BAS40W-05-7-F Equivalent & Substitute Parts

Part Overview

The BAS40W-05-7-F is a Schottky diode array manufactured by Diodes Incorporated, configured as 1 pair common cathode with a maximum reverse voltage of 40 V and average rectified current of 200 mA per diode. The device is packaged in SC-70, SOT-323 surface mount format and is classified as Active product status with ROHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within specified parameter ranges.

Substiute Parts

BAS40W-05-7-F

Diodes IncorporatedIn Stock: 17410BAS40W-05-7-F Datasheet

Current PartRFQ

BAS40-05-TP

Micro Commercial CoIn Stock: 3607BAS40-05-TP Datasheet

MFR RecommendedRFQ

BAS40-05W,115

NXP SemiconductorsIn Stock: 295248BAS40-05W,115 Datasheet

MFR RecommendedRFQ

BAS4005WH6327XTSA1

Infineon TechnologiesIn Stock: 71833BAS4005WH6327XTSA1 Datasheet

MFR RecommendedRFQ

BAT54CLT1G

onsemiIn Stock: 206097BAT54CLT1G Datasheet

MFR RecommendedRFQ

BAT6405WH6327XTSA1

Infineon TechnologiesIn Stock: 4381BAT6405WH6327XTSA1 Datasheet

MFR RecommendedRFQ

BAT854CW,115

Nexperia USA Inc.In Stock: 429134BAT854CW,115 Datasheet

MFR RecommendedRFQ

BAT854CW,135

Nexperia USA Inc.In Stock: 37897BAT854CW,135 Datasheet

MFR RecommendedRFQ

RB450FT106

Rohm SemiconductorIn Stock: 2294RB450FT106 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS40W-05-7-F is determined by the following critical parameters:

Primary Substitution Criteria:

• Diode configuration must remain 1 pair common cathode
• Technology must be Schottky
• Maximum reverse voltage (Vr) must be ≥ 40 V
• Average rectified current (Io) per diode must be ≥ 200 mA
• Mounting type must be surface mount
• RoHS3 compliance required

Secondary Compatibility Factors:

• Package format: SC-70, SOT-323 preferred; SOT-23-3 acceptable with PCB layout verification
• Operating temperature range: -55°C to 125°C minimum
• Forward voltage (Vf) and reverse leakage characteristics within acceptable design margins
• Moisture sensitivity level MSL 1 required

Substitute parts are grouped into three categories based on electrical performance alignment:

Category A - Full Electrical Equivalents (40 V, 200 mA): Parts maintaining identical voltage and current ratings with SC-70, SOT-323 packaging.

Category B - Reduced Current Rating (40 V, 120 mA): Parts with lower average rectified current but same voltage rating; suitable for applications with reduced current requirements.

Category C - Voltage Derating (30 V, 200 mA): Parts with reduced maximum reverse voltage; suitable only for applications with maximum operating voltage below 30 V.

Category D - Enhanced Current Rating (40 V, 250 mA): Parts with higher current capacity; backward compatible for standard 200 mA applications.

Parameter Comparison

Engineering Selection Recommendations

Category A - Full Electrical Equivalents (Recommended Primary Substitutes)

BAS40-05-TP (Micro Commercial Co) and BAT854CW,115 / BAT854CW,135 (Nexperia USA Inc.) provide complete electrical equivalence to the BAS40W-05-7-F with identical 40 V reverse voltage and 200 mA average rectified current ratings. BAS40-05-TP maintains identical forward voltage characteristics and reverse recovery time. BAT854CW variants offer automotive-grade qualification (AEC-Q100) with improved forward voltage performance (550 mV @ 100 mA vs. 1 V @ 40 mA) and are suitable for applications requiring enhanced reliability. Package compatibility: BAS40-05-TP uses SOT-23-3 format requiring PCB layout verification; BAT854CW variants maintain SC-70, SOT-323 format with direct pin compatibility.

Category B - Reduced Current Rating (Conditional Substitutes)

BAS40-05W,115 (NXP Semiconductors) and BAS4005WH6327XTSA1 (Infineon Technologies) operate at 40 V reverse voltage with reduced 120 mA average rectified current. These parts are suitable only for applications with maximum current requirements not exceeding 120 mA per diode. BAS4005WH6327XTSA1 provides automotive-grade qualification (AEC-Q101) with superior reverse recovery time (100 ps) and lower reverse leakage (1 µA @ 30 V). Both maintain SC-70, SOT-323 packaging with direct mechanical compatibility.

Category C - Voltage Derating (Limited Substitutes)

BAT54CLT1G (onsemi) maintains 200 mA average rectified current with reduced 30 V maximum reverse voltage. This part is suitable only for applications with maximum operating voltage not exceeding 30 V. Forward voltage performance is improved (800 mV @ 100 mA). Package format is SOT-23-3, requiring PCB layout verification. Operating temperature range matches the primary part (-55°C to 125°C).

Category D - Enhanced Current Rating (Backward Compatible)

BAT6405WH6327XTSA1 (Infineon Technologies) provides 40 V reverse voltage with enhanced 250 mA average rectified current capacity. This part is backward compatible for standard 200 mA applications and offers automotive-grade qualification (AEC-Q101). Forward voltage is improved (750 mV @ 100 mA). SC-70, SOT-323 packaging ensures direct mechanical compatibility.

Reduced Current Rating (Not Recommended)

RB450FT106 (Rohm Semiconductor) operates at 40 V with only 100 mA average rectified current, providing insufficient current capacity for standard 200 mA applications. This part is not suitable as a substitute for the BAS40W-05-7-F.

Compliance and Certification Status

All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. Automotive-grade parts (BAS4005WH6327XTSA1, BAT6405WH6327XTSA1, BAT854CW,115, BAT854CW,135) carry AEC-Q100 or AEC-Q101 qualification and are suitable for automotive and high-reliability applications. Commercial-grade parts (BAS40-05-TP, BAS40-05W,115, BAT54CLT1G, RB450FT106) are suitable for standard industrial and consumer applications.

Frequently Asked Questions (FAQ)

Q: Can BAS40-05-TP replace BAS40W-05-7-F directly on the PCB?

A: BAS40-05-TP provides identical electrical performance (40 V, 200 mA, 5 ns recovery time) but uses SOT-23-3 (TO-236-3) packaging instead of SC-70, SOT-323. Pin configuration differs; PCB layout and footprint verification is required before substitution.

Q: What is the difference between BAS40-05W,115 and BAS40W-05-7-F?

A: BAS40-05W,115 operates at reduced 120 mA average rectified current compared to 200 mA for BAS40W-05-7-F. Both maintain 40 V reverse voltage and SC-70, SOT-323 packaging. Substitution is valid only for applications with maximum current requirements not exceeding 120 mA per diode.

Q: Are automotive-grade parts (BAT854CW, BAS4005WH6327XTSA1) suitable for commercial applications?

A: Yes. Automotive-grade parts with AEC-Q100 or AEC-Q101 qualification exceed commercial-grade requirements and are suitable for any application requiring the BAS40W-05-7-F. Enhanced reliability and tighter specifications provide additional design margin.

Q: Why does BAT54CLT1G have a lower maximum reverse voltage (30 V vs. 40 V)?

A: BAT54CLT1G is designed for lower voltage applications. Substitution is valid only when the application's maximum operating voltage does not exceed 30 V. Using this part in 40 V applications risks device failure.

Q: Can BAT6405WH6327XTSA1 be used as a direct replacement?

A: Yes. BAT6405WH6327XTSA1 provides 40 V reverse voltage with enhanced 250 mA current capacity, making it backward compatible for 200 mA applications. SC-70, SOT-323 packaging ensures direct pin compatibility. Improved forward voltage (750 mV @ 100 mA) may reduce power dissipation.

Q: What is the significance of reverse recovery time (trr) differences?

A: Reverse recovery time affects switching speed and high-frequency performance. BAS40W-05-7-F specifies 5 ns trr. BAS4005WH6327XTSA1 offers superior 100 ps trr for faster switching applications. RB450FT106 does not specify trr but is rated for small signal applications. Substitution with faster recovery devices improves performance; slower devices may not meet high-frequency requirements.

Q: Are there package compatibility issues between SOT-323 and SOT-23-3?

A: Yes. SOT-323 (SC-70) and SOT-23-3 (TO-236-3) have different physical dimensions and pin spacing. Direct PCB substitution is not possible without footprint modification. Verify pin assignment and mechanical clearance before substitution.

Q: Which substitute part offers the best overall performance?

A: BAT854CW,115 and BAT854CW,135 (Nexperia) provide full electrical equivalence (40 V, 200 mA) with automotive-grade AEC-Q100 qualification, improved forward voltage (550 mV @ 100 mA), and SC-70, SOT-323 direct compatibility. BAS4005WH6327XTSA1 (Infineon) offers automotive-grade AEC-Q101 with superior reverse recovery time (100 ps) but at reduced 120 mA current rating.

Q: Is moisture sensitivity level (MSL) a critical substitution parameter?

A: All listed substitute parts maintain MSL 1 (Unlimited), matching the BAS40W-05-7-F. This ensures equivalent handling, storage, and reflow requirements. No additional moisture control measures are required during substitution.

Q: Can RB450FT106 be used in any application?

A: RB450FT106 is limited to applications requiring maximum 100 mA average rectified current. For standard 200 mA applications, this part provides insufficient current capacity and is not suitable as a substitute for BAS40W-05-7-F.