Vishay General Semiconductor - Diodes Division BY500-100-E3/73

Overview

BY500-100-E3/73 from Vishay General Semiconductor is a soft recovery fast switching plastic rectifier diode rated for 5.0 A average forward current, 100 V repetitive peak reverse voltage, and 200 ns reverse recovery time-designed for medium-frequency rectification in SMPS, inverters, and freewheeling circuits.

For engineers reviewing the BY500-100-E3/73 datasheet, BY500-100-E3/73 pinout, BY500-100-E3/73 application, or BY500-100-E3/73 equivalent, key selection criteria include its DO-201AD package, 1.35 V forward voltage at 5.0 A, 10 μA reverse leakage at 25 °C, and suitability for low-RF-interference power conversion stages.

Technical Context

This single-die silicon rectifier employs soft recovery characteristics to minimize voltage overshoot and EMI during turn-off, enabling cleaner switching in high-frequency power converters. Its 200 ns trr and 2.0 A reverse recovery current (IRM) are measured under standardized conditions (IF = 1.0 A, VR = 30 V, dI/dt = 50 A/μs).

The device operates across –50 °C to +125 °C junction temperature range with a thermal resistance of 22 °C/W (junction-to-ambient, PCB-mounted on 0.2" × 0.2" copper pad), and features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.

Key Specifications

Pinout & Package

Package: DO-201AD molded epoxy case with UL 94 V-0 flammability rating; color band denotes cathode terminal; RoHS-compliant matte tin-plated leads.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH5L06 and ES5J, the BY500-100-E3/73 offers optimized cost-performance balance for 100 V-class medium-frequency rectification in through-hole designs, with proven soft recovery behavior ideal for EMI-sensitive environments where ultra-fast recovery is unnecessary.

Availability

BY500-100-E3/73 is available at Aetrix Electronics and suitable for switching mode power supplies, motor drive freewheeling circuits, and ultrasonic generator rectification requiring stable component supply and long-term industrial availability.

Supply support for BY500-100-E3/73 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 General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and manufacturability.

The BY500 series belongs to Vishay's soft recovery fast rectifier product line, engineered specifically for medium-frequency power conversion where low EMI, robust surge handling, and thermal stability outweigh the need for ultra-fast switching.

FAQ

What is the maximum junction temperature rating for BY500-100-E3/73?

The BY500-100-E3/73 has a specified operating junction temperature range of –50 °C to +125 °C. This rating ensures reliable operation in industrial and consumer power supplies where ambient temperatures may exceed 85 °C. Derating curves in the Vishay datasheet (Document Number 88544) define safe current limits at elevated temperatures. Thermal design must account for the 22 °C/W junction-to-ambient resistance under standard PCB mounting conditions.

Is BY500-100-E3/73 RoHS-compliant and lead-free?

Yes, the BY500-100-E3/73 is RoHS-compliant and lead-free. The "E3" suffix explicitly indicates compliance with Directive 2011/65/EU, and the device uses matte tin-plated leads meeting JESD 201 Class 1A whisker test requirements. Vishay confirms full conformance to JEDEC JS709A halogen-free standards. No exemptions apply, and the material categorization is documented per Vishay's policy at www.vishay.com/doc?99912.

What does the "/73" suffix mean in BY500-100-E3/73?

The "/73" suffix in BY500-100-E3/73 specifies the packaging configuration: ammo pack packaging with a base quantity of 1000 units. This differs from "/54", which denotes 1400 units on 13" diameter paper tape and reel. Both share identical electrical and thermal specifications; the suffix solely identifies logistics format and is critical for order fulfillment and automated assembly planning.

How does the soft recovery characteristic of BY500-100-E3/73 benefit EMI performance?

The soft recovery behavior of BY500-100-E3/73 results in controlled, gradual carrier recombination during turn-off, reducing di/dt-induced voltage spikes and high-frequency ringing. Measured trr of 200 ns with low IRM(REC) (2.0 A) minimizes excitation of parasitic LC networks in SMPS layouts. This directly lowers conducted and radiated EMI, often eliminating the need for external snubbers in cost-sensitive 50–200 kHz power supplies.

Can BY500-100-E3/73 be used as a direct replacement for BY500-100-E3/54?

Yes, BY500-100-E3/73 and BY500-100-E3/54 are electrically and thermally identical; only the packaging differs (ammo pack vs. tape-and-reel). No circuit or layout changes are needed when substituting between them. Both meet the same DO-201AD mechanical outline, solderability standards (J-STD-002), and reliability specifications. Selection depends solely on assembly method-manual/hand-soldering favors /73; pick-and-place automation typically requires /54.