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1N5391-TP Equivalent & Substitute Parts
Part Overview
The 1N5391-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 axial package. This component is classified as obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications where the original part is no longer readily procurable from the original manufacturer.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 50 | V |
| Current - Average Rectified (Io) | 1.5 | A |
| Voltage - Forward (Vf) (Max) @ If | 1.1 @ 1.5 | V @ A |
| Speed | Standard Recovery >500ns, > 200mA (Io) | — |
| Current - Reverse Leakage @ Vr | 5 | µA @ 50 V |
| Capacitance @ Vr, F | 20 | pF @ 4V, 1MHz |
| Mounting Type | Through Hole | — |
| Package / Case | DO-204AC, DO-15, Axial | — |
| Operating Temperature - Junction | -55 to 150 | °C |
Substitute Part Grouping Explanation
Substitute parts for the 1N5391-TP are identified based on strict electrical and mechanical parameter matching within the general-purpose rectifier diode category. The substitution criteria are:
Critical Matching 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)
- Mounting Type: Through Hole
- Package / Case: DO-204AC, DO-15, Axial
- Operating Temperature - Junction: -55°C to 150°C
The PG150_R2_00001 manufactured by Panjit International Inc. meets all critical electrical and mechanical parameters required for direct substitution. Both parts operate within identical voltage and current specifications, share the same package configuration, and support the same operating temperature range.
Parameter Comparison
| Parameter | 1N5391-TP (Micro Commercial Co) | PG150_R2_00001 (Panjit International Inc.) | Match Status |
|---|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 50 V | 50 V | Matched |
| Current - Average Rectified (Io) | 1.5 A | 1.5 A | Matched |
| Voltage - Forward (Vf) (Max) @ If | 1.1 V @ 1.5 A | 1.1 V @ 1.5 A | Matched |
| Speed | Standard Recovery >500ns, > 200mA (Io) | Standard Recovery >500ns, > 200mA (Io) | Matched |
| Current - Reverse Leakage @ Vr | 5 µA @ 50 V | 1 µA @ 50 V | Compatible |
| Capacitance @ Vr, F | 20 pF @ 4V, 1MHz | 25 pF @ 4V, 1MHz | Compatible |
| Mounting Type | Through Hole | Through Hole | Matched |
| Package / Case | DO-204AC, DO-15, Axial | DO-204AC, DO-15, Axial | Matched |
| Operating Temperature - Junction | -55°C to 150°C | -55°C to 150°C | Matched |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Matched |
| Product Status | Obsolete | Active | Substitute is Active |
Engineering Selection Recommendations
The PG150_R2_00001 is a direct electrical and mechanical equivalent to the 1N5391-TP. Selection of this substitute part is supported by the following factors:
Compliance & Certification: Both parts maintain ROHS3 compliance and carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, ensuring regulatory consistency in procurement and deployment.
Product Status: The PG150_R2_00001 carries Active product status, providing assurance of continued availability and manufacturing support, whereas the 1N5391-TP is classified as Obsolete. This transition addresses long-term supply chain continuity.
Electrical Performance: All critical electrical parameters—reverse voltage rating, average rectified current, forward voltage drop, recovery speed, and operating temperature range—are identical between the two parts. The PG150_R2_00001 exhibits lower reverse leakage current (1 µA versus 5 µA) and slightly higher capacitance (25 pF versus 20 pF), both of which represent acceptable performance variations within standard rectifier diode specifications.
Mechanical Compatibility: Both parts utilize the DO-15 axial through-hole package configuration, ensuring direct pin-for-pin compatibility in existing circuit board layouts and assembly processes.
Frequently Asked Questions (FAQ)
Q: Can the PG150_R2_00001 be used as a direct replacement for the 1N5391-TP in existing designs?
A: Yes. The PG150_R2_00001 meets all critical electrical and mechanical specifications of the 1N5391-TP. Both parts share identical voltage ratings (50 V), current ratings (1.5 A), forward voltage characteristics (1.1 V @ 1.5 A), recovery speed, and DO-15 axial package configuration. No circuit modifications are required.
Q: What are the differences between these two parts?
A: The primary differences are manufacturer identity and product status. The PG150_R2_00001 is manufactured by Panjit International Inc. and maintains Active product status, whereas the 1N5391-TP is manufactured by Micro Commercial Co and is classified as Obsolete. The PG150_R2_00001 exhibits lower reverse leakage current (1 µA versus 5 µA at 50 V) and marginally higher junction capacitance (25 pF versus 20 pF at 4 V, 1 MHz). These variations fall within acceptable performance tolerances for general-purpose rectifier applications.
Q: Are there packaging differences between these parts?
A: Both parts are supplied in DO-15 axial through-hole packages. The 1N5391-TP is available in standard packaging, while the PG150_R2_00001 is supplied in Tape & Reel (TR) format. The physical component dimensions and pin configuration remain identical, ensuring mechanical compatibility in circuit board assembly.
Q: Do both parts meet the same regulatory and compliance standards?
A: Yes. Both the 1N5391-TP and PG150_R2_00001 are ROHS3 compliant, carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, and maintain Moisture Sensitivity Level 1 (Unlimited). Regulatory and compliance requirements are fully satisfied by either part.
Q: What is the operating temperature range for these diodes?
A: Both parts operate across a junction temperature range of -55°C to 150°C, providing identical thermal performance specifications for industrial and commercial applications.
Q: Why is the 1N5391-TP classified as Obsolete?
A: Obsolete classification indicates that the original manufacturer (Micro Commercial Co) has discontinued production of this part number. The PG150_R2_00001 provides functional and electrical equivalence while maintaining Active product status and ongoing manufacturing support.
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