BAS40-06,235 Equivalent & Substitute Parts

Part Overview

The BAS40-06,235 is a Schottky diode array manufactured by Nexperia USA Inc., configured as a 1 Pair Common Anode device rated for 40 V DC reverse voltage and 120 mA average rectified current per diode. The component is housed in a TO-236-3 (SOT-23-3) surface mount package and qualifies for automotive applications under AEC-Q100 certification. The product maintains Active status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified to address supply chain requirements, packaging format preferences, and application-specific performance needs while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Diode Configuration	1 Pair Common Anode	—
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	40	V
Current - Average Rectified (Io) (per Diode)	120	mA (DC)
Voltage - Forward (Vf) (Max) @ If	1	V @ 40 mA
Current - Reverse Leakage @ Vr	10	µA @ 40 V
Operating Temperature - Junction (Max)	150	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q100	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on electrical parameter alignment with the BAS40-06,235:

Parametric Equivalents maintain identical electrical specifications: 40 V reverse voltage, 120 mA average rectified current, 1 V forward voltage at 40 mA, and 10 µA reverse leakage at 40 V. These parts differ only in packaging format (Cut Tape & Digi-Reel® versus Tape & Reel) or manufacturer source. Parametric equivalents include BAS40-06,215 (Nexperia, Cut Tape format) and BAS40-06HMFHT116 (Rohm Semiconductor, SSD3 package variant).

Direct Manufacturer Equivalents are sourced from alternative manufacturers and maintain the core electrical specifications while offering different operating temperature ranges or leakage current specifications at different measurement points. BAS40-06LT1G (onsemi) exemplifies this category with identical voltage and current ratings but expanded operating temperature range (-55°C to 150°C) and lower reverse leakage (1 µA @ 25 V).

Similar Parts share the same 40 V reverse voltage and SOT-23-3 package but feature higher current ratings (200 mA or 300 mA) or enhanced performance characteristics. These parts are suitable for applications requiring higher current capacity or improved thermal performance while maintaining voltage compatibility. Similar parts include BAS40-06-7-F (Diodes Incorporated, 200 mA), BAS40-06-TP (Micro Commercial Co, 200 mA), BAT54AFILM (STMicroelectronics, 300 mA), BAT6406E6327HTSA1 (Infineon, 250 mA), and SDM20N40A-7 (Diodes Incorporated, 200 mA).

Substitution logic is based strictly on the following key parameters:

Voltage - DC Reverse (Vr) (Max): 40 V minimum
Diode Configuration: 1 Pair Common Anode
Package / Case: TO-236-3, SC-59, SOT-23-3
Mounting Type: Surface Mount
Technology: Schottky
Current - Average Rectified (Io) (per Diode): 120 mA minimum

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io (per Diode) [mA]	Vf (Max) @ If [V]	Ir @ Vr [µA]	Tj (Max) [°C]	Package	Packaging Format	Grade	Qualification
BAS40-06,235	Nexperia USA Inc.	40	120	1 @ 40 mA	10 @ 40 V	150	TO-236-3	Tape & Reel (TR)	Automotive	AEC-Q100
BAS40-06,215	Nexperia USA Inc.	40	120	1 @ 40 mA	10 @ 40 V	150	TO-236-3	Cut Tape (CT) & Digi-Reel®	Automotive	AEC-Q100
BAS40-06LT1G	onsemi	40	120	1 @ 40 mA	1 @ 25 V	150	TO-236-3	Cut Tape (CT) & Digi-Reel®	—	—
BAS40-06-7-F	Diodes Incorporated	40	200	1 @ 40 mA	200 nA @ 30 V	125	TO-236-3	Tape & Reel (TR)	—	—
BAS40-06-TP	Micro Commercial Co	40	200	1 @ 40 mA	200 nA @ 30 V	125	TO-236-3	Tape & Reel (TR)	—	—
BAS4006E6327HTSA1	Infineon Technologies	40	120	1 @ 40 mA	1 µA @ 30 V	150	TO-236-3	Tape & Reel (TR)	—	—
BAS4006E6433HTMA1	Infineon Technologies	40	120	1 @ 40 mA	1 µA @ 30 V	150	TO-236-3	Tape & Reel (TR)	—	—
BAT54AFILM	STMicroelectronics	40	300	900 mV @ 100 mA	1 µA @ 30 V	150	TO-236-3	Cut Tape (CT) & Digi-Reel®	—	—
BAT6406E6327HTSA1	Infineon Technologies	40	250	750 mV @ 100 mA	2 µA @ 30 V	150	TO-236-3	Cut Tape (CT) & Digi-Reel®	Automotive	AEC-Q101
SDM20N40A-7	Diodes Incorporated	40	200	550 mV @ 200 mA	15 µA @ 30 V	125	TO-236-3	Tape & Reel (TR)	—	—
BAS40-06HMFHT116	Rohm Semiconductor	40	120	1 @ 40 mA	10 µA @ 40 V	150	TO-236-3	Cut Tape (CT) & Digi-Reel®	Automotive	AEC-Q101

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance)

BAS40-06,215 (Nexperia USA Inc.) serves as the direct parametric equivalent to BAS40-06,235, offering identical electrical specifications with the primary distinction being packaging format. Selection of BAS40-06,215 is appropriate when Cut Tape & Digi-Reel® format is preferred for automated assembly processes or when inventory availability favors this packaging variant. Both parts maintain AEC-Q100 automotive qualification and ROHS3 compliance.

BAS40-06HMFHT116 (Rohm Semiconductor) provides parametric equivalence with identical electrical ratings and automotive-grade qualification under AEC-Q101. The SSD3 package variant accommodates alternative PCB layout requirements while maintaining electrical performance. This part is suitable for applications where Rohm component qualification is specified or preferred.

For Enhanced Current Capacity Applications

BAS40-06-7-F (Diodes Incorporated), BAS40-06-TP (Micro Commercial Co), and SDM20N40A-7 (Diodes Incorporated) are rated for 200 mA average rectified current, providing 67% higher current capacity than the BAS40-06,235. These parts maintain 40 V reverse voltage compatibility and SOT-23-3 package form factor. Selection is appropriate for applications requiring higher current handling without voltage derating. Operating temperature maximum is 125°C for these variants.

BAT54AFILM (STMicroelectronics) offers 300 mA current rating with 40 V reverse voltage, providing 150% higher current capacity. This part is suitable for high-current applications requiring thermal margin or where future design scaling to higher current levels is anticipated.

BAT6406E6327HTSA1 (Infineon Technologies) provides 250 mA current rating with automotive-grade qualification (AEC-Q101) and 40 V reverse voltage compatibility. This part bridges the current capacity gap between the 120 mA and 300 mA options while maintaining automotive qualification.

For Alternative Manufacturer Sourcing

BAS40-06LT1G (onsemi) maintains 120 mA current rating and 40 V reverse voltage with expanded operating temperature range (-55°C to 150°C). This part is suitable for applications requiring extended low-temperature performance or when onsemi component qualification is specified.

BAS4006E6327HTSA1 and BAS4006E6433HTMA1 (Infineon Technologies) both provide 120 mA current rating with 40 V reverse voltage and 150°C maximum junction temperature. These parts are suitable for applications where Infineon component sourcing is required or preferred.

All substitute parts listed maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and surface mount TO-236-3 package compatibility with the original BAS40-06,235 specification.

Frequently Asked Questions (FAQ)

Q: Can BAS40-06,215 be used as a direct replacement for BAS40-06,235?

A: Yes. BAS40-06,215 is a parametric equivalent with identical electrical specifications: 40 V reverse voltage, 120 mA average rectified current, 1 V forward voltage at 40 mA, and 10 µA reverse leakage at 40 V. The primary difference is packaging format (Cut Tape & Digi-Reel® versus Tape & Reel). Both parts are manufactured by Nexperia USA Inc. and maintain AEC-Q100 automotive qualification.

Q: What is the difference between parametric equivalents and similar parts?

A: Parametric equivalents maintain identical electrical specifications across all key parameters. Similar parts share the same 40 V reverse voltage and SOT-23-3 package but feature higher current ratings (200 mA, 250 mA, or 300 mA) or different performance characteristics. Similar parts are suitable for applications requiring higher current capacity but are not direct one-to-one replacements.

Q: Can I use a 200 mA rated part (such as BAS40-06-7-F) in place of the 120 mA BAS40-06,235?

A: Yes, from an electrical compatibility standpoint. The 200 mA parts maintain 40 V reverse voltage and SOT-23-3 package compatibility. However, the 200 mA variants have a maximum operating temperature of 125°C compared to 150°C for the BAS40-06,235. Circuit design must account for this thermal limitation. Higher current capacity does not degrade performance in lower-current applications.

Q: Are all substitute parts automotive-qualified?

A: No. The BAS40-06,235 and BAS40-06,215 carry AEC-Q100 qualification. BAS40-06HMFHT116 and BAT6406E6327HTSA1 carry AEC-Q101 qualification. Other substitute parts do not list automotive qualification. Applications requiring automotive-grade components must select from BAS40-06,235, BAS40-06,215, BAS40-06HMFHT116, or BAT6406E6327HTSA1.

Q: What packaging formats are available for the BAS40-06 series?

A: The BAS40-06,235 is supplied in Tape & Reel (TR) format. BAS40-06,215 is available in Cut Tape (CT) & Digi-Reel® format. BAS40-06HMFHT116 is supplied in Cut Tape (CT) & Digi-Reel® format with SSD3 package designation. Packaging format selection depends on assembly equipment compatibility and inventory management requirements.

Q: Do all substitute parts comply with ROHS3 and have unlimited moisture sensitivity?

A: Yes. All substitute parts listed maintain ROHS3 compliance and Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture bake-out requirements.

Q: What is the reverse leakage current specification, and why does it vary among substitutes?

A: Reverse leakage current is measured at specified voltage and temperature conditions. The BAS40-06,235 specifies 10 µA @ 40 V. Substitute parts specify leakage at different measurement points (e.g., 1 µA @ 25 V or 1 µA @ 30 V). Lower leakage values indicate better reverse blocking performance. Leakage specifications must be evaluated at the application's actual operating voltage and temperature to ensure compatibility.

Q: Can I substitute a part with a lower maximum junction temperature?

A: Substitution with lower maximum junction temperature (such as 125°C versus 150°C) is permissible only if the application's thermal design ensures the diode junction temperature remains below the substitute part's rating. Circuit thermal analysis is required to confirm compatibility.

Q: What is the significance of the SOT-23-3 package designation?

A: SOT-23-3 (also designated TO-236-3 or SC-59) is a three-terminal surface mount package. All substitute parts maintain this package form factor, ensuring PCB footprint and land pattern compatibility with the BAS40-06,235. Package compatibility eliminates the need for PCB redesign.

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