require heatsinking in typical applications?

The D2SB20H can operate without external heatsinking at 2 A average current up to ~50°C ambient, leveraging its R_θJL = 10°C/W and PCB copper as thermal path. At higher ambient temperatures or sustained loads near 2 A, thermal relief via copper pour or localized heatsink is recommended to maintain T_J ≤ 150°C. Its R_θJA = 47°C/W assumes standard JEDEC test board conditions.