BAV21,143 Equivalent & Substitute Parts

Part Overview

The BAV21,143 is a general-purpose rectifier diode manufactured by Nexperia USA Inc., classified within the Diodes, Rectifiers category. This through-hole component operates at 200 V DC reverse voltage with a 250 mA average rectified current rating. The device is actively produced and maintains ROHS3 compliance with unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across packaging and performance parameters.

Substiute Parts

BAV21,143

Nexperia USA Inc.In Stock: 5786BAV21,143 Datasheet

Current PartRFQ

BAV21,133

Nexperia USA Inc.In Stock: 11765BAV21,133 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAV21,143 is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 250 mA
• Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 200 mA
• Reverse Recovery Time (trr): 50 ns
• Current - Reverse Leakage @ Vr: 100 nA @ 200 V
• Capacitance @ Vr, F: 5 pF @ 0V, 1MHz
• Operating Temperature - Junction (Max): 175°C

Mechanical Specifications:

• Mounting Type: Through Hole
• Package / Case: DO-204AH, DO-35, Axial
• Supplier Device Package: ALF2

Compliance & Status:

• Product Status: Active
• Technology: Standard
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts must match all electrical parameters, maintain identical through-hole mounting configuration, and preserve the DO-204AH/DO-35 axial package specification. Compliance certifications must remain unchanged.

Parameter Comparison

Engineering Selection Recommendations

The BAV21,133 is a direct parametric equivalent to the BAV21,143. Both components are manufactured by Nexperia USA Inc. and share identical electrical specifications, mechanical configuration, and compliance certifications. Selection between these parts is based on availability and inventory status rather than technical performance differentiation.

Both parts maintain Active product status and ROHS3 compliance, ensuring regulatory conformance in current manufacturing environments. The unlimited moisture sensitivity rating (MSL 1) on both components eliminates moisture-related handling constraints during assembly and storage.

The through-hole mounting configuration and DO-204AH/DO-35 axial package specification are preserved across both parts, ensuring direct compatibility with existing printed circuit board layouts and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can BAV21,133 be used as a direct replacement for BAV21,143?

A: Yes. The BAV21,133 is a parametric equivalent with identical electrical specifications, reverse voltage rating (200 V), average rectified current (250 mA), forward voltage drop (1.25 V @ 200 mA), reverse recovery time (50 ns), and operating temperature range (175°C max). Both components use the same DO-204AH/DO-35 axial through-hole package.

Q: Are there any differences in compliance or regulatory status between these parts?

A: No. Both BAV21,143 and BAV21,133 maintain identical compliance certifications: ROHS3 Compliant, REACH Unaffected, and MSL 1 (Unlimited). Regulatory and environmental requirements are equivalent.

Q: What is the significance of the ALF2 supplier device package designation?

A: ALF2 is the Nexperia supplier-specific package designation for the DO-204AH/DO-35 axial through-hole configuration. Both substitute parts use this identical package specification, ensuring mechanical and electrical compatibility with existing designs.

Q: Are the reverse recovery time specifications identical?

A: Yes. Both parts specify a reverse recovery time (trr) of 50 ns, confirming identical fast recovery diode performance characteristics. This parameter is critical for switching applications and power supply circuits.

Q: What is the reverse leakage current specification for these diodes?

A: Both parts specify a reverse leakage current of 100 nA at the maximum reverse voltage rating of 200 V. This parameter remains constant across both equivalent parts.

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

A: Yes. Both parts are classified as fast recovery diodes with identical speed characteristics (≤ 500 ns recovery time at currents > 200 mA). The 50 ns reverse recovery time specification supports high-frequency switching requirements.

Q: Is there any difference in junction capacitance between these parts?

A: No. Both BAV21,143 and BAV21,133 specify identical junction capacitance of 5 pF at 0 V and 1 MHz measurement frequency. This parameter is equivalent across both components.