Taiwan Semiconductor Corporation DBLS152G

Overview

DBLS152G from Taiwan Semiconductor is a 1.5A, 100V repetitive peak reverse voltage (VRRM) standard quad bridge rectifier in DBLS package, featuring 50A peak surge current (IFSM), 1.10V forward voltage at 1.5A/25°C, and AEC-Q101 qualification option. It serves as AC-to-DC conversion core in compact off-line power supplies.

For engineers reviewing the DBLS152G datasheet, DBLS152G pinout, DBLS152G application, or DBLS152G equivalent, key selection criteria include VRRM rating, thermal resistance (RθJL = 15°C/W), moisture sensitivity level (MSL 1), UL recognition (E-326854), and RoHS/halogen-free compliance.

Technical Context

This device integrates four diodes in a single-phase full-wave bridge configuration with common-cathode and common-anode terminals. Its molded DBLS package enables surface-mount assembly and supports JEDEC-standard soldering per J-STD-002.

Thermal performance is defined by junction-to-lead resistance of 15°C/W and junction-to-ambient resistance of 40°C/W. The device operates across -55°C to +150°C junction temperature range and withstands 8.3ms half-sine surge currents up to 50A.

Key Specifications

Pinout & Package

Package: DBLS - Surface-mount, molded plastic quad bridge rectifier with matte tin-plated leads, 0.360g mass, and polarity marking per device top-side label.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU4K and MB10F, DBLS152G offers superior thermal performance (RθJL = 15°C/W), AEC-Q101 qualification path, and optimized profile for space-constrained designs-making it preferred for next-generation compact and automotive-grade power supplies.

Availability

DBLS152G is available at Aetrix Electronics and suitable for switching mode power supplies, USB wall adapters, and LED lighting drivers requiring stable component supply and consistent tape-and-reel delivery.

Supply support for DBLS152G 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, automotive, and industrial markets since 1979.

The DBLS series was developed specifically for high-reliability, surface-mount AC-DC front-end rectification in compact power converters-emphasizing thermal efficiency, regulatory compliance, and manufacturability in automated SMT lines.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) rating for DBLS152G?

The DBLS152G has a VRRM rating of 100 V, meaning it can reliably block up to 100 volts of reverse voltage in repetitive operation. This value is confirmed in the Absolute Maximum Ratings table on page 1 of the Taiwan Semiconductor DBLS151G–DBLS159G datasheet (Version M2103). Exceeding this voltage risks avalanche breakdown and permanent damage to the DBLS152G.

Is DBLS152G suitable for automotive applications?

Yes - the DBLS152G has an AEC-Q101 qualified variant (marked DBLS152GH), which undergoes stress testing for temperature cycling, humidity, and mechanical shock per automotive reliability standards. While the base DBLS152G is not AEC-Q101 certified, the GH suffix version is explicitly validated for under-hood and infotainment power supply use. Always verify the part marking and ordering code when selecting for automotive systems.

What is the forward voltage (VF) of DBLS152G at its rated current?

The DBLS152G exhibits a typical forward voltage of 1.10 V per diode at IF = 1.5 A and TJ = 25°C, as specified in the Electrical Specifications table (page 2, Version M2103). This value increases with junction temperature and current; at 125°C, VF rises approximately 10–15%, directly affecting conduction losses and thermal design of the DBLS152G in continuous operation.

Does DBLS152G require special handling during PCB assembly?

No - DBLS152G is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and does not require dry packing, baking, or special moisture control before reflow soldering. Its matte tin-plated leads comply with J-STD-002 for solderability, and the DBLS152G is compatible with standard lead-free reflow profiles used for RoHS-compliant assemblies.

How does the thermal resistance of DBLS152G impact PCB layout?

The DBLS152G has a junction-to-lead thermal resistance (RθJL) of 15°C/W, indicating that heat flows efficiently from die to PCB copper via the leads. To maximize this benefit, designers must provide ≥25 mm² of 2-oz copper connected to each lead (especially +DC and -DC), as insufficient copper area raises effective RθJA and risks exceeding TJ max = 150°C under full load. The DBLS152G's low RθJL enables compact thermal design without external heatsinks in most <15W applications.