FMMT494QTA NPN silicon planar medium power transistor, 120V VCEO, 1A continuous collector current, in SOT23-3 surface mount package.
Mfr Part #:

FMMT494QTA

Available from 1 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
NPN silicon planar medium power transistor, 120V VCEO, 1A continuous collector current, in SOT23-3 surface mount package.
Total Stock: 46,020 pcs
$ Price Range: $0.23 - $0.76

FMMT494QTA Available from 1 distributor

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46,020 pcs
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FMMT494QTA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
AEC-Q101
Automotive Grade
Base Current (IB)
Case Material
Collector-Base Breakdown Voltage (VCBO)
Collector-Emitter Breakdown Voltage (VCEO)
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Electrostatic Discharge - Human Body Model (HBM)
Electrostatic Discharge - Machine Model (MM)
Emitter-Base Breakdown Voltage (VEBO)
Frequency
Halogen Free
Mounting Type
Operating Temperature
Peak Pulse Collector Current (ICM)
Power
SVHC Present
Standard Package Quantity
Storage Temperature
Supplier Device Package
Tape & Reel
Terminal Finish
Thermal Resistance Junction to Ambient (RθJA)
Thermal Resistance Junction to Lead (RθJL)
Transistor Type
UL Flammability Classification
Vce Saturation (Max) @ Ib, Ic
Voltage
Weight

FMMT494QTA Description

Short technical summary and product information.

The FMMT494QTA is a 120V NPN silicon planar medium power transistor designed for automotive applications. It features a continuous collector current rating of 1A and a peak pulse current of 2A, making it suitable for medium power switching and amplification circuits. The device offers a DC current gain (hFE) of 100 minimum at 250mA, 10V, and a low VCE saturation voltage of 300mV at 500mA. With a transition frequency of 100MHz, it is capable of efficient high-frequency operation.

 

Thermal performance is managed with a maximum power dissipation of 500mW, and junction-to-ambient thermal resistance of 250°C/W. The transistor operates over a wide junction temperature range from -55°C to 150°C, ensuring reliability in harsh environments. The device is housed in a surface-mount SOT23-3 package (also known as TO-236-3 and SC-59), which is lightweight (0.008 grams) and designed for automated assembly.

 

Environmental compliance includes RoHS3 compliance, total lead-free construction, and halogen-free molding compound. The part is AEC-Q101 qualified, meeting automotive reliability standards, and is PPAP capable. Moisture sensitivity is Level 1 per J-STD-020, allowing unlimited floor life. The terminals have matte tin finish for excellent solderability per MIL-STD-202, Method 208.

FMMT494QTA Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Canonical Name: FMMT494QTA - NPN Silicon Planar Medium Power Transistor
Subcategory: Medium Power Transistor

FMMT494QTA Compliance

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

FMMT494QTA Estimated Pricing

Qty Low High
1+ $0.76 $0.76
10+ $0.47 $0.47
100+ $0.30 $0.30
500+ $0.23 $0.23
3,000+ $0.23 $0.23

Estimated market price range - modelled values for guidance only, not live distributor offers.

FMMT494QTA Features

  • NPN bipolar junction transistor for medium power applications.
  • Collector-emitter breakdown voltage of 120V minimum.
  • Continuous collector current rating of 1A maximum.
  • AEC-Q101 qualified for automotive reliability.
  • Surface mount SOT23-3 package for compact designs.

FMMT494QTA Applications

  • Ideal for automotive electronic control modules.
  • Suitable for general purpose switching and amplification.
  • Used in power management and driver circuits.
  • Recommended for medium power linear applications.

FMMT494QTA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the FMMT494QTA?

The junction temperature range is -55°C to 150°C.

What package is the FMMT494QTA available in?

It is supplied in a surface-mount SOT23-3 package (also designated TO-236-3 and SC-59).

Is the FMMT494QTA RoHS compliant?

Yes, it is RoHS3 compliant, totally lead-free, and halogen-free (green device).

What is the collector-emitter breakdown voltage (VCEO) of the FMMT494QTA?

The minimum VCEO is 120V.

What is the continuous collector current rating?

The maximum continuous collector current is 1A.

Is the FMMT494QTA qualified for automotive use?

Yes, it is AEC-Q101 qualified for automotive applications.

What is the transition frequency (fT) of the FMMT494QTA?

The transition frequency is 100 MHz.

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