DB2631100L Equivalent & Substitute Parts

Part Overview

The DB2631100L is a general-purpose rectifier diode manufactured by Panasonic Electronic Components, rated for 30 V DC reverse voltage and 200 mA average rectified current in a surface mount SOD-882 package. This part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. Substitute parts must maintain compatibility with the original electrical specifications and mounting requirements while sourcing from currently available inventory.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	560 mV @ 200 mA	mV
Reverse Recovery Time (trr)	2.2	ns
Current - Reverse Leakage @ Vr	5	µA @ 30 V
Mounting Type	Surface Mount	—
Package / Case	SOD-882	—
Operating Temperature - Junction (Max)	125	°C
Technology	Standard	—
RoHS Status	RoHS Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the DB2631100L is determined by the following critical parameters:

Mandatory Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 30 V minimum
Current - Average Rectified (Io): 200 mA minimum
Mounting Type: Surface Mount
Package / Case: SOD-882 or equivalent footprint (DFN1006-2)

Acceptable Variation Criteria:

Voltage - Forward (Vf): Substitute parts may exceed the original specification
Reverse Recovery Time (trr): Substitute parts may have faster or slower recovery characteristics
Current - Reverse Leakage: Substitute parts may have lower or higher leakage within acceptable limits
Operating Temperature - Junction: Substitute parts may have higher maximum ratings
Technology: Schottky diodes are acceptable substitutes for standard rectifier diodes when electrical parameters align

All identified substitute parts meet or exceed the mandatory matching criteria and are currently active products with available inventory.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) [mV]	Package	Technology	Product Status	Inventory [Pcs]
DB2631100L	Panasonic Electronic Components	30	200	560 @ 200 mA	SOD-882	Standard	Discontinued	1124
RB520CS3002LYL	Nexperia USA Inc.	30	200	450 @ 10 mA	SOD-882	Schottky	Active	10479
BAT54LP-7	Diodes Incorporated	30	200	1000 @ 100 mA	0402 (1006 Metric)	Schottky	Active	605100
BAT54L,315	NXP Semiconductors	30	200	800 @ 100 mA	SOD-882	Schottky	Active	3300
PMEG3002AEL,315	Nexperia USA Inc.	30	200	480 @ 200 mA	SOD-882	Schottky	Active	69370
SDM20U30LP-7	Diodes Incorporated	30	200	575 @ 200 mA	0402 (1006 Metric)	Schottky	Active	164200

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

RB520CS3002LYL and PMEG3002AEL,315 are the preferred substitutes. Both parts maintain the SOD-882 package footprint, match the 30 V / 200 mA electrical specifications, and are qualified to AEC-Q100 automotive standards. RB520CS3002LYL exhibits the lowest reverse leakage (500 nA @ 10 V) and forward voltage (450 mV @ 10 mA), providing superior performance characteristics. PMEG3002AEL,315 offers forward voltage (480 mV @ 200 mA) closest to the original specification and carries automotive-grade qualification.

Secondary Substitutes (Package Consideration):

BAT54LP-7 and SDM20U30LP-7 are functionally equivalent but use the 0402 (1006 Metric) package designation instead of SOD-882. Both parts are manufactured by Diodes Incorporated and meet all electrical requirements. These substitutes are suitable for applications where PCB layout accommodates the alternative package footprint.

Tertiary Substitute (Limited Inventory):

BAT54L,315 from NXP Semiconductors meets all electrical and package requirements but has lower inventory availability (3300 pcs) compared to other active alternatives.

Not Recommended:

RB161QS-40T18R exceeds the original current specification (1 A vs. 200 mA) and voltage specification (40 V vs. 30 V), making it unsuitable for direct substitution in current-limited applications.

All recommended substitutes carry RoHS3 compliance and REACH Unaffected status, maintaining regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use a Schottky diode as a substitute for the DB2631100L standard rectifier diode?

A: Yes. Schottky diodes with matching voltage and current ratings are functionally equivalent substitutes. All identified alternatives are Schottky technology devices that meet or exceed the original electrical specifications.

Q: What is the difference between SOD-882 and DFN1006-2 packages?

A: SOD-882 and DFN1006-2 are equivalent package designations for the same physical footprint (0402 metric). Parts listed with either designation are mechanically compatible. Some manufacturers use different nomenclature for the same package.

Q: Does the forward voltage difference between substitutes affect circuit performance?

A: Forward voltage differences are within acceptable ranges for general-purpose rectifier applications. The original part specifies 560 mV @ 200 mA. Substitutes range from 450 mV to 1000 mV depending on measurement conditions. Verify forward voltage performance in your specific application if precision voltage drop is critical.

Q: Why do some substitutes have higher reverse leakage current?

A: Reverse leakage current varies by technology and manufacturing process. The original part specifies 5 µA @ 30 V. Substitutes range from 500 nA to 150 µA. Higher leakage does not affect functionality in most applications but may impact low-power or high-impedance circuits.

Q: Are all substitute parts currently in stock?

A: Yes. All identified substitutes are active products with confirmed inventory availability ranging from 3300 to 605100 pieces.

Q: Which substitute offers the best performance match to the original DB2631100L?

A: PMEG3002AEL,315 provides the closest electrical match with forward voltage of 480 mV @ 200 mA (original: 560 mV @ 200 mA) and carries AEC-Q100 automotive qualification. RB520CS3002LYL offers superior performance with the lowest reverse leakage and forward voltage characteristics.

Q: Can I use BAT54LP-7 or SDM20U30LP-7 if my PCB is designed for SOD-882?

A: Both parts use the 0402 (1006 Metric) package, which is mechanically equivalent to SOD-882. PCB footprints designed for SOD-882 will accommodate these substitutes without modification.

Q: What is the operating temperature range difference between the original and substitutes?

A: The original DB2631100L operates to 125°C maximum junction temperature. Most substitutes operate to 150°C maximum, providing improved thermal margin. BAT54LP-7 and SDM20U30LP-7 specify an operating range of -65°C to 125°C.

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