MURA230T3 Equivalent & Substitute Parts

Part Overview

The MURA230T3 is a general-purpose rectifier diode rated for 300 V DC reverse voltage and 2 A average rectified current in a surface mount SMA package (DO-214AC). This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to support ongoing design requirements, procurement continuity, and system maintenance where the original part number is no longer actively manufactured.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	300 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 2 A
Reverse Recovery Time (trr)	65 ns
Current - Reverse Leakage @ Vr	5 µA @ 300 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	DO-214AC, SMA
Mounting Type	Surface Mount
Operating Temperature - Junction	-65°C ~ 175°C

Substitute Part Grouping Explanation

Substitute parts for the MURA230T3 are identified based on electrical and mechanical parameter equivalence within the general-purpose rectifier diode category. The substitution logic is structured as follows:

Direct Manufacturer Equivalent: MURA230T3G maintains identical electrical specifications across all critical parameters: 300 V reverse voltage rating, 2 A average rectified current, 1.3 V forward voltage drop at 2 A, 65 ns reverse recovery time, and 5 µA reverse leakage current. Both parts share the same base product number (MURA230), manufacturer (onsemi), and package configuration (DO-214AC, SMA). The primary distinction is product status and compliance certification.

Similar Manufacturer Alternative: ES2E, manufactured by SMC Diode Solutions, meets the core electrical requirements with 300 V reverse voltage and 2 A average rectified current ratings. This part operates within the same package standard (DO-214AC, SMA) and mounting type (surface mount). Electrical performance differs in forward voltage (1.25 V @ 2 A versus 1.3 V), reverse recovery time (35 ns versus 65 ns), and operating temperature range (-55°C ~ 150°C versus -65°C ~ 175°C). These differences remain within acceptable substitution parameters for general-purpose rectification applications.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): 300 V
Current - Average Rectified (Io): 2 A
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount

Parameter Comparison

Parameter	MURA230T3	MURA230T3G	ES2E
Manufacturer	onsemi	onsemi	SMC Diode Solutions
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	300 V	300 V	300 V
Current - Average Rectified (Io)	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 2 A	1.3 V @ 2 A	1.25 V @ 2 A
Reverse Recovery Time (trr)	65 ns	65 ns	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 300 V	5 µA @ 300 V	5 µA @ 300 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-65°C ~ 175°C	-65°C ~ 175°C	-55°C ~ 150°C
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Affected

Engineering Selection Recommendations

MURA230T3G is the primary substitute for MURA230T3. This part is manufactured by onsemi, the original equipment manufacturer, and carries identical electrical specifications and operating temperature range. MURA230T3G holds active product status and ROHS3 compliance certification, addressing the obsolescence of the original part while maintaining full electrical and thermal compatibility. This part is suitable for direct replacement in all applications where MURA230T3 was originally specified.

ES2E serves as an alternative substitute when MURA230T3G is unavailable. Manufactured by SMC Diode Solutions, ES2E meets the core voltage and current requirements with identical 300 V reverse voltage and 2 A average rectified current ratings. The part exhibits improved reverse recovery time performance (35 ns versus 65 ns) and lower forward voltage drop (1.25 V versus 1.3 V at 2 A), resulting in reduced power dissipation. The operating temperature range of ES2E (-55°C ~ 150°C) is narrower than the original part; applications requiring operation below -55°C or above 150°C require thermal analysis. ES2E holds ROHS3 compliance and active product status. REACH status is affected for this part, requiring compliance verification in regulated markets.

Selection between MURA230T3G and ES2E depends on availability, supply chain requirements, and application-specific thermal and regulatory constraints.

Frequently Asked Questions (FAQ)

Q: Can MURA230T3G be used as a direct replacement for MURA230T3?

A: Yes. MURA230T3G is a direct equivalent manufactured by onsemi with identical electrical specifications, operating temperature range, and package configuration. The primary difference is product status (active versus obsolete) and RoHS compliance certification.

Q: What are the electrical differences between MURA230T3 and ES2E?

A: Both parts share identical 300 V reverse voltage and 2 A average rectified current ratings. ES2E exhibits lower forward voltage drop (1.25 V versus 1.3 V at 2 A) and faster reverse recovery time (35 ns versus 65 ns). Operating temperature range differs: ES2E operates from -55°C to 150°C, while MURA230T3 operates from -65°C to 175°C.

Q: Are all substitute parts available in the same package?

A: Yes. MURA230T3, MURA230T3G, and ES2E are all packaged in DO-214AC (SMA) surface mount configuration. Packaging options differ by supplier: MURA230T3G is available in Cut Tape and Digi-Reel formats, while ES2E is supplied in Tape & Reel format.

Q: What is the impact of ES2E's narrower operating temperature range?

A: ES2E operates from -55°C to 150°C, compared to MURA230T3's -65°C to 175°C range. Applications requiring junction temperatures below -55°C or above 150°C must verify thermal performance through circuit analysis. For most general-purpose rectification applications operating within standard industrial temperature ranges, this difference is not limiting.

Q: Does ES2E have better performance than MURA230T3?

A: ES2E demonstrates improved reverse recovery time (35 ns versus 65 ns) and lower forward voltage drop (1.25 V versus 1.3 V at 2 A), resulting in reduced switching losses and power dissipation. These characteristics make ES2E suitable for applications where thermal efficiency is a design consideration. However, the narrower operating temperature range must be evaluated against application requirements.

Q: What compliance certifications apply to each substitute part?

A: MURA230T3G holds ROHS3 compliance and REACH unaffected status. ES2E holds ROHS3 compliance but is REACH affected. MURA230T3 is RoHS non-compliant. Regulatory requirements in target markets determine which parts are acceptable for new designs or procurement.

Q: Can ES2E be used in applications originally designed for MURA230T3?

A: ES2E meets the core electrical requirements (300 V reverse voltage, 2 A average rectified current) and shares the same package configuration. Substitution is valid for applications where the operating temperature range (-55°C ~ 150°C) is acceptable and REACH compliance requirements are satisfied. The improved reverse recovery time and lower forward voltage drop provide performance benefits in most general-purpose rectification circuits.

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