1N5407 Equivalent & Substitute Parts

Part Overview

The 1N5407 is a general-purpose rectifier diode rated for 800 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. Manufactured by SMC Diode Solutions, this component is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design and procurement requirements. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives within acceptable parameter tolerances for the same application category.

Substiute Parts

1N5407

SMC Diode SolutionsIn Stock: 12991N5407 Datasheet

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1N5407G

Taiwan Semiconductor CorporationIn Stock: 44961N5407G Datasheet

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FR306G B0G

Taiwan Semiconductor CorporationIn Stock: 1218FR306G B0G Datasheet

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P300K-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 932P300K-E3/73 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N5407 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Voltage - DC Reverse (Vr) (Max): 800 V minimum
• Current - Average Rectified (Io): 3 A minimum
• Package / Case: DO-201AD, Axial (through-hole mounting)
• Current - Reverse Leakage @ Vr: 5 µA @ 800 V maximum
• Mounting Type: Through Hole

Allowable Variations:

• Voltage - Forward (Vf) (Max) @ If: ±0.2 V tolerance at 3 A
• Speed: Standard or Fast Recovery acceptable
• Operating Temperature - Junction: Range may vary; minimum -50°C and maximum 150°C acceptable
• Capacitance @ Vr, F: ±5 pF variation acceptable

Identified Substitute Parts:

1. 1N5407G (Taiwan Semiconductor Corporation) — Direct equivalent with active product status
2. FR306G B0G (Taiwan Semiconductor Corporation) — Fast recovery variant with equivalent ratings
3. P300K-E3/73 (Vishay General Semiconductor - Diodes Division) — Standard recovery variant with active product status

All substitute parts maintain the 800 V / 3 A rating, DO-201AD package configuration, and 5 µA reverse leakage specification.

Parameter Comparison

Engineering Selection Recommendations

1N5407G (Taiwan Semiconductor Corporation)

The 1N5407G is the primary equivalent substitute for the obsolete 1N5407. This part maintains identical electrical specifications (800 V, 3 A, 5 µA reverse leakage) and package configuration (DO-201AD axial through-hole). The 1N5407G carries active product status and ROHS3 compliance, making it suitable for new designs and ongoing production. Forward voltage is lower (1 V vs. 1.2 V at 3 A), which represents an improvement in efficiency. Operating temperature range is reduced (-55°C to 150°C vs. -65°C to 175°C), which is acceptable for most industrial and commercial applications. This part is recommended as the direct replacement for the 1N5407.

FR306G B0G (Taiwan Semiconductor Corporation)

The FR306G B0G is a fast recovery variant that meets all critical electrical requirements (800 V, 3 A, 5 µA reverse leakage) and maintains the DO-201AD package. This part is active and ROHS3 compliant. The fast recovery characteristic (≤500 ns vs. >500 ns for standard recovery) provides reduced switching losses in high-frequency applications. Forward voltage is slightly elevated (1.3 V vs. 1.2 V at 3 A). This part is suitable for applications requiring improved switching performance within the same voltage and current ratings.

P300K-E3/73 (Vishay General Semiconductor - Diodes Division)

The P300K-E3/73 maintains identical electrical specifications to the original 1N5407 (800 V, 3 A, 1.2 V forward voltage, 5 µA reverse leakage) and package configuration (DO-201AD axial through-hole). This part is active and ROHS3 compliant. Operating temperature range is -50°C to 150°C. This part is suitable for applications where standard recovery characteristics and forward voltage matching are required.

All three substitute parts are available in active product status with REACH compliance and unlimited moisture sensitivity rating, supporting both new designs and legacy system maintenance.

Frequently Asked Questions (FAQ)

Q: Can the 1N5407G directly replace the obsolete 1N5407?

A: Yes. The 1N5407G maintains identical voltage (800 V), current (3 A), reverse leakage (5 µA @ 800 V), and package specifications (DO-201AD axial through-hole). The lower forward voltage (1 V vs. 1.2 V at 3 A) represents an operational improvement. Both parts use standard recovery characteristics. The 1N5407G is active and ROHS3 compliant.

Q: What is the difference between the 1N5407G and FR306G B0G?

A: Both parts meet the 800 V / 3 A specifications and use the DO-201AD package. The primary difference is recovery speed: the 1N5407G uses standard recovery (>500 ns), while the FR306G B0G uses fast recovery (≤500 ns). Fast recovery reduces switching losses in high-frequency circuits. Forward voltage differs slightly (1 V vs. 1.3 V at 3 A). Select FR306G B0G for applications requiring improved switching performance; select 1N5407G for standard applications.

Q: Is the P300K-E3/73 suitable for the same applications as the 1N5407?

A: Yes. The P300K-E3/73 matches the original 1N5407 specifications: 800 V reverse voltage, 3 A average rectified current, 1.2 V forward voltage at 3 A, 5 µA reverse leakage, and DO-201AD axial through-hole package. Both use standard recovery characteristics. Operating temperature range is -50°C to 150°C (vs. -65°C to 175°C for the original), which is acceptable for most industrial and commercial applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 1N5407G, FR306G B0G, and P300K-E3/73 are all ROHS3 compliant. The original 1N5407 RoHS status is not specified. All parts maintain REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity rating.

Q: Can I use these parts interchangeably in existing designs?

A: The 1N5407G and P300K-E3/73 are direct functional equivalents and can be used interchangeably in designs originally specified for the 1N5407. The FR306G B0G can be substituted where fast recovery characteristics provide circuit benefits, but this represents a design change. All three parts use the same DO-201AD axial through-hole package and mount identically on PCBs.

Q: What is the operating temperature range difference, and does it matter?

A: The original 1N5407 operates from -65°C to 175°C. The 1N5407G and FR306G B0G operate from -55°C to 150°C. The P300K-E3/73 operates from -50°C to 150°C. For applications operating within -50°C to 150°C, all substitutes are suitable. For applications requiring operation below -50°C or above 150°C, verify the specific temperature requirements against the substitute part's range.

Q: What does "Standard Recovery >500ns" mean compared to "Fast Recovery ≤500ns"?

A: Recovery speed refers to reverse recovery time (trr), the time required for a diode to stop conducting after the applied voltage reverses. Standard recovery (>500 ns) is typical for general-purpose rectifier diodes. Fast recovery (≤500 ns) reduces switching losses and is beneficial in high-frequency switching applications. For low-frequency rectification, both types function identically.