BAT54SWQ-7-F Equivalent & Substitute Parts

Part Overview

The BAT54SWQ-7-F is a Schottky diode array manufactured by Diodes Incorporated, configured as 1 pair series connection rated for 30 V DC reverse voltage and 200 mA average rectified current per diode. The device is packaged in SC-70, SOT-323 surface mount configuration and is qualified to AEC-Q101 automotive standards. This part is currently active in production with 3000 pieces in stock.

Substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or when equivalent electrical and mechanical specifications are required for system compatibility.

Substiute Parts

BAT54SWQ-7-F

Diodes IncorporatedIn Stock: 3014BAT54SWQ-7-F Datasheet

Current PartRFQ

BAT54SW-7-F

Diodes IncorporatedIn Stock: 65488BAT54SW-7-F Datasheet

Parametric EquivalentRFQ

NSVBAT54SWT1G

onsemiIn Stock: 9379NSVBAT54SWT1G Datasheet

DirectRFQ

BAT54SW-AU_R1_000A1

Panjit International Inc.In Stock: 9778BAT54SW-AU_R1_000A1 Datasheet

MFR RecommendedRFQ

CDBT-54S-G

Comchip TechnologyIn Stock: 24846CDBT-54S-G Datasheet

MFR RecommendedRFQ

BAT54SWT-TP

Micro Commercial CoIn Stock: 46422BAT54SWT-TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BAT54SWQ-7-F are classified based on electrical and mechanical parameter compatibility. The critical parameters that determine substitution eligibility are:

Electrical Parameters:

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io) (per Diode): 200 mA (DC)
• Diode Configuration: 1 Pair Series Connection
• Technology: Schottky
• Reverse Recovery Time (trr): 5 ns
• Current - Reverse Leakage @ Vr: 2 µA

Mechanical Parameters:

• Mounting Type: Surface Mount
• Package / Case: SC-70, SOT-323 (or equivalent package designations)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into the following categories:

Parametric Equivalents: Parts with identical electrical specifications and SC-70/SOT-323 packaging. These include BAT54SW-7-F (Diodes Incorporated) and BAT54SWT-TP (Micro Commercial Co).

Direct Manufacturer Equivalents: Parts from alternative manufacturers meeting all electrical specifications with SC-70/SOT-323 packaging. This includes NSVBAT54SWT1G (onsemi).

MFR Recommended Equivalents: Parts qualified to automotive standards (AEC-Q101) with equivalent electrical performance. These include BAT54SW-AU_R1_000A1 (Panjit International Inc.).

Package Variant Equivalents: Parts with identical electrical specifications but alternative surface mount packages. CDBT-54S-G (Comchip Technology) uses TO-236-3, SC-59, SOT-23-3 packaging.

Parameter Comparison

Engineering Selection Recommendations

BAT54SW-7-F (Diodes Incorporated): This part is a parametric equivalent with identical electrical specifications and SC-70, SOT-323 packaging. It maintains the same manufacturer as the primary part and carries ROHS3 compliance. Inventory availability is significantly higher at 65,400 pieces. This substitute is suitable for direct replacement in applications where Diodes Incorporated sourcing is preferred.

BAT54SWT-TP (Micro Commercial Co): This part meets all electrical specifications with SC-70, SOT-323 packaging and ROHS3 compliance. Operating temperature range is -55 to 125°C. Inventory availability is 46,388 pieces. This substitute is suitable for applications where multi-source qualification is acceptable.

NSVBAT54SWT1G (onsemi): This part meets all electrical specifications with SC-70, SOT-323 packaging and ROHS3 compliance. Forward voltage is specified at 800 mV @ 100 mA, which is lower than the main part. Operating temperature range extends to 150°C maximum. Inventory availability is 9,300 pieces. This substitute is suitable for applications requiring extended temperature performance.

BAT54SW-AU_R1_000A1 (Panjit International Inc.): This part is qualified to AEC-Q101 automotive standards, matching the primary part's automotive grade. Forward voltage is specified at 600 mV @ 100 mA. Operating temperature range is -55 to 125°C. Inventory availability is 9,682 pieces. This substitute is suitable for automotive applications requiring AEC-Q101 qualification.

CDBT-54S-G (Comchip Technology): This part meets all electrical specifications but uses TO-236-3, SC-59, SOT-23-3 packaging instead of SC-70, SOT-323. This package variant requires PCB layout modification and is not a direct pin-compatible substitute. Inventory availability is 24,740 pieces. This substitute is suitable only when PCB redesign is acceptable.

Frequently Asked Questions (FAQ)

Q: Can BAT54SW-7-F be used as a direct replacement for BAT54SWQ-7-F?

A: Yes. BAT54SW-7-F is a parametric equivalent with identical electrical specifications (30 V reverse voltage, 200 mA current rating, 1 V forward voltage @ 100 mA, 5 ns reverse recovery time) and identical SC-70, SOT-323 packaging. Both parts are manufactured by Diodes Incorporated and are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between BAT54SWT-TP and BAT54SWQ-7-F?

A: Both parts share identical electrical specifications and SC-70, SOT-323 packaging. The primary difference is the manufacturer: BAT54SWT-TP is manufactured by Micro Commercial Co, while BAT54SWQ-7-F is manufactured by Diodes Incorporated. Operating temperature range for BAT54SWT-TP is -55 to 125°C compared to -65 to 125°C for the main part.

Q: Is NSVBAT54SWT1G suitable for applications requiring the full -65°C lower temperature limit?

A: No. NSVBAT54SWT1G has an operating temperature range of -55 to 150°C, which does not include the -65°C lower limit of the BAT54SWQ-7-F. Applications requiring operation below -55°C must use parts with -65°C minimum temperature specification.

Q: Can CDBT-54S-G be used without PCB modification?

A: No. CDBT-54S-G uses TO-236-3, SC-59, SOT-23-3 packaging, which differs from the SC-70, SOT-323 package of BAT54SWQ-7-F. Pin-to-pin compatibility and PCB footprint are different, requiring PCB layout redesign.

Q: Which substitute parts are qualified to AEC-Q101 automotive standards?

A: BAT54SW-AU_R1_000A1 (Panjit International Inc.) is qualified to AEC-Q101, matching the automotive grade of the primary part BAT54SWQ-7-F. Other substitutes do not specify automotive qualification.

Q: What is the significance of forward voltage differences among substitute parts?

A: Forward voltage (Vf) affects power dissipation and circuit performance. BAT54SWQ-7-F specifies 1 V @ 100 mA. NSVBAT54SWT1G specifies 800 mV @ 100 mA (lower dissipation), and BAT54SW-AU_R1_000A1 specifies 600 mV @ 100 mA (lowest dissipation). Lower forward voltage reduces heat generation but may affect circuit biasing in sensitive applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (BAT54SW-7-F, NSVBAT54SWT1G, BAT54SW-AU_R1_000A1, CDBT-54S-G, and BAT54SWT-TP) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which substitute has the highest inventory availability?

A: BAT54SW-7-F has the highest inventory at 65,400 pieces, followed by BAT54SWT-TP at 46,388 pieces. The primary part BAT54SWQ-7-F has 3,000 pieces in stock.