MURA260T3 Equivalent & Substitute Parts Reference

Part Overview

The MURA260T3 is a general-purpose rectifier diode manufactured by onsemi, rated for 600 V DC reverse voltage and 2 A average rectified current in a surface mount SMA package (DO-214AC). This part is classified as obsolete, which necessitates identification of equivalent and substitute components for new designs and ongoing production requirements. The part exhibits fast recovery characteristics with a reverse recovery time of 75 ns and operates across a junction temperature range of -65°C to 175°C. Due to its obsolete status and non-RoHS3 compliance, alternative parts with active product status and improved regulatory compliance are required for continued system support.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.45	V @ 2 A
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	75	ns
Current - Reverse Leakage @ Vr	5	µA @ 600 V
Mounting Type	Surface Mount	—
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-65 to 175	°C
RoHS Status	Non-compliant	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the MURA260T3 is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 600 V
Current - Average Rectified (Io): 2 A
Package / Case: DO-214AC, SMA (surface mount compatibility)
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Mounting Type: Surface Mount

Substitution Categories:

Direct Manufacturer Equivalent: MURA260T3G (onsemi) maintains identical electrical specifications and package format. This part is the direct successor with active product status and RoHS3 compliance.

Parametric Equivalent: SURA8260T3G-GA01 (onsemi) provides identical electrical performance with automotive-grade qualification (AEC-Q101) for applications requiring enhanced reliability standards.

Similar Substitutes: Parts including ES2J-LTP, FS2J-LTP, STTH2R06A, and others meet the core voltage and current requirements within the DO-214AC SMA package but exhibit variations in forward voltage, reverse recovery time, reverse leakage current, and operating temperature ranges. These variations must be evaluated against specific application requirements.

Current-Reduced Alternatives: Parts such as STTH1R06A and STTH1L06A provide 1 A rated current, suitable only for applications where the 2 A requirement can be reduced or where parallel configurations are implemented.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Temp Range [°C]	Product Status	RoHS Status
MURA260T3	onsemi	600	2	1.45 @ 2A	75	5 @ 600V	DO-214AC, SMA	-65 to 175	Obsolete	Non-compliant
MURA260T3G	onsemi	600	2	1.45 @ 2A	75	5 @ 600V	DO-214AC, SMA	-65 to 175	Active	RoHS3 Compliant
SURA8260T3G-GA01	onsemi	600	2	1.45 @ 2A	75	5 @ 600V	DO-214AC, SMA	-65 to 175	Active	RoHS3 Compliant
ES2J-LTP	Micro Commercial Co	600	2	1.7 @ 2A	35	5 @ 600V	DO-214AC, SMA	-65 to 175	Active	RoHS3 Compliant
FS2J-LTP	Micro Commercial Co	600	2	—	250	5 @ 600V	DO-214AC, SMA	-50 to 150	Active	RoHS3 Compliant
STTH2R06A	STMicroelectronics	600	2	1.7 @ 2A	50	2 @ 600V	DO-214AC, SMA	-40 to 175	Active	RoHS3 Compliant
STTH1R06A	STMicroelectronics	600	1	1.7 @ 1A	45	1 @ 600V	DO-214AC, SMA	-40 to 175	Active	RoHS3 Compliant
STTH1L06A	STMicroelectronics	600	1	1.3 @ 1A	80	1 @ 600V	DO-214AC, SMA	-65 to 175	Active	RoHS3 Compliant
RR2L6SDDTE25	Rohm Semiconductor	600	2	1.1 @ 2A	—	10 @ 600V	DO-214AC, SMA	—	Not For New Designs	RoHS3 Compliant
RS2JAHR3G	Taiwan Semiconductor Corporation	600	1.5	1.3 @ 1.5A	250	5 @ 600V	DO-214AC, SMA	-55 to 150	Discontinued at DiGi Electronics	RoHS3 Compliant
ES2J	Good-Ark Semiconductor	600	2	1.7 @ 2A	35	10 @ 600V	DO-214AA, SMB	-55 to 150	Active	RoHS3 Compliant

Engineering Selection Recommendations

Tier 1 - Direct Replacement (Recommended):

MURA260T3G is the primary recommended substitute. This part is manufactured by onsemi (original manufacturer), maintains identical electrical specifications to the obsolete MURA260T3, and achieves RoHS3 compliance. Product status is active with substantial inventory availability (35,300 pcs). This selection eliminates design re-qualification requirements and ensures continuity of electrical performance.

Tier 2 - Automotive-Grade Equivalent:

SURA8260T3G-GA01 provides identical electrical performance with automotive-grade qualification per AEC-Q101. This part is suitable for applications requiring enhanced reliability standards or automotive system integration. Product status is active with limited inventory (644 pcs). Selection of this part requires confirmation that automotive-grade qualification is necessary for the application.

Tier 3 - Active Alternatives with Specification Variations:

STTH2R06A (STMicroelectronics) maintains the 2 A current rating and 600 V voltage rating with improved reverse recovery time (50 ns versus 75 ns) and lower reverse leakage current (2 µA versus 5 µA). Forward voltage is higher at 1.7 V versus 1.45 V. Operating temperature minimum is -40°C versus -65°C. This part is suitable for applications where the lower temperature limit is acceptable and where improved switching performance is beneficial. Inventory is substantial (19,577 pcs).

ES2J-LTP (Micro Commercial Co) maintains 2 A current and 600 V voltage with significantly faster reverse recovery time (35 ns). Forward voltage is 1.7 V. Operating temperature range matches the original part (-65°C to 175°C). This part is suitable for high-frequency switching applications where recovery time is critical. Inventory is moderate (4,680 pcs).

Tier 4 - Reduced Current Alternatives:

STTH1R06A and STTH1L06A are rated for 1 A only and are suitable only for applications where the 2 A requirement can be reduced or where parallel device configurations are implemented. These parts should not be selected as direct replacements without circuit re-analysis.

Tier 5 - Not Recommended:

RR2L6SDDTE25 carries product status "Not For New Designs" and should not be selected for new applications. RS2JAHR3G is discontinued at DiGi Electronics and carries reduced current rating (1.5 A). FS2J-LTP exhibits significantly longer reverse recovery time (250 ns) and reduced operating temperature range (-50°C to 150°C), limiting suitability for general replacement.

Frequently Asked Questions (FAQ)

Q: Can MURA260T3G be used as a direct replacement for MURA260T3 without circuit modification?

A: Yes. MURA260T3G maintains identical electrical specifications across all critical parameters: 600 V reverse voltage, 2 A average rectified current, 1.45 V forward voltage at 2 A, 75 ns reverse recovery time, and identical package format (DO-214AC, SMA). No circuit modification is required. The primary difference is product status (active versus obsolete) and RoHS3 compliance.

Q: What is the significance of the reverse recovery time (trr) parameter when selecting a substitute?

A: Reverse recovery time determines the speed at which the diode transitions from conducting to blocking state. The MURA260T3 specifies 75 ns. Substitutes with shorter trr values (such as ES2J-LTP at 35 ns or STTH2R06A at 50 ns) provide faster switching, reducing switching losses and enabling higher-frequency operation. Substitutes with longer trr values (such as FS2J-LTP at 250 ns) are suitable only for lower-frequency applications. Selection must align with circuit switching frequency requirements.

Q: Why does ES2J have a different package designation (DO-214AA, SMB) compared to the original part (DO-214AC, SMA)?

A: DO-214AA (SMB) and DO-214AC (SMA) are distinct surface mount packages with different physical dimensions and land patterns. Although both are surface mount rectifier packages, they are not mechanically interchangeable. ES2J cannot be used as a direct replacement without PCB redesign. ES2J-LTP, however, uses the DO-214AC (SMA) package and is mechanically compatible.

Q: What does RoHS3 compliance mean, and why is it important?

A: RoHS3 compliance indicates conformance to the Restriction of Hazardous Substances Directive, which restricts the use of specific hazardous materials including lead, cadmium, and mercury in electrical and electronic equipment. The original MURA260T3 is RoHS non-compliant. All recommended substitutes (MURA260T3G, SURA8260T3G-GA01, STTH2R06A, ES2J-LTP) are RoHS3 compliant, meeting current regulatory requirements for new product designs and manufacturing in regulated markets.

Q: Can STTH1R06A or STTH1L06A be used to replace the 2 A rated MURA260T3?

A: Direct replacement is not recommended. STTH1R06A and STTH1L06A are rated for 1 A average rectified current, which is 50% of the MURA260T3 rating. These parts can be used only if the application circuit is re-analyzed to confirm that 1 A is sufficient, or if two devices are configured in parallel to achieve 2 A capacity. Parallel configuration requires additional circuit design considerations including current-sharing resistors and thermal management.

Q: What is the difference between "Active," "Obsolete," and "Not For New Designs" product status classifications?

A: Active status indicates the part is currently manufactured and available for new designs. Obsolete status indicates the part is no longer manufactured and existing inventory is depleted. "Not For New Designs" indicates the part is still available but the manufacturer recommends against its use in new applications, typically due to superior alternatives or planned discontinuation. For new designs, only parts with Active status should be selected.

Q: How does forward voltage (Vf) variation affect circuit performance?

A: Forward voltage determines the voltage drop across the diode during conduction. The MURA260T3 specifies 1.45 V at 2 A. Substitutes such as STTH2R06A and ES2J-LTP specify 1.7 V at 2 A, representing a 0.25 V increase. In power supply circuits, this increases power dissipation and heat generation. In signal circuits, this may affect voltage regulation. Circuit analysis is required to confirm that the higher forward voltage is acceptable for the specific application.

Q: Is automotive-grade qualification (AEC-Q101) necessary for all applications?

A: No. AEC-Q101 qualification is required only for automotive applications where enhanced reliability and qualification testing are mandated. SURA8260T3G-GA01 carries this qualification. For non-automotive applications, standard-grade parts such as MURA260T3G are appropriate and typically offer lower cost and faster availability.

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