BAS40-05W Equivalent & Substitute Parts

Part Overview

The BAS40-05W is an active Schottky diode array manufactured by Infineon Technologies, configured as a 1 Pair Common Cathode arrangement in SC-70, SOT-323 surface mount packaging. This component operates at a maximum reverse voltage of 40 V with an average rectified current of 120 mA per diode and a maximum forward voltage of 1 V at 40 mA. The part is currently in active production status with 113,400 units in stock.

Equivalent and substitute parts are identified based on matching core electrical and mechanical parameters: identical reverse voltage rating (40 V), common cathode diode pair configuration, identical package type (SC-70, SOT-323), and compatible surface mount mounting technology. Substitutes may vary in current-handling capacity, forward voltage characteristics, and temperature operating ranges while maintaining functional compatibility within specified application constraints.

Substiute Parts

BAS40-05W

Infineon TechnologiesIn Stock: 113493BAS40-05W Datasheet

Current PartRFQ

BAT54CWFILM

STMicroelectronicsIn Stock: 52182BAT54CWFILM Datasheet

SimilarRFQ

SDMG0340LC-7-F

Diodes IncorporatedIn Stock: 17236SDMG0340LC-7-F Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BAS40-05W is determined by the following mandatory parameters:

Fixed Compatibility Requirements:

• Voltage - DC Reverse (Vr) (Max): 40 V (exact match required)
• Diode Configuration: 1 Pair Common Cathode (exact match required)
• Package / Case: SC-70, SOT-323 (exact match required)
• Technology: Schottky (exact match required)
• Mounting Type: Surface Mount (exact match required)

Variable Parameters Allowing Substitution:

• Current - Average Rectified (Io) (per Diode): May exceed 120 mA
• Voltage - Forward (Vf) (Max) @ If: May vary within application tolerance
• Operating Temperature - Junction: May extend beyond 150°C
• Current - Reverse Leakage @ Vr: May vary within acceptable limits
• Speed characteristics: May differ based on application requirements

The identified substitute parts BAT54CWFILM and SDMG0340LC-7-F satisfy all fixed compatibility requirements. Substitution suitability depends on application current requirements and thermal operating conditions.

Parameter Comparison

Engineering Selection Recommendations

BAT54CWFILM (STMicroelectronics)

The BAT54CWFILM is suitable for applications requiring current capacity exceeding 120 mA per diode. This part supports up to 300 mA average rectified current, providing design margin for higher-current applications. The component maintains the 40 V reverse voltage rating and SC-70, SOT-323 package compatibility. Operating temperature range extends to −40°C, offering broader thermal operating conditions compared to the BAS40-05W. RoHS3 compliance and unlimited moisture sensitivity level (MSL 1) are documented. This substitute is appropriate when application current requirements exceed the BAS40-05W specification.

SDMG0340LC-7-F (Diodes Incorporated)

The SDMG0340LC-7-F is suitable for applications with current requirements not exceeding 30 mA per diode. This part maintains the 40 V reverse voltage rating and SC-70, SOT-323 package compatibility. The forward voltage characteristic of 370 mV at 1 mA indicates lower forward voltage drop at low current levels. Operating temperature range extends to −40°C, providing broader thermal operating conditions. RoHS3 compliance and unlimited moisture sensitivity level (MSL 1) are documented. This substitute is appropriate for low-current applications where the BAS40-05W current rating exceeds design requirements.

All substitute parts maintain active product status and are available in production quantities.

Frequently Asked Questions (FAQ)

Q: Can BAT54CWFILM replace BAS40-05W in any application?

A: BAT54CWFILM is electrically compatible with BAS40-05W for applications requiring current capacity up to 300 mA per diode. Both parts share identical reverse voltage (40 V), diode configuration (1 Pair Common Cathode), and package type (SC-70, SOT-323). Substitution is valid when application current does not exceed 300 mA and thermal operating conditions fall within −40°C to 150°C.

Q: Can SDMG0340LC-7-F replace BAS40-05W in any application?

A: SDMG0340LC-7-F is electrically compatible with BAS40-05W for applications requiring current capacity up to 30 mA per diode. Both parts share identical reverse voltage (40 V), diode configuration (1 Pair Common Cathode), and package type (SC-70, SOT-323). Substitution is valid when application current does not exceed 30 mA and thermal operating conditions fall within −40°C to 125°C.

Q: What are the key differences between these three parts?

A: The primary differences are current-handling capacity and operating temperature ranges. BAS40-05W supports 120 mA per diode with junction temperature to 150°C. BAT54CWFILM supports 300 mA per diode with junction temperature range −40°C to 150°C. SDMG0340LC-7-F supports 30 mA per diode with junction temperature range −40°C to 125°C. All three maintain identical 40 V reverse voltage rating and SC-70, SOT-323 packaging.

Q: Are all three parts in the same package?

A: Yes. BAS40-05W, BAT54CWFILM, and SDMG0340LC-7-F are all housed in SC-70, SOT-323 surface mount packages. Pin-to-pin compatibility is maintained across all three parts.

Q: What compliance certifications apply to these substitute parts?

A: BAT54CWFILM carries RoHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity level. SDMG0340LC-7-F carries RoHS3 compliance, REACH Unaffected status, and MSL 1 (Unlimited) moisture sensitivity level. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0070.

Q: Can I use BAS40-05W in an application designed for SDMG0340LC-7-F?

A: Yes. BAS40-05W supports higher current capacity (120 mA versus 30 mA per diode) and identical reverse voltage (40 V). The part is compatible with applications designed for SDMG0340LC-7-F when thermal operating conditions remain within BAS40-05W limits (junction temperature to 150°C).

Q: What is the forward voltage difference between these parts?

A: Forward voltage characteristics differ across the three parts. BAS40-05W specifies 1 V maximum at 40 mA. BAT54CWFILM specifies 900 mV maximum at 100 mA. SDMG0340LC-7-F specifies 370 mV maximum at 1 mA. Forward voltage varies with current level and must be evaluated within specific application operating conditions.