S2M R5G Equivalent & Substitute Parts

Part Overview

The S2M R5G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 1000 V DC reverse voltage and 2 A average rectified current in a DO-214AA (SMB) surface mount package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components that maintain electrical and mechanical compatibility for existing designs or new production requirements.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 2 A	V
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	1	µA @ 1000 V
Capacitance @ Vr, F	30	pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the S2M R5G are classified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 1000 V minimum
Current - Average Rectified (Io): 2 A or greater
Package / Case: DO-214AA (SMB) or compatible surface mount package
Operating Temperature - Junction: -55°C to 150°C or wider range
RoHS Status: ROHS3 Compliant
Technology: Standard recovery characteristics

Parametric Equivalent: Parts with identical electrical ratings (1000 V, 2 A) in the same or compatible package.

Similar Parts: Parts with the same voltage rating (1000 V) but different current ratings (1.5 A or 3 A) or different package configurations (SMA vs. SMB), suitable for applications where current requirements differ or package footprint alternatives are acceptable.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Package	Temp Range [°C]	Product Status
S2M R5G	Taiwan Semiconductor Corporation	1000	2	1.15 @ 2 A	DO-214AA (SMB)	-55 to 150	Discontinued
S2M	MDD	1000	2	1.15 @ 2 A	SOD-214AC (SMA)	-55 to 150	Active
CGRB207-G	Comchip Technology	1000	2	1.1 @ 2 A	DO-214AA (SMB)	-40 to 150	Active
CGRB307-G	Comchip Technology	1000	3	1.1 @ 3 A	DO-214AA (SMB)	-40 to 150	Active
RS2M-13-F	Diodes Incorporated	1000	1.5	1.3 @ 1.5 A	DO-214AA (SMB)	-65 to 150	Active
RS2MA-13-F	Diodes Incorporated	1000	1.5	1.3 @ 1.5 A	DO-214AC (SMA)	-65 to 150	Active
S2M-13-F	Diodes Incorporated	1000	1.5	1.15 @ 1.5 A	DO-214AA (SMB)	-65 to 150	Active
S2M-LTP	Micro Commercial Co	1000	2	1.15 @ 2 A	DO-214AA (SMB)	-55 to 150	Active
S2MA-13-F	Diodes Incorporated	1000	1.5	1.15 @ 1.5 A	DO-214AC (SMA)	-65 to 150	Active
S2MHE3_A/H	Vishay General Semiconductor - Diodes Division	1000	1.5	1.15 @ 1.5 A	DO-214AA (SMB)	-55 to 150	Active
S2MHE3_A/I	Vishay General Semiconductor - Diodes Division	1000	1.5	1.15 @ 1.5 A	DO-214AA (SMB)	-55 to 150	Active

Engineering Selection Recommendations

Direct Replacement (Same Electrical and Package Specifications):

The S2M-LTP (Micro Commercial Co) provides the closest match to the S2M R5G. Both components feature 1000 V reverse voltage, 2 A average rectified current, 1.15 V forward voltage at 2 A, and DO-214AA (SMB) package configuration. The S2M-LTP is active in production and ROHS3 compliant, making it suitable for direct substitution in existing designs without circuit modification.

Package-Compatible Alternatives (Same Electrical Ratings, Different Package):

The S2M (MDD) offers identical electrical specifications (1000 V, 2 A, 1.15 V forward voltage) but in a SOD-214AC (SMA) package. This alternative is applicable when PCB layout permits the smaller SMA footprint or when SMA package availability is preferred.

Higher Current Rating Alternative (Same Voltage, Increased Current Capacity):

The CGRB307-G (Comchip Technology) provides 1000 V reverse voltage with 3 A average rectified current in DO-214AA (SMB) package. This part is suitable for applications requiring higher current capacity while maintaining the same voltage rating and package form factor. Forward voltage is 1.1 V at 3 A, which is lower than the original specification.

Lower Current Rating Alternatives (Same Voltage, Reduced Current Capacity):

Parts rated for 1.5 A (RS2M-13-F, S2M-13-F, S2MA-13-F, S2MHE3_A/H, S2MHE3_A/I) are applicable only in circuits where the maximum current requirement does not exceed 1.5 A. These parts maintain 1000 V reverse voltage rating and are available in both DO-214AA (SMB) and DO-214AC (SMA) packages.

Automotive-Grade Alternative:

The S2MHE3_A/H and S2MHE3_A/I (Vishay General Semiconductor - Diodes Division) are AEC-Q101 qualified automotive-grade diodes with 1000 V, 1.5 A specifications in DO-214AA (SMB) package. These parts are suitable for applications requiring automotive qualification standards.

Product Status Consideration:

All recommended substitutes are active in production status, ensuring long-term availability and supply chain continuity compared to the discontinued S2M R5G.

Frequently Asked Questions (FAQ)

Q: Can the S2M-LTP directly replace the S2M R5G without circuit modification?

A: Yes. The S2M-LTP matches the S2M R5G in voltage rating (1000 V), current rating (2 A), forward voltage (1.15 V @ 2 A), and package (DO-214AA/SMB). Both components operate across the same temperature range (-55°C to 150°C) and are ROHS3 compliant. Direct substitution is electrically and mechanically compatible.

Q: What is the difference between DO-214AA (SMB) and DO-214AC (SMA) packages?

A: DO-214AA (SMB) and DO-214AC (SMA) are different surface mount package outlines. SMB is larger than SMA. Parts specified for SMB package cannot be directly substituted with SMA package variants without PCB layout redesign. The S2M (MDD) in SMA package requires PCB footprint modification compared to the original SMB design.

Q: Can I use the CGRB307-G (3 A rated) instead of the S2M R5G (2 A rated)?

A: The CGRB307-G is electrically compatible at the 1000 V voltage level and uses the same DO-214AA (SMB) package. However, it is rated for 3 A average rectified current, which exceeds the original 2 A specification. This part is suitable only if the circuit design permits higher current capacity. The lower forward voltage (1.1 V @ 3 A vs. 1.15 V @ 2 A) may affect circuit performance in voltage-sensitive applications.

Q: Can I use a 1.5 A rated diode in a circuit designed for 2 A?

A: No. Parts rated for 1.5 A (RS2M-13-F, S2M-13-F, S2MA-13-F, S2MHE3_A/H, S2MHE3_A/I) are not suitable for circuits requiring 2 A average rectified current. Using an undersized component creates risk of thermal stress, reduced component life, and potential circuit failure. These parts are applicable only in circuits where maximum current requirement does not exceed 1.5 A.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates the component meets Restriction of Hazardous Substances Directive requirements, restricting the use of specific hazardous materials including lead, mercury, cadmium, and certain flame retardants. All recommended substitutes are ROHS3 compliant, ensuring regulatory compliance for new designs and production.

Q: Are the Vishay S2MHE3_A/H and S2MHE3_A/I parts interchangeable?

A: Both S2MHE3_A/H and S2MHE3_A/I are AEC-Q101 qualified automotive-grade diodes with identical electrical specifications (1000 V, 1.5 A, 1.15 V forward voltage) and DO-214AA (SMB) package. The designation suffix indicates different qualification or manufacturing batches. Both are electrically interchangeable within automotive applications requiring 1.5 A current capacity.

Q: What is reverse recovery time and why does it matter?

A: Reverse recovery time (trr) is the time required for a diode to stop conducting when reverse bias is applied. The S2M R5G specifies 1.5 µs. Substitute parts with different trr values (such as RS2M-13-F at 500 ns) may affect switching performance in high-frequency circuits. For standard rectification applications, variations in trr within the specified ranges are generally acceptable.

Q: Can I use the S2M (MDD) in SMA package if I modify the PCB?

A: Yes, the S2M (MDD) in DO-214AC (SMA) package is electrically equivalent to the S2M R5G (1000 V, 2 A, 1.15 V forward voltage). PCB layout modification is required to accommodate the different package footprint. This substitution is valid only if design constraints permit package change and PCB redesign is feasible.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message