N-channel 40 V, 4.4 mΩ logic level MOSFET in LFPAK56
Buy from Nexperia
| SKU | Stock* | MOQ | Price per unit** | Quantity |
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Buy from distributors
| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
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| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
|---|
| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
|---|
| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
|---|
* Stock values are subject to change
** Displayed price per unit is based on small quantity orders
*** Authorized resellers for overstock, mature, and discontinued products which are warranted for reliability by the reseller, no longer by Nexperia
** Displayed price per unit is based on small quantity orders
*** Authorized resellers for overstock, mature, and discontinued products which are warranted for reliability by the reseller, no longer by Nexperia
Features and benefits
- Q101 compliant
- Repetitive avalanche rated
- Suitable for thermally demanding environments due to 175 °C rating
- True logic level gate with VGS(th) rating of greater than 0.5 V at 175 °C
Applications
- 12 V Automotive systems
- Motors, lamps and solenoid control
- Transmission control
- Ultra high performance power switching
Parametrics
| Type number | Package version | Package name | Product status | Channel type | Number of transistors | VDS [max] (V) | RDSon [max] @ VGS = 10 V (mΩ) | RDSon [max] @ VGS = 5 V (mΩ) | Tj [max] (°C) | ID [max] (A) | QGD [typ] (nC) | Ptot [max] (W) | Qr [typ] (nC) | VGSth [typ] (V) | Automotive qualified | Ciss [typ] (pF) | Coss [typ] (pF) | Date |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BUK9Y4R4-40E | SOT669 | LFPAK56; Power-SO8 | Production | N | 1 | 40 | 3.7 | 4.4 | 175 | 100 | 8.7 | 147 | 16.5 | 1.7 | Y | 3058 | 422 | 2013-02-20 |
Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| BUK9Y4R4-40E | BUK9Y4R4-40E,115 ( 9340 670 45115 ) | Active | 94E440 |  LFPAK56; Power-SO8 (SOT669) | SOT669 | Reel 7” Q1/T1 or Q2/T3 |
Quality, reliability & chemical content
| Type number | Orderable part number | Chemical content | RoHS / RHF | MSL | MSL leadfree |
|---|---|---|---|---|---|
| BUK9Y4R4-40E | BUK9Y4R4-40E,115 | BUK9Y4R4-40E |   | 1 | 1 |
Documentation (16)
| File name | Title | Type | Date |
|---|---|---|---|
| BUK9Y4R4-40E | N-channel TrenchMOS logic level FET | Data sheet | 2017-04-20 |
| AN10273 | Power MOSFET single-shot and repetitive avalanche ruggedness rating | Application note | 2020-07-02 |
| AN11158 | Understanding power MOSFET data sheet parameters | Application note | 2020-07-06 |
| AN11160 | Designing RC Snubbers | Application note | 2021-01-04 |
| AN11156 | Using Power MOSFET Zth Curves | Application note | 2021-01-04 |
| AN11243 | Failure signature of Electrical Overstress on Power MOSFETs | Application note | 2017-12-21 |
| AN11158_ZH | Understanding power MOSFET data sheet parameters | Application note | 2021-01-04 |
| AN11261 | RC Thermal Models | Application note | 2020-05-11 |
| AN11599 | Using power MOSFETs in parallel | Application note | 2016-07-13 |
| AN10874_ZH | LFPAK MOSFET thermal design guide, Chinese version | Application note | 2020-04-30 |
| AN11113_ZH | LFPAK MOSFET thermal design guide - Part 2 | Application note | 2020-04-30 |
| nexperia_document_leaflet_LFPAK56_LR_2020 | The automotive Power-SO8 that packs a punch | Leaflet | 2020-04-22 |
| BUK9Y4R4-40E | BUK9Y4R4-40E Spice model | SPICE model | 2013-02-21 |
| TN00008 | Power MOSFET frequently asked questions and answers | Technical note | 2020-06-24 |
| BUK9Y4R4-40E_RC_Thermal_Model | BUK9Y4R4-40E Thermal design model | Thermal design | 2021-01-18 |
| BUK9Y4R4-40E | BUK9Y4R4-40E Thermal model | Thermal model | 2013-02-25 |
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.
Models
| File name | Title | Type | Date |
|---|---|---|---|
| BUK9Y4R4-40E | BUK9Y4R4-40E Spice model | SPICE model | 2013-02-21 |
| BUK9Y4R4-40E_RC_Thermal_Model | BUK9Y4R4-40E Thermal design model | Thermal design | 2021-01-18 |
| BUK9Y4R4-40E | BUK9Y4R4-40E Thermal model | Thermal model | 2013-02-25 |
Ordering, pricing & availability
| Type number | Orderable part number | Ordering code (12NC) | Packing | Buy online |
|---|---|---|---|---|
| BUK9Y4R4-40E | BUK9Y4R4-40E,115 | 934067045115 | Reel 7” Q1/T1 or Q2/T3 | Order product |
Sample
As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.
Sample orders normally take 2-4 days for delivery.
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.