BYV98-50-TAP Equivalent & Substitute Parts

Part Overview

The BYV98-50-TAP is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 50 V DC reverse voltage and 4 A average rectified current. This component is designed for through-hole mounting in SOD-64 axial package configuration and is classified as an active product with full RoHS3 compliance.

Substitute parts become necessary when the BYV98-50-TAP reaches end-of-life status, inventory depletion occurs, or when design requirements permit alternative package configurations while maintaining electrical performance specifications. The MUR405G represents a functionally equivalent alternative that meets the core electrical parameters of the original part.

Substiute Parts

BYV98-50-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 892BYV98-50-TAP Datasheet

Current PartRFQ

MUR405G

onsemiIn Stock: 3304MUR405G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BYV98-50-TAP is determined by the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 50 V minimum
• Current - Average Rectified (Io): 4 A minimum
• Reverse Recovery Time (trr): 35 ns or faster
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Mounting Type: Through Hole
• Package / Case: Axial configuration

Compliance Requirements:

• RoHS3 Compliant status
• REACH Unaffected status
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The MUR405G meets all primary electrical substitution criteria and maintains full compliance with RoHS3 and REACH requirements. While the MUR405G is classified as obsolete, it remains functionally equivalent to the BYV98-50-TAP for applications requiring 50 V, 4 A fast recovery diodes in through-hole axial packages.

Parameter Comparison

Engineering Selection Recommendations

BYV98-50-TAP Selection: The BYV98-50-TAP is the preferred component for new designs and applications requiring long-term supply continuity. This part maintains active product status with full manufacturer support and availability. The component is RoHS3 compliant and carries unlimited moisture sensitivity rating, suitable for standard manufacturing and storage conditions.

MUR405G Selection: The MUR405G is suitable for replacement applications, legacy system repairs, and situations where inventory of the original part is unavailable. Although classified as obsolete, this part meets all core electrical specifications and maintains RoHS3 compliance. The MUR405G demonstrates superior performance characteristics in forward voltage drop (0.89 V versus 1.1 V) and reverse leakage current (5 µA versus 10 µA), with extended low-temperature operating range (-65°C versus -55°C).

Package Compatibility Consideration: Both parts utilize through-hole axial mounting. The BYV98-50-TAP uses SOD-64 package, while the MUR405G uses DO-201AA or DO-27 package. Physical dimensions and lead spacing differ between these packages; PCB layout verification is required prior to substitution.

Frequently Asked Questions (FAQ)

Q: Can the MUR405G directly replace the BYV98-50-TAP without circuit modification?

A: The MUR405G meets all electrical specifications for 50 V, 4 A fast recovery diode applications. However, package differences (SOD-64 versus DO-201AA/DO-27) require PCB layout verification. Lead spacing and physical dimensions differ between packages, necessitating confirmation that the substitute part fits the existing PCB footprint or that layout modification is acceptable.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: (1) Voltage - DC Reverse (Vr) rating of 50 V minimum, (2) Current - Average Rectified (Io) rating of 4 A minimum, (3) Reverse Recovery Time (trr) of 35 ns or faster, (4) Fast Recovery speed classification, (5) Through-hole mounting type, and (6) Axial package configuration. Both parts meet these criteria.

Q: Does the MUR405G's lower forward voltage drop affect circuit performance?

A: The MUR405G exhibits 0.89 V forward voltage drop at 4 A compared to 1.1 V for the BYV98-50-TAP. This represents improved efficiency and reduced power dissipation. For applications where forward voltage drop is a critical design parameter, circuit analysis is required to confirm that the lower voltage drop does not introduce unintended operational changes.

Q: Are there compliance or certification differences between these parts?

A: Both parts are RoHS3 compliant, REACH unaffected, and carry unlimited moisture sensitivity rating (MSL 1). No compliance or certification barriers exist for substitution from a regulatory standpoint.

Q: Why is the MUR405G classified as obsolete if it meets all specifications?

A: Product status reflects manufacturer production and support status, not functional capability. The MUR405G remains electrically and mechanically suitable for applications requiring 50 V, 4 A fast recovery diodes. Obsolete status indicates that the manufacturer has discontinued active production and support; however, existing inventory may remain available through authorized distributors.

Q: What is the temperature operating range difference between these parts?

A: The BYV98-50-TAP operates from -55°C to 175°C junction temperature, while the MUR405G operates from -65°C to 175°C. The MUR405G provides extended low-temperature capability. For applications operating below -55°C, the MUR405G offers superior performance; for standard industrial temperature ranges, both parts are equivalent.