MA2ZD140GL Equivalent & Substitute Parts

Part Overview

The MA2ZD140GL is a Schottky diode manufactured by Panasonic Electronic Components, rated for 20 V DC reverse voltage and 100 mA average rectified current in a surface mount SMini2-F3 package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating available packaging options.

Key Parameters

Parameter	Value
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	20 V
Current - Average Rectified (Io)	100 mA
Voltage - Forward (Vf) (Max) @ If	400 mV @ 100 mA
Reverse Recovery Time (trr)	3 ns
Current - Reverse Leakage @ Vr	20 µA @ 10 V
Mounting Type	Surface Mount
Operating Temperature - Junction (Max)	125°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MA2ZD140GL are selected based on the following critical parameters:

Mandatory Matching Criteria:

Technology classification: Schottky diode
Voltage - DC Reverse (Vr) (Max): 20 V minimum
Current - Average Rectified (Io): Equal to or greater than 100 mA
Mounting Type: Surface Mount
Operating Temperature - Junction (Max): 125°C or higher
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Acceptable Variation Parameters:

Voltage - Forward (Vf): May exceed 400 mV @ 100 mA if current rating is higher
Reverse Recovery Time (trr): May exceed 3 ns for higher current-rated devices
Current - Reverse Leakage @ Vr: May exceed 20 µA @ 10 V for higher current-rated devices
Package / Case: Different surface mount packages acceptable if footprint compatibility is verified

The identified substitute parts meet or exceed the electrical specifications of the MA2ZD140GL while offering active product status and improved availability.

Parameter Comparison

Parameter	MA2ZD140GL (Panasonic)	SD103CWS-TP (Micro Commercial Co)	RBE1VAM20ATR (Rohm Semiconductor)
Technology	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	20 V	20 V	20 V
Current - Average Rectified (Io)	100 mA	350 mA	1 A
Voltage - Forward (Vf) (Max) @ If	400 mV @ 100 mA	600 mV @ 200 mA	530 mV @ 1 A
Reverse Recovery Time (trr)	3 ns	10 ns	Not specified
Current - Reverse Leakage @ Vr	20 µA @ 10 V	5 µA @ 10 V	200 µA @ 20 V
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	SC-90, SOD-323F	SC-76, SOD-323	2-SMD, Flat Lead
Operating Temperature - Junction (Max)	125°C	125°C	125°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	Not specified

Engineering Selection Recommendations

SD103CWS-TP (Micro Commercial Co) is the primary substitute for the MA2ZD140GL. This part maintains the 20 V reverse voltage specification and provides 350 mA current capacity, exceeding the original 100 mA requirement. The SD103CWS-TP is classified as active product status with ROHS3 compliance and REACH unaffected status. The SOD-323 package is compatible with SOD-323F footprints. Reverse leakage current is lower at 5 µA @ 10 V compared to the original specification. Inventory availability is 8486 units.

RBE1VAM20ATR (Rohm Semiconductor) is an alternative substitute offering the highest current capacity at 1 A with matching 20 V reverse voltage specification. This part is active product status with ROHS3 compliance and REACH unaffected status. The TUMD2M package differs from the original SMini2-F3, requiring footprint verification. Reverse leakage current is elevated at 200 µA @ 20 V. Inventory availability is 5200 units.

Both substitute parts satisfy the mandatory electrical and thermal requirements. Selection between SD103CWS-TP and RBE1VAM20ATR depends on package compatibility with existing PCB layouts and current margin requirements for the application circuit.

Frequently Asked Questions (FAQ)

Q: Can the SD103CWS-TP directly replace the MA2ZD140GL without PCB modification?

A: The SD103CWS-TP uses SOD-323 packaging, which is compatible with SOD-323F footprints. Verification of PCB land pattern dimensions is required before implementation. Both packages are surface mount with similar form factors.

Q: What is the significance of the higher current rating in substitute parts?

A: The SD103CWS-TP (350 mA) and RBE1VAM20ATR (1 A) exceed the original 100 mA specification. Higher current-rated Schottky diodes can operate safely at lower current levels. This provides design margin and may improve thermal performance in the application circuit.

Q: How does reverse leakage current affect circuit performance?

A: The SD103CWS-TP exhibits lower reverse leakage (5 µA @ 10 V) compared to the MA2ZD140GL (20 µA @ 10 V), improving circuit efficiency. The RBE1VAM20ATR shows elevated reverse leakage (200 µA @ 20 V), which may impact low-power applications requiring minimal standby current.

Q: Are there compliance differences between the substitute parts?

A: The SD103CWS-TP and RBE1VAM20ATR both carry ROHS3 compliance and REACH unaffected status. The original MA2ZD140GL compliance status is not specified. Both substitutes meet current regulatory requirements for electronic component procurement.

Q: What is the impact of different reverse recovery times?

A: The MA2ZD140GL specifies 3 ns reverse recovery time. The SD103CWS-TP specifies 10 ns. For applications operating below 200 mA, this difference is negligible. High-frequency switching circuits should verify performance with the longer recovery time specification.

Q: Which substitute part should be selected for new designs?

A: The SD103CWS-TP is recommended for new designs due to active product status, ROHS3 compliance, superior reverse leakage characteristics, and compatible packaging. The RBE1VAM20ATR serves as an alternative for applications requiring higher current capacity or specific package requirements.

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