SA2D-M3/61T Equivalent & Substitute Parts

Part Overview

The SA2D-M3/61T is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 200 V DC reverse voltage with 2 A average rectified current in a DO-214AC (SMA) package. The part is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are identified to address supply chain requirements, inventory availability, or specific application performance characteristics while maintaining electrical and mechanical compatibility within the DO-214AC package family.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	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 @ 200 V
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SA2D-M3/61T are classified into two categories based on electrical parameter compatibility:

Parametric Equivalents (Full Current Rating Match): Parts maintaining 200 V reverse voltage and 2 A average rectified current specifications. These parts are direct functional replacements with identical current-handling capacity.

Manufacturer Recommended Substitutes (Reduced Current Rating): Parts rated at 200 V reverse voltage but with 1 A average rectified current. These substitutes are applicable in circuits where the full 2 A current capacity is not required. Selection of 1 A rated parts requires circuit analysis to confirm current demand does not exceed 1 A under all operating conditions.

Substitution logic is based on the following critical parameters:

Voltage - DC Reverse (Vr) (Max): 200 V (mandatory match)
Package / Case: DO-214AC, SMA (mandatory match)
Mounting Type: Surface Mount (mandatory match)
Current - Average Rectified (Io): 2 A (for parametric equivalents) or 1 A (for recommended substitutes)
Operating Temperature Range: -55°C to 150°C minimum (or extended range)
RoHS3 Compliance: Required
MSL Rating: 1 (Unlimited)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs/ns]	Ir @ Vr [µA]	Package	Temp Range [°C]	Product Status
SA2D-M3/61T	Vishay	200	2	1.1 @ 2A	1.5 µs	3 @ 200V	DO-214AC	-55 to 150	Active
SA2D-E3/5AT	Vishay	200	2	1.1 @ 2A	1.5 µs	3 @ 200V	DO-214AC	-55 to 150	Active
SA2D-E3/61T	Vishay	200	2	1.1 @ 2A	1.5 µs	3 @ 200V	DO-214AC	-55 to 150	Active
CSFA103-G	Comchip Technology	200	1	0.95 @ 1A	≤500ns	5 @ 200V	DO-214AC	-55 to 150	Active
CURA103-G	Comchip Technology	200	1	1.0 @ 1A	50 ns	5 @ 200V	DO-214AC	-55 to 150	Active
EGF1D	onsemi	200	1	1.0 @ 1A	50 ns	10 @ 200V	DO-214AC	-65 to 175	Not For New Designs
ES1D	EVVO Semi	200	1	1.0 @ 1A	35 ns	5 @ 200V	DO-214AC	-55 to 150	Active
ES1D-13-F	Diodes Incorporated	200	1	0.92 @ 1A	25 ns	5 @ 200V	DO-214AC	-55 to 150	Active
ES1D-LTP	Micro Commercial Co	200	1	0.95 @ 1A	35 ns	5 @ 200V	DO-214AC	-65 to 175	Active
ES2D-LTP	Micro Commercial Co	200	2	0.95 @ 2A	35 ns	5 @ 200V	DO-214AC	-65 to 175	Active
ES2DA-13-F	Diodes Incorporated	200	2	0.92 @ 2A	25 ns	5 @ 200V	DO-214AC	-55 to 150	Active

Engineering Selection Recommendations

Parametric Equivalent Selection (2 A Current Rating):

SA2D-E3/5AT and SA2D-E3/61T are parametric equivalents of SA2D-M3/61T, manufactured by Vishay. All three parts share identical electrical specifications: 200 V reverse voltage, 2 A average rectified current, 1.1 V forward voltage at 2 A, and 1.5 µs reverse recovery time. All are Active product status with RoHS3 compliance and MSL 1 rating. These parts are interchangeable for direct replacement in existing designs.

ES2D-LTP (Micro Commercial Co) and ES2DA-13-F (Diodes Incorporated) are alternative 2 A rated parts meeting the 200 V reverse voltage and DO-214AC package requirements. Both are Active product status and RoHS3 compliant. ES2D-LTP offers extended operating temperature range (-65°C to 175°C) compared to the standard -55°C to 150°C range. ES2DA-13-F features faster reverse recovery time (25 ns) and lower forward voltage (0.92 V @ 2 A).

Manufacturer Recommended Substitute Selection (1 A Current Rating):

CSFA103-G, CURA103-G, ES1D, ES1D-13-F, and ES1D-LTP are 1 A rated alternatives. All maintain 200 V reverse voltage and DO-214AC package compatibility. These parts are suitable for applications where circuit current demand does not exceed 1 A.

CSFA103-G (Comchip Technology) and ES1D-LTP (Micro Commercial Co) provide forward voltage of 0.95 V @ 1 A with 35 ns reverse recovery time. Both are Active product status.

CURA103-G (Comchip Technology) and ES1D (EVVO Semi) feature 50 ns and 35 ns reverse recovery times respectively, with 1.0 V and 1.0 V forward voltage at 1 A. Both are Active product status.

ES1D-13-F (Diodes Incorporated) offers the fastest reverse recovery time (25 ns) and lowest forward voltage (0.92 V @ 1 A) among 1 A alternatives, with Active product status.

EGF1D (onsemi) is classified as Not For New Designs and should not be selected for new circuit development, despite meeting electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can SA2D-E3/5AT or SA2D-E3/61T be used as direct replacements for SA2D-M3/61T?

A: Yes. SA2D-E3/5AT and SA2D-E3/61T are parametric equivalents with identical electrical specifications and package type. Both are manufactured by Vishay and are Active product status. Direct substitution is supported without circuit modification.

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

A: The primary difference is average rectified current capacity. The SA2D-M3/61T is rated for 2 A, while alternatives such as CSFA103-G, CURA103-G, ES1D, ES1D-13-F, and ES1D-LTP are rated for 1 A. Selection of 1 A parts requires verification that circuit current demand does not exceed 1 A under all operating conditions, including transient and fault conditions.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of SA2D-M3/61T.

Q: What does "Not For New Designs" mean for EGF1D?

A: EGF1D carries a product status designation of "Not For New Designs." This indicates the part is in mature or declining production phase. While EGF1D meets electrical specifications, it should not be selected for new circuit development. Active product status alternatives are preferred for long-term design stability.

Q: How do reverse recovery time differences affect circuit performance?

A: Reverse recovery time (trr) is provided as reference information. SA2D-M3/61T specifies 1.5 µs. Substitute parts range from 25 ns to 50 ns (fast recovery types) or 1.5 µs (standard recovery). The choice between standard and fast recovery types depends on circuit switching frequency and application requirements. This parameter is provided for engineering evaluation but does not determine substitution eligibility based on the specified criteria.

Q: Can ES2D-LTP be used if the circuit operates at -65°C?

A: ES2D-LTP is rated for -65°C to 175°C operating temperature range, compared to SA2D-M3/61T at -55°C to 150°C. If circuit operation extends to -65°C, ES2D-LTP supports this extended range. However, SA2D-M3/61T is limited to -55°C minimum. Verify circuit requirements before selecting parts with extended temperature ranges.

Q: Are there packaging differences between substitute parts?

A: All listed substitute parts use DO-214AC (SMA) surface mount package, matching SA2D-M3/61T. Packaging is consistent across the substitution list. Tape & Reel (TR) and Cut Tape (CT) designations refer to supply format only and do not affect component functionality or PCB mounting.

Q: What is the significance of forward voltage (Vf) differences?

A: Forward voltage is provided as reference information. SA2D-M3/61T specifies 1.1 V @ 2 A. Substitute parts range from 0.92 V to 1.1 V depending on manufacturer and current rating. Forward voltage differences affect power dissipation in the diode. This parameter is provided for engineering evaluation but does not determine substitution eligibility based on the specified criteria.

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