MMBD1504 Equivalent & Substitute Parts

Part Overview

The MMBD1504 is a general-purpose diode array manufactured by onsemi, configured as a 1 Pair Common Cathode design rated for 200 V DC reverse voltage and 200 mA average rectified current per diode. The component is housed in a Surface Mount TO-236-3 (SC-59, SOT-23-3) package. The MMBD1504 is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs.

Substiute Parts

MMBD1504

onsemiIn Stock: 4236MMBD1504 Datasheet

Current PartRFQ

MMBD1504A

onsemiIn Stock: 44123MMBD1504A Datasheet

Parametric EquivalentRFQ

BAV23C-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 10291BAV23C-E3-08 Datasheet

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CMPD2003C TR TIN/LEAD

Central Semiconductor CorpIn Stock: 4047CMPD2003C TR TIN/LEAD Datasheet

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CMPD3003C TR PBFREE

Central Semiconductor CorpIn Stock: 29468CMPD3003C TR PBFREE Datasheet

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MMBD1504-TP

Micro Commercial CoIn Stock: 4965MMBD1504-TP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MMBD1504 is determined by the following critical parameters: diode configuration (1 Pair Common Cathode), DC reverse voltage rating (200 V maximum), average rectified current per diode (200 mA), forward voltage characteristics, reverse leakage current, maximum junction temperature (150°C), and Surface Mount SOT-23-3 package compatibility.

Substitute parts are grouped into two categories:

Parametric Equivalent: Parts that maintain identical electrical specifications across all critical parameters, including voltage rating, current rating, forward voltage, and reverse leakage characteristics. These parts are direct functional replacements with no circuit redesign required.

Similar Parts: Parts that share the same diode configuration, package type, and primary voltage/current ratings but may exhibit variations in secondary parameters such as forward voltage tolerance, reverse recovery time, reverse leakage current, or temperature range. These parts require circuit-level evaluation to confirm compatibility with specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

MMBD1504A (onsemi): This part is the direct parametric equivalent to the MMBD1504, maintaining identical electrical specifications across all critical parameters including 200 V reverse voltage, 200 mA current rating, 1.1 V forward voltage at 200 mA, and 10 nA reverse leakage current. The MMBD1504A is classified as Active and is ROHS3 Compliant. This part is the primary replacement for obsolete MMBD1504 applications.

BAV23C-E3-08 (Vishay General Semiconductor - Diodes Division): This part shares the same diode configuration, voltage rating, current rating, and SOT-23-3 package as the MMBD1504. The BAV23C-E3-08 exhibits a forward voltage of 1.25 V at 200 mA (compared to 1.1 V for the MMBD1504) and reverse leakage of 100 nA at 200 V (compared to 10 nA at 180 V for the MMBD1504). The BAV23C-E3-08 is classified as Fast Recovery with 50 ns reverse recovery time. This part is Active and ROHS3 Compliant.

CMPD2003C TR TIN/LEAD (Central Semiconductor Corp): This part maintains 200 V reverse voltage and 200 mA current rating with a forward voltage of 1.25 V at 200 mA and reverse leakage of 100 nA at 200 V. The CMPD2003C TR TIN/LEAD is classified as Active but is RoHS non-compliant. This part is suitable for applications where RoHS compliance is not required.

CMPD3003C TR PBFREE (Central Semiconductor Corp): This part is rated for 180 V reverse voltage (10 V lower than the MMBD1504) with 200 mA current rating. Forward voltage is specified as 1.15 V at 300 mA. The CMPD3003C TR PBFREE is classified as Active and ROHS3 Compliant. This part is suitable only for applications where the 180 V voltage rating is sufficient.

MMBD1504-TP (Micro Commercial Co): This part is rated for 180 V reverse voltage (10 V lower than the MMBD1504) with 200 mA current rating and forward voltage of 1.3 V at 200 mA. The MMBD1504-TP is classified as Active and ROHS3 Compliant with an operating temperature range of -55°C to 150°C. This part is suitable only for applications where the 180 V voltage rating is sufficient.

Frequently Asked Questions (FAQ)

Q: Can MMBD1504A be used as a direct replacement for MMBD1504?

A: Yes. The MMBD1504A maintains identical electrical specifications for all critical parameters: 200 V reverse voltage, 200 mA average rectified current per diode, 1.1 V forward voltage at 200 mA, and 10 nA reverse leakage current at 180 V. Both parts use the same SOT-23-3 package. The MMBD1504A is Active and ROHS3 Compliant.

Q: What are the differences between MMBD1504A and BAV23C-E3-08?

A: Both parts share the same 200 V reverse voltage rating, 200 mA current rating, and SOT-23-3 package. The BAV23C-E3-08 exhibits higher forward voltage (1.25 V versus 1.1 V at 200 mA) and higher reverse leakage current (100 nA versus 10 nA). The BAV23C-E3-08 is classified as Fast Recovery with 50 ns reverse recovery time, whereas the MMBD1504 is Small Signal. These differences may affect circuit performance in applications sensitive to forward voltage drop or leakage current.

Q: Can CMPD3003C TR PBFREE or MMBD1504-TP be used in place of MMBD1504?

A: These parts are rated for 180 V reverse voltage, which is 10 V lower than the MMBD1504's 200 V rating. Substitution is permissible only in applications where the maximum reverse voltage does not exceed 180 V. Circuit-level evaluation is required to confirm voltage margin adequacy.

Q: What is the significance of the SOT-23-3 package designation?

A: All substitute parts use the TO-236-3 (SC-59, SOT-23-3) Surface Mount package, which is physically and electrically compatible with the MMBD1504. This package designation ensures pin-for-pin compatibility and identical PCB footprint requirements.

Q: Are there RoHS compliance considerations for substitute selection?

A: The MMBD1504A, BAV23C-E3-08, CMPD3003C TR PBFREE, and MMBD1504-TP are all ROHS3 Compliant. The CMPD2003C TR TIN/LEAD is RoHS non-compliant. Selection depends on whether the application or end-use market requires RoHS compliance certification.

Q: How do forward voltage differences affect circuit design?

A: Forward voltage variations between substitute parts (ranging from 1.1 V to 1.3 V at 200 mA) directly impact voltage drop across the diode. In precision rectification or voltage-sensitive circuits, these differences may require circuit redesign or component selection based on specific forward voltage requirements.

Q: What is the difference between Small Signal and Fast Recovery diode classifications?

A: Small Signal diodes (MMBD1504, MMBD1504A, CMPD2003C, CMPD3003C, MMBD1504-TP) are optimized for low-current applications with any switching speed. Fast Recovery diodes (BAV23C-E3-08) feature reduced reverse recovery time (50 ns), making them suitable for higher-frequency switching applications. Selection depends on circuit switching frequency requirements.