Vishay IRF840 Type N-Channel Power MOSFET, 8 A, 500 V Enhancement, 3-Pin TO-220AB IRF840PBF

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Subtotal (1 tube of 1000 units)*

PHP64,680.00

(exc. VAT)

PHP72,440.00

(inc. VAT)

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  • Shipping from February 01, 2027
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Units
Per Unit
Per Tube*
1000 - 1000PHP64.68PHP64,680.00
2000 - 4000PHP60.984PHP60,984.00
5000 +PHP55.44PHP55,440.00

*price indicative

RS Stock No.:
281-6027
Distrelec Article No.:
171-16-205
Mfr. Part No.:
IRF840PBF
Manufacturer:
Vishay
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Brand

Vishay

Channel Type

Type N

Product Type

Power MOSFET

Maximum Continuous Drain Current Id

8A

Maximum Drain Source Voltage Vds

500V

Series

IRF840

Package Type

TO-220AB

Mount Type

Through Hole

Pin Count

3

Maximum Drain Source Resistance Rds

850mΩ

Channel Mode

Enhancement

Typical Gate Charge Qg @ Vgs

63nC

Maximum Power Dissipation Pd

125W

Minimum Operating Temperature

-55°C

Maximum Gate Source Voltage Vgs

20V

Forward Voltage Vf

2V

Maximum Operating Temperature

150°C

Standards/Approvals

RoHS

Automotive Standard

No

COO (Country of Origin):
CN

Vishay IRF840 Series Power MOSFET, 500V Drain Source Voltage, 125W Power Dissipation - IRF840PBF


This power MOSFET is a high-voltage semiconductor device intended for switching and amplification in power electronics. It operates across a broad temperature span and is supplied in a through-hole TO-220AB package suited to heatsinking. The component is RoHS-compliant and employs an N-channel enhancement topology for controlling drain-source conduction in high-voltage circuits.

Features and Benefits:


• 500V drain-source rating for high-voltage applications
• 8A continuous drain current supports sustained loads
• 125W power dissipation for elevated thermal handling
• 850mΩ Rds(on) balances conduction losses and control simplicity
• 63nC total gate charge enables predictable switching control
• 20V maximum gate-source voltage allows robust gate drive

Applications


• Suitable for switch-mode power supply output stages
• Used with high-voltage motor drive circuits
• Ideal for industrial inverter switching elements
• Can be used for DC-DC converter high-side transistors
• Used for laboratory power test rigs and prototype boards

What ambient temperatures can it tolerate during operation?


It is specified to function from -55°C up to 150°C, allowing use in demanding thermal environments.

How should it be mounted for optimal thermal performance?


The TO-220AB through-hole format is designed for attachment to a heatsink using the tab and fastener to maximise thermal conduction.

What gate drive constraints must designers observe?


Gate-source voltage must not exceed 20V

typical gate drive circuitry should provide controlled transitions to manage the 63nC gate charge.

Are there any automotive-grade assurances for use in vehicles?


It is not listed as an automotive standard device, so designers should assess suitability before vehicle applications.

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