Infineon HEXFET Type N-Channel MOSFET, 161 A, 30 V Enhancement, 3-Pin TO-252

RS Stock No.:: 165-5923
Mfr. Part No.:: IRLR7843TRPBF
Brand:: Infineon

Infineon HEXFET Type N-Channel MOSFET, 161 A, 30 V Enhancement, 3-Pin TO-252

Subtotal (1 reel of 2000 units)*

£680.00

(exc. VAT)

£820.00

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

Plus 12,000 unit(s) shipping from 29 December 2025

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Units	Per unit	Per Reel*
2000 +	£0.34	£680.00

*price indicative

RS Stock No.:: 165-5923
Mfr. Part No.:: IRLR7843TRPBF
Brand:: Infineon

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Infineon
	Product Type	MOSFET
	Channel Type	Type N
	Maximum Continuous Drain Current Id	161A
	Maximum Drain Source Voltage Vds	30V
	Series	HEXFET
	Package Type	TO-252
	Mount Type	Surface
	Pin Count	3
	Maximum Drain Source Resistance Rds	4mΩ
	Channel Mode	Enhancement
	Typical Gate Charge Qg @ Vgs	34nC
	Minimum Operating Temperature	-55°C
	Forward Voltage Vf	1V
	Maximum Gate Source Voltage Vgs	20 V
	Maximum Power Dissipation Pd	140W
	Maximum Operating Temperature	175°C
	Standards/Approvals	No
	Length	6.73mm
	Height	2.39mm
	Width	6.22 mm
	Automotive Standard	No

	Select all
	Brand Infineon
	Product Type MOSFET
	Channel Type Type N
	Maximum Continuous Drain Current Id 161A
	Maximum Drain Source Voltage Vds 30V
	Series HEXFET
	Package Type TO-252
	Mount Type Surface
	Pin Count 3
	Maximum Drain Source Resistance Rds 4mΩ
	Channel Mode Enhancement
	Typical Gate Charge Qg @ Vgs 34nC
	Minimum Operating Temperature -55°C
	Forward Voltage Vf 1V
	Maximum Gate Source Voltage Vgs 20 V
	Maximum Power Dissipation Pd 140W
	Maximum Operating Temperature 175°C
	Standards/Approvals No
	Length 6.73mm
	Height 2.39mm
	Width 6.22 mm
	Automotive Standard No

COO (Country of Origin):: CN

Infineon HEXFET Series MOSFET, 161A Maximum Continuous Drain Current, 140W Maximum Power Dissipation - IRLR7843TRPBF

This MOSFET is tailored for high-performance applications in the electrical and electronics sectors, especially suitable for automotive and industrial needs. Its HEXFET technology ensures impressive efficiency and reliability, making it Ideal for high-frequency synchronous buck converters and isolated DC-DC converters. The device effectively manages power dissipation, enhancing the performance of electronic systems.

Features & Benefits

• Extremely low RDS(on) optimises power loss and efficiency

• High continuous drain current rating supports intensive applications

• Designed for high operating temperatures to ensure performance

• Lead-free construction meets environmentally conscious design standards

• Low gate charge improves switching behaviour in circuits

Applications

• Used in high-frequency synchronous buck converters

• Employed in isolated DC-DC converters for telecom systems

• Serves automotive power management systems

• Suitable for industrial power supplies requiring enhanced efficiency

• Ideal for power regulation in computer processors

What are the typical thermal performance characteristics?

The maximum operating temperature is +175°C with a thermal resistance of 50°C/W from junction to ambient, ensuring effective performance in thermal environments.

How does the low RDS(on) affect overall circuit design?

Low RDS(on) reduces conduction losses, leading to improved efficiency under varying load conditions, which is Crucial for high-performance designs.

Can it handle Pulse currents effectively?

Yes, it can accommodate pulsed drain currents of up to 620 A, ensuring operational reliability under dynamic loads.

What mounting methods are compatible with this component?

As a surface mount component in DPAK package, it is suitable for automated assembly processes.

Is it suitable for use in automotive applications?

Yes, its specifications, including a maximum drain-source voltage rating of 30V, make it fitting for automotive power systems.

Infineon Schottky Diodes & MOSFETs – Matched for Power, Built for Efficiency

Pair Infineon Schottky diodes with Infineon MOSFETs for a high-efficiency power solution that’s optimised from the ground up. Designed to work together, they deliver fast switching, low losses, and excellent thermal performance—ideal for SMPS, motor drives, and automotive systems. Reduce design complexity and boost reliability with components engineered for synergy.

Explore the Infineon range today