BAS40/ZLR Equivalent & Substitute Parts

Part Overview

The BAS40/ZLR is a Schottky diode manufactured by Nexperia USA Inc., rated for 40 V DC reverse voltage with 120 mA average rectified current in a TO-236AB surface mount package. This component is classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing design and procurement requirements. The part meets automotive-grade specifications with AEC-Q101 qualification and is ROHS3 compliant.

Substiute Parts

BAS40/ZLR

Nexperia USA Inc.In Stock: 928BAS40/ZLR Datasheet

Current PartRFQ

BAS40,215

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

DirectRFQ

BAS40,235

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

Parametric EquivalentRFQ

BAS40HMFHT116

Rohm SemiconductorIn Stock: 975BAS40HMFHT116 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS40/ZLR is determined by electrical and mechanical parameter equivalence across the following criteria:

Electrical Parameters (Critical for Substitution):

• 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
• Capacitance @ Vr, F: 5 pF @ 0 V, 1 MHz

Mechanical Parameters (Critical for Substitution):

• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• Operating Temperature - Junction (Max): 150°C

Compliance Parameters:

• Technology: Schottky
• Grade: Automotive
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

All identified substitute parts maintain identical electrical ratings, package compatibility, and automotive-grade compliance with the original BAS40/ZLR specification.

Parameter Comparison

Engineering Selection Recommendations

BAS40,215 (Nexperia USA Inc.)

This part is a direct substitute for the BAS40/ZLR. All electrical parameters, mechanical specifications, and compliance requirements are identical. The part is currently in active production status with 6,100 pieces in stock. The primary difference is AEC-Q100 qualification versus the original AEC-Q101. Both qualifications meet automotive-grade requirements. Packaging is supplied as Tape & Reel (TR), suitable for automated assembly processes.

BAS40,235 (Nexperia USA Inc.)

This part is a parametric equivalent to the BAS40/ZLR with identical electrical and mechanical specifications. The part is in active production with 10,552 pieces in stock, providing superior availability. Like BAS40,215, it carries AEC-Q100 qualification. Packaging is supplied as Tape & Reel (TR). This part is recommended for new designs and high-volume procurement due to inventory availability.

BAS40HMFHT116 (Rohm Semiconductor)

This part is a parametric equivalent manufactured by Rohm Semiconductor. All critical electrical parameters match the BAS40/ZLR specification. The part maintains AEC-Q101 qualification and automotive-grade status. The supplier device package is designated as SSD3, which is mechanically equivalent to TO-236AB. Capacitance specification is not provided in the datasheet. Packaging is supplied as Cut Tape (CT). This part is suitable for applications requiring cross-manufacturer qualification or where Rohm supply chain is preferred.

Frequently Asked Questions (FAQ)

Q: Can BAS40,215 be used as a direct replacement for BAS40/ZLR?

A: Yes. BAS40,215 maintains identical electrical ratings (40 V, 120 mA, 1 V forward voltage at 40 mA, 10 µA reverse leakage), identical package specifications (TO-236-3, SC-59, SOT-23-3), and identical operating temperature range (150°C maximum junction temperature). Both are automotive-grade Schottky diodes with ROHS3 compliance and MSL 1 rating. The only difference is AEC-Q100 versus AEC-Q101 qualification, both of which satisfy automotive requirements.

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

A: Both parts are electrically and mechanically identical to the BAS40/ZLR. The primary distinction is inventory availability: BAS40,235 has 10,552 pieces in stock compared to 6,100 pieces for BAS40,215. Both are supplied in Tape & Reel packaging and carry AEC-Q100 qualification. Selection between these two parts should be based on procurement lead time and supply chain requirements.

Q: Is BAS40HMFHT116 compatible with the original BAS40/ZLR footprint?

A: Yes. BAS40HMFHT116 is supplied in SSD3 package, which is mechanically equivalent to the TO-236AB package used by BAS40/ZLR. Both packages are classified as TO-236-3, SC-59, SOT-23-3 and are surface mount components with identical pin configurations and land patterns. The part is suitable for direct PCB footprint replacement.

Q: Why is the BAS40/ZLR listed as obsolete?

A: The BAS40/ZLR is classified as obsolete by the manufacturer. However, active equivalent parts are available from both Nexperia USA Inc. (BAS40,215 and BAS40,235) and Rohm Semiconductor (BAS40HMFHT116) with identical electrical and mechanical specifications. These active alternatives ensure continued design support and supply chain continuity.

Q: Are all substitute parts automotive-grade qualified?

A: Yes. All identified substitute parts (BAS40,215, BAS40,235, and BAS40HMFHT116) are automotive-grade Schottky diodes with either AEC-Q100 or AEC-Q101 qualification. All parts are ROHS3 compliant with MSL 1 rating, meeting automotive industry standards.

Q: What is the difference between AEC-Q100 and AEC-Q101 qualifications?

A: Both AEC-Q100 and AEC-Q101 are automotive qualification standards. AEC-Q100 applies to discrete semiconductors, while AEC-Q101 applies to optoelectronic components. For Schottky diodes, both qualifications indicate compliance with automotive reliability and quality requirements. Selection between parts with these qualifications should be based on specific design requirements and supply chain preferences.

Q: Can BAS40HMFHT116 be mixed with Nexperia parts in the same assembly?

A: Yes. BAS40HMFHT116 maintains identical electrical parameters and package compatibility with BAS40,215 and BAS40,235. All three parts are automotive-grade Schottky diodes with 40 V rating, 120 mA current rating, and identical forward voltage characteristics. Cross-manufacturer substitution is electrically and mechanically valid.

Q: What packaging options are available for these substitute parts?

A: BAS40,215 and BAS40,235 are supplied in Tape & Reel (TR) packaging, suitable for automated pick-and-place assembly. BAS40HMFHT116 is supplied in Cut Tape (CT) packaging. Selection should be based on assembly process requirements and volume considerations.