NTTFD4D0N04HLTWG from onsemi, in a WDFN-12. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	GND (LSS)	power_in	Low-side source of the synchronous MOSFET Q1, tied to ground; pins 1, 11 and 12 share this connection.
2	LSG	input	Low-side gate of the synchronous MOSFET Q1, with a gate-to-source rating of ±20 V.
3	V+ (HSD)	power_in	High-side drain of the control MOSFET Q2 and the V+ input connection, with a drain-to-source rating of 40 V.
4	V+ (HSD)	power_in	High-side drain of the control MOSFET Q2 and the V+ input connection, with a drain-to-source rating of 40 V.
5	V+ (HSD)	power_in	High-side drain of the control MOSFET Q2 and the V+ input connection, with a drain-to-source rating of 40 V.
6	V+ (HSD)	power_in	High-side drain of the control MOSFET Q2 and the V+ input connection, with a drain-to-source rating of 40 V.
7	HSG	input	High-side gate of the control MOSFET Q2, with a gate-to-source rating of ±20 V.
8	SW	passive	Switching node, which is the low-side drain of Q1 and is internally connected to the high-side source; pins 8, 9 and 10 share this node.
9	SW	passive	Switching node, which is the low-side drain of Q1 and is internally connected to the high-side source; pins 8, 9 and 10 share this node.
10	SW	passive	Switching node, which is the low-side drain of Q1 and is internally connected to the high-side source; pins 8, 9 and 10 share this node.
11	GND (LSS)	power_in	Low-side source of the synchronous MOSFET Q1, tied to ground; pins 1, 11 and 12 share this connection.
12	GND (LSS)	power_in	Low-side source of the synchronous MOSFET Q1, tied to ground; pins 1, 11 and 12 share this connection.
13	EP	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	WDFN-12
Category	Triode/MOS Tube/Transistor
Pins	13

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Drain-to-Source Voltage	VDS			40	V		2
Gate-to-Source Voltage	VGS	-20		20	V		2
Drain Current, Continuous	ID			60	A	TC = 25°C (Note 4)	2
Drain Current, Continuous	ID			37	A	TC = 100°C (Note 4)	2
Drain Current, Continuous	ID			15	A	TA = 25°C (Note 1a, Q1)	2
Drain Current, Pulsed	ID			349	A	TA = 25°C	2
Single Pulse Avalanche Energy	EAS			67	mJ	Note 3: starting TJ = 25°C, L = 1 mH, IAS = 11.6 A, VDD = 40 V, VGS = 10 V	2
Power Dissipation for Single Operation	PD			26	W	TC = 25°C	2
Power Dissipation for Single Operation	PD			1.7	W	TA = 25°C (Note 1a, Q1)	2
Operating and Storage Junction Temperature Range	TJ, TSTG	-55		150	°C		2
Thermal Resistance, Junction-to-Case	RJC		4.8		°C/W		2
Thermal Resistance, Junction-to-Ambient, max copper	RJA		70		°C/W	Note 1a: mounted on 1 in² pad of 2 oz copper	2
Thermal Resistance, Junction-to-Ambient, min copper	RJA		135		°C/W	Note 1a: mounted on minimum pad of 2 oz copper	2
Drain-to-Source Breakdown Voltage	BVDSS	40			V	ID = 250 A, VGS = 0 V	2
Zero Gate Voltage Drain Current	IDSS			10	A	VDS = 40 V, VGS = 0 V	2
Gate-to-Source Leakage Current, Forward	IGSS	-100		100	nA	VGS = +20/−16 V, VDS = 0 V	2
Gate-to-Source Threshold Voltage	VGS(th)	1.2	1.5	2	V	VGS = VDS, ID = 50 A	2
Drain-to-Source On Resistance	rDS(on)		3.7	4.5	m	VGS = 10 V, ID = 10 A	2
Drain-to-Source On Resistance	rDS(on)		5.8	7	m	VGS = 4.5 V, ID = 8 A	2
Source to Drain Diode Forward Voltage	VSD		0.78	1.2	V	VGS = 0 V, IS = 10 A (Note 2)	3

CAD (KiCad official)

Symbol: NTTFD4D0N04HLTWG
Footprint: Package_DFN_QFN:WDFN-12-1EP_3x3mm_P0.45mm_EP1.7x2.5mm
3D model: WDFN-12 (KiCad packages3D, STEP)
3D model files: nttfd4d0n04hltwg-etched.step / nttfd4d0n04hltwg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); nttfd4d0n04hltwg.step / nttfd4d0n04hltwg.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: onsemi datasheet (9 pp, sha256 bc880a54daabf264, retrieved 2026-11-05, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF

NTTFD4D0N04HLTWG

Verified NTTFD4D0N04HLTWG

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3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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