Diodes Incorporated PBU1007

Overview

PBU1007 from Diodes Incorporated is a 10A, 1000V peak repetitive reverse voltage (VRRM) single-phase bridge rectifier in a molded plastic GBU-style through-hole package. It delivers low forward voltage drop (1.0V @ 5A per element), handles 300A non-repetitive surge current (8.3ms), and features 8.0°C/W junction-to-case thermal resistance - enabling high-efficiency AC/DC conversion in industrial power supplies and motor control circuits.

For engineers reviewing the PBU1007 datasheet, PBU1007 pinout, PBU1007 application, or PBU1007 equivalent, key selection criteria include its 1000V blocking rating, 10A average output current at TC = 100°C, RoHS-compliant lead-free finish, UL 94V-0 flammability rating, and case-to-terminal isolation voltage of 1500V.

Technical Context

The PBU1007 integrates four silicon diodes in a single-phase full-wave bridge configuration with common cathode/anode topology. Its 1000V VRRM rating supports operation across 400–600VAC input stages, while the 300A IFSM surge capability ensures robustness against line transients and inrush events in unregulated power supplies.

Thermally, it relies on heatsink mounting (R_JC = 8.0°C/W) and is rated for continuous operation from –65°C to +150°C. The device is not recommended for new designs per manufacturer notice, but remains widely deployed in legacy industrial and appliance power systems requiring high-voltage rectification.

Key Specifications

Pinout & Package

Package: GBU-4 (4-pin, single-in-line through-hole), molded plastic body with silver-plated leads. Dimensions per DS21309 Rev. 7: L = 16.8–17.8 mm, W = 4.2–4.7 mm, H = 4.8–5.8 mm, lead pitch = 19.3 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU1010, PBU1007 offers lower conduction loss and tighter VFM distribution; compared with KBPC1010, it provides simpler through-hole assembly but requires more careful thermal management on PCB.

Availability

PBU1007 is available at Aetrix Electronics and suitable for industrial power supplies, AC motor drives, appliance control boards, and LED streetlight power modules requiring stable component supply and long-term BOM continuity.

Supply support for PBU1007 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 semiconductor company specializing in discrete, analog, and mixed-signal devices, with emphasis on power management, signal integrity, and protection solutions.

The PBU series belongs to Diodes' high-current bridge rectifier product line, designed specifically for ruggedized AC/DC conversion in industrial, appliance, and lighting applications where reliability under surge and thermal stress is critical.

FAQ

What is the maximum allowable case temperature for continuous 10A operation?

The PBU1007 is rated for 10A average output current at TC = 100°C, as specified in the derating curve (Figure 1). Operation above this temperature requires proportional current reduction - e.g., 7.5A at 125°C. Heatsink mounting is mandatory; free-air operation is not supported at full rated current.

Can PBU1007 be used in capacitive-input filter configurations?

No - the datasheet explicitly states that for capacitive loads, the average output current must be derated by 20%. At 10A rated current, this limits usable current to 8A in capacitor-input designs to prevent overheating and premature failure due to high peak currents.

Is PBU1007 pin-compatible with GBU1007?

Yes - both PBU1007 and GBU1007 share identical GBU-4 mechanical outline, pin assignment (AC1, AC2, +, –), and terminal spacing (19.3 mm pitch). They are physically interchangeable on PCBs, though electrical parameters (e.g., VFM, IRM) differ slightly per respective datasheets.

Why does the datasheet state "NOT RECOMMENDED FOR NEW DESIGN"?

This notice reflects Diodes Incorporated's strategic shift toward newer platforms (e.g., GBU series) with enhanced efficiency and thermal performance. PBU1007 remains fully qualified and manufactured, but new designs are encouraged to evaluate GBU1010 or KBPC1010 for improved long-term supply and performance headroom.