MA2SD320GL Equivalent & Substitute Parts

Part Overview

The MA2SD320GL is a Schottky diode manufactured by Panasonic Electronic Components, rated for 30 V DC reverse voltage and 200 mA average rectified current in a surface mount SSMini2-F4 package. This part is classified as obsolete, making equivalent and substitute components necessary for ongoing design support, production continuity, and component sourcing.

The MA2SD320GL operates as a small signal rectifier with a maximum forward voltage of 560 mV at 200 mA and a reverse recovery time of 2 ns. Its compact SC-79/SOD-523 package footprint is widely adopted across the industry, enabling direct mechanical and electrical substitution with compatible alternatives from active manufacturers.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	560 mV @ 200 mA	—
Reverse Recovery Time (trr)	2	ns
Current - Reverse Leakage @ Vr	5 µA @ 30 V	—
Capacitance @ Vr, F	25 pF @ 0 V, 1 MHz	—
Package / Case	SC-79, SOD-523	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction (Max)	125	°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the MA2SD320GL is determined by strict electrical and mechanical compatibility across the following parameters:

Mandatory Matching Parameters:

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

Allowable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Substitute parts may vary within the range of 480 mV to 800 mV at their specified test currents (100 mA to 200 mA)
Current - Reverse Leakage @ Vr: Substitute parts may range from 1 µA to 30 µA at their specified test voltages (10 V to 30 V)
Capacitance @ Vr, F: Substitute parts may range from 10 pF to 25 pF at their specified test conditions
Reverse Recovery Time (trr): Substitute parts may range from 2 ns to 5 ns
Operating Temperature - Junction (Max): Substitute parts may range from 125°C to 150°C

All substitute parts listed maintain the same package footprint (SC-79/SOD-523), surface mount configuration, and core Schottky diode functionality. Variations in forward voltage, leakage current, and junction temperature represent acceptable trade-offs within the small signal rectifier category and do not compromise circuit-level compatibility for standard applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) [mV]	Ir @ Vr [µA]	Cj [pF]	trr [ns]	Tj (Max) [°C]	Package	Status
MA2SD320GL	Panasonic Electronic Components	30	200	560 @ 200 mA	5 @ 30 V	25 @ 0 V	2	125	SC-79, SOD-523	Obsolete
1PS79SB10,115	Nexperia USA Inc.	30	200	800 @ 100 mA	2 @ 25 V	10 @ 1 V	—	125	SC-79, SOD-523	Active
1PS79SB31,115	Nexperia USA Inc.	30	200	500 @ 200 mA	30 @ 10 V	25 @ 1 V	—	125	SC-79, SOD-523	Active
1PS79SB31,135	Nexperia USA Inc.	30	200	500 @ 200 mA	30 @ 10 V	25 @ 1 V	—	125	SC-79, SOD-523	Active
1PS79SB31,315	Nexperia USA Inc.	30	200	500 @ 200 mA	30 @ 10 V	25 @ 1 V	—	125	SC-79, SOD-523	Active
BAT5402VH6327XTSA1	Infineon Technologies	30	200	800 @ 100 mA	2 @ 25 V	10 @ 1 V	5	150	SC-79, SOD-523	Active
NSVRB521S30T1G	onsemi	30	200	500 @ 200 mA	30 @ 10 V	—	—	125	SC-79, SOD-523	Active
PMEG3002AEB,115	Nexperia USA Inc.	30	200	480 @ 200 mA	10 @ 10 V	25 @ 1 V	—	125	SC-79, SOD-523	Active
RB520S30,115	Nexperia USA Inc.	30	200	600 @ 200 mA	1 @ 10 V	20 @ 1 V	—	150	SC-79, SOD-523	Active
RB520S30YL	Nexperia USA Inc.	30	200	600 @ 200 mA	1 @ 10 V	20 @ 1 V	—	150	SC-79, SOD-523	Active
RB520SM-30FHT2R	Rohm Semiconductor	30	200	580 @ 200 mA	1 @ 10 V	—	—	150	SC-79, SOD-523	Active

Engineering Selection Recommendations

All listed substitute parts are classified as Active products from established semiconductor manufacturers, ensuring long-term availability and supply chain stability compared to the obsolete MA2SD320GL.

Nexperia USA Inc. Substitutes (1PS79SB Series and RB520S Series): The 1PS79SB31,115, 1PS79SB31,135, and 1PS79SB31,315 variants from Nexperia provide forward voltage characteristics (500 mV @ 200 mA) closest to the original MA2SD320GL specification (560 mV @ 200 mA). These parts carry RoHS3 compliance and REACH Unaffected status. The RB520S30,115 and RB520S30YL variants offer superior reverse leakage performance (1 µA @ 10 V) and extended junction temperature rating (150°C Max), with AEC-Q100 or AEC-Q101 automotive qualification.

Nexperia PMEG3002AEB,115: This part delivers the lowest forward voltage (480 mV @ 200 mA) among all substitutes and includes AEC-Q100 automotive qualification with extended operating temperature range (-65°C to 125°C). It is suitable for applications requiring enhanced thermal performance and automotive-grade reliability.

Infineon BAT5402VH6327XTSA1: This substitute provides the highest junction temperature rating (150°C Max) and includes a specified reverse recovery time (5 ns), which is acceptable for small signal applications. It carries RoHS3 compliance and REACH Unaffected status.

onsemi NSVRB521S30T1G: This part matches the forward voltage specification (500 mV @ 200 mA) and provides an extended operating temperature range (-55°C to 125°C). It carries RoHS3 compliance and REACH Unaffected status.

Rohm Semiconductor RB520SM-30FHT2R: This substitute offers forward voltage (580 mV @ 200 mA) very close to the original specification and includes AEC-Q101 automotive qualification with 150°C junction temperature rating. It is packaged in EMD2 format, maintaining SC-79/SOD-523 footprint compatibility.

All substitutes maintain identical voltage and current ratings, package footprint, and surface mount configuration. Selection should be based on specific application requirements regarding forward voltage tolerance, leakage current performance, thermal requirements, and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the MA2SD320GL be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts share the same 30 V reverse voltage rating, 200 mA current rating, SC-79/SOD-523 package footprint, and surface mount configuration. Direct mechanical and electrical substitution is supported without PCB redesign.

Q: What is the primary difference between the 1PS79SB31 variants (115, 135, 315)?

A: The three variants differ only in packaging configuration. The 1PS79SB31,115 is supplied in Cut Tape (CT) & Digi-Reel® format, the 1PS79SB31,135 is supplied in Tape & Reel (TR) format, and the 1PS79SB31,315 is supplied in Tape & Reel (TR) format. All three share identical electrical specifications and are functionally equivalent.

Q: How does forward voltage variation affect circuit performance?

A: Forward voltage variation among substitutes ranges from 480 mV to 800 mV depending on the part and test current. For small signal rectifier applications, this variation is typically acceptable. Applications with strict voltage drop requirements should select parts with forward voltage specifications closest to the original MA2SD320GL (560 mV @ 200 mA), such as the RB520SM-30FHT2R (580 mV @ 200 mA) or 1PS79SB31 series (500 mV @ 200 mA).

Q: What is the significance of reverse leakage current differences?

A: Reverse leakage current ranges from 1 µA to 30 µA among the substitutes. Lower leakage current (1 µA to 5 µA) is preferable for applications requiring minimal standby current or high impedance in reverse bias. The RB520S30,115, RB520S30YL, and RB520SM-30FHT2R variants offer superior leakage performance (1 µA @ 10 V).

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed active substitute parts carry RoHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements.

Q: Which substitutes include automotive qualification?

A: The following parts include automotive-grade qualification: 1PS79SB10,115 (AEC-Q100), PMEG3002AEB,115 (AEC-Q100), RB520S30,115 (AEC-Q100), RB520S30YL (AEC-Q101), and RB520SM-30FHT2R (AEC-Q101).

Q: What is the difference between the RB520S30,115 and RB520S30YL variants?

A: Both parts share identical electrical specifications and forward voltage characteristics (600 mV @ 200 mA). The primary difference is packaging format: RB520S30,115 is supplied in Cut Tape (CT) & Digi-Reel® format, while RB520S30YL is supplied in Tape & Reel (TR) format. RB520S30YL carries AEC-Q101 qualification versus AEC-Q100 for RB520S30,115.

Q: Can the MA2SD320GL be used in new designs, or should substitutes be specified?

A: The MA2SD320GL is classified as obsolete and should not be specified for new designs. Active substitute parts from Nexperia, Infineon, onsemi, or Rohm Semiconductor should be selected to ensure long-term supply availability and manufacturing support.

Q: How does junction temperature rating affect part selection?

A: The MA2SD320GL has a maximum junction temperature of 125°C. Several substitutes offer extended ratings (150°C), including BAT5402VH6327XTSA1, RB520S30,115, RB520S30YL, and RB520SM-30FHT2R. Higher junction temperature ratings provide improved thermal margin in high-ambient or high-power applications.

Q: Are there any package differences among the substitutes?

A: All substitutes maintain the SC-79/SOD-523 package footprint for direct PCB compatibility. However, the RB520SM-30FHT2R uses an EMD2 supplier device package designation while others use SOD-523. Both designations refer to the same physical SC-79/SOD-523 footprint and are mechanically interchangeable.

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