BAV70W/SN/8X Equivalent & Substitute Parts

Part Overview

The BAV70W/SN/8X is a general-purpose diode array manufactured by Nexperia USA Inc., configured as a 1 Pair Common Cathode device rated for 100 V DC reverse voltage and 175 mA average rectified current per diode. The component is housed in a surface mount SC-70, SOT-323 package and is qualified to AEC-Q101 automotive standards.

This part is classified as Obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement. Active alternatives with identical or compatible electrical and mechanical specifications are available from the same manufacturer and qualified suppliers.

Substiute Parts

BAV70W/SN/8X

Nexperia USA Inc.In Stock: 893BAV70W/SN/8X Datasheet

Current PartRFQ

BAV70W,115

Nexperia USA Inc.In Stock: 62880BAV70W,115 Datasheet

Parametric EquivalentRFQ

BAV70W,135

Nexperia USA Inc.In Stock: 10031BAV70W,135 Datasheet

Parametric EquivalentRFQ

MMBD4148CC

EVVO SemiIn Stock: 305113MMBD4148CC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAV70W/SN/8X is determined by the following critical parameters:

Parametric Equivalents (BAV70W,115 and BAV70W,135) maintain identical electrical specifications across all key parameters: 100 V reverse voltage rating, 175 mA average rectified current, 1.25 V forward voltage at 150 mA, 4 ns reverse recovery time, and 500 nA reverse leakage current at 80 V. Both parts are housed in the same SC-70, SOT-323 package and share identical compliance certifications (ROHS3, MSL 1). The primary distinction is packaging format: BAV70W,115 and BAV70W,135 are supplied in Tape & Reel format, whereas the main part is supplied in an alternative packaging configuration. Both parametric equivalents are Active products, providing long-term availability.

Similar Substitute (MMBD4148CC) manufactured by EVVO Semi shares the same diode configuration (1 Pair Common Cathode), reverse voltage rating (100 V), and reverse recovery time (4 ns). However, this part differs in current rating (200 mA versus 175 mA), forward voltage specification (1 V @ 10 mA versus 1.25 V @ 150 mA), reverse leakage current (5 µA @ 75 V versus 500 nA @ 80 V), and package type (SOT-23 versus SOT-323). The MMBD4148CC is suitable for applications where the higher current capability and different package footprint are acceptable.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalents):

BAV70W,115 and BAV70W,135 are the primary substitutes for the obsolete BAV70W/SN/8X. Both parts are manufactured by Nexperia USA Inc. and maintain complete electrical and thermal equivalence. These components are classified as Active products, ensuring long-term availability and supply chain stability. Both are ROHS3 compliant and carry MSL 1 rating, matching the original part's environmental specifications. Selection between BAV70W,115 and BAV70W,135 depends on packaging and distribution requirements, as both are supplied in Tape & Reel format with identical electrical performance.

For Alternative Applications (Similar Substitute):

The MMBD4148CC from EVVO Semi is suitable for applications where the higher current rating (200 mA versus 175 mA) provides design margin or where the SOT-23 package footprint is preferred over SOT-323. This part maintains the same reverse voltage rating, reverse recovery time, and diode configuration. However, the MMBD4148CC exhibits higher reverse leakage current (5 µA @ 75 V) and different forward voltage characteristics (1 V @ 10 mA), which may affect circuit performance in precision applications. The MMBD4148CC is an Active product with ROHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can BAV70W,115 or BAV70W,135 be used as direct replacements for BAV70W/SN/8X?

A: Yes. Both BAV70W,115 and BAV70W,135 are parametric equivalents with identical electrical specifications, thermal ratings, and package dimensions (SC-70, SOT-323). The primary difference is packaging format (Tape & Reel versus the original configuration). Both are Active products from Nexperia USA Inc.

Q: What is the difference between BAV70W,115 and BAV70W,135?

A: Both parts are electrically and mechanically identical. The designation difference reflects different packaging or distribution batches from Nexperia USA Inc. Both are supplied in Tape & Reel format and maintain identical electrical performance.

Q: Is MMBD4148CC a direct replacement?

A: MMBD4148CC is not a direct replacement due to package differences (SOT-23 versus SOT-323) and electrical parameter variations. The MMBD4148CC has a higher current rating (200 mA versus 175 mA), different forward voltage characteristics, and higher reverse leakage current. It is suitable only for applications where these differences are acceptable and the SOT-23 footprint is compatible with the PCB design.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. BAV70W,115, BAV70W,135, and MMBD4148CC are all ROHS3 compliant with MSL 1 rating, matching the environmental and regulatory requirements of the original BAV70W/SN/8X.

Q: What is the impact of the higher reverse leakage current in MMBD4148CC?

A: The MMBD4148CC exhibits reverse leakage current of 5 µA @ 75 V compared to 500 nA @ 80 V in the BAV70W/SN/8X. This 10-fold increase in leakage current may affect circuit performance in high-impedance or precision analog applications. Applications with lower impedance requirements are generally unaffected.

Q: Can the BAV70W,115 or BAV70W,135 be used in automotive applications?

A: The original BAV70W/SN/8X carries AEC-Q101 automotive qualification. The parametric equivalents BAV70W,115 and BAV70W,135 are Active products from Nexperia USA Inc. with identical specifications. Verification of automotive qualification status for these specific part numbers should be confirmed with the manufacturer or authorized distributor for critical automotive applications.