BAR43C-TP Equivalent & Substitute Parts

Part Overview

The BAR43C-TP is a Schottky diode array manufactured by Micro Commercial Co, configured as 1 Pair Common Cathode with a maximum reverse voltage of 30 V and average rectified current of 200 mA per diode. The device is housed in a Surface Mount TO-236-3 (SOT-23-3) package and is currently Active in product status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, manufacturing discontinuation, or application-specific requirements within the allowed parameter specifications.

Substiute Parts

BAR43C-TP

Micro Commercial CoIn Stock: 1174BAR43C-TP Datasheet

Current PartRFQ

BAT54A,215

Nexperia USA Inc.In Stock: 4290BAT54A,215 Datasheet

SimilarRFQ

PMEG3010ET,215

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

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BAR43C-TP are qualified based on the following criteria:

Electrical Compatibility Parameters:

• Voltage - DC Reverse (Vr) (Max): Must equal or exceed 30 V
• Current - Average Rectified (Io): Must support 200 mA per diode minimum
• Technology: Schottky diode technology
• Operating Temperature - Junction: Must support 150°C maximum

Mechanical Compatibility Parameters:

• Mounting Type: Surface Mount
• Package / Case: TO-236-3, SC-59, SOT-23-3

Functional Considerations:

• Diode configuration (Common Cathode vs. Common Anode) determines circuit topology compatibility
• Forward voltage characteristics must be evaluated for specific application requirements
• Reverse leakage current specifications vary among substitutes and must be assessed for application sensitivity

The BAT54A,215 and PMEG3010ET,215 meet the core electrical and mechanical requirements. However, differences in diode configuration, current rating, and leakage characteristics require circuit-level evaluation for proper substitution.

Parameter Comparison

Engineering Selection Recommendations

BAT54A,215 (Nexperia USA Inc.): The BAT54A,215 maintains electrical parity with the BAR43C-TP across reverse voltage (30 V), current rating (200 mA), forward voltage (800 mV @ 100 mA), and reverse recovery time (5 ns). Both devices are Active in product status. The primary distinction is diode configuration: BAT54A,215 is Common Anode versus BAR43C-TP Common Cathode. This configuration difference requires circuit topology verification before substitution. The BAT54A,215 carries AEC-Q101 automotive qualification and ROHS3 compliance. Reverse leakage current is higher (2 µA @ 25 V versus 500 nA @ 25 V), which may impact applications with strict leakage specifications.

PMEG3010ET,215 (Nexperia USA Inc.): The PMEG3010ET,215 exceeds the current rating of the BAR43C-TP (1 A versus 200 mA) while maintaining the 30 V reverse voltage specification. This part is a single diode rather than a diode array, requiring different circuit implementation. Forward voltage is lower (560 mV @ 1 A), indicating improved efficiency at higher current levels. The PMEG3010ET,215 is classified as Fast Recovery (> 200 mA) rather than Small Signal, and carries AEC-Q100 automotive qualification with ROHS3 compliance. Reverse leakage current is significantly higher (150 µA @ 30 V), which may be unsuitable for low-leakage applications. This part is suitable for applications requiring higher current capacity within the same voltage class and package footprint.

Frequently Asked Questions (FAQ)

Q: Can BAT54A,215 directly replace BAR43C-TP in all applications?

A: BAT54A,215 and BAR43C-TP share identical electrical ratings (30 V, 200 mA, 800 mV Vf, 5 ns trr) and package form factor. However, BAT54A,215 is configured as Common Anode while BAR43C-TP is Common Cathode. Direct substitution requires circuit topology compatibility verification. The higher reverse leakage current (2 µA versus 500 nA) must be evaluated for applications sensitive to leakage.

Q: When is PMEG3010ET,215 appropriate as a substitute?

A: PMEG3010ET,215 is appropriate when the application requires higher current capacity (1 A versus 200 mA) within the same 30 V reverse voltage specification and SOT-23-3 package. This part is unsuitable for applications requiring low reverse leakage current or diode array configuration. Circuit redesign may be necessary due to single diode topology versus array configuration.

Q: What are the package compatibility considerations?

A: All three parts (BAR43C-TP, BAT54A,215, PMEG3010ET,215) use identical Surface Mount packaging: TO-236-3, SC-59, SOT-23-3. PCB footprint compatibility is maintained across all substitutes. Supplier device package designations differ (SOT-23 versus TO-236AB), but physical dimensions and pin assignments are equivalent.

Q: How do reverse leakage current differences affect substitution?

A: BAR43C-TP specifies 500 nA @ 25 V reverse leakage. BAT54A,215 specifies 2 µA @ 25 V (4× higher), and PMEG3010ET,215 specifies 150 µA @ 30 V (300× higher). Applications with strict leakage requirements, such as precision analog circuits or high-impedance sensing, must account for these differences. Higher leakage may introduce unacceptable error or noise.

Q: Are there compliance or qualification differences?

A: BAR43C-TP compliance status is not specified beyond REACH Unaffected. BAT54A,215 carries AEC-Q101 automotive qualification and ROHS3 compliance. PMEG3010ET,215 carries AEC-Q100 automotive qualification and ROHS3 compliance. Applications requiring automotive-grade components should specify BAT54A,215 or PMEG3010ET,215 accordingly.

Q: What is the difference between Common Cathode and Common Anode configuration?

A: Common Cathode (BAR43C-TP) connects both diode cathodes to a single pin, with anodes available separately. Common Anode (BAT54A,215) connects both diode anodes to a single pin, with cathodes available separately. Circuit topology determines which configuration is required. Substitution between these configurations requires circuit redesign.