FDS8958A vs FDS8949

This in-depth comparison of the FDS8958A and FDS8949 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

FDS8958A

Fairchild Semiconductor

Lifecycle: Active
Stock: 3494 PCS
Package: SOIC-8
Series: Transistors - FETs, MOSFETs - Arrays

+BOM RFQ

Part B

FDS8949

Fairchild Semiconductor

Lifecycle: Active
Stock: 6681 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	FDS8958A	FDS8949
Series	PowerTrench®	PowerTrench®
Part Status	Active	Active
FET Type	N and P-Channel	2 N-Channel (Dual)
FET Feature	Logic Level Gate	Logic Level Gate
Drain to Source Voltage (Vdss)	30V	40V
Current - Continuous Drain(Id) @ 25°C	7A, 5A	6A
Rds On(Max) @ Id Vgs	28mOhm @ 7A, 10V	29mOhm @ 6A, 10V
Vgs(th)(Max) @ Id	3V @ 250µA	3V @ 250µA
Gate Charge(Qg)(Max) @ Vgs	16nC @ 10V	11nC @ 5V
Input Capacitance(Ciss)(Max) @ Vds	575pF @ 15V	955pF @ 20V
Power - Max	900mW	2W
Mounting Type	Surface Mount	Surface Mount
Operating Temperature	-	-55°C ~ 150°C (TJ)

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