BAT83S-TAP Equivalent & Substitute Parts

Part Overview

The BAT83S-TAP is an active Schottky diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 60V DC reverse voltage and 30mA average rectified current in a through-hole DO-35 package. This component is AEC-Q101 qualified for automotive applications and maintains ROHS3 compliance. Substitute parts are identified when equivalent electrical performance is required within specified parameter tolerances, or when the primary part becomes unavailable due to inventory constraints or end-of-life status.

Substiute Parts

BAT83S-TAP

Vishay General Semiconductor - Diodes DivisionIn Stock: 898BAT83S-TAP Datasheet

Current PartRFQ

BAT42

STMicroelectronicsIn Stock: 45306BAT42 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT83S-TAP is determined by compatibility across the following critical parameters:

Electrical Compatibility Criteria:

• Schottky diode technology classification
• DC reverse voltage rating equal to or greater than 60V
• Average rectified current capacity equal to or greater than 30mA
• Forward voltage characteristics within acceptable operating range
• Reverse leakage current specifications

Mechanical Compatibility Criteria:

• Through-hole mounting configuration
• DO-35 package form factor (DO-204AH designation)
• Axial lead orientation

Compliance & Qualification Criteria:

• Active product status
• ROHS3 compliance
• Automotive-grade qualification (AEC-Q101 preferred)

The BAT42 is identified as a manufacturer-recommended substitute based on shared Schottky technology, identical package configuration, and through-hole mounting compatibility. However, the BAT42 operates at reduced maximum reverse voltage (30V versus 60V) and increased current capacity (200mA versus 30mA), requiring circuit-level evaluation for voltage margin adequacy.

Parameter Comparison

Engineering Selection Recommendations

BAT83S-TAP Primary Selection: The BAT83S-TAP is the specified component for applications requiring 60V reverse voltage rating with automotive-grade AEC-Q101 qualification. This part maintains active product status with 791 units in stock and full ROHS3 compliance. Selection is appropriate for circuits operating at or near 60V reverse bias conditions.

BAT42 Substitute Consideration: The BAT42 is an active alternative from STMicroelectronics with identical DO-35 package configuration and through-hole mounting. This substitute is applicable only in circuits where the maximum reverse voltage requirement does not exceed 30V. The BAT42 provides higher current capacity (200mA versus 30mA) and extended operating temperature range (-65°C to 125°C versus 125°C maximum). Both parts maintain ROHS3 compliance and active product status. The BAT42 exhibits higher capacitance (7pF versus 1.6pF) and increased reverse leakage current (500nA @ 25V versus 200nA @ 60V), which may affect high-frequency circuit performance.

Compliance Status: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Moisture sensitivity level is 1 (unlimited) for both components.

Frequently Asked Questions (FAQ)

Q: Can the BAT42 directly replace the BAT83S-TAP in all applications?

A: No. The BAT42 operates at a maximum reverse voltage of 30V, compared to the BAT83S-TAP rating of 60V. Direct substitution is limited to circuits where the reverse bias voltage does not exceed 30V. Circuits designed for 60V operation require the BAT83S-TAP or an equivalent 60V-rated Schottky diode.

Q: Are the package configurations identical between BAT83S-TAP and BAT42?

A: Yes. Both components use the DO-35 package (DO-204AH designation) with axial through-hole leads. Physical mounting and PCB layout compatibility is maintained between these parts.

Q: What is the significance of the capacitance difference between these diodes?

A: The BAT83S-TAP exhibits lower capacitance (1.6pF @ 1V, 1MHz) compared to the BAT42 (7pF @ 1V, 1MHz). In high-frequency switching applications, the lower capacitance of the BAT83S-TAP results in reduced parasitic effects and faster switching response. Applications operating above 1MHz may experience performance degradation with the BAT42 substitute.

Q: Do both parts meet automotive qualification requirements?

A: The BAT83S-TAP carries AEC-Q101 automotive qualification. The BAT42 specifications provided do not indicate AEC-Q101 qualification. For automotive applications requiring formal qualification compliance, the BAT83S-TAP is the specified component.

Q: What is the impact of reverse leakage current differences?

A: The BAT83S-TAP exhibits 200nA reverse leakage at 60V, while the BAT42 exhibits 500nA at 25V. Higher reverse leakage increases power dissipation and may affect precision analog circuits. The BAT83S-TAP is preferred for low-leakage applications.

Q: Can the BAT42 be used in a 60V circuit if the actual operating voltage is lower?

A: The BAT42 is rated for maximum 30V reverse voltage. Using this component in a circuit designed for 60V operation creates risk of diode failure if voltage transients or fault conditions exceed the 30V rating, regardless of nominal operating voltage.

Q: What are the inventory implications of these substitutes?

A: The BAT83S-TAP has 791 units in stock. The BAT42 has 45,200 units in stock. If supply constraints affect BAT83S-TAP availability, the BAT42 is a viable alternative only for applications meeting the 30V maximum reverse voltage requirement.