BAT46SWFILM Equivalent & Substitute Parts

Part Overview

The BAT46SWFILM is a Schottky diode array manufactured by STMicroelectronics, configured as 1 pair series connection with a maximum reverse voltage rating of 100 V and average rectified current of 150 mA per diode. The device is packaged in SC-70, SOT-323 surface mount configuration and is classified as obsolete product status.

Due to its obsolete classification, sourcing new units from original manufacturing channels is limited. Equivalent and substitute parts are available to maintain design continuity and ensure supply chain reliability for applications requiring Schottky diode array functionality within the specified electrical parameters.

Substiute Parts

BAT46SWFILM

STMicroelectronicsIn Stock: 872BAT46SWFILM Datasheet

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BAT46ZFILM

STMicroelectronicsIn Stock: 45262BAT46ZFILM Datasheet

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BAV199W,115

Nexperia USA Inc.In Stock: 115225BAV199W,115 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BAT46SWFILM is determined by the following critical parameters:

Primary Substitution Criteria:

• Diode configuration (1 pair series connection)
• Technology type (Schottky)
• Voltage rating (100 V minimum reverse voltage)
• Current rating (150 mA minimum average rectified current per diode)
• Surface mount packaging compatibility
• Operating temperature range (150°C maximum junction temperature)
• Compliance certifications (RoHS3, REACH Unaffected)

Substitute Parts Identified:

BAT46ZFILM (STMicroelectronics): Meets all primary electrical parameters with identical Schottky technology, 100 V reverse voltage, and 150 mA current rating. Differs in package type (SOD-123 versus SOT-323) and product status (active). Forward voltage specification differs at different test conditions.

BAV199W,115 (Nexperia USA Inc.): Maintains 1 pair series connection configuration and SOT-323 package compatibility. Operates at reduced voltage rating (75 V) and current rating (110 mA), with standard diode technology rather than Schottky. Suitable for applications with lower voltage and current requirements.

Parameter Comparison

Engineering Selection Recommendations

BAT46ZFILM Selection Criteria:

BAT46ZFILM is the primary electrical equivalent, maintaining identical Schottky technology, 100 V reverse voltage rating, and 150 mA current capacity. Both parts are ROHS3 compliant and carry unlimited moisture sensitivity classification. The primary distinction is packaging format: BAT46ZFILM uses SOD-123 package versus the BAT46SWFILM SOT-323 package. This substitute is suitable for applications where PCB layout accommodates SOD-123 footprint. BAT46ZFILM carries active product status, ensuring long-term availability and supply chain stability.

BAV199W,115 Selection Criteria:

BAV199W,115 maintains SOT-323 package compatibility and 1 pair series connection configuration. This substitute operates at reduced electrical ratings: 75 V maximum reverse voltage and 110 mA average rectified current per diode. BAV199W,115 uses standard diode technology rather than Schottky, resulting in higher forward voltage characteristics. This substitute is applicable only to applications with voltage and current requirements below the specified maximums. BAV199W,115 carries active product status from Nexperia USA Inc. and maintains ROHS3 compliance.

Compliance Considerations:

All identified substitutes maintain ROHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity classification, ensuring regulatory alignment with the original BAT46SWFILM specification.

Frequently Asked Questions (FAQ)

Q: Can BAT46ZFILM directly replace BAT46SWFILM in existing PCB designs?

A: BAT46ZFILM provides electrical equivalence but uses SOD-123 package instead of SOT-323. Direct PCB replacement requires footprint modification. Electrical performance is equivalent for Schottky diode array applications.

Q: What are the key differences between BAT46SWFILM and BAV199W,115?

A: BAT46SWFILM uses Schottky technology with 100 V / 150 mA ratings. BAV199W,115 uses standard diode technology with 75 V / 110 mA ratings. Both maintain SOT-323 packaging and 1 pair series connection configuration. BAV199W,115 is suitable only for applications with lower voltage and current requirements.

Q: Is BAV199W,115 suitable for applications designed for BAT46SWFILM?

A: BAV199W,115 is suitable only if the application operates below 75 V reverse voltage and 110 mA average rectified current per diode. The standard diode technology produces higher forward voltage than Schottky technology, affecting circuit performance characteristics.

Q: What is the impact of package differences between BAT46SWFILM and BAT46ZFILM?

A: BAT46SWFILM uses SC-70, SOT-323 package; BAT46ZFILM uses SOD-123 package. Both are surface mount configurations. PCB layout and footprint design must accommodate the selected package type. Electrical performance remains equivalent.

Q: Are all substitute parts RoHS compliant?

A: Yes. BAT46ZFILM and BAV199W,115 are both ROHS3 compliant, matching the original BAT46SWFILM specification. All parts carry REACH unaffected status.

Q: What is the moisture sensitivity classification for these diodes?

A: All three parts carry Moisture Sensitivity Level (MSL) 1, classified as unlimited. This indicates no moisture sensitivity restrictions for storage, handling, or reflow processes.