GS2G-LTP Equivalent & Substitute Parts

Part Overview

The GS2G-LTP is a general-purpose rectifier diode rated for 400 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AC (SMA) package. Manufactured by Micro Commercial Co, this component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary to maintain design continuity, support existing production lines, and ensure component availability for legacy systems.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 2 A	V
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Capacitance @ Vr, F	20	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the GS2G-LTP are qualified based on the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 2 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 2 A
Speed: Standard Recovery >500ns, > 200mA (Io)
Operating Temperature - Junction: -55°C to 150°C

Mechanical & Packaging Equivalence Criteria:

Package / Case: DO-214AC, SMA (surface mount)
Mounting Type: Surface Mount
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Compliance Equivalence Criteria:

RoHS Status: ROHS3 Compliant
ECCN: EAR99
HTSUS: 8541.10.0080

All substitute parts listed meet these core requirements. Variations in reverse leakage current and junction capacitance are within acceptable tolerances for general-purpose rectifier applications and do not preclude substitution.

Parameter Comparison

Parameter	GS2G-LTP (Main)	S2G-HF	SA2G-E3/5AT	SA2G-E3/61T	SA2G-M3/5AT	SA2G-M3/61T
Manufacturer	Micro Commercial Co	Comchip Technology	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Product Status	Not For New Designs	Active	Active	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V	400 V	400 V	400 V
Current - Average Rectified (Io)	2 A	2 A	2 A	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 A	1.1 V @ 2 A	1.1 V @ 2 A	1.1 V @ 2 A	1.1 V @ 2 A	1.1 V @ 2 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	5 µA @ 400 V	5 µA @ 400 V	3 µA @ 400 V	3 µA @ 400 V	3 µA @ 1000 V	3 µA @ 400 V
Capacitance @ Vr, F	20 pF @ 4V, 1MHz	25 pF @ 4V, 1MHz	11 pF @ 4V, 1MHz	11 pF @ 4V, 1MHz	11 pF @ 4V, 1MHz	11 pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitute Recommendation: S2G-HF (Comchip Technology)

The S2G-HF is the most direct substitute for the GS2G-LTP. Both parts share identical electrical specifications across all critical parameters: 400 V reverse voltage, 2 A average rectified current, 1.1 V forward voltage drop, and standard recovery speed. The S2G-HF maintains Active product status, ensuring long-term availability and supply chain continuity. Packaging, compliance certifications (ROHS3, EAR99), and moisture sensitivity ratings are identical. The S2G-HF is suitable for direct replacement in existing designs without circuit modification.

Secondary Substitute Options: SA2G-E3/5AT, SA2G-E3/61T, SA2G-M3/5AT, SA2G-M3/61T (Vishay General Semiconductor - Diodes Division)

All four Vishay SA2G variants meet the core electrical and mechanical requirements. These parts are manufactured by a major semiconductor supplier with established quality and reliability standards. All variants maintain Active product status and ROHS3 compliance. The SA2G series exhibits lower reverse leakage current (3 µA versus 5 µA) and reduced junction capacitance (11 pF versus 20 pF), which may provide performance benefits in specific circuit topologies. These characteristics do not compromise substitution compatibility.

Availability Consideration:

The SA2G-E3/61T variant offers the highest inventory level (30,400 pcs), followed by SA2G-E3/5AT (21,639 pcs), making these options suitable for high-volume production requirements. The S2G-HF (750 pcs) and SA2G-M3/61T (1,105 pcs) are appropriate for moderate-volume applications.

Frequently Asked Questions (FAQ)

Q: Can the S2G-HF be used as a direct replacement for the GS2G-LTP without circuit redesign?

A: Yes. The S2G-HF is electrically and mechanically equivalent to the GS2G-LTP across all critical parameters: reverse voltage, forward current, forward voltage drop, recovery speed, and operating temperature range. Both components use the DO-214AC (SMA) surface mount package. No circuit modification is required.

Q: What is the difference between the Comchip S2G-HF and the Vishay SA2G variants?

A: All parts meet the core 400 V / 2 A specifications. The primary differences are reverse leakage current and junction capacitance. The GS2G-LTP and S2G-HF specify 5 µA reverse leakage at 400 V and 20 pF capacitance. The Vishay SA2G variants specify 3 µA reverse leakage and 11 pF capacitance. These differences reflect manufacturing process variations and do not affect general-purpose rectifier functionality. Selection between these options depends on application-specific requirements for leakage and capacitance performance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant certification, matching the compliance status of the GS2G-LTP. All parts are also classified under ECCN EAR99 and HTSUS 8541.10.0080.

Q: What is the moisture sensitivity level for these diodes?

A: All parts, including the GS2G-LTP and all substitute options, carry Moisture Sensitivity Level (MSL) 1 (Unlimited). This classification indicates no moisture sensitivity restrictions during storage, handling, or assembly.

Q: Which substitute part should I select for high-volume production?

A: The SA2G-E3/61T offers the highest inventory availability (30,400 pcs) and is manufactured by Vishay, a major semiconductor supplier with established supply chain infrastructure. This part is suitable for high-volume applications requiring consistent long-term availability.

Q: Can I mix different substitute parts within the same production batch?

A: All substitute parts are electrically and mechanically equivalent and carry identical compliance certifications. Mixing parts from different manufacturers (Comchip S2G-HF and Vishay SA2G variants) within the same batch is permissible from an engineering standpoint. However, procurement and quality assurance procedures should be followed to ensure traceability and consistency.

Q: What is the operating temperature range for these diodes?

A: All parts, including the GS2G-LTP and all substitutes, operate across a junction temperature range of -55°C to 150°C, suitable for industrial and commercial applications.

Q: Why is the GS2G-LTP marked as "Not For New Designs"?

A: The "Not For New Designs" status indicates the GS2G-LTP has reached end-of-life. New designs should incorporate one of the Active substitute parts listed in this reference. Existing designs using the GS2G-LTP can transition to any of the listed substitutes without functional impact.

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