Equivalent & Substitute Parts for DB3X313F0L

Part Overview

The DB3X313F0L is a Schottky diode array manufactured by Panasonic Electronic Components, configured as 1 pair series connection with a maximum reverse voltage of 30 V and average rectified current of 200 mA per diode. This component is packaged in TO-236-3 (SC-59, SOT-23-3) surface mount format and is classified as discontinued at DiGi Electronics. Due to its discontinued status, equivalent substitute parts are necessary for ongoing production and maintenance applications requiring compatible Schottky diode array functionality.

Substiute Parts

DB3X313F0L

Panasonic Electronic ComponentsIn Stock: 2372DB3X313F0L Datasheet

Current PartRFQ

RB706UM-40FHTL

Rohm SemiconductorIn Stock: 2172RB706UM-40FHTL Datasheet

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RB706UM-40TL

Rohm SemiconductorIn Stock: 3469RB706UM-40TL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the DB3X313F0L is based on the following critical parameters that define functional equivalence:

Primary Substitution Criteria:

• Diode Configuration: 1 Pair Series Connection (must match)
• Technology: Schottky (must match)
• Mounting Type: Surface Mount (must match)
• Operating Temperature - Junction: 125°C (Max) (must match or exceed)
• RoHS Status: ROHS3 Compliant (must match)

Electrical Parameter Compatibility:

• Voltage - DC Reverse (Vr) (Max): Substitute must equal or exceed 30 V
• Current - Average Rectified (Io) (per Diode): Substitute must equal or exceed 200 mA
• Voltage - Forward (Vf) (Max): Lower values are acceptable
• Current - Reverse Leakage @ Vr: Lower values are acceptable

Package Compatibility:

• The DB3X313F0L uses TO-236-3 (SC-59, SOT-23-3) package format
• Substitute parts using SC-85 package represent a different physical footprint and require PCB layout modification

The identified substitute parts (RB706UM-40FHTL and RB706UM-40TL) meet the core functional criteria but present trade-offs in current rating and package format that must be evaluated for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

RB706UM-40TL (Rohm Semiconductor) - Preferred Selection

RB706UM-40TL is the recommended substitute based on active product status and continuous availability. This part maintains ROHS3 compliance and MSL 1 rating consistent with the DB3X313F0L. The 40 V reverse voltage rating provides margin above the 30 V requirement. However, the 30 mA current rating is significantly lower than the DB3X313F0L's 200 mA specification, restricting this substitute to applications with reduced current demands. Package format change from TO-236-3 to SC-85 requires PCB layout modification.

RB706UM-40FHTL (Rohm Semiconductor) - Alternative Selection

RB706UM-40FHTL provides identical electrical specifications to RB706UM-40TL with tape and reel packaging. Product status is classified as "Not For New Designs," indicating limited future availability and support. This part is suitable only for legacy system maintenance where design changes are not feasible. The same current rating limitation (30 mA) and package format change apply.

Critical Limitations of Substitute Parts

Both Rohm substitutes operate at 30 mA average rectified current, which is 85% lower than the DB3X313F0L's 200 mA rating. Applications requiring the full 200 mA current capacity cannot use these substitutes without circuit redesign. The SC-85 package footprint differs from the original TO-236-3, necessitating PCB layout modifications and re-qualification of the assembly process.

Frequently Asked Questions (FAQ)

Q: Can RB706UM-40TL directly replace DB3X313F0L without PCB modification?

A: No. The RB706UM-40TL uses SC-85 package format while the DB3X313F0L uses TO-236-3 (SC-59, SOT-23-3). Physical footprints are incompatible, requiring PCB layout changes and land pattern redesign.

Q: What is the primary limitation when substituting with Rohm parts?

A: The average rectified current rating is 30 mA for Rohm substitutes versus 200 mA for the DB3X313F0L. Applications requiring currents above 30 mA cannot use these substitutes. Circuit redesign or parallel device configuration may be necessary.

Q: Are the Rohm substitutes RoHS compliant?

A: Yes. Both RB706UM-40FHTL and RB706UM-40TL are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the DB3X313F0L compliance profile.

Q: What is the difference between RB706UM-40FHTL and RB706UM-40TL?

A: Both parts have identical electrical specifications and SC-85 package format. The primary difference is packaging format (Tape & Reel for both) and product status. RB706UM-40TL is active, while RB706UM-40FHTL is not recommended for new designs.

Q: Can I use these substitutes in automotive applications?

A: RB706UM-40FHTL carries AEC-Q101 automotive qualification. RB706UM-40TL specifications do not indicate automotive qualification in the provided data. Verify automotive requirements with application specifications before selection.

Q: What is the reverse voltage margin provided by the substitutes?

A: Both Rohm parts are rated at 40 V maximum reverse voltage, providing 10 V margin above the DB3X313F0L's 30 V rating. This margin is acceptable for standard circuit protection applications.

Q: Are there any compliance or certification differences?

A: All three parts are ROHS3 compliant with EAR99 export classification and HTSUS code 8541.10.0070. RB706UM-40FHTL includes REACH Unaffected status; RB706UM-40TL also indicates REACH Unaffected status. No material compliance differences exist.