BAS381-TR3 Equivalent & Substitute Parts

Part Overview

The BAS381-TR3 is a Schottky diode manufactured by Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the MicroMELF package. This component operates at a maximum reverse voltage of 40 V with an average rectified current of 30 mA, making it suitable for small-signal rectification and switching applications. The part carries automotive-grade qualification (AEC-Q101) and is ROHS3 compliant. As an active product with 5889 units in stock, the BAS381-TR3 remains available; however, alternative packaging configurations of the same base product may be required for specific supply chain, inventory, or application requirements.

Substiute Parts

BAS381-TR3

Vishay General Semiconductor - Diodes DivisionIn Stock: 5974BAS381-TR3 Datasheet

Current PartRFQ

BAS381-TR

Vishay General Semiconductor - Diodes DivisionIn Stock: 10458BAS381-TR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS381-TR3 is determined by electrical and mechanical parameter equivalence within the Schottky diode category. The critical parameters that define substitutability are:

• Reverse Voltage Rating (Vr): 40 V maximum
• Average Rectified Current (Io): 30 mA
• Forward Voltage (Vf): 1 V maximum at 15 mA
• Reverse Leakage Current: 200 nA at 40 V
• Capacitance: 1.6 pF at 1 V, 1 MHz
• Package Type: 2-SMD, No Lead (MicroMELF)
• Mounting: Surface Mount
• Automotive Grade: AEC-Q101 qualified
• Compliance: ROHS3 compliant

The BAS381-TR3 differs from its substitute only in packaging configuration (Tape & Reel designation suffix). All electrical characteristics, thermal performance, and regulatory compliance remain identical across the substitute group.

Parameter Comparison

Engineering Selection Recommendations

Both the BAS381-TR3 and BAS381-TR are active products from Vishay General Semiconductor - Diodes Division with identical electrical and mechanical specifications. Selection between these parts is based on packaging and supply availability:

BAS381-TR3: Tape & Reel packaging with 5889 units in current inventory. Suitable for standard production environments utilizing reel-based pick-and-place assembly.

BAS381-TR: Tape & Reel packaging with 10400 units in current inventory. Higher stock availability supports extended production runs or supply chain redundancy requirements.

Both parts maintain automotive-grade qualification (AEC-Q101), ROHS3 compliance, and unlimited moisture sensitivity level (MSL 1). No electrical performance differentiation exists between these variants. Selection should be based on procurement lead time, inventory requirements, and assembly process compatibility.

Frequently Asked Questions (FAQ)

Q: Are BAS381-TR3 and BAS381-TR electrically identical?

A: Yes. Both parts are Schottky diodes with identical electrical specifications: 40 V reverse voltage rating, 30 mA average rectified current, 1 V forward voltage at 15 mA, and 200 nA reverse leakage current at 40 V. All thermal, frequency, and capacitance characteristics are equivalent.

Q: What is the difference between BAS381-TR3 and BAS381-TR?

A: The parts differ only in packaging designation suffix. Both are supplied in Tape & Reel (TR) format in MicroMELF packages. The difference reflects internal Vishay product coding and does not affect physical dimensions, pin configuration, or electrical performance.

Q: Can BAS381-TR be used as a direct replacement for BAS381-TR3?

A: Yes. BAS381-TR is a direct substitute for BAS381-TR3 in all applications. No circuit modifications, PCB layout changes, or assembly process adjustments are required.

Q: Are both parts suitable for automotive applications?

A: Yes. Both BAS381-TR3 and BAS381-TR carry automotive-grade classification and AEC-Q101 qualification, meeting automotive industry reliability and quality standards.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life under standard storage conditions without special moisture control requirements.

Q: Are these parts ROHS compliant?

A: Yes. Both BAS381-TR3 and BAS381-TR are ROHS3 compliant, meeting European Union Restriction of Hazardous Substances regulations.

Q: What is the maximum junction temperature for these diodes?

A: The maximum operating junction temperature is 125°C for both parts.

Q: Can these diodes be used in high-frequency switching applications?

A: Yes. Both parts are classified as small-signal diodes with speed rating for average rectified current ≤ 200 mA, suitable for switching and high-frequency rectification applications.