Diodes Incorporated RKBP410

Overview

RKBP410 from Diodes Incorporated is a 4A, 1000V peak repetitive reverse voltage (VRRM) fast bridge rectifier in KBP_C package, featuring 1.3V max forward voltage at 4A/25°C, 5μA max reverse leakage at 1000V/25°C, and 100A non-repetitive surge rating - deployed in AC-DC power supplies for LED lighting and office equipment.

For engineers reviewing the RKBP410 datasheet, RKBP410 pinout, RKBP410 application, or RKBP410 equivalent, key selection criteria include VRRM derating for capacitive loads, thermal resistance (RθJC = 5°C/W), IFSM surge capability, and UL recognition (E95060) for safety-critical board-level rectification.

Technical Context

This single-phase, full-wave bridge rectifier integrates four fast-switching diodes in one molded plastic KBP_C package with glass-passivated junctions. It supports 60Hz resistive/inductive loads without derating but requires 20% IO reduction for capacitive loads per datasheet specification.

Its 250ns reverse recovery time (tRR) and 40pF junction capacitance (CT) enable efficient high-frequency switching in offline SMPS front-ends. Thermal performance is defined by RθJC = 5°C/W to case and RθJL = 7°C/W to lead, requiring fin-type heatsink mounting for sustained 4A operation at TC = +105°C.

Key Specifications

Pinout & Package

Package: KBP_C - Molded plastic, UL 94V-0 rated, tin-plated leads, 1.265g weight, polarity marked on body.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU4K and KBP410, RKBP410 uniquely combines UL recognition, fast tRR, and industry-standard thermal resistance - making it optimal for certified, EMI-constrained, and thermally dense AC-DC designs where regulatory compliance and noise control are co-priorities.

Availability

RKBP410 is available at Aetrix Electronics and suitable for LED lighting power supplies, office equipment AC-DC adapters, and telecom wall adapters requiring stable component supply, UL safety certification, and consistent thermal performance across production batches.

Supply support for RKBP410 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

RKBP410 belongs to Diodes' high-voltage bridge rectifier product line, engineered specifically for reliable, safety-certified AC-DC conversion in cost-sensitive, high-volume power supply applications from 5W to 100W.

FAQ

What is the maximum operating temperature for RKBP410?

RKBP410 has an operating junction temperature range of –55°C to +150°C. Its average rectified output current is rated at 4A when case temperature (TC) is held at +105°C, requiring appropriate heatsinking. At ambient temperatures above +40°C, derating per the forward current curve (Figure 1) is mandatory to avoid thermal runaway.

Is RKBP410 suitable for use in automotive applications?

RKBP410 is not AEC-Q200 qualified and lacks PPAP documentation or IATF 16949-specific change control. While its temperature range (–55°C to +150°C) meets automotive ambient requirements, Diodes explicitly states that automotive-grade variants require direct consultation - meaning RKBP410 is intended for industrial, consumer, and telecom applications only.

How does the KBP_C package affect PCB layout and thermal management?

The KBP_C package features a 4-pin inline configuration with 3.56–4.06mm lead pitch (e) and 14.25–14.75mm body length (D). Its RθJC = 5°C/W demands direct thermal coupling to a metal heatsink or copper pour with ≥6 thermal vias; the 1.265g mass and UL 94V-0 molding support reflow-compatible assembly and flame-retardant system compliance.

Does RKBP410 require external snubbers or RC networks?

RKBP410's 250ns tRR and EMI-optimized design minimize high-frequency ringing, reducing need for external snubbers in typical 50/60Hz or <100kHz SMPS applications. However, in high-dV/dt environments (e.g., motor drives with long AC lines), a 100Ω/100pF RC snubber across AC terminals may further suppress EMI per Figure 2 test conditions in DS42577.