Vishay General Semiconductor - Diodes Division B80C800G-E4/51

Overview

B80C800G-E4/51 from Vishay Semiconductors is a glass passivated single-phase bridge rectifier in WOG package, rated for 125 V repetitive peak reverse voltage (V_RRM), 0.9 A average forward output current (I_F(AV)), and 45 A non-repetitive peak surge current (I_FSM). It delivers low forward voltage drop (1.0 V at 0.9 A) and ultra-low reverse leakage (10 µA), enabling efficient AC/DC conversion in compact power supplies for consumer adapters and lighting ballasts.

For engineers reviewing the B80C800G-E4/51 datasheet, B80C800G-E4/51 pinout, B80C800G-E4/51 application, or B80C800G-E4/51 equivalent, key selection criteria include its 125 V V_RRM, WOG surface-mount-compatible case, 1.0 V V_F at rated current, 10 µA I_R, and thermal resistance of 36 °C/W (junction-to-ambient).

Technical Context

The B80C800G-E4/51 integrates four silicon diodes in a single-phase full-wave bridge configuration with silver-plated leads solderable per J-STD-002 and JESD22-B102. Its WOG package features UL 94 V-0 molding compound and supports PCB mounting with 0.22" × 0.22" (5.5 mm × 5.5 mm) copper pads.

Designed for R-, L-, and C-load conditions, it operates across -40 °C to +125 °C junction temperature range and sustains 10 A repetitive forward surge current (I_FRM) and 10 A²s fusing I²t rating at t < 100 ms. Polarity is marked on the body, and case dielectric strength meets high isolation requirements for safety-critical AC/DC interfaces.

Key Specifications

Pinout & Package

Package: WOG - Surface-mountable, glass-passivated, UL 94 V-0 compliant molded case with silver-plated leads. Dimensions: 0.348" × 0.220" × 0.160" (8.84 mm × 5.6 mm × 4.1 mm). Polarity marked on body: (+) and (−) terminals labeled; AC input terminals marked as (~).

Key Features

Applications

Equivalent & Alternatives

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

Compared with B80C800G-E4/51, GBU4K-E4/51 offers higher reverse voltage but requires PCB layout revision due to larger GBU package, while DB107S provides extreme voltage rating at the expense of thermal performance and package compatibility-neither is pin-compatible, and both demand mechanical and thermal revalidation.

Availability

B80C800G-E4/51 is available at Aetrix Electronics and suitable for AC/DC adapters, LED lighting ballasts, and home appliance power supplies requiring stable component supply, RoHS-compliant sourcing, and consistent parametric performance across production batches.

Supply support for B80C800G-E4/51 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

Vishay Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with emphasis on reliability, precision, and power efficiency.

The B80C800G-E4/51 belongs to Vishay's WOG-series glass-passivated bridge rectifiers, engineered for high-surge, low-loss AC/DC conversion in cost-sensitive consumer and industrial power supplies.

FAQ

What is the maximum ambient temperature at which B80C800G-E4/51 can operate continuously at 0.9 A?

The B80C800G-E4/51 is rated for 0.9 A average forward current at T_A = 45 °C with R- or L-load. At higher ambient temperatures, derating is required per Figure 1 in the datasheet. With standard PCB copper pads (5.5 mm × 5.5 mm), continuous operation at full 0.9 A is limited to 45 °C ambient; above that, current must be reduced to maintain T_J ≤ 125 °C. The B80C800G-E4/51 datasheet provides exact derating curves for resistive, inductive, and capacitive loads.

Is B80C800G-E4/51 RoHS-compliant and lead-free?

Yes, the "-E4" suffix in B80C800G-E4/51 indicates Vishay's RoHS-compliant, commercial-grade variant with lead-free terminations and halogen-free molding compound. It meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements and is qualified for standard reflow profiles. The B80C800G-E4/51 conforms to EU RoHS Directive 2011/65/EU and related regional environmental regulations.

What is the thermal resistance from junction to lead (R_θJL) for B80C800G-E4/51?

The B80C800G-E4/51 has a typical junction-to-lead thermal resistance (R_θJL) of 11 °C/W, measured under standard test conditions with 0.375" (9.5 mm) lead lengths. This value enables direct thermal coupling to heatsinks or copper planes via the leads and supports accurate thermal modeling when the device is mounted with extended lead bends or chassis connections. R_θJL is significantly lower than R_θJA (36 °C/W), confirming the importance of proper lead thermal path design in high-power-density layouts.

Can B80C800G-E4/51 be used in capacitive-input filter configurations?

Yes, the B80C800G-E4/51 supports capacitive-input (C-load) configurations with a maximum load capacitance of 2500 µF at VRMS = 80 V (±10 %), as specified in the "Maximum load capacitance" table. For safe operation, a minimum series resistor (R_T) of 2.0 Ω is required to limit inrush current. The B80C800G-E4/51's 45 A I_FSM rating accommodates typical C-load surge demands when this resistor is correctly sized per application requirements.

What does the "/51" suffix mean in B80C800G-E4/51?

The "/51" suffix in B80C800G-E4/51 denotes the preferred packaging code per Vishay's ordering system: it specifies a 100-unit quantity delivered in plastic bag packaging. This is distinct from tape-and-reel (e.g., /TR) or bulk (e.g., /BL) options. The B80C800G-E4/51 part number uniquely identifies the RoHS-compliant WOG-packaged 125 V bridge rectifier in this specific packaging format, ensuring traceability and fulfillment accuracy for production orders.