SA2M-M3/5AT Equivalent & Substitute Parts

Part Overview

The SA2M-M3/5AT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 1000 V DC reverse voltage with a 2 A average rectified current rating in a DO-214AC (SMA) package. The part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit operation at reduced current ratings or voltage specifications. Alternative manufacturers and packaging configurations provide equivalent electrical performance within defined parameter ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 A	V
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	3	µA @ 1000 V
Speed Classification	Standard Recovery >500ns	-
Package / Case	DO-214AC, SMA	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution logic for the SA2M-M3/5AT is based on the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 1000 V minimum
Current - Average Rectified (Io): 2 A minimum
Package / Case: DO-214AC (SMA) surface mount
Mounting Type: Surface Mount
Speed Classification: Standard Recovery (>500ns) or faster

Secondary Compatibility Factors:

Operating Temperature Range: -55°C to 150°C minimum
RoHS Compliance: ROHS3 Compliant
Moisture Sensitivity Level: MSL 1 (Unlimited)

Substitute parts are grouped into two categories:

Category 1 - Full Parametric Equivalents: Parts matching all primary criteria with identical 2 A current rating and 1000 V voltage specification. These parts are direct replacements with no circuit redesign required.

Category 2 - Functional Substitutes: Parts with reduced current ratings (1 A) or voltage ratings (800 V) that operate within the same package and mounting configuration. These substitutes require circuit analysis to confirm suitability for the specific application.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs/ns]	Package	Product Status	Inventory [Pcs]
SA2M-M3/5AT	Vishay	1000	2	1.1 @ 2A	1.5 µs	DO-214AC	Active	702
SA2M-E3/5AT	Vishay	1000	2	1.1 @ 2A	1.5 µs	DO-214AC	Active	15625
SA2M-E3/61T	Vishay	1000	2	1.1 @ 2A	1.5 µs	DO-214AC	Active	21500
CGRA4007-G	Comchip Technology	1000	1	1.1 @ 1A	>500ns	DO-214AC	Active	52200
CURA107-G	Comchip Technology	1000	1	1.7 @ 1A	75 ns	DO-214AC	Active	13182
GF1M	onsemi	1000	1	1.2 @ 1A	2 µs	DO-214AC	Not For New Designs	63580
GS1K-LTP	Micro Commercial Co	800	1	1.0 @ 1A	>500ns	DO-214AC	Active	8458
GS1M-LTP	Micro Commercial Co	1000	1	1.0 @ 1A	>500ns	DO-214AC	Active	88005
MRA4006T3G	onsemi	800	1	1.1 @ 1A	>500ns	DO-214AC	Not For New Designs	45300
NRVA4006T3G	onsemi	800	1	1.1 @ 1A	>500ns	DO-214AC	Not For New Designs	50200
NRVA4007T3G	onsemi	1000	1	1.1 @ 1A	>500ns	DO-214AC	Not For New Designs	305400

Engineering Selection Recommendations

Full Parametric Equivalents (Direct Replacement):

The SA2M-E3/5AT and SA2M-E3/61T from Vishay General Semiconductor provide complete electrical and mechanical equivalence to the SA2M-M3/5AT. Both parts maintain identical voltage (1000 V), current (2 A), forward voltage drop (1.1 V @ 2 A), and recovery time (1.5 µs) specifications. Both are Active product status with ROHS3 compliance. The SA2M-E3/61T offers higher inventory availability (21,500 pcs) compared to the SA2M-E3/5AT (15,625 pcs).

Reduced Current Rating Substitutes (1 A Rating):

Parts with 1 A current ratings operate within the same 1000 V voltage class and DO-214AC package. These include CGRA4007-G (Comchip Technology), GF1M (onsemi), GS1M-LTP (Micro Commercial Co), and NRVA4007T3G (onsemi). All maintain 1000 V reverse voltage specification. CGRA4007-G and GS1M-LTP are Active product status. GF1M and NRVA4007T3G are classified as Not For New Designs. The NRVA4007T3G carries AEC-Q101 automotive qualification and is available in highest inventory (305,400 pcs).

Reduced Voltage Rating Substitutes (800 V Rating):

Parts with 800 V reverse voltage rating include GS1K-LTP (Micro Commercial Co), MRA4006T3G (onsemi), and NRVA4006T3G (onsemi). All maintain 1 A current rating and DO-214AC package. GS1K-LTP is Active product status. MRA4006T3G and NRVA4006T3G are Not For New Designs. NRVA4006T3G includes AEC-Q101 automotive qualification.

Fast Recovery Alternative:

CURA107-G (Comchip Technology) provides fast recovery characteristics (75 ns) at 1000 V and 1 A rating. This part exhibits higher forward voltage drop (1.7 V @ 1 A) compared to the main part and is suitable for applications requiring reduced reverse recovery time.

Frequently Asked Questions (FAQ)

Q: Can SA2M-E3/5AT and SA2M-E3/61T be used as direct replacements for SA2M-M3/5AT?

A: Yes. Both parts are parametric equivalents with identical voltage (1000 V), current (2 A), forward voltage (1.1 V @ 2 A), and recovery time (1.5 µs) specifications. All three parts are Active product status with ROHS3 compliance and MSL 1 rating. The difference between these Vishay parts is packaging configuration (5AT vs. 61T tape specifications), not electrical performance.

Q: What is the difference between 1 A and 2 A rated diodes?

A: The current rating indicates the maximum average rectified current the diode can conduct continuously. A 1 A diode cannot safely carry 2 A continuous current. Substituting a 1 A part for a 2 A application requires circuit analysis to confirm the actual operating current does not exceed 1 A. If the circuit requires 2 A capability, 1 A substitutes are not suitable.

Q: Can 800 V rated diodes replace 1000 V rated diodes?

A: No. The voltage rating represents the maximum reverse voltage the diode can withstand. An 800 V diode cannot be used in a 1000 V application. Substituting an 800 V part for a 1000 V circuit creates risk of diode failure. Only use 800 V parts in applications where the actual reverse voltage does not exceed 800 V.

Q: What does "Not For New Designs" product status mean?

A: Parts marked "Not For New Designs" are legacy components that manufacturers no longer recommend for new circuit designs. These parts remain available for existing product support and maintenance. For new designs, select parts with Active product status such as SA2M-E3/5AT, SA2M-E3/61T, CGRA4007-G, GS1K-LTP, GS1M-LTP, or CURA107-G.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed in this reference are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level. All parts carry EAR99 ECCN classification and HTSUS code 8541.10.0080.

Q: What is the difference between standard recovery and fast recovery diodes?

A: Standard recovery diodes have reverse recovery time greater than 500 ns. Fast recovery diodes have reverse recovery time of 500 ns or less. CURA107-G is a fast recovery diode with 75 ns recovery time. Fast recovery diodes reduce switching losses in high-frequency applications but typically exhibit higher forward voltage drop. The SA2M-M3/5AT is a standard recovery diode with 1.5 µs recovery time suitable for general-purpose rectification.

Q: Does package configuration affect electrical performance?

A: No. The DO-214AC (SMA) package is a standard surface mount configuration used across all listed parts. Differences between SA2M-M3/5AT, SA2M-E3/5AT, and SA2M-E3/61T relate to tape reel specifications (5AT vs. 61T) for automated assembly, not electrical characteristics. Both tape configurations are compatible with standard pick-and-place equipment.

Q: What is AEC-Q101 qualification?

A: AEC-Q101 is an automotive electronics qualification standard. Parts carrying this qualification (NRVA4006T3G and NRVA4007T3G) have undergone additional testing and reliability screening for automotive applications. These parts are suitable for both automotive and general industrial applications.

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