BAT41AWFILM Equivalent & Substitute Parts

Part Overview

The BAT41AWFILM is a Schottky diode array manufactured by STMicroelectronics, configured as 1 pair common anode with a maximum reverse voltage rating of 100 V and average rectified current of 200 mA per diode. The device is packaged in SC-70, SOT-323 surface mount configuration and is supplied in Tape & Reel (TR) format.

The BAT41AWFILM is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and ongoing system support where the original part is no longer readily available through standard distribution channels.

Substiute Parts

BAT41AWFILM

STMicroelectronicsIn Stock: 4978BAT41AWFILM Datasheet

Current PartRFQ

BAT41KFILM

STMicroelectronicsIn Stock: 125236BAT41KFILM Datasheet

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BAT46AWFILM

STMicroelectronicsIn Stock: 6471BAT46AWFILM Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BAT41AWFILM are selected based on strict electrical and mechanical parameter compatibility. The following criteria determine valid substitution:

Primary Substitution Criteria:

• Schottky diode technology
• Maximum reverse voltage (Vr) of 100 V or greater
• Average rectified current (Io) of 200 mA or greater per diode
• Maximum forward voltage (Vf) at rated current compatible with circuit requirements
• Surface mount packaging
• Operating temperature range supporting 150°C maximum junction temperature
• RoHS3 compliance and MSL rating of 1

Acceptable Variations:

• Package form factor may differ (SOT-323 to SOD-523) provided pinout and electrical performance remain compatible
• Packaging format may differ (Tape & Reel to Cut Tape & Digi-Reel)
• Diode configuration may differ if electrical performance requirements are met
• Reverse leakage current specifications may vary within acceptable operating parameters

Parameter Comparison

Engineering Selection Recommendations

BAT41KFILM is an active product substitute with identical electrical specifications to the BAT41AWFILM. This part maintains 100 V reverse voltage rating, 200 mA average rectified current, and 1 V forward voltage at 200 mA. The primary difference is package form factor (SOD-523 versus SOT-323) and packaging format (Cut Tape & Digi-Reel versus Tape & Reel). This substitute is suitable for applications where the SOD-523 package footprint is compatible with circuit board design. RoHS3 compliance and MSL rating of 1 are maintained.

BAT46AWFILM is an active product substitute with the same diode configuration (1 pair common anode) and package type (SOT-323) as the BAT41AWFILM. This part maintains 100 V reverse voltage rating and surface mount SC-70 packaging. The average rectified current is rated at 150 mA per diode, which is lower than the 200 mA specification of the BAT41AWFILM. Forward voltage is specified at 450 mV @ 10 mA, differing from the 1 V @ 200 mA specification of the main part. Reverse leakage current is higher at 5 µA @ 75 V compared to 100 nA @ 50 V. This substitute is applicable in circuits where the reduced current rating and modified electrical characteristics are acceptable. RoHS3 compliance and MSL rating of 1 are maintained.

Both substitute parts are manufactured by STMicroelectronics and carry active product status, ensuring ongoing availability and support.

Frequently Asked Questions (FAQ)

Q: Can BAT41KFILM be used as a direct replacement for BAT41AWFILM?

A: BAT41KFILM provides electrical equivalence with identical voltage and current ratings. The primary consideration is package compatibility. BAT41KFILM uses SOD-523 package while BAT41AWFILM uses SOT-323 package. Circuit board layout and footprint design must accommodate the SOD-523 form factor. Packaging format differs (Cut Tape & Digi-Reel versus Tape & Reel), which may affect procurement and assembly processes.

Q: What are the limitations of BAT46AWFILM as a substitute?

A: BAT46AWFILM maintains the same package type (SOT-323) and diode configuration (1 pair common anode) as BAT41AWFILM. However, the average rectified current rating is 150 mA per diode, compared to 200 mA for BAT41AWFILM. Applications requiring the full 200 mA current capacity must verify that BAT46AWFILM meets circuit current requirements. Forward voltage and reverse leakage specifications also differ and must be evaluated against circuit design parameters.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. BAT41KFILM and BAT46AWFILM are both RoHS3 compliant with MSL rating of 1 (Unlimited), matching the compliance status of BAT41AWFILM.

Q: What is the significance of product status (Obsolete versus Active)?

A: BAT41AWFILM is classified as obsolete, indicating it is no longer in active production. BAT41KFILM and BAT46AWFILM are both active products, ensuring continued manufacturing, availability through distribution channels, and ongoing technical support from STMicroelectronics.

Q: How do reverse voltage and current ratings affect substitution?

A: Substitute parts must meet or exceed the reverse voltage and average rectified current specifications of the original part to ensure safe operation within circuit design margins. BAT41KFILM matches both specifications (100 V, 200 mA). BAT46AWFILM matches the voltage specification (100 V) but has a reduced current rating (150 mA), requiring circuit evaluation to confirm suitability.

Q: What packaging considerations apply to these substitutes?

A: BAT41AWFILM and BAT46AWFILM both use SOT-323 package in Tape & Reel format, providing direct packaging compatibility. BAT41KFILM uses SOD-523 package in Cut Tape & Digi-Reel format, requiring verification of circuit board footprint compatibility and potential adjustment to assembly processes.