Diodes Incorporated KBP2005G

Overview

KBP2005G from Diodes Incorporated is a 2.0A, 50V standard recovery bridge rectifier in KBP package, featuring 1.1V max forward voltage at 2A, 5µA max reverse leakage at 25°C, 65A non-repetitive surge rating, and UL recognition (E95060). It serves as AC-to-DC front-end rectification in offline power supplies for consumer adapters and industrial control power modules.

For engineers reviewing the KBP2005G datasheet, KBP2005G pinout, KBP2005G application, or KBP2005G equivalent, key selection criteria include VRRM=50V, IF=2.0A, VF≤1.1V@2A, IR≤5µA@25°C, and KBP package thermal resistance RθJC=14°C/W - critical for thermal design in compact PCB-mounted AC/DC converters.

Technical Context

The KBP2005G integrates four silicon junction diodes in a single-phase full-wave bridge configuration with glass-passivated die construction, enabling stable operation under repetitive 60Hz line-frequency stress and transient surge conditions up to 65A peak. Its molded plastic KBP package provides 1,500VRMS dielectric isolation between AC input terminals and DC output pins.

Designed for PCB mounting without heatsink in low-power applications, it supports average rectified current of 2.0A at TC=+105°C, with thermal resistance RθJA=40°C/W (free-air) and RθJC=14°C/W (on 75mm×75mm Cu plate), allowing predictable junction temperature estimation in fixed-layout power supplies.

Key Specifications

Pinout & Package

Package: KBP - Molded plastic, UL 94V-0 rated, 1.52g weight, tin-plated leads solderable per MIL-STD-202 Method 208. Dimensions: D=14.25–14.75mm, E=10.20–10.60mm, L=14.25–14.73mm, e=3.56–4.06mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU2K and KBL205, KBP2005G delivers certified safety compliance, superior thermal performance (RθJC=14°C/W), and guaranteed pin compatibility - making it optimal for volume production of certified AC/DC power supplies where reliability and regulatory alignment are mandatory.

Availability

KBP2005G is available at Aetrix Electronics and suitable for AC/DC wall adapters, industrial control power supplies, LED driver input stages, and appliance power modules requiring stable component supply, UL-compliant sourcing, and consistent thermal behavior across production batches.

Supply support for KBP2005G 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.

KBP2005G belongs to Diodes' standard recovery bridge rectifier product line, engineered for cost-sensitive, high-volume AC/DC front-end applications where reliability, safety certification, and thermal efficiency outweigh ultra-fast switching needs.

FAQ

What is the maximum operating temperature for KBP2005G?

The KBP2005G has an operating junction temperature range of –55°C to +150°C. Its average rectified current rating of 2.0A is specified at case temperature TC = +105°C, and derating is required above that point per Figure 1 in the datasheet. Thermal design must ensure TJ remains below 150°C under worst-case ambient and power dissipation conditions.

Is KBP2005G suitable for automotive applications?

KBP2005G is not AEC-Q200 qualified and is not intended for automotive safety-critical systems. While it meets industrial temperature and reliability standards, Diodes explicitly states that automotive-grade parts require specific change control, PPAP capability, and IATF 16949 manufacturing - none of which apply to this standard commercial-grade rectifier.

How does the KBP package differ from KBPC or GBU packages?

The KBP package is a 4-pin, single-in-line (SIP) molded plastic body with staggered leads (2 AC inputs, + and – outputs), measuring ~14.5×10.4mm. Unlike KBPC (larger, with screw-hole mounting) or GBU (rectangular, 4-pin DIP with wider lead spacing), KBP offers optimized PCB area usage and lower thermal resistance (RθJC=14°C/W) for surface-mount compatible through-hole assembly.

Can KBP2005G replace KBP201G in a 100V design?

No - KBP2005G has VRRM=50V and is rated only for ≤50V reverse blocking. Using it in a 100V application risks catastrophic breakdown during peak AC cycles. KBP201G (VRRM=100V) is the correct replacement; substituting lower-VRRM parts violates absolute maximum ratings and voids reliability guarantees.