AO4840 vs AO4840L

This in-depth comparison of the AO4840 and AO4840L provides valuable insights into their specifications and key features. We cover important factors in detail, including RoHS compliance, REACH status, series, mounting style, package type, and other relevant characteristics. Presenting the differences side by side simplifies component selection, making it easier for you to select the best option for your specific application.

Technical review by ETEI Component Engineering Source: manufacturer documentation

Parts at a glance

Part A

AO4840

Alpha & Omega Semiconductor Inc.

Lifecycle: Active
Stock: 27328 PCS
Package: SOIC-8
Series: Transistors - FETs, MOSFETs - Arrays

+BOM RFQ

Part B

AO4840L

Alpha & Omega Semiconductor Inc.

Lifecycle: Active
Stock: 6845 PCS
Package: SOIC-8
Series: Transistors - FETs, MOSFETs - Arrays

+BOM RFQ

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification	AO4840	AO4840L
Supplier	Alpha & Omega Semiconductor Inc.	Alpha & Omega Semiconductor Inc.
Part Status	Not For New Designs	Obsolete
FET Type	2 N-Channel (Dual)	2 N-Channel (Dual)
FET Feature	Logic Level Gate	Standard
Drain to Source Voltage (Vdss)	40V	40V
Current - Continuous Drain(Id) @ 25°C	6A	6A (Ta)
Rds On(Max) @ Id Vgs	30mOhm @ 6A, 10V	31mOhm @ 6A, 10V
Vgs(th)(Max) @ Id	3V @ 250µA	3V @ 250µA
Gate Charge(Qg)(Max) @ Vgs	10.8nC @ 10V	8.3nC @ 10V
Input Capacitance(Ciss)(Max) @ Vds	650pF @ 20V	404pF @ 20V
Power - Max	2W	2W
Operating Temperature	-55°C ~ 150°C (TJ)	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount	Surface Mount

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