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Infineon Technologies BTS441RSBKSA1 — Power Management (PMIC / Gate Driver)

Infineon BTS441RSBKSA1 PROFET High-Side Switch, 15 mOhm

MPNBTS441RSBKSA1
Obsolete

Infineon PROFET® BTS441RSBKSA1, high-side power switch, single N-channel output, 15 mOhm Rds(on) typical, 17 A max output, 4.75 V to 43 V load voltage, TO-220-5 through-hole package, -40°C to 150°C junction temperature.

Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BTS441RSBKSA1 specifications
ParameterValue
SeriesPROFET®
Input typeNon-Inverting
Output typeN-Channel
TypeGeneral Purpose
MountingThrough Hole
Voltage - load4.75V ~ 43V
Voltage - supply (Vcc (Vdd))Not Required
Output current17A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C ~ 150°C (TJ)
PackageTube
FeaturesStatus Flag
Rds on15mOhm
CaseTO-220-5
Fault protectionCurrent Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage
Output configurationHigh Side
Ratio - Input:Output1:1

Product details

No official successor or direct-replacement order code is listed on the Infineon lifecycle record.

Typical on-resistance is 15 mOhm. At the 17 A maximum output current, conduction loss hits roughly 4.3 W — that number sets the heatsinking requirement for the TO-220-5 package. The PG-TO220-5-12 footprint has a metal tab; a clip-on or screw-down heatsink is expected for sustained loads near the current ceiling.

The load supply range spans 4.75 V to 43 V, covering nominal 12 V and 24 V automotive and industrial buses with margin for load-dump transients. The device does not require a Vcc/Vdd supply — it is self-powered from the load rail, simplifying the gate-drive circuit.

Integrated fault protection — fewer external components

Fault protection includes current limiting (fixed), open-load detection, over-temperature shutdown, and over-voltage clamp. These replace the discrete sense resistor, comparator, and TVS diode a bare MOSFET solution would need. The Status Flag output reports fault conditions to a microcontroller or logic input.

Through-hole TO-220-5 — rework and mechanical fit

The TO-220-5 through-hole package (PG-TO220-5-12) is a five-lead variant of the standard TO-220. The through-hole leads survive multiple rework cycles under a soldering iron or hot-air station — the thermal mass of the tab is the main challenge for hand-soldering, not the leads themselves.

Frequently asked questions

Is BTS441RSBKSA1 obsolete?

Yes, the BTS441RSBKSA1 carries an Obsolete lifecycle status.

What is the Rds(on) of BTS441RSBKSA1?

Typical Rds(on) is 15 mOhm. At 17 A maximum output current, expect roughly 4.3 W conduction loss — factor that into the heatsink selection for the TO-220-5 package.