BAS40/ZLVL Equivalent & Substitute Parts Reference

Part Overview

The BAS40/ZLVL is a Schottky diode manufactured by NXP USA Inc., rated for 40 V DC reverse voltage with 120 mA average rectified current in a surface mount SOT-23 package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1) and is suitable for small signal applications not exceeding 200 mA.

Substiute Parts

BAS40/ZLVL

NXP USA Inc.In Stock: 1048BAS40/ZLVL Datasheet

Current PartRFQ

BAS40,235

Nexperia USA Inc.In Stock: 10608BAS40,235 Datasheet

MFR RecommendedRFQ

BAS40,215

Nexperia USA Inc.In Stock: 6188BAS40,215 Datasheet

Parametric EquivalentRFQ

BAS40HMFHT116

Rohm SemiconductorIn Stock: 975BAS40HMFHT116 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS40/ZLVL is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io): 120 mA
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 40 mA
• Current - Reverse Leakage @ Vr: 10 µA @ 40 V
• Technology: Schottky
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Operating Temperature - Junction (Max): 150°C

All identified substitute parts maintain identical electrical ratings and mechanical compatibility. Substitutes are grouped into two categories: MFR Recommended (active product status with automotive qualification) and Parametric Equivalents (active product status with automotive qualification). The obsolete status of the original part necessitates selection from active alternatives.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: BAS40,235 (Nexperia USA Inc.)

BAS40,235 is the MFR recommended substitute with active product status. This part carries automotive grade qualification (AEC-Q100) and is available in high inventory (10,552 pcs). The part is supplied in Tape & Reel packaging, suitable for automated assembly processes. All electrical parameters and mechanical specifications are identical to the obsolete BAS40/ZLVL.

Secondary Recommendation: BAS40,215 (Nexperia USA Inc.)

BAS40,215 is a parametric equivalent with active product status and automotive grade qualification (AEC-Q100). Inventory availability is 6,100 pcs. This part is also supplied in Tape & Reel packaging and maintains full electrical and mechanical compatibility with the original part.

Tertiary Recommendation: BAS40HMFHT116 (Rohm Semiconductor)

BAS40HMFHT116 is a parametric equivalent manufactured by Rohm Semiconductor with active product status and automotive qualification (AEC-Q101). This part is supplied in Cut Tape packaging with lower inventory (960 pcs). The supplier device package designation (SSD3) differs from the Nexperia variants (TO-236AB), though mechanical compatibility is maintained within the TO-236-3, SC-59, SOT-23-3 package family.

All three substitute parts are ROHS3 compliant with MSL 1 rating and maintain the 150°C maximum junction temperature specification of the original part.

Frequently Asked Questions (FAQ)

Q: Can BAS40,235 be used as a direct replacement for BAS40/ZLVL?

A: Yes. BAS40,235 maintains identical electrical ratings (40 V reverse voltage, 120 mA average rectified current, 1 V forward voltage at 40 mA, 10 µA reverse leakage at 40 V) and is compatible with the same package footprint (TO-236-3, SC-59, SOT-23-3). The part is active and available in production quantities.

Q: What is the difference between BAS40,235 and BAS40,215?

A: Both parts are manufactured by Nexperia USA Inc. and maintain identical electrical specifications and package compatibility. The primary difference is inventory availability (BAS40,235: 10,552 pcs; BAS40,215: 6,100 pcs) and internal design variants. Both carry AEC-Q100 automotive qualification.

Q: Why does BAS40HMFHT116 have a different supplier device package designation (SSD3 vs. TO-236AB)?

A: SSD3 and TO-236AB are equivalent package designations used by different manufacturers (Rohm vs. Nexperia). Both refer to the same physical package family (TO-236-3, SC-59, SOT-23-3) with identical pin configuration and footprint compatibility.

Q: Are all substitute parts automotive qualified?

A: Yes. BAS40,235 and BAS40,215 carry AEC-Q100 qualification. BAS40HMFHT116 carries AEC-Q101 qualification. All three parts meet automotive industry standards.

Q: What is the moisture sensitivity level for these parts?

A: All substitute parts, including the original BAS40/ZLVL, have MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All substitute parts are compatible with PCB designs specified for BAS40/ZLVL. The mechanical package (TO-236-3, SC-59, SOT-23-3) and electrical specifications are identical, allowing direct footprint compatibility without design modification.