B0540WS-TP Schottky Diode Equivalent & Substitute Parts

Part Overview

The B0540WS-TP is an active Schottky rectifier diode manufactured by Micro Commercial Co, designed for surface mount applications in the SOD-323 package. This component operates at 40V DC reverse voltage with 500mA average rectified current capacity and is classified as a fast recovery diode with switching characteristics suitable for high-frequency rectification circuits. The part is ROHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1), making it suitable for standard manufacturing environments without special handling requirements. Equivalent and substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining electrical and mechanical compatibility.

Substiute Parts

B0540WS-TP

Micro Commercial CoIn Stock: 3300B0540WS-TP Datasheet

Current PartRFQ

B0540WSHE3-TP

Micro Commercial CoIn Stock: 7908B0540WSHE3-TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the B0540WS-TP is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io): 500 mA
• Voltage - Forward (Vf) (Max) @ If: 550 mV @ 500 mA
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 80 µA @ 40 V
• Capacitance @ Vr, F: 30 pF @ 4V, 1MHz

Mechanical Parameters (Must Match):

• Package / Case: SC-76, SOD-323
• Mounting Type: Surface Mount
• Supplier Device Package: SOD-323

Environmental & Compliance Parameters:

• Operating Temperature - Junction: -55°C to 125°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The substitute part B0540WSHE3-TP meets all electrical, mechanical, and environmental specifications of the main part. The addition of automotive-grade qualification (AEC-Q101) in the substitute part represents an enhanced specification level that does not compromise compatibility; automotive-qualified components are fully compatible with standard industrial applications.

Parameter Comparison

Engineering Selection Recommendations

B0540WS-TP (Standard Grade)

The B0540WS-TP is an active product suitable for general industrial and commercial applications. This part is ROHS3 compliant and carries no moisture sensitivity restrictions. Selection of this part is appropriate for applications where standard industrial-grade specifications are sufficient and cost optimization is a primary consideration.

B0540WSHE3-TP (Automotive Grade, AEC-Q101 Qualified)

The B0540WSHE3-TP is an active product with automotive-grade qualification per AEC-Q101 standard. This part maintains identical electrical and mechanical specifications to the B0540WS-TP while meeting enhanced reliability and quality requirements. The automotive qualification provides additional process controls and reliability assurance. Selection of this part is appropriate for applications requiring automotive-grade components, mission-critical systems, or where enhanced quality documentation is required. This part is fully compatible with all applications designed for the B0540WS-TP.

Compliance & Regulatory Status

Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0070. Both parts carry MSL 1 (unlimited) moisture sensitivity rating, eliminating special storage or handling requirements.

Frequently Asked Questions (FAQ)

Q: Can B0540WSHE3-TP be used as a direct replacement for B0540WS-TP?

A: Yes. The B0540WSHE3-TP is a direct parametric equivalent with identical electrical characteristics (40V reverse voltage, 500mA average rectified current, 550mV forward voltage drop, fast recovery speed, and identical capacitance). Both parts use the SOD-323 surface mount package. The automotive-grade qualification of the B0540WSHE3-TP represents an enhanced specification level that does not restrict its use in standard industrial applications.

Q: What is the difference between B0540WS-TP and B0540WSHE3-TP?

A: The primary difference is qualification level. The B0540WSHE3-TP carries automotive-grade qualification per AEC-Q101 standard, while the B0540WS-TP is standard industrial grade. All electrical parameters, mechanical specifications, and environmental ratings are identical. The automotive qualification indicates enhanced manufacturing process controls and reliability documentation.

Q: Are these parts pin-compatible?

A: Yes. Both parts use the SC-76 SOD-323 package with identical pin configuration and footprint. No PCB layout modifications are required for substitution.

Q: What is the operating temperature range for both parts?

A: Both B0540WS-TP and B0540WSHE3-TP operate across a junction temperature range of -55°C to 125°C, suitable for industrial and automotive temperature environments.

Q: Do these parts require special moisture handling?

A: No. Both parts carry MSL 1 (unlimited) moisture sensitivity level, indicating no special moisture control or baking requirements during storage or assembly.

Q: What is the reverse leakage current specification?

A: Both parts specify 80 µA maximum reverse leakage current at 40V reverse bias, a critical parameter for low-power rectification and blocking applications.

Q: Are both parts RoHS compliant?

A: Yes. Both B0540WS-TP and B0540WSHE3-TP are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.

Q: What is the forward voltage drop at rated current?

A: Both parts specify a maximum forward voltage drop of 550 mV at 500 mA forward current, a key parameter for power dissipation calculations in rectification circuits.

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

A: Yes. Both parts are classified as fast recovery Schottky diodes with recovery time ≤ 500ns for currents > 200mA, making them suitable for high-frequency rectification and switching applications up to several megahertz.

Q: What is the junction capacitance specification?

A: Both parts specify 30 pF capacitance measured at 4V reverse bias and 1 MHz frequency, a parameter relevant for high-frequency circuit design and parasitic effect calculations.