Taiwan Semiconductor Corporation DBLS107GHC1G

Overview

DBLS107GHC1G from Taiwan Semiconductor is a 1 A, 1000 V repetitive peak reverse voltage (V_RRM) standard quad bridge rectifier in DBLS surface-mount package, featuring 40 A peak forward surge current (I_FSM), 15 °C/W junction-to-lead thermal resistance, and AEC-Q101 qualification for automotive-grade reliability - used in high-voltage AC/DC front-end stages of industrial SMPS.

For engineers reviewing the DBLS107GHC1G datasheet, DBLS107GHC1G pinout, DBLS107GHC1G application, or DBLS107GHC1G equivalent, key selection criteria include V_RRM = 1000 V, I_F = 1 A, I_FSM = 40 A, R_θJL = 15 °C/W, and AEC-Q101 qualification status - all critical for high-reliability, high-surge, surface-mount bridge rectification in constrained layouts.

Technical Context

This device 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 DBLS package supports automated SMT assembly and provides UL 94V-0 flammability rating with matte tin-plated leads compliant to J-STD-002 solderability.

Thermally, it delivers R_θJL = 15 °C/W and R_θJA = 40 °C/W, allowing sustained 1 A average forward current at ambient temperatures up to +85 °C when mounted on 1-inch² copper pad. Reverse leakage remains ≤2 µA at 25 °C and ≤100 µA at 125 °C under rated V_R.

Key Specifications

Pinout & Package

Package: DBLS - surface-mount, molded plastic case with 4 terminals (AC1, AC2, +, –), UL 94V-0 rated, 0.360 g 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 GBU10K and MB10F, DBLS107GHC1G uniquely combines AEC-Q101 qualification, 40 A surge rating, and surface-mount DBLS packaging - delivering superior manufacturability, thermal performance, and automotive suitability in a single component.

Availability

DBLS107GHC1G is available at Aetrix Electronics and suitable for industrial SMPS front-end, LED driver input stage, and automotive auxiliary supply applications requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.

Supply support for DBLS107GHC1G 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, specializing in rectifiers, TVS diodes, MOSFETs, and power ICs since 1979.

The DBLS series was developed specifically for high-reliability, surface-mount AC/DC conversion in automotive, industrial, and lighting applications - emphasizing surge robustness, thermal efficiency, and regulatory compliance in compact packages.

FAQ

What is the peak forward surge current rating for DBLS107GHC1G?

The DBLS107GHC1G has a peak forward surge current (I_FSM) rating of 40 A for an 8.3 ms single half-sine wave at 25 °C. This value is confirmed in the Absolute Maximum Ratings table for DBLS107G and applies directly to DBLS107GHC1G as the "H" suffix denotes AEC-Q101 qualification without altering surge capability. The 40 A rating enables reliable operation during high-energy inrush events in lighting and motor-control applications.

Is DBLS107GHC1G pin-compatible with other DBLS-series rectifiers like DBLS104GHC1G?

Yes, DBLS107GHC1G shares identical DBLS package dimensions, terminal layout (AC1, AC2, +, –), and solder pad footprint with all members of the DBLS101G–DBLS107G family. Voltage rating differences (50 V to 1000 V) do not affect mechanical or electrical pinout - enabling drop-in replacement across the series when board layout accommodates the same V_RRM margin requirements.

Does DBLS107GHC1G require baking before reflow soldering?

No, DBLS107GHC1G has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30 °C/60% RH and placed directly into reflow without pre-baking. This eliminates an extra manufacturing step and reduces risk of moisture-induced popcorning during assembly - a key advantage over higher-MSL discrete rectifiers.

What is the forward voltage drop of DBLS107GHC1G at rated current?

The DBLS107GHC1G exhibits a maximum forward voltage (V_F) of 1.1 V per diode at I_F = 1 A and T_J = 25 °C, as specified in the Electrical Specifications table. Since the device is a full-wave bridge, total conduction loss across both conducting diodes is ≤2.2 V at full load - critical for calculating efficiency and thermal rise in low-power AC/DC converters.

How does the AEC-Q101 qualification of DBLS107GHC1G impact its use in non-automotive applications?

The AEC-Q101 qualification of DBLS107GHC1G validates its robustness under accelerated stress conditions including temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing. While intended for automotive, this qualification also benefits industrial and medical applications requiring extended lifetime, field reliability, and resistance to thermal and electrical overstress - making DBLS107GHC1G a preferred choice where long-term stability is mission-critical.