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FCX491ATA NPN medium power transistor with 40V collector-emitter voltage and 1A continuous collector current. Surface mounted in SOT89-3 package.
Mfr Part #:

FCX491ATA

Available from 2 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
NPN medium power transistor with 40V collector-emitter voltage and 1A continuous collector current. Surface mounted in SOT89-3 package.
✓ Total Stock: 5,112 pcs

FCX491ATA Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
3,092 pcs
On Request
3092 pcs On Request 1 On Request On Request 20+ On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,020 pcs
On Request
2020 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

FCX491ATA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Halogen Free
Industrial Grade
Military Grade
Mounting Type
Operating Temperature
Power
SVHC Present
Storage Temperature
Supplier Device Package
Tape & Reel
Tape Width
Termination
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
Weight
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FCX491ATA Description

Short technical summary and product information.

The FCX491ATA is an NPN medium power transistor manufactured by Diodes Incorporated. It is rated for a collector-emitter voltage (VCEO) of 40V and a continuous collector current (IC) of 1A, with a peak current capability of 2A. The device features a low saturation voltage of maximum 500mV at 1A collector current and a high DC current gain (hFE) of minimum 300 at 500mA, 5V. With a transition frequency of 150MHz, it is suitable for power MOSFET gate driving and low loss power switching applications.

 

The transistor is housed in a SOT89 (TO-243AA) surface mount package with matte tin plated leads. It supports an operating junction temperature range of -65°C to 150°C and has a moisture sensitivity level of 1 (unlimited floor life). Thermal resistance from junction to ambient is 125°C/W and from junction to leads is 10.01°C/W. The device is ESD rated at 4kV for human body model and 400V for machine model.

 

Environmental compliance includes RoHS3, lead-free, and halogen-free (green) status as verified in the datasheet. The product is available in tape and reel packaging with 1,000 units per reel on 7-inch reels with 12mm tape width. The marking code is N2.

FCX491ATA Quick Information

Product Type: Bipolar Junction Transistor - Single
Canonical Name: NPN Medium Power Transistor
Subcategory: Medium Power Transistor

FCX491ATA Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): Level 1 - Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead-Free

FCX491ATA Features

  • 40V collector-emitter breakdown voltage.
  • 1A continuous collector current rating.
  • Low saturation voltage: 500mV maximum at 1A.
  • High DC current gain: minimum 300 at 500mA.
  • Surface mount SOT89-3 package.

FCX491ATA Applications

  • Power MOSFET gate driving circuits.
  • Low loss power switching applications.
  • DC-DC converter output stages.
  • General purpose medium power amplification.

FCX491ATA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the package type of FCX491ATA?

The FCX491ATA is packaged in SOT89 (TO-243AA) for surface mount assembly.

What is the operating temperature range?

The operating junction temperature range is -65°C to 150°C.

Is FCX491ATA RoHS compliant?

Yes, the datasheet confirms RoHS3 compliance, lead-free, and halogen-free (green) status.

What are the key electrical ratings of FCX491ATA?

Collector-emitter voltage (VCEO) 40V, collector current continuous 1A, peak 2A, power dissipation 1W.

What is the DC current gain of FCX491ATA?

Minimum DC current gain (hFE) is 300 at Ic=500mA, Vce=5V.

What is the moisture sensitivity level of FCX491ATA?

MSL Level 1 (unlimited floor life) per J-STD-020.

Does FCX491ATA have a complementary PNP transistor?

Yes, the complementary PNP type is FCX591A from Diodes Incorporated.

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