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FMB-24 Equivalent & Substitute Parts Reference
Part Overview
FMB-24, manufactured by Sanken Electric USA Inc., is a Schottky diode array in the Diodes, Rectifiers category. It features a 1 Pair Common Cathode configuration with a maximum reverse voltage of 40 V and an average rectified current of 4A per diode, supplied in a TO-220F through-hole package. The product status is Obsolete, thus an equivalent or substitute part is required for continuity in designs, repairs, or manufacturing that currently specify the FMB-24.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | FMB-24 |
| Manufacturer | Sanken Electric USA Inc. |
| Category | Diodes, Rectifiers |
| Diode Configuration | 1 Pair Common Cathode |
| Technology | Schottky |
| Voltage - DC Reverse (Vr) (Max) | 40 V |
| Current - Average Rectified (Io) (per Diode) | 4A |
| Voltage - Forward (Vf) (Max) @ If | 550 mV @ 2 A |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) |
| Current - Reverse Leakage @ Vr | 2 mA @ 40 V |
| Operating Temperature - Junction | -40°C ~ 150°C |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 Full Pack |
| Supplier Device Package | TO-220F |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| ECCN | EAR99 |
| HTSUS | 8541.10.0080 |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitute grouping is determined by identical or compatible electrical and mechanical parameters as follows: diode configuration, Schottky technology, maximum DC reverse voltage (40 V), average rectified current per diode (≥4A), maximum forward voltage at equivalent current, fast recovery speed, through-hole mounting type, and comparable TO-220 package. Only parts matching these parameters are considered as equivalents for FMB-24. Compliance and product status details are also strictly matched.
Parameter Comparison
| Parameter | Main Part: FMB-24 | Substitute: SBL1040CT-E3/45 |
|---|---|---|
| Manufacturer | Sanken Electric USA Inc. | Vishay General Semiconductor - Diodes Division |
| Category | Diodes, Rectifiers | Diodes, Rectifiers |
| Diode Configuration | 1 Pair Common Cathode | 1 Pair Common Cathode |
| Technology | Schottky | Schottky |
| Voltage - DC Reverse (Vr) (Max) | 40 V | 40 V |
| Current - Average Rectified (Io) (per Diode) | 4A | 5A |
| Voltage - Forward (Vf) (Max) @ If | 550 mV @ 2 A | 550 mV @ 5 A |
| Speed | Fast Recovery =< 500ns, > 200mA (Io) | Fast Recovery =< 500ns, > 200mA (Io) |
| Current - Reverse Leakage @ Vr | 2 mA @ 40 V | 500 µA @ 40 V |
| Operating Temperature - Junction | -40°C ~ 150°C | -40°C ~ 125°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | TO-220-3 Full Pack | TO-220-3 |
| Supplier Device Package | TO-220F | TO-220-3 |
| RoHS Status | RoHS Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8541.10.0080 | 8541.10.0080 |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
FMB-24 is classified as Obsolete, requiring an active replacement for designs requiring continued procurement and support. Substitute parts such as SBL1040CT-E3/45 are RoHS and REACH compliant, MSL 1 (Unlimited), and share the same ECCN and HTSUS, supporting direct substitution within compliance and international trade requirements. Only parts matching compliance parameters can be considered.
Frequently Asked Questions (FAQ)
Q1: What are the critical parameters for substituting FMB-24 in a design?
A1: The critical parameters are diode configuration (1 Pair Common Cathode), Schottky technology, maximum DC reverse voltage (40 V), average rectified current per diode, forward voltage at designated current, recovery speed, mounting type (through-hole), and package compatibility (TO-220 type).
Q2: Are package types between FMB-24 and SBL1040CT-E3/45 fully interchangeable?
A2: Both use TO-220 type through-hole packages; however, the FMB-24 is in a TO-220-3 Full Pack/TO-220F, and the substitute is specified as TO-220-3.
Q3: Is RoHS compliance important for substitution?
A3: Yes, both FMB-24 and the substitute SBL1040CT-E3/45 are RoHS compliant, satisfying environmental and regulatory requirements.
Q4: Does the substitute part have an improved or matching current rating?
A4: SBL1040CT-E3/45 has a higher average rectified current of 5A per diode compared to the FMB-24's 4A.
Q5: What should be considered regarding operating temperature ranges?
A5: Ensure that the substitute’s operating junction temperature range (-40°C ~ 125°C) is adequate for the intended application environment if replacing a part specified for -40°C ~ 150°C.
Q6: Does the reverse leakage current influence substitution eligibility?
A6: Both components specify reverse leakage at 40 V, with SBL1040CT-E3/45 having a lower maximum value (500 µA) than FMB-24 (2 mA).
Q7: Is Moisture Sensitivity Level (MSL) a substitute criterion?
A7: Both have MSL 1 (Unlimited), making them suitable for environments and processes with unrestricted handling times.
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