BAT30FILM Equivalent & Substitute Parts

Part Overview

The BAT30FILM is a Schottky diode manufactured by STMicroelectronics, rated for 30V DC reverse voltage and 300mA average rectified current in a surface mount SOT-23-3 package. This component is classified as obsolete, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement needs. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with modified parameters within acceptable application ranges.

Substiute Parts

BAT30FILM

STMicroelectronicsIn Stock: 12973BAT30FILM Datasheet

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BAT30KFILM

STMicroelectronicsIn Stock: 6985BAT30KFILM Datasheet

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BAT54-7-F

Diodes IncorporatedIn Stock: 443299BAT54-7-F Datasheet

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BAT54ATA

Diodes IncorporatedIn Stock: 145406BAT54ATA Datasheet

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BAT754,215

Nexperia USA Inc.In Stock: 8711BAT754,215 Datasheet

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PMEG3005ET,215

Nexperia USA Inc.In Stock: 5402PMEG3005ET,215 Datasheet

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PMEG3010ET,215

Nexperia USA Inc.In Stock: 6419PMEG3010ET,215 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT30FILM is determined by the following critical parameters: voltage rating (30V DC reverse), current capacity, forward voltage characteristics, package compatibility, and thermal specifications. Parts are grouped into two categories based on substitution suitability:

Category 1: Direct Equivalent (Identical Electrical and Mechanical Specifications)

• BAT30KFILM: Maintains 30V, 300mA, 530mV forward voltage, and fast recovery speed characteristics. Differs only in package format (SOD-523 vs. SOT-23-3) and product status (Active vs. Obsolete).

Category 2: Functional Substitutes (Modified Current Ratings with Compatible Voltage and Package)

• BAT54-7-F, BAT54ATA, BAT754,215: Rated for 30V reverse voltage with reduced current capacity (200mA). These parts maintain SOT-23-3 package compatibility and Schottky technology but feature different forward voltage and leakage characteristics.
• PMEG3005ET,215: Rated for 30V reverse voltage with increased current capacity (500mA). Maintains fast recovery speed and SOT-23-3 package compatibility.
• PMEG3010ET,215: Rated for 30V reverse voltage with 1A current capacity. Maintains fast recovery speed and SOT-23-3 package compatibility.

Substitution logic is based on maintaining the 30V voltage rating as a non-negotiable parameter. Current rating modifications are acceptable when application requirements permit. Package compatibility (SOT-23-3 / TO-236-3 / SC-59) is maintained across all listed substitutes.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): BAT30KFILM is the primary equivalent for BAT30FILM. Both parts maintain identical electrical characteristics (30V, 300mA, 530mV forward voltage, fast recovery speed) and maximum junction temperature (150°C). BAT30KFILM holds Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating. The only distinction is package format: BAT30KFILM uses SOD-523 packaging versus the original SOT-23-3. This substitution is suitable when PCB layout accommodates the SOD-523 footprint.

For Current Reduction Applications (200mA Maximum): BAT54-7-F, BAT54ATA, and BAT754,215 are suitable when application requirements permit operation at 200mA or below. All three maintain 30V voltage rating and SOT-23-3 package compatibility. BAT754,215 (Nexperia) includes automotive qualification (AEC-Q100) and is recommended for automotive applications. BAT54-7-F (Diodes Incorporated) offers the lowest forward voltage at 800mV @ 100mA among this group. All three parts hold Active product status and ROHS3 compliance.

For Current Increase Applications (500mA or 1A): PMEG3005ET,215 and PMEG3010ET,215 (Nexperia) provide higher current capacity while maintaining 30V voltage rating, fast recovery speed characteristics, and SOT-23-3 package compatibility. PMEG3010ET,215 includes automotive qualification (AEC-Q100). Both parts maintain 150°C maximum junction temperature and ROHS3 compliance. PMEG3005ET,215 operates at 500mA with 430mV forward voltage. PMEG3010ET,215 operates at 1A with 560mV forward voltage.

All substitute parts listed maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and REACH unaffected status, consistent with the original BAT30FILM specifications.

Frequently Asked Questions (FAQ)

Q: Can BAT30KFILM directly replace BAT30FILM in existing PCB designs? A: BAT30KFILM maintains identical electrical specifications (30V, 300mA, 530mV forward voltage, fast recovery speed) and thermal rating (150°C). However, BAT30KFILM uses SOD-523 packaging while BAT30FILM uses SOT-23-3. Direct PCB replacement requires footprint compatibility. If the PCB is designed for SOT-23-3, BAT30KFILM cannot be used without layout modification.

Q: What is the difference between fast recovery and small signal speed classifications? A: Fast recovery diodes (≤ 500ns, > 200mA) are optimized for applications requiring rapid switching at higher current levels. Small signal diodes (≤ 200mA, any speed) are designed for lower current applications and may have different recovery characteristics. BAT30FILM uses fast recovery technology. Substitutes BAT54-7-F, BAT54ATA, and BAT754,215 use small signal classification, suitable only for applications operating at 200mA or below.

Q: Can I use PMEG3005ET,215 or PMEG3010ET,215 as direct replacements for BAT30FILM? A: These parts maintain the 30V voltage rating, fast recovery speed, SOT-23-3 package compatibility, and 150°C junction temperature. However, they feature higher current ratings (500mA and 1A respectively) and different forward voltage characteristics (430mV @ 500mA and 560mV @ 1A). These substitutes are suitable when application requirements permit higher current capacity. They are not direct replacements but functional alternatives for designs requiring increased current handling.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts (BAT30KFILM, BAT54-7-F, BAT54ATA, BAT754,215, PMEG3005ET,215, PMEG3010ET,215) maintain ROHS3 compliance, consistent with BAT30FILM specifications.

Q: Which substitute parts include automotive qualification? A: BAT754,215 and PMEG3010ET,215 include AEC-Q100 automotive qualification. These parts are suitable for automotive applications requiring qualified components. Other substitutes do not carry automotive qualification.

Q: What is the impact of forward voltage differences among substitute parts? A: Forward voltage affects power dissipation and circuit performance. BAT30FILM operates at 530mV @ 300mA. Substitutes vary: PMEG3005ET,215 operates at 430mV @ 500mA (lower dissipation at higher current), while BAT54ATA operates at 1000mV @ 100mA (higher dissipation at lower current). Selection depends on application power budget and thermal constraints.

Q: Can BAT54ATA be used as a substitute despite being a diode array? A: BAT54ATA is configured as a 1-pair common anode diode array in SOT-23-3 package. While it maintains 30V voltage rating and SOT-23-3 package compatibility, its array configuration and reduced current rating (200mA per diode) limit substitution to applications where the common anode configuration is acceptable and current requirements do not exceed 200mA.