1N5391GP-TP Equivalent & Substitute Parts

Part Overview

The 1N5391GP-TP 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 This component is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary for applications requiring continued support, legacy system maintenance, or when primary inventory becomes unavailable.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.4 V @ 1.5 A	V
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	5	µA @ 50 V
Capacitance @ Vr, F	15	pF @ 4V, 1MHz
Package / Case	DO-204AC, DO-15, Axial	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the 1N5391GP-TP are identified based on strict electrical and mechanical parameter matching within the general-purpose rectifier diode category. The following parameters determine substitution eligibility:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 50 V
Current - Average Rectified (Io): 1.5 A
Voltage - Forward (Vf) (Max) @ If: 1.4 V @ 1.5 A
Package / Case: DO-204AC, DO-15, Axial (through-hole mounting)
Operating Temperature - Junction: -55°C to 150°C
RoHS Status: ROHS3 Compliant

Secondary Parameters (Allowable Variation):

Current - Reverse Leakage @ Vr: ≤5 µA @ 50 V
Capacitance @ Vr, F: ≤25 pF @ 4V, 1MHz
Speed: Standard Recovery >500ns, > 200mA (Io)

Parts meeting all critical parameters and maintaining compliance certifications are classified as parametric equivalents.

Parameter Comparison

Parameter	1N5391GP-TP (Micro Commercial Co)	PG5391_R2_00001 (Panjit International Inc.)
Voltage - DC Reverse (Vr) (Max)	50 V	50 V
Current - Average Rectified (Io)	1.5 A	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.4 V @ 1.5 A	1.4 V @ 1.5 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	5 µA @ 50 V	1 µA @ 50 V
Capacitance @ Vr, F	15 pF @ 4V, 1MHz	25 pF @ 4V, 1MHz
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Not For New Designs	Active

Engineering Selection Recommendations

The PG5391_R2_00001 manufactured by Panjit International Inc. is a parametric equivalent to the 1N5391GP-TP. Both components meet identical electrical specifications for reverse voltage, average rectified current, forward voltage drop, and recovery speed. Both are packaged in DO-15 through-hole format and operate across the same temperature range.

The PG5391_R2_00001 carries "Active" product status, whereas the 1N5391GP-TP is designated "Not For New Designs." This distinction indicates that the Panjit part remains in active production and is supported for ongoing applications.

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for electronic component procurement.

The PG5391_R2_00001 exhibits lower reverse leakage current (1 µA versus 5 µA at 50 V) and higher junction capacitance (25 pF versus 15 pF at 4V, 1MHz). These variations remain within acceptable tolerances for general-purpose rectification applications and do not preclude functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the PG5391_R2_00001 be used as a direct replacement for the 1N5391GP-TP?

A: Yes. Both components share identical voltage ratings (50 V), current ratings (1.5 A), forward voltage characteristics (1.4 V @ 1.5 A), recovery speed, and package format (DO-15 through-hole). Electrical performance is equivalent for general-purpose rectification circuits.

Q: What is the significance of the "Not For New Designs" status on the 1N5391GP-TP?

A: This designation indicates the manufacturer has discontinued active development and support for this part number. The PG5391_R2_00001 carries "Active" status, meaning it remains in production and is recommended for new applications requiring this performance class.

Q: Are there differences in reverse leakage current between these parts?

A: The PG5391_R2_00001 exhibits 1 µA reverse leakage at 50 V, compared to 5 µA for the 1N5391GP-TP. Lower leakage current in the substitute part represents improved performance and does not create compatibility issues in standard rectification applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 1N5391GP-TP and PG5391_R2_00001 are ROHS3 compliant and REACH unaffected, satisfying current regulatory requirements for electronic component procurement and use.

Q: Is the difference in junction capacitance (15 pF versus 25 pF) significant?

A: The capacitance difference is within acceptable tolerance for general-purpose rectifier applications. The PG5391_R2_00001 capacitance of 25 pF remains suitable for standard power supply and rectification circuits where the 1N5391GP-TP was originally specified.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. Both components use identical DO-15 through-hole package geometry and axial lead configuration. No PCB layout modifications are required for substitution.

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