BYT54J-TAP Equivalent & Substitute Parts

Part Overview

The BYT54J-TAP is an avalanche diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 600V DC reverse voltage with 1.25A average rectified current. This through-hole component in SOD-57 axial package is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance parameters are met within the same voltage and current class, enabling circuit designers to source alternative components when primary inventory is unavailable or when application requirements permit higher current ratings.

Substiute Parts

BYT54J-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 5194BYT54J-TAP Datasheet

Current PartRFQ

STTH2L06

STMicroelectronicsIn Stock: 2460STTH2L06 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BYT54J-TAP are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 600V
• Current - Average Rectified (Io): Equal to or greater than 1.25A
• Mounting Type: Through Hole
• Speed Classification: Fast Recovery (≤500ns, >200mA)
• Compliance: RoHS3 Compliant, REACH Unaffected

Secondary Compatibility Factors:

• Reverse Recovery Time (trr): Lower or equal values acceptable
• Reverse Leakage Current: Lower values acceptable
• Operating Temperature Range: Minimum -55°C to maximum 175°C or higher
• Package Configuration: Axial through-hole packages (SOD-57, DO-41, DO-204AL)

The STTH2L06 qualifies as a substitute because it meets or exceeds all primary criteria: 600V reverse voltage rating, 2A average rectified current (exceeds 1.25A requirement), through-hole mounting, fast recovery speed classification, and full RoHS3 compliance. Package differences (DO-41 versus SOD-57) are mechanically compatible for through-hole PCB applications.

Parameter Comparison

Engineering Selection Recommendations

BYT54J-TAP Selection Criteria:

• Primary choice when SOD-57 package footprint is required
• Avalanche technology specification is mandatory for application
• Inventory availability: 5100 pieces in stock
• Active product status with ongoing manufacturer support

STTH2L06 Selection Criteria:

• Suitable when DO-41 package footprint accommodates PCB layout
• Standard diode technology acceptable for application requirements
• Higher current rating (2A) provides design margin above 1.25A minimum
• Lower reverse recovery time (85ns versus 100ns) beneficial for high-frequency switching applications
• Inventory availability: 2400 pieces in stock
• Active product status with ongoing manufacturer support

Both parts maintain identical voltage ratings, fast recovery speed classification, maximum junction temperature, and full regulatory compliance (RoHS3, REACH Unaffected, EAR99 ECCN classification). Selection between these parts depends on package footprint compatibility and technology requirements specific to the application circuit.

Frequently Asked Questions (FAQ)

Q: Can STTH2L06 directly replace BYT54J-TAP in all applications?

A: Electrical substitution is valid when the application circuit accommodates the DO-41 package footprint in place of SOD-57. Both parts share identical 600V reverse voltage rating, fast recovery speed classification, and maximum junction temperature. The STTH2L06 provides higher current capacity (2A versus 1.25A), which is acceptable for applications designed for 1.25A operation.

Q: What is the primary difference between these two diodes?

A: The main differences are package configuration (SOD-57 axial versus DO-41 axial), diode technology (avalanche versus standard), and current rating (1.25A versus 2A). Electrical performance at the 1.25A operating point is equivalent, with STTH2L06 demonstrating lower reverse recovery time (85ns versus 100ns) and lower reverse leakage current (2µA versus 5µA).

Q: Are both parts RoHS3 compliant?

A: Yes. Both BYT54J-TAP and STTH2L06 are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: What is the significance of reverse recovery time in this comparison?

A: Reverse recovery time (trr) indicates the speed at which the diode transitions from forward conduction to reverse blocking. STTH2L06 exhibits 85ns recovery time compared to BYT54J-TAP at 100ns. Both fall within the fast recovery classification (≤500ns, >200mA), making them suitable for identical switching frequency applications.

Q: Can I use STTH2L06 in a circuit designed for 1.25A operation?

A: Yes. The STTH2L06 is rated for 2A average rectified current, which exceeds the 1.25A design requirement. Operating the part below its maximum current rating is standard engineering practice and does not compromise reliability or performance.

Q: What packaging considerations apply to substitution?

A: Both parts are through-hole axial packages suitable for PCB mounting. SOD-57 and DO-41 packages have different physical dimensions and lead spacing. PCB layout must accommodate the substitute package footprint. Mechanical compatibility with existing PCB holes and component spacing must be verified during design review.

Q: Are there inventory or lead time advantages to either part?

A: BYT54J-TAP has 5100 pieces in stock, while STTH2L06 has 2400 pieces available. Inventory levels may vary based on current demand and supply chain conditions. Both parts maintain active product status with manufacturer support.