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FMMT491ATA
Bipolar (BJT) Single Transistor, NPN, 40 V, 1 A, 500 mW, SOT-23, Surface Mount
Image is for illustrative purposes only. Please refer to product description.
ManufacturerDIODES INC.
Manufacturer Part NoFMMT491ATACopy
Manufacturer Standard Lead Time44 weeks
Order Code
Full Reel4318747
Re-Reel3127388RL
Cut Tape3127388
Your Part Number
9 In Stock
12,000 more incoming. You can reserve stock now
9 Delivery in 3-4 Business Days(UK stock)
Packaging Options
| Packaging Type | Quantity | Unit Price: | Total |
|---|---|---|---|
| Cut Tape | 5 | RM1.710 | RM8.55 |
| Total Price | RM8.55 | ||
Cut Tape & Re-Reel
| Quantity | Price |
|---|---|
| 5+ | RM1.710 |
| 50+ | RM1.400 |
| 100+ | RM1.080 |
| 500+ | RM0.721 |
| 1500+ | RM0.707 |
Full Reel
| Quantity | Price |
|---|---|
| 3000+ | RM0.334 |
Line Note
Added to your Order Confirmation, Invoice, and Dispatch note for this order only.
Product Information
ManufacturerDIODES INC.
Manufacturer Part NoFMMT491ATACopy
Manufacturer Standard Lead Time44 weeks
Order Code
Full Reel4318747
Re-Reel3127388RL
Cut Tape3127388
Technical Datasheet
Transistor PolarityNPN
Collector Emitter Voltage Max40V
Continuous Collector Current1A
Power Dissipation500mW
Transistor Case StyleSOT-23
Transistor MountingSurface Mount
No. of Pins3Pins
Transition Frequency150MHz
DC Current Gain hFE Min300hFE
Operating Temperature Max150°C
Product Range-
Qualification-
SVHCNo SVHC (04-Feb-2026)
Product Overview
FMMT491ATA is a NPN silicon planar medium power transistor.
- RCE(sat) = 195mohm for a low equivalent on-resistance
- hFE characterized up to 2A for high current gain hold up
- Qualified to AEC-Q101 standards for high reliability, PPAP capable
- Collector-base voltage/collector-emitter voltage is 40V at TA = +25°C
- Emitter-base voltage is 7V at TA = +25°C
- Continuous collector current is 1A at TA = +25°C
- Peak pulse current is 2A at TA = +25°C
- Base current is 200mA at TA = +25°C
- SOT23 case
- Operating and storage temperature range from -55 to +150°C
Technical Specifications
Transistor Polarity
NPN
Continuous Collector Current
1A
Transistor Case Style
SOT-23
No. of Pins
3Pins
DC Current Gain hFE Min
300hFE
Product Range
-
MSL
MSL 1 - Unlimited
Collector Emitter Voltage Max
40V
Power Dissipation
500mW
Transistor Mounting
Surface Mount
Transition Frequency
150MHz
Operating Temperature Max
150°C
Qualification
-
SVHC
No SVHC (04-Feb-2026)
Technical Docs (2)
Legislation and Environmental
Country of Origin:
Country in which last significant manufacturing process was carried outCountry of Origin:China
Country in which last significant manufacturing process was carried out
Country in which last significant manufacturing process was carried outCountry of Origin:China
Country in which last significant manufacturing process was carried out
Tariff No:85412900
US ECCN:EAR99
EU ECCN:NLR
RoHS Compliant:Yes
RoHS
RoHS Phthalates Compliant:Yes
RoHS
SVHC:No SVHC (04-Feb-2026)
Download Product Compliance Certificate
Product Compliance Certificate
Weight (kg):.000082