1N5391-AP Equivalent & Substitute Parts

Part Overview

The 1N5391-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 1.5 A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The diode operates across a junction temperature range of -55°C to 150°C and complies with ROHS3 standards.

Substiute Parts

1N5391-AP

Micro Commercial CoIn Stock: 11661N5391-AP Datasheet

Current PartRFQ

1N5391G A0G

Taiwan Semiconductor CorporationIn Stock: 8251N5391G A0G Datasheet

Parametric EquivalentRFQ

1N5391GHA0G

Taiwan Semiconductor CorporationIn Stock: 7021N5391GHA0G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1N5391-AP is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 1.5 A
• Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1.5 A
• Speed: Standard Recovery >500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 5 µA @ 50 V
• Mounting Type: Through Hole
• Package / Case: DO-204AC, DO-15, Axial
• Operating Temperature - Junction: -55°C to 150°C
• RoHS Status: ROHS3 Compliant

All substitute parts listed maintain these electrical specifications and physical package compatibility. Substitute parts are grouped by manufacturer and product status (Active vs. Obsolete). Minor variations in capacitance values (15 pF vs. 20 pF @ 4V, 1MHz) do not affect substitution eligibility, as this parameter remains within acceptable tolerance for general-purpose rectification applications.

Parameter Comparison

Engineering Selection Recommendations

1N5391G A0G (Taiwan Semiconductor Corporation)

This substitute part is electrically and mechanically equivalent to the 1N5391-AP. The part maintains Active product status, ensuring long-term availability and supply chain continuity. It is ROHS3 compliant and carries unlimited moisture sensitivity rating. The minor reduction in capacitance (15 pF vs. 20 pF) does not impact functional performance in standard rectification circuits. This part is suitable for general-purpose applications where automotive qualification is not required.

1N5391GHA0G (Taiwan Semiconductor Corporation)

This substitute part is electrically and mechanically equivalent to the 1N5391-AP and includes automotive-grade qualification (AEC-Q101). The part maintains Active product status and ROHS3 compliance. The automotive qualification and AEC-Q101 certification make this part suitable for applications requiring automotive-grade component standards. The minor reduction in capacitance (15 pF vs. 20 pF) does not impact functional performance. This part is recommended for automotive and mission-critical applications.

Frequently Asked Questions (FAQ)

Q: Can the 1N5391G A0G and 1N5391GHA0G be used interchangeably with the 1N5391-AP?

A: Both substitute parts are electrically and mechanically equivalent to the 1N5391-AP across all critical parameters: 50 V reverse voltage, 1.5 A average rectified current, 1.1 V forward voltage drop, standard recovery speed, and DO-15 through-hole package. Direct substitution is supported without circuit modification.

Q: What is the difference between the two substitute parts?

A: The 1N5391GHA0G includes automotive-grade qualification (AEC-Q101) and is designated as an automotive component. The 1N5391G A0G is a standard-grade equivalent. Both parts are electrically identical and maintain the same electrical specifications. Selection between them depends on application requirements for automotive certification.

Q: Why does the capacitance differ between the main part and substitutes?

A: The 1N5391-AP specifies 20 pF capacitance while the substitute parts specify 15 pF, both measured at 4 V and 1 MHz. This variation falls within acceptable tolerance for general-purpose rectifier diodes and does not affect substitution eligibility or circuit performance in standard rectification applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 1N5391-AP, 1N5391G A0G, and 1N5391GHA0G are all ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Q: What is the operating temperature range for these diodes?

A: All parts, including the main part and substitutes, operate across a junction temperature range of -55°C to 150°C.

Q: Why is the 1N5391-AP listed as obsolete?

A: The 1N5391-AP is classified as obsolete by the original manufacturer (Micro Commercial Co). The substitute parts from Taiwan Semiconductor Corporation maintain Active product status, ensuring continued availability and supply chain support.

Q: Can these diodes be used in high-frequency switching applications?

A: These are standard-recovery rectifier diodes with recovery time greater than 500 ns at currents exceeding 200 mA. They are designed for general-purpose rectification and are not optimized for high-frequency switching applications.