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Rohm RB480Y-90FHT2R Equivalent & Substitute Parts Reference
Part Overview
The RB480Y-90FHT2R from Rohm Semiconductor is a Schottky diode array consisting of two independent diodes, each rated for 90 V reverse voltage and 100 mA average current, in a surface-mount SC-75-4/SOT-543 package. This component is classified under “Diodes, Rectifiers” and features AEC-Q101 automotive qualification and RoHS3 compliance. The RB480Y-90FHT2R is now listed as obsolete, necessitating identification of alternative models with comparable electrical, mechanical, and environmental parameters for continued design support in legacy or replacement contexts.
Substiute Parts
Key Parameters
| Manufacturer Part Number | Technology | Diode Configuration | Voltage - DC Reverse (Vr) (Max) | Current - Average Rectified (Io) | Voltage - Forward (Vf) (Max) @ If | Speed | Current - Reverse Leakage @ Vr | Operating Temperature - Junction (Max) | Mounting Type | Package / Case | Compliance |
|---|---|---|---|---|---|---|---|---|---|---|---|
| RB480Y-90FHT2R | Schottky | 2 Independent | 90 V | 100 mA | 690 mV @ 100 mA | Small Signal ≤ 200 mA (Io), Any Speed | 5 µA @ 90 V | 150°C | Surface Mount | SC-75-4, SOT-543 | RoHS3, AEC-Q101 |
| BAT41KFILM | Schottky | - | 100 V | 200 mA | 1 V @ 200 mA | Small Signal ≤ 200 mA (Io), Any Speed | 100 nA @ 50 V | 150°C | Surface Mount | SC-79, SOD-523 | RoHS3 |
Substitute Part Grouping Explanation
Substitute and equivalent component selection for Schottky diodes in this category is strictly determined by the following explicit parameters: diode technology, maximum reverse voltage (Vr), average rectified current (Io), maximum forward voltage (Vf) at specified forward current (If), reverse leakage current at rated voltage, operating junction temperature, mounting type, and package/case. Compliance levels (RoHS3, automotive qualification), as well as identical or compatible form factors, are also strictly observed.
Parameter Comparison
| Manufacturer Part Number | Technology | Voltage - DC Reverse (Vr) (Max) | Current - Average Rectified (Io) | Voltage - Forward (Vf) (Max) @ If | Speed | Current - Reverse Leakage @ Vr | Operating Temperature - Junction (Max) | Mounting Type | Package / Case | Compliance |
|---|---|---|---|---|---|---|---|---|---|---|
| RB480Y-90FHT2R | Schottky | 90 V | 100 mA (per diode) | 690 mV @ 100 mA | Small Signal ≤ 200 mA (Io), Any Speed | 5 µA @ 90 V | 150°C | Surface Mount | SC-75-4, SOT-543 | RoHS3, AEC-Q101 |
| BAT41KFILM | Schottky | 100 V | 200 mA | 1 V @ 200 mA | Small Signal ≤ 200 mA (Io), Any Speed | 100 nA @ 50 V | 150°C | Surface Mount | SC-79, SOD-523 | RoHS3 |
Engineering Selection Recommendations
The RB480Y-90FHT2R is classified as Obsolete, while BAT41KFILM is Active. Both parts are RoHS3 compliant. The RB480Y-90FHT2R is automotive qualified (AEC-Q101); BAT41KFILM does not list this qualification in the provided parameters. Both devices meet the stated moisture sensitivity and regulatory compliance levels, supporting use in RoHS/REACH-constrained applications.
Frequently Asked Questions (FAQ)
Q: What are the minimum parameters required for identifying a substitute for the RB480Y-90FHT2R?
A: Substitute selection strictly requires matching or exceeding maximum reverse voltage, forward current, diode technology, mounting type, maximum junction temperature, compliance status, and package compatibility.
Q: Is package compatibility guaranteed between RB480Y-90FHT2R and BAT41KFILM?
A: The RB480Y-90FHT2R uses SC-75-4/SOT-543; BAT41KFILM uses SC-79/SOD-523. Only the provided package designations should be reviewed for direct footprint compatibility.
Q: Do both devices support similar regulatory and compliance specifications?
A: Both parts are RoHS3 compliant. Only the RB480Y-90FHT2R lists AEC-Q101 automotive qualification.
Q: Does the substitute meet or exceed the temperature requirements?
A: Both the RB480Y-90FHT2R and BAT41KFILM specify a maximum operating junction temperature of 150°C.
Q: Are there any differences in diode configuration?
A: RB480Y-90FHT2R is a diode array with 2 independent diodes; BAT41KFILM’s configuration is not specified beyond being a single Schottky diode.
Q: Is forward voltage or leakage current a differentiator?
A: The maximum forward voltage and reverse leakage current values differ. Only the provided values apply for selection and should be cross-checked against circuit requirements.
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