DB3J201K0L Equivalent & Substitute Parts

Part Overview

The DB3J201K0L is a Schottky diode manufactured by Panasonic Electronic Components, rated for 20 V DC reverse voltage and 500 mA average rectified current in a surface mount SMini3-F2-B package. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing production and repair applications. Substitute parts must maintain electrical performance within the specified voltage and current ratings while accommodating package and thermal requirements of the target application.

Substiute Parts

DB3J201K0L

Panasonic Electronic ComponentsIn Stock: 1233DB3J201K0L Datasheet

Current PartRFQ

PMEG2005ET,215

Nexperia USA Inc.In Stock: 56131PMEG2005ET,215 Datasheet

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RB450UMFHTL

Rohm SemiconductorIn Stock: 3791RB450UMFHTL Datasheet

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RB450UMTL

Rohm SemiconductorIn Stock: 3420RB450UMTL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DB3J201K0L is determined by the following critical parameters: Schottky diode technology, maximum reverse voltage rating, average rectified current capacity, forward voltage characteristics, and surface mount package compatibility. The DB3J201K0L operates at 20 V maximum reverse voltage with 500 mA current handling.

Substitute parts are grouped into two categories based on electrical compatibility:

Category 1: Full Electrical Equivalents (20 V / 500 mA Rating) Parts in this category maintain the same voltage and current specifications as the DB3J201K0L, ensuring direct functional replacement in circuits designed for these parameters.

Category 2: Derated Electrical Substitutes (40 V / 100 mA Rating) Parts in this category feature higher voltage ratings but reduced current capacity. These substitutes are suitable only for applications where the circuit operates at lower current levels than the original 500 mA specification, provided the 40 V reverse voltage rating does not conflict with circuit design constraints.

Parameter Comparison

Engineering Selection Recommendations

PMEG2005ET,215 (Nexperia USA Inc.)

The PMEG2005ET,215 is the primary substitute for the DB3J201K0L. This part maintains identical voltage (20 V) and current (500 mA) ratings, ensuring full electrical compatibility. The PMEG2005ET,215 features improved forward voltage characteristics (390 mV @ 500 mA versus 550 mV), resulting in lower power dissipation. The component is currently in active production status with high inventory availability (56,114 units). Operating temperature rating of 150°C exceeds the original part specification. Package configuration differs (TO-236AB versus SMini3-F2-B), requiring PCB layout verification. RoHS3 compliance and unlimited moisture sensitivity rating align with modern manufacturing standards.

RB450UMFHTL (Rohm Semiconductor)

The RB450UMFHTL operates at 40 V reverse voltage with 100 mA current capacity, representing a derated electrical substitute. This part is suitable only for applications where circuit current requirements do not exceed 100 mA. The component carries automotive qualification (AEC-Q101) and is designated "Not For New Designs," limiting its applicability to legacy system support. Package compatibility with SC-85 matches the original part. Inventory availability is moderate (3,715 units).

RB450UMTL (Rohm Semiconductor)

The RB450UMTL shares identical electrical specifications with the RB450UMFHTL (40 V / 100 mA) and is discontinued at DiGi Electronics. This part is not recommended for new applications due to product status and reduced current rating relative to the original DB3J201K0L specification.

Frequently Asked Questions (FAQ)

Q: Can the PMEG2005ET,215 directly replace the DB3J201K0L in all applications?

A: The PMEG2005ET,215 maintains identical voltage and current ratings (20 V / 500 mA), ensuring electrical compatibility. However, the package differs (TO-236AB versus SMini3-F2-B). PCB layout and footprint verification is required before implementation.

Q: What is the significance of the forward voltage difference between DB3J201K0L (550 mV) and PMEG2005ET,215 (390 mV)?

A: The lower forward voltage of the PMEG2005ET,215 results in reduced power dissipation during operation. For applications sensitive to heat generation, this represents an improvement. Circuits designed with specific voltage drop assumptions must be evaluated for compatibility.

Q: Are the Rohm RB450 series parts suitable replacements?

A: The RB450UMFHTL and RB450UMTL are derated substitutes with 40 V reverse voltage but only 100 mA current capacity. These parts are suitable only for circuits operating below 100 mA. Applications requiring the full 500 mA rating cannot use these substitutes.

Q: What packaging considerations apply to the PMEG2005ET,215?

A: The PMEG2005ET,215 uses TO-236AB (SOT-23-3) packaging, which differs from the original SMini3-F2-B package. Physical dimensions and PCB footprint are not identical. Design verification and potential PCB modification may be necessary.

Q: Does product status affect the selection of substitute parts?

A: The PMEG2005ET,215 is in active production, ensuring long-term availability and supply chain stability. The RB450 series parts carry "Not For New Designs" or "Discontinued" status, limiting their suitability for new product development. For legacy system support, discontinued parts may be acceptable if inventory is available.

Q: Are all substitute parts RoHS compliant?

A: Yes. The DB3J201K0L is RoHS Compliant, while all substitute parts (PMEG2005ET,215, RB450UMFHTL, RB450UMTL) are ROHS3 Compliant, meeting current environmental standards.