BAV99W Equivalent & Substitute Parts

Part Overview

The BAV99W is a general-purpose diode array manufactured by Diodes Incorporated, configured as 1 pair series connection with a maximum reverse voltage rating of 100 V and average rectified current of 150 mA per diode. The device is housed in a surface mount SC-70, SOT-323 package and is classified as obsolete. Due to its obsolete product status, equivalent and substitute parts are necessary for ongoing design support and procurement continuity. Substitute parts maintain functional compatibility through equivalent electrical characteristics and identical package specifications while offering active product status and improved availability.

Substiute Parts

BAV99W

Diodes IncorporatedIn Stock: 455158BAV99W Datasheet

Current PartRFQ

BAV99W-7-F

Diodes IncorporatedIn Stock: 305458BAV99W-7-F Datasheet

MFR RecommendedRFQ

BAV99W_R1_00001

Panjit International Inc.In Stock: 6336BAV99W_R1_00001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAV99W is determined by strict adherence to the following electrical and mechanical parameters:

Critical Compatibility Parameters:

• Diode Configuration: 1 Pair Series Connection (must match exactly)
• Package / Case: SC-70, SOT-323 (must match exactly for PCB compatibility)
• Current - Average Rectified (Io): 150 mA per diode (must match exactly)
• Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 150 mA (must match exactly)
• Reverse Recovery Time (trr): 4 ns (must match exactly)
• Current - Reverse Leakage @ Vr: 2.5 µA @ 75 V (must match exactly)
• Technology: Standard (must match exactly)
• Mounting Type: Surface Mount (must match exactly)

Allowable Parameter Variance:

• Voltage - DC Reverse (Vr) (Max): Substitute parts may operate at lower maximum reverse voltage ratings provided the application does not require the full 100 V rating of the original part
• Operating Temperature - Junction: Substitute parts may have extended or different temperature ranges
• Product Status: Transition from obsolete to active status is acceptable

The substitute parts listed below satisfy all critical compatibility parameters and are therefore electrically and mechanically interchangeable with the BAV99W in applications where the reduced reverse voltage rating does not exceed circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

BAV99W-7-F (Diodes Incorporated)

This part is the manufacturer-recommended substitute for the obsolete BAV99W. It is produced by the original manufacturer and maintains active product status with established supply chain availability. The BAV99W-7-F is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The primary electrical difference is a reduced maximum reverse voltage rating of 75 V compared to the original 100 V specification. This substitute is suitable for applications where the circuit reverse voltage does not exceed 75 V. The extended operating temperature range of -65°C to 150°C provides additional thermal margin compared to the original part specification.

BAV99W_R1_00001 (Panjit International Inc.)

This part is a cross-manufacturer equivalent produced by Panjit International Inc. and maintains active product status. It is ROHS3 compliant and REACH unaffected. The electrical characteristics are identical to the BAV99W-7-F, with a maximum reverse voltage rating of 75 V and an operating temperature range of -55°C to 150°C. This substitute provides an alternative sourcing option when Diodes Incorporated supply is constrained. Selection between the Diodes Incorporated and Panjit alternatives is based on procurement availability, lead time, and supply chain requirements.

Frequently Asked Questions (FAQ)

Q: Can the BAV99W-7-F be used as a direct replacement for the BAV99W?

A: The BAV99W-7-F is electrically and mechanically compatible with the BAV99W provided the application does not require reverse voltage operation exceeding 75 V. All other electrical parameters, including forward voltage, current rating, recovery time, and leakage current, are identical. The package and mounting type are identical, enabling direct PCB substitution.

Q: What is the primary difference between the BAV99W and its substitutes?

A: The maximum reverse voltage rating differs. The BAV99W is rated for 100 V reverse voltage, while both substitute parts are rated for 75 V. If the circuit design requires reverse voltage protection above 75 V, substitution is not appropriate. For applications operating at or below 75 V reverse voltage, the substitutes are fully compatible.

Q: Are there any temperature range considerations when selecting between BAV99W-7-F and BAV99W_R1_00001?

A: Both substitute parts exceed the original BAV99W operating temperature specification of 150°C maximum junction temperature. The BAV99W-7-F provides an extended range of -65°C to 150°C, while the BAV99W_R1_00001 provides -55°C to 150°C. For applications requiring operation below -55°C, the BAV99W-7-F is the appropriate selection.

Q: Are both substitute parts compliant with current regulatory standards?

A: Yes. Both BAV99W-7-F and BAV99W_R1_00001 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: Can I use BAV99W_R1_00001 if BAV99W-7-F is unavailable?

A: Yes. The BAV99W_R1_00001 is electrically and mechanically equivalent to the BAV99W-7-F. Both parts have identical electrical specifications and package configurations. Selection between the two is based on procurement availability and supply chain considerations.

Q: Does the SOT-323 package remain the same across all parts?

A: Yes. The BAV99W, BAV99W-7-F, and BAV99W_R1_00001 all use the SC-70, SOT-323 surface mount package. No PCB layout modifications are required when substituting between these parts.

Q: What should I verify before implementing a substitute part?

A: Confirm that the circuit reverse voltage requirement does not exceed 75 V. Verify that the operating temperature range of the selected substitute part accommodates the application environment. Confirm PCB footprint compatibility with the SC-70, SOT-323 package specification.