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Infineon Technologies BTS3018TCATMA1 — Power Management (PMIC / Gate Driver)

BTS3018TCATMA1 Infineon HITFET Low-Side Power Switch – 18

MPNBTS3018TCATMA1
Active

Infineon HITFET® series, BTS3018TCATMA1, single-channel low-side N-channel power switch, 18 mOhm typical Rds(on), 6 A max output, 60 V load, TO-263-3 (PG-TO263-3-2) package.

$7.9300Ref. price · indicative, final on quote
Infineon Technologies BTS3018TCATMA1 datasheet (PDF)
PackagingTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
RoHSROHS3 Compliant
SeriesHITFET®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BTS3018TCATMA1 specifications
ParameterValue
SeriesHITFET®
Input typeNon-Inverting
Output typeN-Channel
TypeGeneral Purpose
MountingSurface Mount
Voltage - load60V (Max)
Voltage - supply (Vcc (Vdd))Not Required
Output current6A
I/O channels1
InterfaceOn/Off
Operating temperature-40°C ~ 150°C (TJ)
PackageTape & Reel (TR) Cut Tape (CT)
Rds on18mOhm
CaseTO-263-3, D²Pak (2 Leads + Tab), TO-263AB
Fault protectionCurrent Limiting (Fixed), Over Temperature, Over Voltage
Output configurationLow Side
Ratio - Input:Output1:1

Product details

18 mOhm low-side switch for 6 A loads — what it handles and where it fits

The BTS3018TCATMA1 is a single-channel low-side N-channel power switch from Infineon's HITFET® family, rated for 6 A continuous output at a typical on-resistance of 18 mOhm. It switches general-purpose resistive, inductive, or lamp loads up to 60 V. The input is a simple On/Off logic signal (non-inverting) — no external Vcc supply needed, so it works directly from a microcontroller GPIO. Output configuration is low-side, meaning the load connects between the positive supply and the switch drain, and the switch sinks current to ground.

Fault protection and temperature range — why the BOM gets simpler

Built-in fault protection includes fixed current limiting, over-temperature shutdown, and over-voltage clamping. That 150 °C ceiling suits under-hood automotive, industrial motor drives, and outdoor telecom enclosures. The 6 A rating holds across the full range as long as the package thermal resistance is managed.

Active production status and package availability

Infineon lists the BTS3018TCATMA1 as Active. The part is ROHS3 compliant. The PG-TO263-3-2 package is a standard surface-mount D²Pak footprint (TO-263-3), compatible with reflow soldering profiles used for power devices.

Frequently asked questions

What is the Rds(on) of the BTS3018TCATMA1?

Typical Rds(on) is 18 mOhm. That's the on-resistance at 25 °C junction temperature; expect it to rise with temperature per the normalised curve in the datasheet — roughly 1.5× at 150 °C junction.

Does the BTS3018TCATMA1 require a heatsink?

At 6 A continuous load, the 18 mOhm Rds(on) produces about 0.65 W conduction loss. For higher ambient temperatures or reduced copper area, a heatsink or forced airflow may be needed — the thermal resistance junction-to-ambient (RthJA) is specified in the datasheet.

What is the closest functional second-source to the BTS3018TCATMA1?

Within the same HITFET® family, the BTS142DATMA1 is a lower-current sibling (4.6 A, 23 mOhm, 42 V load) with auto-restart after fault. It is not a pin-for-pin replacement — the BTS3018 has higher current and voltage ratings and latches off on fault. For a direct replacement, stay with the BTS3018TCATMA1.

Where can I buy the BTS3018TCATMA1 and get a price?

We source the BTS3018TCATMA1 through our distribution network. Submit an RFQ with your target quantity — we confirm availability and current pricing per order. The part is active and ROHS3 compliant, so no last-time-buy constraints apply.