DB2X20100L Equivalent & Substitute Parts

Part Overview

The DB2X20100L is a Schottky diode manufactured by Panasonic Electronic Components, rated for 20V DC reverse voltage and 500mA average rectified current in a surface mount SOD-123 package. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production needs. Substitute parts must maintain compatibility with the original electrical specifications and physical form factor while considering available inventory and product status.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	20	V
Current - Average Rectified (Io)	500	mA
Voltage - Forward (Vf) (Max) @ If	550 mV @ 500 mA	mV
Reverse Recovery Time (trr)	4.3	ns
Current - Reverse Leakage @ Vr	10	µA @ 10 V
Capacitance @ Vr, F	12	pF @ 10V, 1MHz
Package / Case	SOD-123	-
Operating Temperature - Junction (Max)	125	°C
Technology	Schottky	-
RoHS Status	RoHS Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the DB2X20100L are selected based on the following critical parameters that determine functional equivalence:

Primary Compatibility Criteria:

Technology: Schottky diode
Voltage - DC Reverse (Vr) (Max): Equal to or greater than 20V
Current - Average Rectified (Io): Equal to or greater than 500mA
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Surface Mount
RoHS Compliance: Required

Secondary Considerations:

Package compatibility (SOD-123 or SOD-123F variants acceptable for surface mount applications)
Forward voltage characteristics
Reverse leakage current specifications
Operating temperature range

The identified substitutes meet or exceed the electrical performance requirements of the original part while maintaining surface mount compatibility and regulatory compliance.

Parameter Comparison

Parameter	DB2X20100L (Original)	PMEG3015EH,115	RBS1MM40ATR
Manufacturer	Panasonic Electronic Components	Nexperia USA Inc.	Rohm Semiconductor
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	20 V	30 V	20 V
Current - Average Rectified (Io)	500 mA	1.5 A	1 A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 500 mA	550 mV @ 1.5 A	380 mV @ 1 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	10 µA @ 10 V	1 mA @ 30 V	400 µA @ 20 V
Package / Case	SOD-123	SOD-123F	SOD-123F
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction (Max)	125°C	150°C	125°C
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Discontinued at DiGi Electronics	Active	Active

Engineering Selection Recommendations

PMEG3015EH,115 (Nexperia USA Inc.)

This substitute provides superior electrical performance with 30V reverse voltage rating and 1.5A current capacity, exceeding the original DB2X20100L specifications. The part is actively manufactured and maintains ROHS3 compliance. The SOD-123F package is a direct surface mount equivalent with enhanced thermal characteristics. Operating temperature maximum of 150°C provides additional margin. Automotive qualification (AEC-Q100) and REACH compliance status support use in regulated applications. Inventory availability of 144,808 pieces ensures supply continuity.

RBS1MM40ATR (Rohm Semiconductor)

This substitute matches the original 20V reverse voltage specification and provides 1A current capacity, doubling the original 500mA rating. The part is actively manufactured with ROHS3 compliance and REACH unaffected status. Forward voltage of 380mV at 1A represents improved efficiency compared to the original 550mV specification. The SOD-123F package maintains surface mount compatibility. Inventory of 8,846 pieces supports production requirements. Operating temperature maximum of 125°C matches the original specification.

Both substitutes satisfy the mandatory electrical and compliance requirements for the DB2X20100L. Selection between them depends on application-specific requirements regarding voltage headroom, current capacity, and thermal performance.

Frequently Asked Questions (FAQ)

Q: Can the PMEG3015EH,115 be used as a direct replacement for the DB2X20100L?

A: The PMEG3015EH,115 meets all electrical performance requirements of the DB2X20100L with higher voltage and current ratings. The primary consideration is package compatibility: the PMEG3015EH,115 uses SOD-123F while the original uses SOD-123. Both are surface mount packages with compatible pin configurations for PCB layouts designed for SOD-123 footprints, though SOD-123F offers slightly different dimensions. Verification of PCB footprint compatibility is necessary before implementation.

Q: What is the difference between SOD-123 and SOD-123F packages?

A: SOD-123F is a variant of the SOD-123 package with enhanced thermal characteristics and slightly modified dimensions. Both packages are surface mount configurations with three leads. SOD-123F provides improved heat dissipation properties suitable for higher current applications. PCB footprints designed for SOD-123 may require adjustment to accommodate SOD-123F dimensions.

Q: Why does the RBS1MM40ATR have lower forward voltage than the DB2X20100L?

A: Forward voltage characteristics vary between manufacturers and specific diode designs. The RBS1MM40ATR specification of 380mV at 1A represents the maximum forward voltage at that current level. The original DB2X20100L specification of 550mV at 500mA reflects its design parameters at lower current. Lower forward voltage in the RBS1MM40ATR results in reduced power dissipation and improved circuit efficiency.

Q: Are both substitute parts RoHS compliant?

A: Both PMEG3015EH,115 and RBS1MM40ATR are ROHS3 compliant, meeting current regulatory requirements. The original DB2X20100L is RoHS compliant. All three parts satisfy environmental and regulatory compliance standards for electronic component manufacturing and use.

Q: What is the significance of the AEC-Q100 qualification on the PMEG3015EH,115?

A: AEC-Q100 qualification indicates the PMEG3015EH,115 meets automotive industry reliability and quality standards established by the Automotive Electronics Council. This qualification is relevant for applications requiring automotive-grade components but is not mandatory for general industrial or consumer applications.

Q: Can I use either substitute in applications requiring the exact 500mA current specification?

A: Both substitutes exceed the 500mA requirement. The PMEG3015EH,115 provides 1.5A capacity and the RBS1MM40ATR provides 1A capacity. Diodes rated for higher current than required operate within specification when used at lower current levels. The application circuit determines actual current flow based on load resistance and voltage conditions.

Q: What inventory considerations apply to these substitutes?

A: The PMEG3015EH,115 has 144,808 pieces in stock, providing substantial supply availability. The RBS1MM40ATR has 8,846 pieces in stock. Both parts are actively manufactured, ensuring long-term availability compared to the discontinued DB2X20100L. Inventory levels support both prototype development and production volume requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message