RS2MA-13 Equivalent & Substitute Parts

Part Overview

The RS2MA-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 1000 V DC reverse voltage and 1.5 A average rectified current in a surface mount SMA (DO-214AC) package. This part is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

The RS2MA-13 employs standard diode technology with fast recovery characteristics (≤500 ns) suitable for general rectification applications requiring 1 kV voltage rating and 1.5 A current capacity.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1.5 A	V
Speed Classification	Fast Recovery ≤500ns, >200mA	-
Reverse Recovery Time (trr)	500	ns
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	µA
Mounting Type	Surface Mount	-
Package / Case	DO-214AC, SMA	-
Operating Temperature - Junction	-65°C to 150°C	°C
Technology	Standard	-

Substitute Part Grouping Explanation

Substitution of the RS2MA-13 is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 1000 V minimum
Current - Average Rectified (Io): 1.5 A minimum
Package / Case: DO-214AC, SMA (surface mount compatibility)
Mounting Type: Surface Mount

Secondary Compatibility Factors:

Speed Classification: Fast Recovery ≤500ns preferred for equivalent performance
Reverse Recovery Time (trr): ≤500 ns preferred
Operating Temperature Range: Must accommodate application requirements
RoHS Compliance: ROHS3 compliance preferred for regulatory alignment

Parts are grouped into two categories:

Category 1 - Direct Parametric Equivalents (1000 V, 1.5 A, Fast Recovery): These parts match all critical electrical parameters and package requirements of the RS2MA-13.

Category 2 - Functional Substitutes (1000 V, Reduced Current or Modified Recovery): These parts meet voltage and package requirements but differ in current rating, recovery time, or technology classification. Selection requires application-level current and switching frequency analysis.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf @ If [V]	Speed	trr [ns]	Ir @ Vr [µA]	Package	Status	RoHS
RS2MA-13	Diodes Inc.	1000	1.5	1.3 @ 1.5A	Fast ≤500ns	500	5 @ 1000V	DO-214AC, SMA	Discontinued	Non-compliant
RS2MA-13-F	Diodes Inc.	1000	1.5	1.3 @ 1.5A	Fast ≤500ns	500	5 @ 1000V	DO-214AC, SMA	Active	ROHS3
RS2MA	Taiwan Semi.	1000	1.5	1.3 @ 1.5A	Fast ≤500ns	500	5 @ 1000V	DO-214AC, SMA	Active	ROHS3
BYG21M-E3/TR	Vishay	1000	1.5	1.6 @ 1.5A	Fast ≤500ns	120	1 @ 1000V	DO-214AC, SMA	Active	ROHS3
BYG23M-E3/TR	Vishay	1000	1.5	1.7 @ 1A	Fast ≤500ns	75	5 @ 1000V	DO-214AC, SMA	Active	ROHS3
BYG23M-E3/TR3	Vishay	1000	1.5	1.7 @ 1A	Fast ≤500ns	75	5 @ 1000V	DO-214AC, SMA	Active	ROHS3
BYG10M-E3/TR	Vishay	1000	1.5	1.15 @ 1.5A	Standard >500ns	4000	1 @ 1000V	DO-214AC, SMA	Active	ROHS3
STTH110A	STMicroelectronics	1000	1.0	1.7 @ 1A	Fast ≤500ns	75	10 @ 1000V	DO-214AC, SMA	Active	ROHS3
STTH108A	STMicroelectronics	800	1.0	1.65 @ 1A	Fast ≤500ns	75	5 @ 800V	DO-214AC, SMA	Active	ROHS3
RGF1M	onsemi	1000	1.0	1.3 @ 1A	Fast ≤500ns	500	5 @ 1000V	DO-214AC, SMA	Not For New Designs	ROHS3
RS1M	EVVO Semi	1000	1.0	1.3 @ 1A	Fast ≤500ns	500	5 @ 1kV	DO-214AC, SMA	Active	ROHS3

Engineering Selection Recommendations

Tier 1 - Direct Replacement (Recommended for New Designs):

RS2MA-13-F (Diodes Incorporated) is the primary direct replacement. This part maintains identical electrical specifications to the RS2MA-13 while offering active product status and ROHS3 compliance. The packaging format is Tape & Reel (TR), suitable for automated assembly processes.

RS2MA (Taiwan Semiconductor Corporation) provides an alternative direct replacement with identical electrical parameters and active status. This part is available in Tape & Reel packaging with ROHS3 compliance. Lower inventory levels (1200 pcs) compared to RS2MA-13-F (765400 pcs) may affect procurement lead times.

Tier 2 - Parametric Equivalents with Modified Characteristics:

BYG21M-E3/TR and BYG23M-E3/TR (Vishay) meet the 1000 V, 1.5 A core requirements with faster recovery times (120 ns and 75 ns respectively). These parts employ avalanche diode technology rather than standard technology. Forward voltage specifications differ (1.6 V and 1.7 V respectively). Selection is appropriate for applications where reduced reverse recovery time provides performance benefits.

BYG23M-E3/TR3 (Vishay) is functionally identical to BYG23M-E3/TR with equivalent electrical specifications and active product status.

BYG10M-E3/TR (Vishay) meets voltage and current requirements but employs standard recovery technology with significantly longer reverse recovery time (4000 ns). This part is suitable only for low-frequency rectification applications where switching speed is not critical.

Tier 3 - Reduced Current Substitutes (Application-Dependent):

STTH110A (STMicroelectronics), RGF1M (onsemi), and RS1M (EVVO Semi) are rated for 1000 V but with reduced current capacity (1.0 A versus 1.5 A). These parts are suitable only for applications where the actual load current does not exceed 1.0 A. RGF1M carries "Not For New Designs" status and should be avoided for new product development.

Tier 4 - Voltage-Reduced Substitute (Limited Applicability):

STTH108A (STMicroelectronics) is rated for 800 V maximum reverse voltage with 1.0 A current capacity. This part is suitable only for applications where the actual reverse voltage does not exceed 800 V and load current does not exceed 1.0 A.

Compliance Considerations:

All recommended substitutes carry ROHS3 compliance status. The original RS2MA-13 is RoHS non-compliant. Transition to ROHS3-compliant alternatives (RS2MA-13-F or RS2MA) is required for regulatory alignment in new designs and procurement cycles.

Frequently Asked Questions (FAQ)

Q: Can RS2MA-13-F be used as a direct replacement for RS2MA-13?

A: Yes. RS2MA-13-F is electrically and mechanically identical to RS2MA-13, with matching voltage (1000 V), current (1.5 A), forward voltage (1.3 V @ 1.5 A), and recovery time (500 ns) specifications. The primary differences are product status (Active versus Discontinued) and RoHS compliance (ROHS3 versus non-compliant). RS2MA-13-F is the recommended replacement for new designs and ongoing procurement.

Q: What is the difference between RS2MA-13-F and RS2MA?

A: Both parts are direct electrical equivalents with identical specifications. RS2MA-13-F is manufactured by Diodes Incorporated, while RS2MA is manufactured by Taiwan Semiconductor Corporation. RS2MA-13-F has significantly higher inventory availability (765400 pcs versus 1200 pcs), which may affect procurement lead times and pricing. Both carry ROHS3 compliance and active product status.

Q: Can Vishay BYG21M-E3/TR or BYG23M-E3/TR be used instead of RS2MA-13?

A: These parts meet the 1000 V and 1.5 A requirements and are housed in the same DO-214AC (SMA) package. However, they employ avalanche diode technology with significantly faster recovery times (120 ns and 75 ns respectively, compared to 500 ns for RS2MA-13). Forward voltage specifications also differ (1.6 V and 1.7 V versus 1.3 V). These parts are suitable for applications where faster switching is beneficial, but circuit-level validation is required to confirm compatibility with existing designs.

Q: Why are STTH110A and RGF1M listed as substitutes if they have lower current ratings?

A: These parts are listed because they meet the 1000 V voltage requirement and are housed in compatible DO-214AC (SMA) packages. However, their 1.0 A current rating is below the 1.5 A specification of RS2MA-13. These parts are suitable only for applications where the actual load current does not exceed 1.0 A. For applications requiring the full 1.5 A capacity, these parts are not appropriate substitutes.

Q: Is STTH108A a suitable substitute?

A: STTH108A is not a suitable substitute for general applications. While it shares the DO-214AC (SMA) package and 1.0 A current rating, its maximum reverse voltage is 800 V, which is below the 1000 V specification of RS2MA-13. This part is suitable only for applications where the actual reverse voltage does not exceed 800 V and load current does not exceed 1.0 A.

Q: What does "Fast Recovery ≤500ns" mean in the context of diode selection?

A: Fast recovery refers to the reverse recovery time (trr), which is the time required for a diode to transition from forward conduction to reverse blocking when the applied voltage reverses. A fast recovery time of 500 ns or less indicates the diode can switch states quickly, reducing switching losses and enabling operation at higher frequencies. This specification is important for rectification circuits operating at elevated switching frequencies.

Q: Are all substitute parts RoHS compliant?

A: All recommended substitute parts carry ROHS3 compliance status. The original RS2MA-13 is RoHS non-compliant. For new product designs and procurement cycles subject to RoHS regulations, transition to ROHS3-compliant alternatives is required.

Q: What is the significance of the packaging designation "Tape & Reel (TR)" versus "Cut Tape (CT) & Digi-Reel®"?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, optimized for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® packaging supplies smaller quantities on cut tape segments, suitable for lower-volume production or prototyping. Both formats are compatible with standard surface mount assembly equipment. Selection depends on production volume and procurement requirements.

Q: Can BYG10M-E3/TR be used as a cost-effective alternative?

A: BYG10M-E3/TR meets the 1000 V and 1.5 A requirements but employs standard recovery technology with a reverse recovery time of 4000 ns, significantly longer than the 500 ns specification of RS2MA-13. This part is suitable only for low-frequency rectification applications (typically below 100 kHz) where switching speed is not critical. For applications requiring fast switching or operating at elevated frequencies, this part is not appropriate.

Q: What is the operating temperature range consideration for substitution?

A: RS2MA-13 operates from -65°C to 150°C. Most substitute parts operate from -55°C to 150°C or have a maximum junction temperature of 175°C. For applications requiring operation below -55°C, the original RS2MA-13 specification must be verified. For most commercial and industrial applications operating within -55°C to 150°C, substitute parts are compatible.

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