FMMT493TA NPN medium power transistor with 100V collector-emitter breakdown voltage and 1A continuous collector current. Housed in a surface-mount SOT23-3 package.
Mfr Part #:

FMMT493TA

Available from 10 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
NPN medium power transistor with 100V collector-emitter breakdown voltage and 1A continuous collector current. Housed in a surface-mount SOT23-3 package.
Total Stock: 1,663,175 pcs
$ Price Range: $0.14 - $0.52

FMMT493TA Available from 10 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,645,020 pcs
1645020 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
9,000 pcs
9000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,833 pcs
2833 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,676 pcs
2676 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,320 pcs
$0.36
Qty Price
0+ 0.36
1320 pcs $0.36
QtyPrice
0+ 0.36
1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,050 pcs
1050 pcs On Request 1 On Request On Request On Request On Request 2026-04-21 15:15:07
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1,000 pcs
1000 pcs On Request 1 On Request On Request On Request On Request On Request
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164 pcs
164 pcs On Request 1 On Request On Request On Request On Request On Request
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88 pcs
88 pcs On Request 1 On Request On Request On Request On Request On Request
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24 pcs
24 pcs On Request 1 On Request On Request On Request On Request On Request

FMMT493TA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Automotive Qualification
Base Current (IB)
Collector-Base Voltage (VCBO)
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
ESD Rating (HBM)
ESD Rating (MM)
Emitter-Base Voltage (VEBO)
Frequency
Halogen Free
Lead Spacing
Lead Style
Mounting Type
Operating Temperature
Packaging Type
Peak Collector Current (ICM)
Power
Standard Package Qty
Storage Temperature
Supplier Device Package
Tape & Reel
Terminal Finish
Thermal Resistance Junction to Ambient (RθJA)
Thermal Resistance Junction to Lead (RθJL)
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
Weight

FMMT493TA Description

Short technical summary and product information.

The FMMT493TA is an NPN medium power bipolar junction transistor from Diodes Incorporated. It features a collector-emitter breakdown voltage (BVCEO) greater than 100V and a continuous collector current rating of 1A, with a peak pulse current capability of 2A. The device dissipates up to 500mW of power.

 

Designed for general-purpose switching and amplification, the transistor offers a DC current gain (hFE) of at least 100 at 250mA collector current and 10V VCE. The saturation voltage is typically 600mV at 1A collector current. With a transition frequency of 150MHz, it is suitable for medium-speed switching applications.

 

The FMMT493TA is supplied in a surface-mount SOT23-3 package with matte tin plated leads and is available in tape and reel packaging with 3,000 units per reel. It is AEC-Q101 qualified for automotive applications and is fully RoHS compliant and halogen-free.

FMMT493TA Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Canonical Name: FMMT493TA NPN Medium Power Transistor
Subcategory: NPN Medium Power

FMMT493TA Compliance

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

FMMT493TA Estimated Pricing

Qty Low High
1+ $0.52 $0.52
10+ $0.32 $0.32
100+ $0.20 $0.20
500+ $0.15 $0.15
1,000+ $0.14 $0.14
3,000+ $0.14 $0.14

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

FMMT493TA Features

  • 100V collector-emitter breakdown voltage.
  • 1A continuous collector current rating.
  • 500mW power dissipation capability.
  • AEC-Q101 qualified for automotive use.
  • RoHS compliant and halogen-free.

FMMT493TA Applications

  • General purpose switching and amplification.
  • Medium-speed switching circuits.
  • Automotive electronic control modules.
  • Power management and load switching.

FMMT493TA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage (VCEO) of the FMMT493TA?

The maximum collector-emitter voltage (VCEO) is 100V.

What is the maximum continuous collector current for the FMMT493TA?

The maximum continuous collector current is 1A, with a peak pulse current of 2A.

What is the power dissipation rating of the FMMT493TA?

The power dissipation is 500mW.

What package does the FMMT493TA come in?

The FMMT493TA is supplied in a surface-mount SOT23-3 package.

What is the operating temperature range of the FMMT493TA?

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

Is the FMMT493TA RoHS compliant?

Yes, the FMMT493TA is fully RoHS3 compliant and lead-free.

What is the DC current gain (hFE) of the FMMT493TA?

The minimum DC current gain (hFE) is 100 at a collector current of 250mA and VCE of 10V.

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