DB3X316N0L Equivalent & Substitute Parts

Part Overview

The DB3X316N0L is a Schottky diode array manufactured by Panasonic Electronic Components, configured as a 1 Pair Common Cathode design rated for 30 V DC reverse voltage and 100 mA average rectified current per diode. The device is packaged in TO-236-3 (SC-59, SOT-23-3) surface mount format and is RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity rating.

This part is discontinued at DiGi Electronics. Equivalent and substitute parts are available from active manufacturers to support ongoing production and maintenance requirements. Substitutes must maintain electrical compatibility within the specified parameter ranges while accommodating minor performance variations inherent to different semiconductor technologies and manufacturing processes.

Substiute Parts

DB3X316N0L

Panasonic Electronic ComponentsIn Stock: 886DB3X316N0L Datasheet

Current PartRFQ

BAR43CFILM

STMicroelectronicsIn Stock: 38026BAR43CFILM Datasheet

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BAT54CTA

Diodes IncorporatedIn Stock: 5164BAT54CTA Datasheet

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RB425DFHT146

Rohm SemiconductorIn Stock: 2673RB425DFHT146 Datasheet

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RB425DT146

Rohm SemiconductorIn Stock: 17173RB425DT146 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DB3X316N0L is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Package / Case: TO-236-3, SC-59, SOT-23-3 (surface mount)
• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 30 V
• Current - Average Rectified (Io) (per Diode): Equal to or greater than 100 mA
• Mounting Type: Surface Mount

Acceptable Parameter Variations: Substitute parts may exhibit differences in forward voltage (Vf), reverse recovery time (trr), reverse leakage current, and maximum junction temperature, provided the device meets or exceeds the minimum electrical ratings of the original part. These variations reflect different manufacturing processes and semiconductor technologies while maintaining functional equivalence in circuit applications.

The following parts satisfy the mandatory compatibility criteria and are classified as direct substitutes or functional equivalents:

• BAR43CFILM (STMicroelectronics): Direct equivalent with improved performance characteristics
• BAT54CTA (Diodes Incorporated): Functional equivalent with higher current rating (200 mA)
• RB425DFHT146 (Rohm Semiconductor): Functional equivalent with higher voltage rating (40 V) and reduced current rating (50 mA)
• RB425DT146 (Rohm Semiconductor): Functional equivalent with higher voltage rating (40 V)

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: BAR43CFILM (STMicroelectronics)

BAR43CFILM is the recommended primary substitute for DB3X316N0L applications. This part maintains identical electrical ratings (30 V, 100 mA) and package format while offering improved performance characteristics including lower reverse leakage current (500 nA vs. 15 µA) and higher maximum junction temperature (150°C vs. 125°C). The device is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Inventory availability is substantial (37,919 pcs).

Secondary Substitute: BAT54CTA (Diodes Incorporated)

BAT54CTA is a functional equivalent suitable for applications where higher current capacity is beneficial. The device is rated for 200 mA average rectified current per diode, providing design margin above the 100 mA requirement of the original part. Electrical ratings match at 30 V reverse voltage. The part is in active production status with ROHS3 compliance. Inventory availability is adequate (5,101 pcs).

Tertiary Substitute: RB425DT146 (Rohm Semiconductor)

RB425DT146 is a functional equivalent with enhanced voltage rating (40 V vs. 30 V). This part maintains the 100 mA current rating and identical forward voltage characteristics (550 mV @ 100 mA) as the original DB3X316N0L. The device is in active production status with ROHS3 compliance and AEC-Q101 automotive qualification. Inventory availability is high (17,100 pcs).

Not Recommended: RB425DFHT146 (Rohm Semiconductor)

RB425DFHT146 is not recommended for new designs due to its "Not For New Designs" product status classification. Additionally, the 50 mA current rating is below the 100 mA requirement of the original part, limiting its applicability to designs with reduced current demands.

Frequently Asked Questions (FAQ)

Q: Can BAR43CFILM directly replace DB3X316N0L in existing designs?

A: Yes. BAR43CFILM maintains identical diode configuration (1 Pair Common Cathode), technology (Schottky), package format (TO-236-3, SC-59, SOT-23-3), and electrical ratings (30 V, 100 mA). The part is pin-compatible and functionally equivalent. Differences in reverse leakage current and maximum junction temperature represent performance improvements.

Q: What is the difference between BAT54CTA and DB3X316N0L?

A: BAT54CTA is rated for 200 mA average rectified current per diode, compared to 100 mA for DB3X316N0L. Both parts share identical 30 V reverse voltage rating, Schottky technology, 1 Pair Common Cathode configuration, and TO-236-3 package format. The higher current rating of BAT54CTA provides additional design margin in applications operating near the 100 mA limit.

Q: Why do RB425DT146 and RB425DFHT146 have 40 V ratings instead of 30 V?

A: The Rohm RB425 series devices are rated for 40 V maximum reverse voltage, which exceeds the 30 V requirement of DB3X316N0L. This higher voltage rating does not affect compatibility in circuits designed for 30 V operation. The 40 V rating provides additional safety margin in applications subject to voltage transients or overvoltage conditions.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification. The original DB3X316N0L carries RoHS Compliant status. All parts meet current environmental and regulatory requirements for electronic component manufacturing.

Q: What is the significance of MSL 1 (Unlimited) moisture sensitivity rating?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity restrictions. These parts do not require special moisture control during storage, handling, or assembly. All listed substitute parts carry identical MSL 1 (Unlimited) ratings, ensuring equivalent moisture handling requirements.

Q: Can RB425DFHT146 be used as a substitute despite its "Not For New Designs" status?

A: RB425DFHT146 carries a "Not For New Designs" product status classification, indicating that Rohm Semiconductor does not recommend this part for new circuit designs. Additionally, the 50 mA current rating is below the 100 mA specification of DB3X316N0L. This part is suitable only for legacy design maintenance where existing inventory must be replaced.

Q: What are the package compatibility considerations for these substitutes?

A: All substitute parts use the TO-236-3 (SC-59, SOT-23-3) surface mount package format, identical to DB3X316N0L. Pin assignments and footprint dimensions are compatible across all listed substitutes. No PCB layout modifications are required for direct substitution.

Q: How do forward voltage differences affect circuit performance?

A: DB3X316N0L and RB425DT146 both specify 550 mV maximum forward voltage at 100 mA. BAR43CFILM and BAT54CTA specify 1 V maximum forward voltage at 100 mA. In rectifier and switching applications, the higher forward voltage of BAR43CFILM and BAT54CTA results in slightly increased power dissipation. Circuit designs must accommodate this difference if thermal management is critical.

Q: What inventory considerations should guide part selection?

A: BAR43CFILM offers the highest inventory availability (37,919 pcs), followed by RB425DT146 (17,100 pcs) and BAT54CTA (5,101 pcs). For applications requiring immediate availability or high-volume procurement, BAR43CFILM is the optimal choice. RB425DFHT146 inventory (2,576 pcs) is limited and not recommended for new designs.