BAS70SV Equivalent & Substitute Parts

Part Overview

The BAS70SV is a Schottky diode array featuring two independent 70 V, 70 mA diodes in a surface mount SOT-563/SOT-666 package. Manufactured by onsemi, this component is classified as obsolete product status. Due to its obsolete designation, sourcing original BAS70SV units presents supply chain challenges. Equivalent and substitute parts maintain the core electrical specifications while offering improved availability through active manufacturers or alternative package configurations.

Substiute Parts

BAS70SV

onsemiIn Stock: 1025BAS70SV Datasheet

Current PartRFQ

BAS70-07V,115

Nexperia USA Inc.In Stock: 4824BAS70-07V,115 Datasheet

DirectRFQ

BAS70-07S,115

Nexperia USA Inc.In Stock: 5494BAS70-07S,115 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS70SV is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Diode configuration: 2 Independent
• Technology: Schottky
• Maximum reverse voltage (Vr): 70 V
• Average rectified current (Io): 70 mA per diode
• Forward voltage (Vf): 1 V @ 15 mA
• Speed classification: Small Signal ≤ 200 mA (Io), Any Speed
• Operating temperature range: Maximum junction temperature ≥ 150°C

Mechanical Compatibility Criteria:

• Mounting type: Surface Mount
• Package compatibility: SOT-563, SOT-666, 6-TSSOP, SC-88, SOT-363
• Moisture sensitivity: MSL 1 (Unlimited)

The substitute parts listed maintain full electrical equivalence to the BAS70SV. Package variations are permitted where the physical footprint and pin configuration support direct substitution or straightforward PCB layout adaptation.

Parameter Comparison

Engineering Selection Recommendations

BAS70-07V,115 (Nexperia USA Inc.): This part provides direct electrical and package equivalence to the BAS70SV in SOT-666 configuration. The BAS70-07V,115 carries "Not For New Designs" status, indicating limited long-term availability. However, it maintains ROHS3 compliance and REACH unaffected status. Current inventory availability is 4,725 units. This option is suitable for legacy system maintenance and repair applications where the SOT-666 package footprint is already established.

BAS70-07S,115 (Nexperia USA Inc.): This part maintains full electrical equivalence while offering an alternative package configuration in 6-TSSOP/SC-88/SOT-363. The BAS70-07S,115 carries active product status, providing superior long-term availability and supply chain stability. ROHS3 compliance and REACH unaffected status are confirmed. Current inventory availability is 5,475 units. This option is the preferred choice for new designs and applications where package footprint flexibility exists, as it ensures sustained component availability and manufacturer support.

Both substitute parts exhibit reverse leakage current of 10 µA @ 70 V, compared to 2.5 µA @ 70 V for the original BAS70SV. This difference remains within acceptable operating parameters for Schottky diode applications in this voltage and current class.

Frequently Asked Questions (FAQ)

Q: Can BAS70-07V,115 and BAS70-07S,115 be used interchangeably with BAS70SV?

A: Both parts maintain electrical equivalence across all specified parameters: 70 V reverse voltage, 70 mA average rectified current, 1 V forward voltage at 15 mA, and identical temperature operating range. Interchangeability depends on package compatibility. BAS70-07V,115 uses SOT-666 package matching the BAS70SV footprint. BAS70-07S,115 uses 6-TSSOP package, requiring PCB layout modification.

Q: What is the difference between SOT-563F and SOT-666 packages?

A: Both packages accommodate the same diode array configuration and pin count. SOT-563F is the supplier device package designation for the original BAS70SV. SOT-666 is the equivalent package designation used by Nexperia for the BAS70-07V,115. These packages are mechanically and electrically compatible for direct substitution.

Q: Why does BAS70-07S,115 use a different package (6-TSSOP)?

A: The 6-TSSOP package (also designated SC-88 or SOT-363) provides an alternative form factor while maintaining the same electrical specifications. This package option allows design flexibility and may offer improved availability or cost characteristics. PCB layout modification is required for this substitution.

Q: What does "Not For New Designs" status mean for BAS70-07V,115?

A: This designation indicates that Nexperia does not recommend this part for new product development. While currently available, long-term supply cannot be guaranteed. For new designs, BAS70-07S,115 with active product status is the preferred selection.

Q: Are there compliance differences between the substitute parts?

A: Both Nexperia parts carry ROHS3 compliance and REACH unaffected status. The original BAS70SV does not specify RoHS status. All three parts maintain MSL 1 (Unlimited) moisture sensitivity rating and EAR99 export classification.

Q: What is the significance of reverse leakage current differences?

A: The BAS70SV specifies 2.5 µA @ 70 V reverse leakage, while both Nexperia substitutes specify 10 µA @ 70 V. This 4× difference remains within normal Schottky diode operating parameters and does not affect functional compatibility in standard rectification, clamping, or switching applications within the specified voltage and current ratings.

Q: Which substitute part should be selected for new product designs?

A: BAS70-07S,115 is the recommended selection for new designs. It maintains active product status, ensuring sustained manufacturer support and supply chain availability. The 6-TSSOP package provides modern surface mount characteristics. If existing PCB layouts require SOT-666 compatibility, BAS70-07V,115 is acceptable for legacy applications despite its "Not For New Designs" designation.