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SRAF520HC0G Schottky Diode Equivalent & Substitute Parts
Part Overview
The SRAF520HC0G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 20 V DC reverse voltage and 5 A average rectified current in a through-hole TO-220-2 package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The part carries automotive-grade qualification (AEC-Q101) and ROHS3 compliance, making it suitable for automotive and industrial applications requiring fast recovery characteristics.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - DC Reverse (Vr) (Max) | 20 | V |
| Current - Average Rectified (Io) | 5 | A |
| Voltage - Forward (Vf) (Max) @ If | 550 mV @ 5 A | mV |
| Speed | Fast Recovery ≤ 500ns, > 200mA (Io) | ns |
| Current - Reverse Leakage @ Vr | 500 | µA @ 20 V |
| Operating Temperature - Junction | -55 to 125 | °C |
| Mounting Type | Through Hole | — |
| Package / Case | TO-220-2 Full Pack | — |
| Grade | Automotive | — |
| Qualification | AEC-Q101 | — |
| Technology | Schottky | — |
Substitute Part Grouping Explanation
Substitution of the SRAF520HC0G is determined by strict equivalence across the following electrical and mechanical parameters:
- Voltage Rating: 20 V DC reverse voltage (Vr) maximum
- Current Rating: 5 A average rectified current (Io)
- Forward Voltage Drop: 550 mV maximum at 5 A forward current
- Recovery Speed: Fast recovery characteristic ≤ 500ns for currents > 200mA
- Reverse Leakage: 500 µA at 20 V reverse bias
- Package: TO-220-2 through-hole configuration
- Temperature Range: -55°C to 125°C junction operating range
- Automotive Qualification: AEC-Q101 certification required
- Compliance: ROHS3 compliant
Substitute parts must match all electrical specifications and maintain automotive-grade qualification to ensure functional and regulatory equivalence.
Parameter Comparison
| Parameter | SRAF520HC0G (Main Part) | SRAF520H (Substitute) | Match Status |
|---|---|---|---|
| Manufacturer | Taiwan Semiconductor Corporation | Taiwan Semiconductor Corporation | Identical |
| Technology | Schottky | Schottky | Identical |
| Voltage - DC Reverse (Vr) (Max) | 20 V | 20 V | Identical |
| Current - Average Rectified (Io) | 5 A | 5 A | Identical |
| Voltage - Forward (Vf) (Max) @ If | 550 mV @ 5 A | 550 mV @ 5 A | Identical |
| Speed | Fast Recovery ≤ 500ns, > 200mA (Io) | Fast Recovery ≤ 500ns, > 200mA (Io) | Identical |
| Current - Reverse Leakage @ Vr | 500 µA @ 20 V | 500 µA @ 20 V | Identical |
| Operating Temperature - Junction | -55°C to 125°C | -55°C to 125°C | Identical |
| Mounting Type | Through Hole | Through Hole | Identical |
| Package / Case | TO-220-2 Full Pack | TO-220-2 Full Pack | Identical |
| Grade | Automotive | Automotive | Identical |
| Qualification | AEC-Q101 | AEC-Q101 | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Product Status | Discontinued at DiGi Electronics | Active | Substitute is active |
Engineering Selection Recommendations
The SRAF520H serves as a direct functional equivalent to the SRAF520HC0G. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications, thermal operating range, and package configuration. The primary distinction is product status: the SRAF520HC0G is discontinued at DiGi Electronics, while the SRAF520H maintains active status in the supply chain.
Both parts carry AEC-Q101 automotive qualification and ROHS3 compliance, ensuring regulatory equivalence for applications requiring automotive-grade components. The SRAF520H is available with 824 pieces in new original stock, providing supply continuity for designs currently utilizing the SRAF520HC0G.
Selection of the SRAF520H as a substitute requires no circuit redesign or thermal management modifications, as all electrical and mechanical parameters remain unchanged.
Frequently Asked Questions (FAQ)
Q: Can the SRAF520H directly replace the SRAF520HC0G in existing designs?
A: Yes. The SRAF520H is electrically and mechanically identical to the SRAF520HC0G across all specified parameters, including voltage rating, current capacity, forward voltage drop, recovery speed, and package configuration. No circuit modifications are required.
Q: Are both parts qualified for automotive applications?
A: Yes. Both the SRAF520HC0G and SRAF520H carry AEC-Q101 automotive qualification and are classified as automotive-grade components. Both maintain ROHS3 compliance.
Q: What is the difference between the SRAF520HC0G and SRAF520H?
A: The parts are electrically and mechanically equivalent. The SRAF520HC0G is discontinued at DiGi Electronics, while the SRAF520H maintains active product status with current inventory availability.
Q: Are the thermal characteristics identical?
A: Yes. Both parts operate across the same junction temperature range of -55°C to 125°C and share identical reverse leakage current specifications at rated voltage.
Q: Can the SRAF520H be used in high-frequency switching applications?
A: Both parts feature fast recovery characteristics (≤ 500ns for currents > 200mA), supporting high-frequency rectification applications within the specified current and voltage ratings.
Q: Is the TO-220-2 package identical for both parts?
A: Yes. Both parts use the TO-220-2 full pack through-hole configuration, ensuring identical PCB footprint and mounting requirements.
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