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Click here for more informationHigh-voltage switching diode
High-voltage switching diode, encapsulated in an ultra small SOD523 (SC-79) flat lead Surface-Mounted Device (SMD) plastic package.
High switching speed: trr ≤ 50 ns
High reverse voltage: VR ≤ 300 V
Repetitive peak forward current: IFRM ≤ 1 A
Ultra small SMD plastic package
Qualified according to AEC-Q101 and recommended for use in automotive applications
High-speed switching
High-voltage switching
| Type number | Package version | Package name | Size (mm) | VR [max] (V) | IFSM [max] (A) | VF [max] (mV) | IR [max] (nA) | IFRM (mA) | Configuration | trr [max] (ns) | IF [max] (mA) | Cd [max] (pF) | Automotive qualified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BAS521-Q | SOD523 | SC-79 | 1.2 x 0.8 x 0.6 | 300 | 4.5 | 1100@IF=100mA | 150@VR=250V | 1000 | single | 50 | 250 | 5 | Y |
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| BAS521-Q | BAS521-QX (934662966115) |
Active | L4 |
SC-79 (SOD523) |
SOD523 |
REFLOW_BG-BD-1
|
SOD523_115 |
| BAS521-QF (934662966135) |
Active | L4 | SOD523_135 | ||||
| BAS521-QYL (934662966315) |
Active | L4 | SOD523_315 |
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| BAS521-Q | BAS521-QX | BAS521-Q |
|
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| BAS521-Q | BAS521-QF | BAS521-Q |
|
|
| BAS521-Q | BAS521-QYL | BAS521-Q |
|
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| File name | Title | Type | Date |
|---|---|---|---|
| BAS521-Q | High-voltage switching diode | Data sheet | 2022-06-15 |
| AN90063 | Questions about package outline drawings | Application note | 2025-10-22 |
| Nexperia_document_brochure_ESD-Protection-Applications_022017 | ESD Protection Application guide | Brochure | 2018-12-21 |
| SOD523 | 3D model for products with SOD523 package | Design support | 2019-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| SOD523_mk | plastic, surface-mounted package; 2 leads; 1.2 mm x 0.8 mm x 0.6 mm body | Marcom graphics | 2017-01-28 |
| SOD523 | plastic, surface-mounted package; 2 leads; 1.2 mm x 0.8 mm x 0.6 mm body | Package information | 2022-05-27 |
| SOD523_115 | Reel pack for SMD, 7''; Q1/T1-Q2/T3 product orientation | Packing information | 2021-02-05 |
| SOD523_135 | Reel pack for SMD, 11''; Q1/T1-Q2/T3 product orientation | Packing information | 2021-02-05 |
| SOD523_315 | Reel pack, SMD, 7"; Q1/T1 standard product orientation; Orderable part number ending ,315 or YL; Ordering code (12NC) ending 315 | Packing information | 2020-04-21 |
| BAS521-Q_Nexperia_Product_Reliability | BAS521-Q Nexperia Product Reliability | Quality document | 2025-05-28 |
| REFLOW_BG-BD-1 | Reflow soldering profile | Reflow soldering | 2021-04-06 |
| BAS521 | BAS521 SPICE model | SPICE model | 2025-10-11 |
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The Nexperia Longevity Program is aimed to provide our customers information from time to time about the expected time that our products can be ordered. The NLP is reviewed and updated regularly by our Executive Management Team. View our longevity program here.
| Type number | Orderable part number | Ordering code (12NC) | Status | Packing | Packing Quantity | Buy online |
|---|---|---|---|---|---|---|
| BAS521-Q | BAS521-QX | 934662966115 | Active | SOD523_115 | 3,000 |
|
| BAS521-Q | BAS521-QF | 934662966135 | Active | SOD523_135 | 10,000 |
|
| BAS521-Q | BAS521-QYL | 934662966315 | Active | SOD523_315 | 8,000 |
|
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The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.
