Slkor GBP406 Bridge Rectifier: 600V Withstand Voltage 4.0A DIP‑4 Molded Bridge Rectifier

GBP406 is a passivated bridge rectifier device of GBP4005-GBP410 series, adopting through-hole molded package for printed circuit board assembly. The device features 600V maximum repetitive peak reverse voltage and 4.0A rated average forward rectified output current. It is UL-certified and operates over a wide temperature range. It is suitable for conventional AC rectification with resistive and inductive loads. Current derating is required for capacitive-load applications. It is a commonly used AC-DC rectification component in power supply equipment.

1. Core Product Parameters

1. Voltage parameters: maximum repetitive peak reverse voltage 600V; maximum RMS bridge input voltage 420V; maximum DC blocking voltage 600V.
2. Current parameters: maximum average forward rectified output current 4.0A under 100℃ ambient temperature with heat sink; peak forward surge current 135A with single sine-wave superimposed on rated load; fusing rating 75A²·s for time less than 8.3ms.
3. Electrical characteristics: maximum instantaneous forward voltage drop per leg is 1.1V at 4.0A; DC reverse current is 10μA at 25℃ and 1000μA at 125℃ under rated DC blocking voltage for each element.
4. Thermal parameters: typical junction-to-ambient thermal resistance per element is 10.0℃/W under PCB mounting condition; operating junction and storage temperature range from -55℃ to +150℃.
5. Physical parameters: DIP-4 molded bridge package; approximate weight 1.35g; leads meet relevant solderability standard; mounting position is unrestricted; plastic housing material meets UL94V-0 flammability class.

2. Key Product Features

1. Through-hole package for printed circuit board soldering, with built-in stand-offs for convenient PCB assembly.
2. Listed in UL Recognized Component Index under file number E142814. The housing plastic material complies with UL94V-0 flammability requirement.
3. High case dielectric strength. It supports high-temperature soldering at 260℃ for 5 seconds under 2.3kg tension.
4. Plated leads satisfy solderability requirements of relevant military standard. The device can be mounted in any orientation.
5. Processed with passivation treatment, suitable for 60Hz power-frequency rectification for resistive and inductive loads.
6. Capable of enduring short-time large surge current to resist current impulse during power-on.

3. Main Application Fields

1. AC input rectification circuits inside switching power adapters and industrial power modules.
2. AC-DC rectification circuits for small household appliance control boards and miniature industrial control power supplies.
3. General-purpose AC signal rectification and input rectification units of small-size charging devices.
4. Various common electronic equipment requiring conversion of power-frequency alternating current into direct current.

4. Engineering Design Recommendations

1. Load distinction: resistive and inductive loads can use the device per full-rate specifications. For capacitive-load scenarios, output current shall be derated by 20 percent.
2. Temperature-related derating: full-rate 4.0A operation is allowed when case temperature does not exceed 100℃. Once case temperature rises above 100℃, practical operating current shall be reduced according to derating curve to prevent excessive junction temperature.
3. Surge consideration: pay attention to power-on surge impulse in design. The device withstands single half-wave large-current impulse, while repeated surge stress will shorten service life.
4. Soldering specification: for reflow or manual soldering, keep peak temperature below 260℃ and soldering duration within 5 seconds to avoid thermal damage.
5. Heat dissipation suggestion: heat-dissipation measures shall be adopted for long-duration high-current working conditions to control case temperature and restrain sharp growth of reverse leakage current caused by temperature rise.
6. Voltage safety margin: practical peak reverse voltage in circuit shall be lower than rated repetitive peak reverse voltage of the device with sufficient safety margin reserved.

5. Product Summary

GBP406 is a through-hole molded bridge rectifier from GBP4005-GBP410 series with 600V withstand voltage and 4.0A rated output current. It obtains safety and flame-retardant certification with favorable mechanical assembly performance for power-frequency AC rectification. This device delivers stable performance with cost-effective structure for general power rectification applications. In practical engineering, attention shall be paid to temperature derating, capacitive-load current derating and soldering temperature control, as well as reasonable voltage safety margin, so as to guarantee long-term reliable operation of complete equipment.

About Slkor：

Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories.

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