BAV99_L99Z Equivalent & Substitute Parts

Part Overview

The BAV99_L99Z is a general-purpose diode array manufactured by onsemi, configured as 1 pair series connection in a surface mount SOT-23-3 package. This component is rated for 70 V DC reverse voltage with 200 mA average rectified current per diode. The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement requirements.

Substiute Parts

BAV99_L99Z

onsemiIn Stock: 772BAV99_L99Z Datasheet

Current PartRFQ

BAV99-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 107146BAV99-E3-08 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAV99_L99Z is determined by the following critical parameters:

1. Diode Configuration: Must be 1 pair series connection
2. Voltage Rating: DC reverse voltage must be 70 V or greater
3. Current Rating: Average rectified current must support the application requirement
4. Package Type: Must be SOT-23-3 (TO-236-3, SC-59) for mechanical and thermal compatibility
5. Forward Voltage Characteristics: Must maintain compatibility at specified test conditions
6. Operating Temperature Range: Must encompass -55°C to 150°C junction temperature range

The BAV99-E3-08 from Vishay General Semiconductor - Diodes Division meets these substitution criteria. Both parts share identical voltage ratings (70 V), matching package specifications (SOT-23-3), equivalent forward voltage characteristics (1.25 V @ 150 mA), and identical operating temperature ranges (-55°C ~ 150°C).

Parameter Comparison

Engineering Selection Recommendations

The BAV99-E3-08 serves as a direct substitute for the obsolete BAV99_L99Z based on the following engineering criteria:

Electrical Compatibility: Both parts maintain identical voltage ratings (70 V DC reverse), forward voltage characteristics (1.25 V @ 150 mA), reverse leakage current (2.5 µA @ 70 V), and operating temperature range (-55°C ~ 150°C). These parameters ensure functional equivalence in circuit operation.

Mechanical Compatibility: Both components utilize the SOT-23-3 package, enabling direct board-level substitution without PCB redesign or layout modifications.

Current Rating Consideration: The BAV99-E3-08 is rated for 150 mA average rectified current per diode, compared to the BAV99_L99Z at 200 mA. This substitution is suitable for applications operating at or below 150 mA. Applications requiring the full 200 mA rating require alternative evaluation.

Product Status and Availability: The BAV99-E3-08 is in active production status with substantial inventory availability (107,100 pcs), ensuring long-term procurement viability. The BAV99_L99Z is obsolete, making the substitute the recommended path for new designs and ongoing production support.

Compliance and Certifications: The BAV99-E3-08 carries RoHS3 compliance certification, REACH unaffected status, and EAR99 classification, matching the regulatory framework of the original part.

Frequently Asked Questions (FAQ)

Q: Can the BAV99-E3-08 directly replace the BAV99_L99Z in existing designs?

A: Direct substitution is applicable for applications operating at or below 150 mA average rectified current per diode. The BAV99-E3-08 maintains identical voltage ratings, forward voltage characteristics, package configuration, and operating temperature range. Applications requiring the full 200 mA rating of the original part require alternative component evaluation.

Q: What is the significance of the different current ratings between these parts?

A: The BAV99_L99Z is rated for 200 mA average rectified current per diode, while the BAV99-E3-08 is rated for 150 mA. This difference reflects the maximum continuous current each device can safely conduct. Selection depends on the actual circuit current requirements. If the application operates below 150 mA, the substitute is suitable. If the application requires operation between 150 mA and 200 mA, the substitute is not appropriate.

Q: Are the package dimensions identical between these parts?

A: Both parts use the SOT-23-3 package designation (also referenced as TO-236-3 or SC-59). This ensures identical footprint, pin spacing, and mounting compatibility on printed circuit boards.

Q: What is the difference in reverse recovery time between these parts?

A: The BAV99_L99Z has a reverse recovery time of 60 ns, while the BAV99-E3-08 has 6 ns. The substitute exhibits faster switching characteristics. This difference does not prevent substitution; faster recovery typically improves circuit performance in switching applications.

Q: Is the BAV99-E3-08 available in the same packaging format as the original part?

A: The BAV99-E3-08 is supplied in Tape & Reel (TR) format, which is standard for high-volume production. The original BAV99_L99Z packaging format is not specified in the provided data. Both parts use the SOT-23-3 package type, ensuring mechanical compatibility regardless of supply format.

Q: What compliance certifications apply to the BAV99-E3-08?

A: The BAV99-E3-08 is RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. These certifications align with current regulatory requirements for electronic components.