BAV70W-7 Equivalent & Substitute Parts

Part Overview

The BAV70W-7 is a general-purpose diode array manufactured by Diodes Incorporated, configured as a 1 Pair Common Cathode design in SC-70, SOT-323 surface mount package. This component is rated for 75 V DC reverse voltage and 150 mA average rectified current per diode, with a maximum forward voltage of 1.25 V at 150 mA. The BAV70W-7 is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain functional compatibility or provide enhanced electrical performance for new designs and production continuity.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
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	-55°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	SC-70, SOT-323
Technology	Standard
Speed	Small Signal ≤ 200mA (Io), Any Speed

Substitute Part Grouping Explanation

Substitute parts for the BAV70W-7 are classified into two categories based on electrical parameter alignment:

Category 1: Parametric Equivalents maintain identical electrical specifications (75 V reverse voltage, 150 mA current rating, 1.25 V forward voltage, 4 ns recovery time, 2.5 µA reverse leakage). These parts are direct functional replacements with no circuit redesign required. Parametric equivalents include BAV70W-7-F, BAV70W-AU_R1_000A1, and BAV70W_R1_00001.

Category 2: Manufacturer Recommended Substitutes provide enhanced electrical performance with higher voltage ratings (100 V), increased current capacity (175–200 mA), or improved leakage characteristics. These parts are suitable for applications requiring higher safety margins or upgraded performance specifications. This category includes BAV70W,115, BAV70W,135, BAV70WT-TP, BAV70WT1G, SBAV70WT1G, and M1MA142WKT1G.

All substitute parts maintain the same diode configuration (1 Pair Common Cathode), surface mount technology, and SC-70/SOT-323 package footprint, ensuring mechanical and electrical compatibility at the board level.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	trr	Reverse Leakage @ Vr	Tj (Operating)	Package	Product Status	RoHS Status
BAV70W-7	Diodes Incorporated	75 V	150 mA	1.25 V @ 150 mA	4 ns	2.5 µA @ 75 V	-55°C ~ 150°C	SC-70, SOT-323	Discontinued	Non-compliant
BAV70W-7-F	Diodes Incorporated	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
BAV70W,115	Nexperia USA Inc.	100 V	175 mA	1.25 V @ 150 mA	4 ns	500 nA @ 80 V	150°C (Max)	SC-70, SOT-323	Active	ROHS3 Compliant
BAV70W,135	Nexperia USA Inc.	100 V	175 mA	1.25 V @ 150 mA	4 ns	500 nA @ 80 V	150°C (Max)	SC-70, SOT-323	Active	ROHS3 Compliant
BAV70WT-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
BAV70WT1G	onsemi	100 V	200 mA	1.25 V @ 150 mA	6 ns	1 µA @ 100 V	-55°C ~ 150°C	SC-70, SOT-323	Active	ROHS3 Compliant
SBAV70WT1G	onsemi	100 V	200 mA	1.25 V @ 150 mA	6 ns	1 µA @ 100 V	-55°C ~ 150°C	SC-70, SOT-323	Active	ROHS3 Compliant
M1MA142WKT1G	onsemi	80 V	100 mA	1.2 V @ 100 mA	3 ns	100 nA @ 75 V	150°C (Max)	SC-70, SOT-323	Active	ROHS3 Compliant
BAV70W-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
BAV70W_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

Engineering Selection Recommendations

For Direct Replacement (No Circuit Modification Required):

BAV70W-7-F (Diodes Incorporated) is the primary direct equivalent, maintaining all electrical specifications of the discontinued BAV70W-7 while offering ROHS3 compliance and active product status. This part is suitable for applications requiring identical performance characteristics and is available in high inventory (50,200 pcs).

BAV70WT-TP (Micro Commercial Co) and BAV70W-AU_R1_000A1 and BAV70W_R1_00001 (Panjit International Inc.) are parametric equivalents with identical electrical ratings. All three are ROHS3 compliant and actively produced, providing alternative sourcing options.

For Enhanced Performance Applications:

BAV70W,115 and BAV70W,135 (Nexperia USA Inc.) provide 33% higher reverse voltage (100 V vs. 75 V) and 17% higher current capacity (175 mA vs. 150 mA), with improved reverse leakage characteristics (500 nA vs. 2.5 µA). These parts are suitable for designs requiring higher safety margins or upgraded specifications.

BAV70WT1G and SBAV70WT1G (onsemi) offer the highest current rating (200 mA) and 100 V reverse voltage. SBAV70WT1G includes automotive qualification (AEC-Q101) and is suitable for automotive applications. Both maintain the full operating temperature range (-55°C ~ 150°C).

For Current-Limited Applications:

M1MA142WKT1G (onsemi) is suitable only for applications with lower current requirements (100 mA maximum). This part offers the fastest reverse recovery time (3 ns) and lowest reverse leakage (100 nA @ 75 V), making it appropriate for high-frequency switching circuits with reduced current demands.

All substitute parts maintain ROHS3 compliance and are actively produced, ensuring long-term supply availability.

Frequently Asked Questions (FAQ)

Q: Can BAV70W-7-F be used as a direct replacement for BAV70W-7?

A: Yes. BAV70W-7-F maintains identical electrical specifications: 75 V reverse voltage, 150 mA current rating, 1.25 V forward voltage, 4 ns recovery time, and 2.5 µA reverse leakage. The only differences are packaging format (Tape & Reel vs. unspecified) and compliance status (ROHS3 compliant vs. non-compliant). No circuit modification is required.

Q: What is the difference between parametric equivalents and manufacturer recommended substitutes?

A: Parametric equivalents (BAV70W-7-F, BAV70WT-TP, BAV70W-AU_R1_000A1, BAV70W_R1_00001) maintain identical electrical specifications and are direct functional replacements. Manufacturer recommended substitutes (BAV70W,115, BAV70W,135, BAV70WT1G, SBAV70WT1G, M1MA142WKT1G) provide enhanced performance with higher voltage ratings, increased current capacity, or improved leakage characteristics, but may require circuit evaluation for compatibility.

Q: Can I use BAV70WT1G (200 mA) in place of BAV70W-7 (150 mA)?

A: Yes. BAV70WT1G provides higher current capacity (200 mA vs. 150 mA) and higher reverse voltage (100 V vs. 75 V), making it suitable for applications designed for the BAV70W-7. The part is pin-compatible in SC-70, SOT-323 package and maintains the same diode configuration. No circuit modification is required.

Q: Is M1MA142WKT1G suitable as a substitute for BAV70W-7?

A: M1MA142WKT1G is not recommended as a direct substitute. While it maintains the same package and diode configuration, it has a lower current rating (100 mA vs. 150 mA) and lower reverse voltage (80 V vs. 75 V). This part is suitable only for applications with reduced current requirements and is not appropriate for circuits designed for the full 150 mA specification.

Q: What is the advantage of SBAV70WT1G over BAV70WT1G?

A: SBAV70WT1G includes automotive qualification (AEC-Q101) and is graded for automotive applications. Both parts have identical electrical specifications (100 V, 200 mA, 1.25 V forward voltage, 6 ns recovery time, 1 µA reverse leakage). SBAV70WT1G is required for automotive designs; BAV70WT1G is suitable for industrial and consumer applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active substitute parts listed (BAV70W-7-F, BAV70W,115, BAV70W,135, BAV70WT-TP, BAV70WT1G, SBAV70WT1G, M1MA142WKT1G, BAV70W-AU_R1_000A1, BAV70W_R1_00001) are ROHS3 compliant. The original BAV70W-7 is non-compliant, making substitution necessary for new designs subject to ROHS regulations.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® formats. All parts maintain the SC-70, SOT-323 surface mount package footprint, ensuring mechanical compatibility. Packaging format selection depends on production volume and assembly requirements.

Q: Can I use Nexperia BAV70W,115 or BAV70W,135 interchangeably?

A: Yes. Both Nexperia parts (BAV70W,115 and BAV70W,135) have identical electrical specifications: 100 V reverse voltage, 175 mA current rating, 1.25 V forward voltage, 4 ns recovery time, and 500 nA reverse leakage. They are functionally interchangeable and differ only in packaging or distribution channels.

Q: What is the operating temperature range for each substitute part?

A: Most substitute parts operate from -55°C to 150°C (BAV70W-7-F, BAV70WT-TP, BAV70WT1G, SBAV70WT1G, BAV70W-AU_R1_000A1, BAV70W_R1_00001). Nexperia parts (BAV70W,115, BAV70W,135) and M1MA142WKT1G specify 150°C as maximum junction temperature without a minimum specification. Verify application temperature requirements before selection.

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