BYT53B-TR Equivalent & Substitute Parts

Part Overview

The BYT53B-TR is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 100V DC reverse voltage and 1.9A average rectified current in a SOD-57 axial through-hole package. This component is classified as a fast recovery rectifier diode with a reverse recovery time of 50 nanoseconds, suitable for applications requiring rapid switching characteristics and avalanche protection. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1). Equivalent and substitute parts are identified to provide design flexibility when the primary part is unavailable or when alternative packaging or performance characteristics are required for specific application requirements.

Substiute Parts

BYT53B-TR

Vishay General Semiconductor - Diodes DivisionIn Stock: 1234BYT53B-TR Datasheet

Current PartRFQ

EGP20B

Fairchild SemiconductorIn Stock: 5370EGP20B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BYT53B-TR is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Voltage - DC Reverse (Vr) rating must equal or exceed 100V
• Current - Average Rectified (Io) must support minimum 1.9A operation
• Reverse Recovery Time (trr) must not exceed 50 nanoseconds to maintain fast recovery characteristics
• Current - Reverse Leakage @ Vr must not exceed 5 µA @ 100V
• Speed classification must be Fast Recovery (≤ 500ns, > 200mA)

Mechanical Compatibility Criteria:

• Mounting Type must be Through Hole
• Package must be axial configuration suitable for through-hole PCB assembly

Compliance Criteria:

• Product Status must be Active
• RoHS compliance status must be maintained

The EGP20B from Fairchild Semiconductor satisfies all electrical and mechanical substitution criteria, with the exception of package designation (DO-15 versus SOD-57). Both packages are axial through-hole configurations with compatible physical dimensions for standard PCB footprints.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: BYT53B-TR

The BYT53B-TR remains the specified component when SOD-57 package geometry is required and operating temperatures approach or exceed 150°C. This part is RoHS3 compliant, REACH unaffected, and maintains unlimited moisture sensitivity level (MSL 1), making it suitable for standard manufacturing environments without special handling requirements.

Substitute Part: EGP20B

The EGP20B is electrically and mechanically compatible for applications where the DO-15 package footprint is acceptable. The substitute part provides equivalent reverse voltage and reverse recovery time specifications, with superior current rating (2A versus 1.9A) and lower forward voltage drop (950 mV @ 2A versus 1.1 V @ 1A). The operating temperature range of the EGP20B (-65 to 150°C) is suitable for applications operating below 150°C junction temperature. Both parts maintain Active product status and equivalent compliance certifications (ECCN EAR99, HTSUS 8541.10.0080).

Selection between these parts depends on PCB footprint constraints and thermal operating requirements. The EGP20B offers improved electrical performance characteristics within its specified temperature range.

Frequently Asked Questions (FAQ)

Q: Can the EGP20B directly replace the BYT53B-TR on existing PCBs?

A: Physical replacement depends on PCB footprint design. Both parts are axial through-hole diodes, but the SOD-57 and DO-15 packages have different physical dimensions. If the PCB is designed for SOD-57 spacing, the DO-15 package may not fit without PCB modification. Verify footprint compatibility before substitution.

Q: What are the key electrical differences between these parts?

A: Both parts share identical reverse voltage (100V), reverse recovery time (50ns), and reverse leakage current (5µA @ 100V) specifications. The EGP20B provides higher current capacity (2A versus 1.9A) and lower forward voltage drop (950mV @ 2A versus 1.1V @ 1A), resulting in reduced power dissipation in the substitute part.

Q: Are there temperature operating range limitations when using the EGP20B?

A: The EGP20B maximum junction temperature is 150°C, compared to 175°C for the BYT53B-TR. Applications requiring sustained operation above 150°C junction temperature must use the primary BYT53B-TR part. The EGP20B minimum temperature (-65°C) exceeds the BYT53B-TR minimum (-55°C), providing extended low-temperature operation capability.

Q: Do both parts meet the same compliance and regulatory requirements?

A: Both parts share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications. The BYT53B-TR is RoHS3 compliant with REACH unaffected status. Compliance documentation for the EGP20B should be verified with the supplier to confirm equivalent regulatory status for your specific application.

Q: What is the difference between SOD-57 and DO-15 packages?

A: SOD-57 and DO-15 are both axial through-hole diode packages with different physical dimensions and lead spacing. SOD-57 is a smaller package, while DO-15 (DO-204AC) is a larger standard package. Package selection affects PCB layout, component density, and thermal dissipation characteristics. Consult package datasheets for precise dimensional specifications.

Q: Can I use the EGP20B in high-frequency switching applications?

A: Both parts are classified as fast recovery diodes with 50ns reverse recovery time, suitable for high-frequency switching applications. The EGP20B's lower forward voltage drop may provide improved efficiency in switching circuits. Verify that the DO-15 package thermal characteristics are adequate for your specific frequency and current conditions.