MA2SD3100L Schottky Diode Equivalent & Substitute Parts

Part Overview

The MA2SD3100L is a Schottky rectifier diode manufactured by Panasonic Electronic Components, rated for 30 V DC reverse voltage and 200 mA average rectified current in a surface mount SC-79/SOD-523 package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part operates at a maximum junction temperature of 125°C and features a reverse recovery time of 2 ns with low forward voltage characteristics typical of Schottky technology.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	470 mV @ 200 mA	mV
Reverse Recovery Time (trr)	2	ns
Current - Reverse Leakage @ Vr	200 µA @ 30 V	µA
Capacitance @ Vr, F	25 pF @ 0V, 1MHz	pF
Package / Case	SC-79, SOD-523	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction (Max)	125	°C
Technology	Schottky	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution eligibility for the MA2SD3100L is determined by the following critical parameters:

Primary Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 30 V
Current - Average Rectified (Io): 200 mA
Package / Case: SC-79, SOD-523 (or compatible variant)
Mounting Type: Surface Mount
Technology: Schottky

Secondary Compatibility Factors:

Reverse Recovery Time (trr): Lower or equal values acceptable
Current - Reverse Leakage @ Vr: Lower values preferred for improved performance
Voltage - Forward (Vf): Values within typical Schottky range (470 mV to 1 V @ rated current)
Operating Temperature Range: Must support minimum 125°C junction temperature
Moisture Sensitivity Level (MSL): Level 1 (Unlimited) maintained across substitutes

All substitute parts listed meet the primary matching criteria. Variations in secondary parameters reflect different manufacturer implementations while maintaining functional equivalence within the specified electrical and mechanical constraints.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) [mV]	trr [ns]	Ir @ Vr [µA]	Package	Status
MA2SD3100L	Panasonic	30	200	470 @ 200 mA	2	200 @ 30 V	SOD-523	Obsolete
1PS79SB10,115	Nexperia USA Inc.	30	200	800 @ 100 mA	—	2 @ 25 V	SOD-523	Active
BAT43XV2	onsemi	30	200	1000 @ 200 mA	5	0.5 @ 25 V	SOD-523F	Active
BAT54WT-7	Diodes Incorporated	30	100	1000 @ 100 mA	5	2 @ 25 V	SOD-523	Active
BAT54WX-TP	Micro Commercial Co	30	200	800 @ 100 mA	5	2 @ 25 V	SOD-523	Active
BAT54XV2T1G	onsemi	30	200	800 @ 100 mA	5	2 @ 25 V	SOD-523	Active
BAT54XV2T5G	onsemi	30	200	800 @ 100 mA	5	2 @ 25 V	SOD-523	Active
NSRLL30XV2T1G	onsemi	30	200	600 @ 200 mA	—	1 @ 10 V	SOD-523	Active
NSVRB521S30T1G	onsemi	30	200	500 @ 200 mA	—	30 @ 10 V	SOD-523	Active
PMEG3002AEB,115	Nexperia USA Inc.	30	200	480 @ 200 mA	—	10 @ 10 V	SOD-523	Active

Engineering Selection Recommendations

Full Electrical Equivalents (30 V, 200 mA Rating):

The following parts provide complete electrical equivalence to the MA2SD3100L with active product status and current manufacturing support:

1PS79SB10,115 (Nexperia): Active status with AEC-Q100 automotive qualification. RoHS3 compliant. Suitable for automotive and industrial applications requiring qualified components.
BAT54WX-TP (Micro Commercial Co): Active status with extended operating temperature range (-65°C to 150°C). RoHS3 compliant. Tape & Reel packaging available.
BAT54XV2T1G and BAT54XV2T5G (onsemi): Active status with high inventory availability (55,400 and 37,400 units respectively). RoHS3 compliant. Operating temperature range -55°C to 125°C.
NSRLL30XV2T1G (onsemi): Active status with superior forward voltage characteristics (600 mV @ 200 mA). Extended operating temperature range (-55°C to 150°C). RoHS3 compliant.
NSVRB521S30T1G (onsemi): Active status with lowest forward voltage (500 mV @ 200 mA). Operating temperature range -55°C to 125°C. RoHS3 compliant.
PMEG3002AEB,115 (Nexperia): Active status with AEC-Q100 automotive qualification. Forward voltage 480 mV @ 200 mA closely matches original specification. Extended operating temperature range (-65°C to 125°C). RoHS3 compliant.

Partial Current Rating Substitute (30 V, 100 mA Rating):

BAT54WT-7 (Diodes Incorporated): Active status with extended operating temperature range (-65°C to 150°C). Suitable only for applications where 100 mA average rectified current is sufficient. RoHS3 compliant.

Package Variant:

BAT43XV2 (onsemi): Active status with SOD-523F package variant. Electrical specifications match 30 V, 200 mA requirements. RoHS3 compliant. Verify package compatibility with PCB footprint before selection.

All recommended substitutes maintain RoHS3 compliance, MSL Level 1 rating, and REACH unaffected status. Selection should prioritize parts with active product status and established supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can BAT54WT-7 replace MA2SD3100L in all applications?

A: BAT54WT-7 is rated for 100 mA average rectified current, while MA2SD3100L is rated for 200 mA. Substitution is valid only for applications where the actual circuit current does not exceed 100 mA. Verify circuit requirements before selection.

Q: What is the difference between SOD-523 and SOD-523F packages?

A: Both are surface mount packages in the SC-79 family with identical electrical performance. SOD-523F is a variant designation. Verify PCB footprint compatibility with your design before substituting BAT43XV2.

Q: Why do substitute parts show different forward voltage values?

A: Forward voltage (Vf) varies with measurement current and temperature. The MA2SD3100L specifies Vf @ 200 mA, while some substitutes specify Vf @ 100 mA. All values fall within acceptable Schottky diode operating ranges. Verify circuit performance if forward voltage drop is critical to your application.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Which substitute offers the best performance match to the original MA2SD3100L?

A: PMEG3002AEB,115 provides the closest electrical match with forward voltage of 480 mV @ 200 mA (original: 470 mV @ 200 mA). NSVRB521S30T1G offers superior performance with 500 mV @ 200 mA forward voltage. Both are active, qualified components suitable for direct replacement.

Q: Can I use parts with different reverse recovery times?

A: Yes. The MA2SD3100L specifies 2 ns trr. Substitute parts with 5 ns or unspecified trr are acceptable for most applications. Lower trr values indicate faster switching performance. Verify switching frequency requirements in your circuit before selection.

Q: What is the significance of AEC-Q100 qualification on some substitutes?

A: AEC-Q100 qualification indicates automotive-grade reliability testing and qualification. Parts with this certification (1PS79SB10,115 and PMEG3002AEB,115) are suitable for automotive and high-reliability applications. Non-qualified parts are suitable for general industrial and consumer applications.

Q: Are Tape & Reel packaged parts compatible with Cut Tape & Digi-Reel packaged parts?

A: Both packaging formats contain identical components on different carrier media. Tape & Reel (TR) is supplied on continuous tape for automated assembly. Cut Tape (CT) & Digi-Reel is supplied in smaller quantities on cut tape. Electrical and mechanical specifications are identical. Selection depends on procurement volume and assembly equipment compatibility.

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