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FEPE16HT-E3/45 Equivalent & Substitute Parts
Part Overview
The FEPE16HT-E3/45 is a general-purpose diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 500 V DC reverse voltage and 8 A average rectified current per diode. The device is packaged in a Through Hole TO-220-3 form factor suitable for high-current rectification applications.
The FEPE16HT-E3/45 is classified as Obsolete. Identification of equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for legacy systems utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Diode Configuration | 1 Pair Common Cathode |
| Voltage - DC Reverse (Vr) (Max) | 500 V |
| Current - Average Rectified (Io) (per Diode) | 8 A |
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 8 A |
| Speed Classification | Fast Recovery ≤ 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | 50 ns |
| Current - Reverse Leakage @ Vr | 10 µA @ 500 V |
| Operating Temperature - Junction | -55°C ~ 150°C |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Technology | Standard |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the FEPE16HT-E3/45 is determined by strict equivalence across the following critical parameters:
Mandatory Equivalence Criteria:
- Diode Configuration: 1 Pair Common Cathode
- Voltage - DC Reverse (Vr) (Max): 500 V minimum
- Mounting Type: Through Hole
- Package / Case: TO-220-3 compatible form factor
- Technology: Standard
Allowable Parameter Variations:
- Current - Average Rectified (Io): Equal to or greater than 8 A per diode
- Voltage - Forward (Vf): Equal to or lower than 1.5 V @ rated current
- Reverse Recovery Time (trr): Equal to or lower than 50 ns
- Current - Reverse Leakage @ Vr: Equal to or lower than 10 µA @ 500 V
- Operating Temperature - Junction: Maximum rating of 150°C or higher
Substitute parts must maintain identical electrical function and mechanical compatibility while meeting or exceeding the performance specifications of the original component.
Parameter Comparison
| Parameter | FEPE16HT-E3/45 (Vishay) | BYT28-500,127 (WeEn Semiconductors) |
|---|---|---|
| Manufacturer | Vishay General Semiconductor - Diodes Division | WeEn Semiconductors |
| Product Status | Obsolete | Active |
| Diode Configuration | 1 Pair Common Cathode | 1 Pair Common Cathode |
| Voltage - DC Reverse (Vr) (Max) | 500 V | 500 V |
| Current - Average Rectified (Io) (per Diode) | 8 A | 10 A |
| Voltage - Forward (Vf) (Max) @ If | 1.5 V @ 8 A | 1.4 V @ 10 A |
| Speed Classification | Fast Recovery ≤ 500ns, > 200mA (Io) | Fast Recovery ≤ 500ns, > 200mA (Io) |
| Reverse Recovery Time (trr) | 50 ns | 60 ns |
| Current - Reverse Leakage @ Vr | 10 µA @ 500 V | 10 µA @ 500 V |
| Operating Temperature - Junction | -55°C ~ 150°C | 150°C (Max) |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | TO-220-3 | TO-220-3 |
| Technology | Standard | Standard |
| RoHS Status | ROHS3 Compliant | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
The BYT28-500,127 manufactured by WeEn Semiconductors qualifies as a direct substitute for the obsolete FEPE16HT-E3/45. Both components share identical electrical ratings for reverse voltage (500 V) and diode configuration (1 Pair Common Cathode), with compatible Through Hole TO-220-3 packaging.
The BYT28-500,127 provides enhanced performance characteristics relative to the original part:
- Current rating increased from 8 A to 10 A per diode, providing additional design margin
- Forward voltage reduced from 1.5 V to 1.4 V @ rated current, resulting in lower power dissipation
- Active product status ensures ongoing availability and supply chain continuity
Both components maintain equivalent reverse leakage characteristics (10 µA @ 500 V) and fast recovery speed classification. The BYT28-500,127 carries RoHS Compliance certification, meeting current environmental and regulatory standards. Moisture Sensitivity Level remains at MSL 1 (Unlimited) for both parts, indicating no special handling requirements.
The substitute part is suitable for direct replacement in applications where the original FEPE16HT-E3/45 was specified, with the understanding that the enhanced current rating and reduced forward voltage of the BYT28-500,127 provide improved performance margins without requiring circuit redesign.
Frequently Asked Questions (FAQ)
Q: Can the BYT28-500,127 be used as a direct replacement for the FEPE16HT-E3/45?
A: Yes. Both components feature identical 500 V reverse voltage ratings, 1 Pair Common Cathode configuration, and Through Hole TO-220-3 packaging. The BYT28-500,127 meets or exceeds all electrical specifications of the original part.
Q: What are the key differences between these two diode arrays?
A: The BYT28-500,127 provides a higher current rating (10 A versus 8 A per diode) and lower forward voltage (1.4 V versus 1.5 V @ rated current). The reverse recovery time is slightly longer (60 ns versus 50 ns). These differences represent performance improvements or negligible variations suitable for direct substitution.
Q: Are there any package compatibility concerns?
A: Both components use Through Hole TO-220-3 packaging. The BYT28-500,127 is supplied in Tube packaging, while the original FEPE16HT-E3/45 packaging format was not specified. No mechanical incompatibility exists for PCB mounting or thermal management applications.
Q: What is the significance of the product status difference?
A: The FEPE16HT-E3/45 is classified as Obsolete, indicating discontinued manufacturing and limited availability. The BYT28-500,127 is classified as Active, ensuring ongoing production, supply chain availability, and long-term design support.
Q: Do both components meet current compliance standards?
A: The FEPE16HT-E3/45 is ROHS3 Compliant. The BYT28-500,127 is RoHS Compliant. Both components carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating no special storage or handling requirements. Both are EAR99 classified for export purposes.
Q: Are there any thermal operating range considerations?
A: The FEPE16HT-E3/45 specifies a junction temperature range of -55°C to 150°C. The BYT28-500,127 specifies a maximum junction temperature of 150°C. For applications requiring operation below -55°C, the original part specifications must be verified against actual system requirements.
Q: What is the inventory status for these components?
A: The FEPE16HT-E3/45 has 688 pieces in stock as new original inventory. The BYT28-500,127 has 917 pieces in stock as new original inventory, providing greater availability for ongoing procurement needs.
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