DB2U31400L Equivalent & Substitute Parts

Part Overview

The DB2U31400L is a Schottky diode manufactured by Panasonic Electronic Components, rated for 30 V DC reverse voltage and 30 mA average rectified current in a surface mount USSMINI2-F2-B package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain functional compatibility within the specified electrical and mechanical parameters while accommodating modern component availability and manufacturing status.

Substiute Parts

DB2U31400L

Panasonic Electronic ComponentsIn Stock: 178428DB2U31400L Datasheet

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BAS140WE6327HTSA1

Infineon TechnologiesIn Stock: 2371BAS140WE6327HTSA1 Datasheet

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BAT54L,315

NXP SemiconductorsIn Stock: 3410BAT54L,315 Datasheet

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RB530CM-30T2R

Rohm SemiconductorIn Stock: 49892RB530CM-30T2R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DB2U31400L are selected based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Technology: Schottky diode
• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 30 V
• Current - Average Rectified (Io): Equal to or greater than 30 mA
• Mounting Type: Surface Mount
• Speed Classification: Small Signal ≤ 200mA (Io), Any Speed

Secondary Compatibility Considerations:

• Package / Case: SOD-923 or equivalent surface mount packages
• Moisture Sensitivity Level: MSL 1 (Unlimited)
• Operating Temperature Range: Capable of supporting junction temperatures up to 125°C minimum

The three substitute parts identified—RB530CM-30T2R, BAS140WE6327HTSA1, and BAT54L,315—satisfy the primary compatibility criteria. Each part maintains Schottky technology, meets or exceeds the voltage and current ratings, and operates within the required temperature range. Variations in package designation (SOD-923, SOD-323, SOD-882) reflect different physical form factors while maintaining electrical equivalence for the specified application parameters.

Parameter Comparison

Engineering Selection Recommendations

RB530CM-30T2R (Rohm Semiconductor)

The RB530CM-30T2R provides the closest electrical and mechanical match to the DB2U31400L. Both components share identical voltage ratings (30 V) and package designation (SOD-923), with the RB530CM-30T2R offering higher current capacity (100 mA versus 30 mA). The part is active in production status with RoHS3 compliance and REACH unaffected certification. Operating temperature range extends to 150°C, exceeding the DB2U31400L specification. This substitute is suitable for direct replacement in applications where the PCB layout accommodates the SOD-923 package footprint.

BAS140WE6327HTSA1 (Infineon Technologies)

The BAS140WE6327HTSA1 exceeds the DB2U31400L specifications with 40 V reverse voltage rating and 120 mA current capacity. The component utilizes SOD-323 package, requiring PCB layout modification compared to the original SOD-923 footprint. This part is active in production with RoHS3 compliance and REACH unaffected status. The higher voltage rating provides design margin for applications subject to transient overvoltage conditions. Reverse recovery time of 100 ps indicates faster switching characteristics than the DB2U31400L.

BAT54L,315 (NXP Semiconductors)

The BAT54L,315 maintains the 30 V voltage rating of the DB2U31400L while providing significantly higher current capacity (200 mA). The component uses SOD-882 package, requiring PCB layout modification. This part is active in production with REACH unaffected certification. Operating temperature extends to 150°C. The higher current rating accommodates applications with increased power dissipation requirements.

All three substitute parts maintain MSL 1 (Unlimited) moisture sensitivity classification, ensuring compatibility with standard handling and storage procedures. Selection between substitutes depends on specific application requirements regarding current capacity, package footprint constraints, and voltage margin requirements.

Frequently Asked Questions (FAQ)

Q: Can the RB530CM-30T2R directly replace the DB2U31400L without PCB modification?

A: Yes. The RB530CM-30T2R shares the SOD-923 package designation with the DB2U31400L, enabling direct footprint compatibility. Both components are surface mount devices with identical package geometry. No PCB layout changes are required.

Q: What is the primary difference between the BAS140WE6327HTSA1 and the DB2U31400L?

A: The BAS140WE6327HTSA1 has a higher reverse voltage rating (40 V versus 30 V) and higher current capacity (120 mA versus 30 mA). The package differs (SOD-323 versus SOD-923), requiring PCB footprint modification. Forward voltage characteristics are comparable at 1 V.

Q: Is the BAT54L,315 suitable for applications requiring higher current than the DB2U31400L?

A: Yes. The BAT54L,315 is rated for 200 mA average rectified current, providing significantly higher capacity than the DB2U31400L (30 mA). The 30 V reverse voltage rating matches the original specification. Package modification (SOD-882) is required.

Q: Do all substitute parts meet the same moisture sensitivity requirements as the DB2U31400L?

A: Yes. All three substitute parts maintain MSL 1 (Unlimited) classification, identical to the DB2U31400L. Standard moisture control procedures apply during handling and storage.

Q: What is the impact of package differences on circuit design?

A: Package differences (SOD-923, SOD-323, SOD-882) affect PCB footprint layout and component placement. The RB530CM-30T2R maintains SOD-923 compatibility with the original design. The BAS140WE6327HTSA1 and BAT54L,315 require PCB layout modifications to accommodate their respective package geometries. Electrical performance remains equivalent within the specified parameters.

Q: Are all substitute parts compliant with current regulatory standards?

A: The RB530CM-30T2R and BAS140WE6327HTSA1 carry RoHS3 compliance certification. All three parts are REACH unaffected. The DB2U31400L, being obsolete, may not carry current compliance certifications. Verification of regulatory requirements for specific applications is necessary.

Q: Can the BAS140WE6327HTSA1 be used in applications designed for 30 V operation?

A: Yes. The BAS140WE6327HTSA1 is rated for 40 V reverse voltage, which exceeds the 30 V requirement. The component operates safely in 30 V applications with additional voltage margin. Forward voltage characteristics are comparable to the DB2U31400L at rated current levels.

Q: What is the significance of reverse recovery time differences between these parts?

A: The DB2U31400L specifies 1 ns reverse recovery time, while the BAS140WE6327HTSA1 specifies 100 ps. Faster recovery time in the BAS140WE6327HTSA1 indicates reduced switching transients and improved high-frequency performance. For applications operating below 200 mA, both specifications satisfy small signal diode requirements.