Equivalent & Substitute Parts for RS2DA-13

Part Overview

The RS2DA-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 200 V DC reverse voltage and 1.5 A average rectified current in a surface mount SMA (DO-214AC) package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing production and maintenance applications. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within acceptable parameter ranges for the same application category.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution of the RS2DA-13 is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a DC reverse voltage rating of 200 V or higher to ensure safe operation within the original circuit design.

Current Rating: Substitute parts are grouped into two categories: (1) exact current match at 1.5 A, and (2) reduced current ratings at 1.0 A. Parts with reduced current ratings are suitable only for applications where the circuit current demand does not exceed the substitute part's rating.

Package Type: The RS2DA-13 uses the DO-214AC (SMA) surface mount package. Substitute parts maintaining this package are direct mechanical replacements. The RS1DB-13 uses the DO-214AA (SMB) package and represents a different form factor.

Speed Classification: All substitute parts maintain fast recovery characteristics (≤ 500ns, > 200mA), ensuring compatibility with switching applications.

Reverse Recovery Time: Substitute parts range from 20 ns to 150 ns. Lower values indicate faster switching performance and reduced switching losses.

Forward Voltage: Forward voltage values range from 900 mV to 1.3 V at rated current. Lower forward voltage reduces power dissipation.

Product Status and Compliance: Active product status and RoHS3 compliance indicate current manufacturing availability and environmental regulatory compliance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [ns]	Package	Product Status	RoHS Status
RS2DA-13	Diodes Incorporated	200	1.5	1.3 @ 1.5A	150	DO-214AC, SMA	Discontinued	Non-compliant
RS2DA-13-F	Diodes Incorporated	200	1.5	1.3 @ 1.5A	150	DO-214AC, SMA	Active	ROHS3 Compliant
STTH1R02A	STMicroelectronics	200	1.5	1.0 @ 1.5A	30	DO-214AC, SMA	Active	ROHS3 Compliant
STTH2R02A	STMicroelectronics	200	2.0	1.0 @ 2A	30	DO-214AC, SMA	Active	ROHS3 Compliant
STTH102A	STMicroelectronics	200	1.0	0.97 @ 1A	20	DO-214AC, SMA	Active	ROHS3 Compliant
STTH102AY	STMicroelectronics	200	1.0	0.97 @ 1A	20	DO-214AC, SMA	Active	ROHS3 Compliant
ESH1DHE3_A/H	Vishay General Semiconductor	200	1.0	0.9 @ 1A	25	DO-214AC, SMA	Active	ROHS3 Compliant
RGF1D	onsemi	200	1.0	1.3 @ 1A	150	DO-214AC, SMA	Not For New Designs	ROHS3 Compliant
RS1DB-13	Diodes Incorporated	200	1.0	1.3 @ 1A	150	DO-214AA, SMB	Discontinued	Non-compliant

Engineering Selection Recommendations

Parametric Equivalent (Direct Replacement):

RS2DA-13-F is the parametric equivalent of RS2DA-13. Both parts share identical electrical specifications (200 V, 1.5 A, 1.3 V forward voltage, 150 ns recovery time) and the same DO-214AC (SMA) package. RS2DA-13-F is currently in active production status with RoHS3 compliance and is available in Tape & Reel packaging. This part is the primary selection for direct substitution in new designs and production runs.

Higher Current Rating Substitute:

STTH2R02A (STMicroelectronics) provides a 2.0 A current rating with the same 200 V voltage specification and DO-214AC (SMA) package. This part is suitable for applications where the circuit current demand does not exceed 1.5 A, as the higher rating provides design margin. STTH2R02A features improved reverse recovery time (30 ns versus 150 ns) and is RoHS3 compliant with active product status.

Matched Current Rating Substitutes:

STTH1R02A (STMicroelectronics) maintains the 1.5 A current rating with 200 V voltage specification and DO-214AC (SMA) package. This part features significantly faster reverse recovery time (30 ns) and lower forward voltage (1.0 V @ 1.5 A), resulting in reduced switching losses and improved thermal performance. RoHS3 compliant with active status.

Reduced Current Rating Substitutes:

STTH102A, STTH102AY, ESH1DHE3_A/H, and RGF1D are rated for 1.0 A average rectified current. These parts are suitable only for applications where the circuit current demand does not exceed 1.0 A. All maintain 200 V voltage rating and DO-214AC (SMA) package compatibility. STTH102AY includes automotive grade qualification. ESH1DHE3_A/H features the lowest forward voltage (0.9 V @ 1 A) and fastest recovery time (25 ns). RGF1D carries "Not For New Designs" status and should be used only for legacy system maintenance.

Alternative Package Substitute:

RS1DB-13 (Diodes Incorporated) provides 200 V, 1.0 A specifications but uses the DO-214AA (SMB) package instead of DO-214AC (SMA). This part is suitable only for applications where the SMB package footprint is acceptable and current demand does not exceed 1.0 A. Both RS1DB-13 and RS2DA-13 are discontinued at DiGi Electronics.

Frequently Asked Questions (FAQ)

Q: Can RS2DA-13-F be used as a direct replacement for RS2DA-13?

A: Yes. RS2DA-13-F is the parametric equivalent with identical electrical specifications (200 V, 1.5 A, 1.3 V forward voltage, 150 ns recovery time) and the same DO-214AC (SMA) package. The primary difference is that RS2DA-13-F is in active production with RoHS3 compliance, whereas RS2DA-13 is discontinued.

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

A: DO-214AC (SMA) and DO-214AA (SMB) are different surface mount package form factors with different footprints and land patterns. They are not mechanically interchangeable on the same PCB. RS1DB-13 uses the SMB package and requires a different PCB layout than the SMA package used by RS2DA-13.

Q: Can I use STTH102A or STTH102AY in place of RS2DA-13?

A: STTH102A and STTH102AY are rated for 1.0 A average rectified current, compared to RS2DA-13's 1.5 A rating. These parts are suitable only if the circuit current demand does not exceed 1.0 A. Both maintain the 200 V voltage rating and DO-214AC (SMA) package. STTH102AY includes automotive grade qualification.

Q: What are the advantages of STTH1R02A over RS2DA-13?

A: STTH1R02A maintains the same 1.5 A current rating and 200 V voltage specification with the same DO-214AC (SMA) package. STTH1R02A features faster reverse recovery time (30 ns versus 150 ns) and lower forward voltage (1.0 V @ 1.5 A versus 1.3 V @ 1.5 A), resulting in reduced switching losses and improved thermal performance. STTH1R02A is in active production with RoHS3 compliance.

Q: Why is RGF1D marked "Not For New Designs"?

A: RGF1D carries a "Not For New Designs" product status designation, indicating that the manufacturer (onsemi) is not recommending this part for new circuit designs. This status typically reflects the availability of superior alternatives or planned discontinuation. RGF1D should be used only for maintenance and repair of existing systems.

Q: Can STTH2R02A be used in applications designed for RS2DA-13?

A: STTH2R02A is rated for 2.0 A average rectified current, compared to RS2DA-13's 1.5 A rating. The higher current rating provides design margin and is suitable for applications where the circuit current demand does not exceed 1.5 A. STTH2R02A maintains the 200 V voltage rating and DO-214AC (SMA) package. The faster reverse recovery time (30 ns) and lower forward voltage (1.0 V @ 2 A) provide improved performance characteristics.

Q: What is the significance of reverse recovery time in diode selection?

A: Reverse recovery time (trr) is the time required for a diode to switch from forward conduction to reverse blocking. Shorter recovery times reduce switching losses and electromagnetic interference in high-frequency applications. RS2DA-13 has a recovery time of 150 ns, while STTH1R02A and STTH2R02A have 30 ns, and STTH102A has 20 ns. Selection depends on the circuit's switching frequency and thermal requirements.

Q: Are all substitute parts RoHS3 compliant?

A: RS2DA-13 and RS1DB-13 are RoHS non-compliant. All other substitute parts listed (RS2DA-13-F, STTH1R02A, STTH2R02A, STTH102A, STTH102AY, ESH1DHE3_A/H, and RGF1D) are RoHS3 compliant. RoHS3 compliance is required for new designs and products destined for European markets.

Q: What is the operating temperature range difference between RS2DA-13 and its substitutes?

A: RS2DA-13 operates from -65°C to 150°C junction temperature. Most substitutes extend the upper limit to 175°C (STTH1R02A, STTH2R02A, STTH102A, STTH102AY, RGF1D) or 175°C with lower limit of -55°C (ESH1DHE3_A/H). Extended temperature ranges provide greater design flexibility for high-temperature applications.

Q: Can ESH1DHE3_A/H be used in automotive applications?

A: Yes. ESH1DHE3_A/H is qualified to AEC-Q101 automotive standard and carries an automotive grade designation. This part is suitable for automotive applications requiring automotive-qualified components. STTH102AY also carries automotive grade designation. Other substitutes do not have automotive qualification.

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