Mfr Part #:

IRF4905PBF

P-Channel power MOSFET with 55V drain-source breakdown voltage and 74A continuous drain current. Features ultra-low on-resistance of 20mΩ and fast switching.

✓ Total Stock: 9,005 pcs

$ Price Range: $1.22 - $3.35

IRF4905PBF Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Components Technology Group, Inc. ✓ Non-Authorised Inventory information	9,000 pcs On Request	9000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Hybrid Electronics ✓ Non-Authorised Inventory information	5 pcs On Request	5 pcs	On Request	1	On Request	On Request	NO DC	On Request	On Request

IRF4905PBF Description

Short technical summary and product information.

The IRF4905PBF is a P-Channel power MOSFET from Infineon's HEXFET series. It features a drain-source breakdown voltage of -55V and continuous drain current of -74A at 25°C case temperature. The device offers ultra-low on-resistance of 20mΩ (max) at VGS = -10V, enabling high efficiency in power conversion applications.

With a total gate charge of 180nC and typical turn-on delay of 18ns, the IRF4905PBF provides fast switching performance suitable for high-frequency circuits. It is fully avalanche rated with a single pulse avalanche energy of 930mJ, ensuring robustness in inductive load switching.

The MOSFET is housed in a TO-220-3 (TO-220AB) through-hole package, offering low thermal resistance (junction-to-case 0.75°C/W) and easy heatsink mounting. Operating junction temperature range is -55°C to 175°C.

IRF4905PBF Quick Information

Product Type: MOSFET

Series: HEXFET

Canonical Name: IRF4905PBF P-Channel Power MOSFET

Subcategory: Single MOSFET

IRF4905PBF Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): Level 1 (Unlimited)

REACH Status: REACH Unaffected

Lead Free: Lead-Free

IRF4905PBF Estimated Pricing

Qty	Low	High
1+	$3.35	$3.35
10+	$2.18	$2.18
50+	$1.67	$1.67
100+	$1.50	$1.50
500+	$1.22	$1.22

Estimated market price range - modelled values for guidance only, not live distributor offers.

IRF4905PBF Features

Ultra-low on-resistance of 20 milliohms.
Rated for 55V drain-source voltage.
Continuous drain current up to 74 amps.
Fast switching with 18ns turn-on delay.
Fully avalanche rated at 930 millijoules.

IRF4905PBF Applications

Used in high-power DC-DC converters.
Ideal for motor drive circuits.
Suitable for battery protection systems.
Applied in power supply OR-ing circuits.

IRF4905PBF FAQs

7 frequently asked questions generated from this part’s specifications.

What is the drain-source breakdown voltage of the IRF4905PBF?

-55V (minimum).

What package does the IRF4905PBF come in?

TO-220-3 (TO-220AB) through-hole package.

What is the operating junction temperature range?

-55°C to 175°C.

Is the IRF4905PBF RoHS compliant?

Yes, it is listed as RoHS3 compliant and lead-free, but this is unverified.

What is the continuous drain current at 25°C?

-74A.

What is the on-resistance?

20mΩ maximum at VGS = -10V, ID = -38A.

What is the gate threshold voltage?

-2V minimum, -4V maximum.

Category	Transistors - FETs, MOSFETs - Single
Manufacturer Name	Infineon Technologies
Current	-74 A
Drain to Source Voltage (Vdss)	-55 V
Drive Voltage (Max Rds On, Min Rds On)	10 V
FET Type	P-Channel
Gate Charge (Qg) (Max) @ Vgs	180 nC
Input Capacitance (Ciss) (Max) @ Vds	3400 pF
Mounting Type	Through Hole
Operating Temperature	-55°C to 175°C
Power Dissipation (Max)	200 W
Rds On (Max) @ Id, Vgs	20 mΩ
Supplier Device Package	TO-220AB
Technology	MOSFET (Metal Oxide)
Vgs (Max)	±20 V
Vgs(th) (Max) @ Id	-2 V (min) / -4 V (max)