BAV99W-7 Equivalent & Substitute Parts

Part Overview

The BAV99W-7 is a general-purpose diode array featuring a 1 pair series connection configuration, rated for 75 V DC reverse voltage and 150 mA average rectified current per diode. The device is housed in a surface mount SC-70, SOT-323 package and operates across a junction temperature range of -65°C to 150°C. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain functional compatibility within target applications.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Series Connection
Voltage - DC Reverse (Vr) (Max)	75 V
Current - Average Rectified (Io) (per Diode)	150 mA
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA
Reverse Recovery Time (trr)	4 ns
Current - Reverse Leakage @ Vr	2.5 µA @ 75 V
Operating Temperature - Junction	-65°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	SC-70, SOT-323
Speed Classification	Small Signal ≤ 200mA (Io), Any Speed

Substitute Part Grouping Explanation

Substitution of the BAV99W-7 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Direct Substitution:

Diode configuration: 1 pair series connection
Package type: SC-70, SOT-323 (surface mount)
Voltage rating: 75 V DC reverse (minimum)
Current rating: 150 mA average rectified (minimum)
Forward voltage: 1.25 V @ 150 mA (maximum)
Reverse recovery time: 4 ns (maximum)
Reverse leakage current: 2.5 µA @ 75 V (maximum)
Operating temperature range: -65°C to 150°C (minimum)

Substitute parts are grouped into three categories:

Direct Manufacturer Equivalents: Parts from Diodes Incorporated with identical electrical specifications and active product status, differing only in packaging format or RoHS compliance status.

Parametric Equivalents: Parts from alternative manufacturers (Panjit International Inc., Micro Commercial Co) that meet or exceed all critical electrical parameters while maintaining the same package type and base product series.

Manufacturer Recommended Alternatives: Parts from onsemi and Nexperia USA Inc. that exceed the original specifications in voltage rating and/or current capacity, providing enhanced performance margins while maintaining functional compatibility through identical package geometry and configuration.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	trr	Reverse Leakage @ Vr	Tj (Operating)	Package	Product Status	RoHS Status
BAV99W-7	Diodes Incorporated	75 V	150 mA	1.25 V @ 150 mA	4 ns	2.5 µA @ 75 V	-65°C ~ 150°C	SC-70, SOT-323	Discontinued	Non-compliant
BAV99W-7-F	Diodes Incorporated	75 V	150 mA	1.25 V @ 150 mA	4 ns	2.5 µA @ 75 V	-65°C ~ 150°C	SC-70, SOT-323	Active	ROHS3 Compliant
BAV99WQ-7-F	Diodes Incorporated	75 V	150 mA	1.25 V @ 150 mA	4 ns	2.5 µA @ 75 V	-65°C ~ 150°C	SC-70, SOT-323	Active	ROHS3 Compliant
BAV99W-AU_R1_000A1	Panjit International Inc.	75 V	150 mA	1.25 V @ 150 mA	4 ns	2.5 µA @ 75 V	-55°C ~ 150°C	SC-70, SOT-323	Active	ROHS3 Compliant
BAV99W_R1_00001	Panjit International Inc.	75 V	150 mA	1.25 V @ 150 mA	4 ns	2.5 µA @ 75 V	-55°C ~ 150°C	SC-70, SOT-323	Active	ROHS3 Compliant
BAV99WT-TP	Micro Commercial Co	75 V	150 mA	1.25 V @ 150 mA	4 ns	2.5 µA @ 75 V	-55°C ~ 150°C	SC-70, SOT-323	Active	ROHS3 Compliant
BAV99RWT1G	onsemi	100 V	215 mA (DC)	1.25 V @ 150 mA	6 ns	2.5 µA @ 70 V	-65°C ~ 150°C	SC-70, SOT-323	Active	ROHS3 Compliant
BAV99WT1G	onsemi	100 V	215 mA (DC)	1.25 V @ 150 mA	6 ns	2.5 µA @ 70 V	-65°C ~ 150°C	SC-70, SOT-323	Active	ROHS3 Compliant
BAV99W,115	Nexperia USA Inc.	100 V	150 mA (DC)	1.25 V @ 150 mA	4 ns	500 nA @ 80 V	-65°C ~ 150°C (Max 150°C)	SC-70, SOT-323	Active	ROHS3 Compliant
BAV99W,135	Nexperia USA Inc.	100 V	150 mA (DC)	1.25 V @ 150 mA	4 ns	500 nA @ 80 V	-65°C ~ 150°C (Max 150°C)	SC-70, SOT-323	Active	ROHS3 Compliant

Engineering Selection Recommendations

Tier 1 - Direct Replacement (Identical Specifications):

BAV99W-7-F from Diodes Incorporated is the primary direct replacement. This part maintains all electrical specifications of the original BAV99W-7 while offering active product status and ROHS3 compliance. The part is available in Cut Tape and Digi-Reel packaging formats with substantial inventory (305,400 units).

BAV99WQ-7-F from Diodes Incorporated provides an alternative from the same manufacturer with identical electrical parameters. This variant includes automotive-grade qualification (AEC-Q101) and is actively produced.

Tier 2 - Parametric Equivalents (Identical Specifications, Alternative Manufacturers):

BAV99W-AU_R1_000A1 and BAV99W_R1_00001 from Panjit International Inc. meet all electrical requirements of the BAV99W-7. Both parts carry AEC-Q101 automotive qualification and ROHS3 compliance. Operating temperature range is -55°C to 150°C, which is narrower than the original at the lower bound but sufficient for most applications.

BAV99WT-TP from Micro Commercial Co provides identical electrical specifications with ROHS3 compliance and active product status. Operating temperature range is -55°C to 150°C.

Tier 3 - Enhanced Performance Alternatives (Exceeds Original Specifications):

BAV99RWT1G and BAV99WT1G from onsemi exceed the original specifications with 100 V reverse voltage rating and 215 mA current capacity. These parts are suitable for applications requiring higher performance margins. Reverse recovery time is 6 ns (versus 4 ns original). Both maintain the SC-70, SOT-323 package and are ROHS3 compliant with active product status.

BAV99W,115 and BAV99W,135 from Nexperia USA Inc. provide 100 V reverse voltage rating with 150 mA current capacity, matching the original current specification. Both include AEC-Q101 automotive qualification and ROHS3 compliance. Reverse leakage current is improved to 500 nA @ 80 V. Inventory availability is substantial (830,183 and 843,742 units respectively).

Frequently Asked Questions (FAQ)

Q: Can BAV99W-7 be replaced with BAV99W-7-F?

A: Yes. BAV99W-7-F is a direct equivalent with identical electrical specifications. The primary differences are active product status and ROHS3 compliance. Both parts use the same SC-70, SOT-323 package and are functionally interchangeable.

Q: What is the difference between Tier 1 and Tier 2 substitutes?

A: Tier 1 substitutes (BAV99W-7-F, BAV99WQ-7-F) are from Diodes Incorporated, the original manufacturer. Tier 2 substitutes (Panjit, Micro Commercial Co) are from alternative manufacturers but meet identical electrical specifications. All are functionally equivalent for the BAV99W-7 application.

Q: Can I use BAV99RWT1G or BAV99WT1G as replacements?

A: Yes, with consideration for enhanced specifications. These onsemi parts exceed the original ratings with 100 V reverse voltage (versus 75 V) and 215 mA current capacity (versus 150 mA). They are suitable for applications where higher performance margins are beneficial. The SC-70, SOT-323 package is identical, ensuring mechanical compatibility.

Q: What is the difference between BAV99W,115 and BAV99W,135?

A: Both Nexperia parts are electrically identical with 100 V reverse voltage and 150 mA current capacity. The difference lies in packaging tape configuration or internal manufacturing variants. Both are AEC-Q101 qualified and ROHS3 compliant.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts carry ROHS3 compliance. The original BAV99W-7 is RoHS non-compliant. Substitution with any listed alternative provides compliance with current environmental regulations.

Q: Does operating temperature range affect substitution?

A: The original BAV99W-7 operates from -65°C to 150°C. Panjit and Micro Commercial Co alternatives operate from -55°C to 150°C, narrower at the lower bound. For applications requiring operation below -55°C, use Diodes Incorporated (BAV99W-7-F, BAV99WQ-7-F), onsemi (BAV99RWT1G, BAV99WT1G), or Nexperia parts.

Q: Is the SC-70, SOT-323 package identical across all substitutes?

A: Yes. All substitute parts use the SC-70, SOT-323 surface mount package. PCB layout and reflow soldering parameters remain unchanged.

Q: Which substitute offers the best inventory availability?

A: Nexperia USA Inc. parts (BAV99W,115 and BAV99W,135) offer the highest inventory levels at 830,183 and 843,742 units respectively. Diodes Incorporated BAV99W-7-F provides 305,400 units.

Q: Can I mix different manufacturers in the same design?

A: Yes. All substitute parts are functionally equivalent within the specified electrical parameters. However, design documentation should reflect the selected part number and manufacturer for traceability and future procurement.

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