Orderable parts
| Type number | Orderable part number | Ordering code (12NC) | Package | Buy from distributors |
|---|---|---|---|---|
| BF840 | BF840,215 | 933792670215 | SOT23 | Order product |
| BF840 | BF840,235 | 933792670235 | SOT23 | Order product |
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Click here for more informationBF840
NPN medium frequency transistor
NPN medium frequency transistor in a SOT23 plastic package.
Features and benefits
Low current (max. 25 mA)
Low voltage (max. 40 V).
AEC-Q101 qualified
Applications
AM mixers
IF amplifiers in AM/FM receivers.
Parametrics
| Type number | Package version | Package name | Size (mm) | hFE [min] | hFE [max] | fT [min] (MHz) | Ptot [max] (mW) | IC [max] (mA) | VCEO [max] (V) | Polarity |
|---|---|---|---|---|---|---|---|---|---|---|
| BF840 | SOT23 | SOT23 | 2.9 x 1.3 x 1 | 76 | 222 | 380 | 250 | 25 | 40 | NPN |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| BF840 | BF840,215 (933792670215) |
Active | NC% |
(SOT23) |
SOT23 |
REFLOW_BG-BD-1
WAVE_BG-BD-1 |
SOT23_215 |
| BF840,235 (933792670235) |
Active | NC% | SOT23_235 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| BF840 | BF840,215 | BF840 |
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| BF840 | BF840,235 | BF840 |
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Documentation (13)
| File name | Title | Type | Date |
|---|---|---|---|
| BF840 | NPN medium frequency transistor | Data sheet | 2025-04-14 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| SOT23 | 3D model for products with SOT23 package | Design support | 2019-01-22 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| SOT23_mk | plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm body | Marcom graphics | 2017-01-28 |
| LSYMTRA | Letter Symbols - Transistors; General | Other type | 1999-05-06 |
| SOT23 | plastic, surface-mounted package; 3 terminals; 1.9 mm pitch; 2.9 mm x 1.3 mm x 1 mm body | Package information | 2022-10-12 |
| SOT23_215 | Reel pack for SMD, 7"; Q3/T4 product orientation | Packing information | 2025-01-20 |
| SOT23_235 | Reel pack for SMD, 11"; Q3/T4 product orientation | Packing information | 2020-06-01 |
| BF840_Nexperia_Product_Reliability | BF840 Nexperia Product Reliability | Quality document | 2025-05-28 |
| REFLOW_BG-BD-1 | Reflow soldering profile | Reflow soldering | 2021-04-06 |
| BF840 | BF840 SPICE model | SPICE model | 2025-07-09 |
| WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
Support
If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.
Longevity
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.
Sample
As a Nexperia customer you can order samples via our sales organization.
If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.
How does it work?
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.