BUK9Y4R4-40E

N-channel 40 V, 4.4 mΩ logic level MOSFET in LFPAK56

Logic level N-channel MOSFET in an LFPAK56 (Power SO8) package using TrenchMOS technology. This product has been designed and qualified to AEC Q101 standard for use in high performance automotive applications.

N-channel 40 V, 4.4 mΩ logic level MOSFET in LFPAK56

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SKU	Stock*	MOQ	Price per unit**	Quantity

Buy from distributors

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

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

Features

Q101 compliant
Repetitive avalanche rated
Suitable for thermally demanding environments due to 175 °C rating
True logic level gate with V_GS(th) rating of greater than 0.5 V at 175 °C

Target 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	V_DS [max] (V)	R_DSon [max] @ V_GS = 10 V (mΩ)	R_DSon [max] @ V_GS = 5 V (mΩ)	T_j [max] (°C)	I_D [max] (A)	Q_GD [typ] (nC)	P_tot [max] (W)	Q_r [typ] (nC)	V_GSth [typ] (V)	Automotive qualified	C_iss [typ] (pF)	C_oss [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

Quality, reliability & chemical content

Type number	Orderable part number	Chemical content	RoHS / RHF	IFR	MTBF (hour)	MSL	MSL leadfree
BUK9Y4R4-40E	BUK9Y4R4-40E,115	BUK9Y4R4-40E		11.6	8.62E7	1	1

Quality and reliability disclaimer

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	2015-12-10
AN11158	Understanding power MOSFET data sheet parameters	Application note	2020-04-06
AN11160	Designing RC Snubbers	Application note	2012-10-01
AN11156	Using Power MOSFET Zth Curves	Application note	2012-10-10
AN11243	Failure signature of Electrical Overstress on Power MOSFETs	Application note	2017-12-21
AN11158_ZH	Understanding power MOSFET data sheet parameters	Application note	2013-11-08
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	2018-09-12
BUK9Y4R4-40E_RC_Thermal_Model	BUK9Y4R4-40E Thermal design model	Thermal design	2013-02-24
BUK9Y4R4-40E	BUK9Y4R4-40E Thermal model	Thermal model	2013-02-25

Support

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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	2013-02-24
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	Order product

Sample

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