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Infineon Technologies BTS3046SDRATMA1 — Power Management (PMIC / Gate Driver)

BTS3046SDRATMA1 HITFET low-side switch, 46 mOhm, 3.6 A

MPNBTS3046SDRATMA1
Active

Infineon HITFET® BTS3046SDRATMA1, low-side N-channel power switch, single output, 46 mOhm typical Rds(on), 60 V max load voltage, 3.6 A max output current, TO-252-3 (DPak) surface-mount package, -40°C to 150°C junction temperature range.

$2.8700Ref. price · indicative, final on quote
Infineon Technologies BTS3046SDRATMA1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BTS3046SDRATMA1 specifications
ParameterValue
SeriesHITFET®
Input typeNon-Inverting
Output typeN-Channel
TypeGeneral Purpose
MountingSurface Mount
Voltage - load60V (Max)
Voltage - supply (Vcc (Vdd))Not Required
Output current3.6A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C~150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
Rds on46mOhm
CaseTO-252-3, DPak (2 Leads + Tab), SC-63
Fault protectionCurrent Limiting (Fixed), Over Temperature, Over Voltage
Output configurationLow Side
Ratio - Input:Output1:1

Product details

Single-channel low-side switch with integrated protection

The Infineon BTS3046SDRATMA1 is a single-output, low-side N-channel power switch from the HITFET® family. It switches a grounded load against a positive supply rail, controlled by a non-inverting On/Off logic input. The part integrates fixed current limiting, over-temperature protection, and over-voltage clamping, so the design does not need separate protection components around the switch.

46 mOhm Rds(on) and 3.6 A continuous rating

Typical on-resistance is 46 mOhm, which sets the conduction loss at 3.6 A to about 0.6 W — within the thermal budget of the TO-252-3 package with adequate copper on the drain tab.

The 150°C TJ max means the device can handle brief thermal excursions without derating the output current.

TO-252-3 (DPak) surface-mount package

Frequently asked questions

What is the Rds(on) of the BTS3046SDRATMA1?

The typical on-resistance is 46 mOhm. This is the conduction loss floor at the rated output current of 3.6 A. Actual Rds(on) increases with junction temperature per the normalised curve in the datasheet.