SF15G A0G Equivalent & Substitute Parts

Part Overview

The SF15G A0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 300 V DC reverse voltage and 1 A average rectified current in a through-hole DO-204AL (DO-41) axial package. This component is classified as Active and complies with RoHS3 and REACH standards.

Substitute parts become necessary when the SF15G A0G reaches end-of-life status, when inventory constraints occur, or when design requirements shift between through-hole and surface-mount technologies. The substitute parts listed maintain electrical compatibility within the 300 V / 1 A rectifier diode category while offering alternative packaging and performance characteristics.

Substiute Parts

SF15G A0G

Taiwan Semiconductor CorporationIn Stock: 990SF15G A0G Datasheet

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MUR130G

onsemiIn Stock: 950MUR130G Datasheet

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NRVA4003T3G

onsemiIn Stock: 62409NRVA4003T3G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SF15G A0G is determined by the following electrical and mechanical parameters:

Primary Compatibility Criteria:

• Voltage - DC Reverse (Vr) (Max): 300 V minimum
• Current - Average Rectified (Io): 1 A minimum
• Technology: Standard rectifier diode technology
• RoHS3 Compliance: Required
• REACH Status: Unaffected

Secondary Considerations:

• Reverse Recovery Time (trr): Fast recovery characteristics (≤ 500 ns) preferred for switching applications
• Forward Voltage (Vf): Acceptable range 1.1 V to 1.3 V @ 1 A
• Reverse Leakage Current: 5 µA to 10 µA @ 300 V
• Operating Temperature Range: Minimum -55°C to 150°C

Package Flexibility:

• Through-hole axial packages (DO-204AL, DO-41) are directly interchangeable
• Surface-mount packages (SMA, DO-214AC) require PCB redesign but maintain electrical compatibility

The substitute parts MUR130G and NRVA4003T3G meet the core electrical requirements while offering different packaging and performance trade-offs.

Parameter Comparison

Engineering Selection Recommendations

SF15G A0G (Primary Selection)

The SF15G A0G is the recommended choice for new designs and ongoing production. This part maintains Active product status, ensuring long-term availability and supply chain stability. It delivers fast recovery characteristics (35 ns trr) suitable for switching applications and operates across the full industrial temperature range (-55°C to 150°C). RoHS3 compliance and REACH unaffected status satisfy regulatory requirements.

MUR130G (Through-Hole Substitute)

The MUR130G provides electrical equivalence in through-hole axial packaging and maintains fast recovery performance (75 ns trr). However, this part carries Obsolete product status, indicating discontinued manufacturing and limited future availability. The extended operating temperature range (-65°C to 175°C) offers thermal margin beyond the main part. Selection of MUR130G is appropriate only when existing inventory is available and long-term supply is not a requirement. RoHS3 compliance is maintained.

NRVA4003T3G (Surface-Mount Substitute)

The NRVA4003T3G provides electrical equivalence in surface-mount SMA packaging and features the lowest forward voltage (1.1 V @ 1 A) among the three options. This part carries Not For New Designs status, restricting its use to legacy system maintenance or repair applications. Standard recovery characteristics (> 500 ns) differ from the fast recovery profile of the main part, making it unsuitable for high-frequency switching circuits. The part includes AEC-Q101 automotive qualification. Selection requires PCB redesign to accommodate surface-mount technology. RoHS3 compliance is maintained.

Frequently Asked Questions (FAQ)

Q: Can MUR130G directly replace SF15G A0G in existing through-hole PCB designs?

A: Yes. Both parts use DO-204AL (DO-41) axial through-hole packaging and share identical pinout. Electrical parameters (300 V, 1 A, fast recovery) are compatible. However, MUR130G carries Obsolete status, limiting future availability.

Q: What is the primary difference between SF15G A0G and NRVA4003T3G?

A: The primary difference is packaging technology. SF15G A0G uses through-hole axial mounting; NRVA4003T3G uses surface-mount SMA. NRVA4003T3G also exhibits standard recovery characteristics (> 500 ns) versus fast recovery (35 ns) in the main part. PCB redesign is required for substitution.

Q: Is NRVA4003T3G suitable for high-frequency switching applications?

A: No. NRVA4003T3G is classified as standard recovery (> 500 ns), making it unsuitable for high-frequency switching circuits. SF15G A0G and MUR130G both provide fast recovery (≤ 500 ns) performance required for switching applications.

Q: What does "Not For New Designs" status mean for NRVA4003T3G?

A: This status indicates the manufacturer does not recommend this part for new product development. It is restricted to legacy system support, repair, and maintenance applications. New designs should use SF15G A0G or equivalent active-status alternatives.

Q: Are all three parts RoHS3 compliant?

A: Yes. SF15G A0G, MUR130G, and NRVA4003T3G are all ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What is the reverse recovery time difference between SF15G A0G and MUR130G?

A: SF15G A0G has a reverse recovery time of 35 ns, while MUR130G is 75 ns. The faster recovery in SF15G A0G reduces switching losses in high-frequency applications.

Q: Can NRVA4003T3G be used in place of SF15G A0G without circuit modification?

A: No. NRVA4003T3G requires PCB redesign due to surface-mount SMA packaging versus through-hole axial. Additionally, standard recovery characteristics may affect circuit performance in switching applications.

Q: What is the temperature operating range for each part?

A: SF15G A0G and NRVA4003T3G: -55°C to 150°C. MUR130G: -65°C to 175°C. MUR130G provides extended low-temperature and high-temperature operation.