BAS 40-06 B5003 Equivalent & Substitute Parts

Part Overview

The BAS 40-06 B5003 is a Schottky diode array manufactured by Infineon Technologies, configured as 1 pair common anode with 40 V reverse voltage rating and 120 mA average rectified current per diode. The device is packaged in SOT-23-3 (TO-236-3, SC-59) surface mount configuration.

The BAS 40-06 B5003 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production, repair, and redesign applications. Active alternatives from multiple manufacturers provide identical or enhanced electrical performance within the same or compatible package formats.

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
Speed Classification	Small Signal ≤ 200mA (Io), Any Speed	—
Reverse Recovery Time (trr)	100	ps
Current - Reverse Leakage @ Vr	1	µA @ 30 V
Operating Temperature - Junction (Max)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the BAS 40-06 B5003 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

Diode Configuration: 1 Pair Common Anode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io) (per Diode): 120 mA (DC) minimum
Voltage - Forward (Vf) (Max) @ If: 1 V @ 40 mA maximum
Operating Temperature - Junction: 150°C (Max) minimum
Mounting Type: Surface Mount
Package / Case: TO-236-3, SC-59, SOT-23-3 or SC-70, SOT-323

Substitution Categories:

Parametric Equivalents (Infineon Active): BAS4006E6327HTSA1 and BAS4006E6433HTMA1 provide identical electrical specifications with active product status and RoHS3 compliance. These parts are direct functional replacements in Tape & Reel packaging.

Direct Manufacturer Equivalents (Nexperia): BAS40-06,215 and BAS40-06,235 are Nexperia USA Inc. variants with identical core specifications, automotive grade qualification (AEC-Q100), and active status. These parts feature slightly elevated reverse leakage (10 µA @ 40 V) but remain within acceptable substitution parameters.

Enhanced Current Rating Alternatives: BAS40-06-7-F (Diodes Incorporated) and BAS40-06-TP (Micro Commercial Co) provide 200 mA average rectified current, exceeding the 120 mA requirement. These parts maintain 40 V reverse voltage and SOT-23-3 packaging, offering performance margin for current-sensitive applications.

Smaller Package Alternatives: 1PS70SB46,115 and BAS40-06W,115 (Nexperia) provide identical electrical specifications in SC-70, SOT-323 package format, enabling space-constrained designs.

Higher Current Capability: BAT54AFILM (STMicroelectronics) provides 300 mA average rectified current with 40 V reverse voltage in SOT-23-3 packaging, suitable for applications requiring increased current handling.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io (per Diode) [mA]	Vf (Max) @ If [V]	Tj (Max) [°C]	Package	Product Status	Packaging Type
BAS 40-06 B5003	Infineon Technologies	40	120	1 @ 40 mA	150	SOT-23-3	Obsolete	—
BAS4006E6327HTSA1	Infineon Technologies	40	120	1 @ 40 mA	150	SOT-23-3	Active	Tape & Reel (TR)
BAS4006E6433HTMA1	Infineon Technologies	40	120	1 @ 40 mA	150	SOT-23-3	Active	Tape & Reel (TR)
BAS40-06,215	Nexperia USA Inc.	40	120	1 @ 40 mA	150	SOT-23-3	Active	Cut Tape (CT) & Digi-Reel®
BAS40-06,235	Nexperia USA Inc.	40	120	1 @ 40 mA	150	SOT-23-3	Active	Tape & Reel (TR)
1PS70SB46,115	Nexperia USA Inc.	40	120	1 @ 40 mA	150	SOT-323	Active	Tape & Reel (TR)
BAS40-06-7-F	Diodes Incorporated	40	200	1 @ 40 mA	125	SOT-23-3	Active	Tape & Reel (TR)
BAS40-06-TP	Micro Commercial Co	40	200	1 @ 40 mA	125	SOT-23-3	Active	Tape & Reel (TR)
BAS40-06LT1G	onsemi	40	120	1 @ 40 mA	150	SOT-23-3	Active	Cut Tape (CT) & Digi-Reel®
BAS40-06W,115	Nexperia USA Inc.	40	120	1 @ 40 mA	150	SOT-323	Active	Tape & Reel (TR)
BAT54AFILM	STMicroelectronics	40	300	0.9 @ 100 mA	150	SOT-23-3	Active	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications and Package):

Select BAS4006E6327HTSA1 or BAS4006E6433HTMA1 (Infineon Technologies) for applications requiring exact electrical and mechanical compatibility. Both parts are active, RoHS3 compliant, and available in high inventory quantities. These parts maintain the original SOT-23-3 package and 120 mA current rating.

Alternatively, BAS40-06LT1G (onsemi) provides identical specifications with active product status and widespread availability in Cut Tape & Digi-Reel® packaging.

For Automotive Applications:

BAS40-06,215 and BAS40-06,235 (Nexperia USA Inc.) are qualified to AEC-Q100 automotive standards with active product status. These parts are suitable for automotive-grade designs requiring formal qualification documentation.

For Space-Constrained Designs:

1PS70SB46,115 or BAS40-06W,115 (Nexperia USA Inc.) provide identical electrical specifications in the smaller SC-70, SOT-323 package format. Both parts are active and RoHS3 compliant.

For Current Margin Applications:

BAS40-06-7-F (Diodes Incorporated) or BAS40-06-TP (Micro Commercial Co) provide 200 mA average rectified current, offering 67% additional current capacity over the original 120 mA specification while maintaining 40 V reverse voltage and SOT-23-3 packaging.

For Maximum Current Capability:

BAT54AFILM (STMicroelectronics) provides 300 mA average rectified current with 40 V reverse voltage in SOT-23-3 packaging, suitable for high-current applications.

All recommended substitutes are active products with RoHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can BAS4006E6327HTSA1 or BAS4006E6433HTMA1 be used as direct replacements for BAS 40-06 B5003?

A: Yes. Both Infineon parts provide identical electrical specifications: 40 V reverse voltage, 120 mA average rectified current per diode, 1 V forward voltage at 40 mA, and 150°C maximum junction temperature. Both are packaged in SOT-23-3 and are active products with RoHS3 compliance. The primary difference is packaging format (Tape & Reel vs. the original bulk packaging).

Q: What is the difference between BAS40-06,215 and BAS40-06,235?

A: Both are Nexperia USA Inc. variants with identical electrical specifications and automotive AEC-Q100 qualification. BAS40-06,215 is supplied in Cut Tape (CT) & Digi-Reel® packaging, while BAS40-06,235 is supplied in Tape & Reel (TR) packaging. Electrical performance and package form factor (SOT-23-3) are identical.

Q: Can I use BAS40-06-7-F or BAS40-06-TP instead of the original BAS 40-06 B5003?

A: Yes, with design consideration. Both parts provide 200 mA average rectified current (vs. 120 mA original), 40 V reverse voltage, and SOT-23-3 packaging. The higher current rating provides performance margin. However, maximum junction temperature is 125°C (vs. 150°C original). Verify that your application's thermal environment does not exceed 125°C junction temperature.

Q: What is the advantage of using 1PS70SB46,115 or BAS40-06W,115?

A: These Nexperia parts provide identical electrical specifications in the smaller SC-70, SOT-323 package format. Use these parts when PCB space is constrained or when smaller package footprint is required. Both are active, RoHS3 compliant, and automotive qualified (AEC-Q100).

Q: Is BAT54AFILM a suitable substitute?

A: BAT54AFILM is suitable for applications requiring higher current capacity. It provides 300 mA average rectified current (vs. 120 mA original) with 40 V reverse voltage in SOT-23-3 packaging. Forward voltage is 0.9 V at 100 mA (vs. 1 V at 40 mA original). This part is active and RoHS3 compliant. Verify that the slightly lower forward voltage does not affect circuit performance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original BAS 40-06 B5003 environmental specifications.

Q: What packaging formats are available for substitutes?

A: Substitutes are available in three packaging formats: Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, and bulk. SOT-23-3 (TO-236-3, SC-59) is the standard package for most substitutes. SC-70, SOT-323 variants (1PS70SB46,115 and BAS40-06W,115) are available for space-constrained applications.

Q: Can I mix different manufacturers' parts in the same design?

A: Yes. All recommended substitutes meet identical electrical specifications for the critical parameters: 40 V reverse voltage, 120 mA (or higher) average rectified current, 1 V forward voltage at 40 mA, and 150°C (or higher) maximum junction temperature. Parts from Infineon Technologies, Nexperia USA Inc., Diodes Incorporated, Micro Commercial Co, onsemi, and STMicroelectronics are all qualified alternatives.

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