MMBT3904 NPN Transistor 40V 200mA SOT-23 SMD
Prices updated: 14 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Makers Electronics | MMBT3904 1AM 40V 200mW 100@10mA,1V 200mA NPN SOT-23 SMD Transistors | 2 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 2 EGP
About this product
The MMBT3904 is a general-purpose NPN bipolar junction transistor in a SOT-23 surface-mount package, commonly marked 1AM. It is rated for 40 V collector-emitter voltage and 200 mA collector current, with a transition frequency of 300 MHz, and suits switching and small-signal amplifier circuits.
Specifications
- Type
- NPN BJT / ترانزستور ثنائي القطب NPN
- Collector-emitter voltage (Vceo)
- 40 V / 40 فولت
- Collector current (Ic)
- 200 mA / 200 مللي أمبير
- Power dissipation (Pd)
- 200 mW / 200 ميلي واط
- DC current gain (hFE)
- 100 @ 10 mA, 1 V / 100 عند 10 مللي أمبير و1 فولت
- Transition frequency (fT)
- 300 MHz / 300 ميغاهرتز
- Collector cut-off current (Icbo)
- 50 nA / 50 نانو أمبير
- Package
- SOT-23 / SOT-23
Frequently asked questions
What is the price of MMBT3904 NPN Transistor 40V 200mA SOT-23 SMD in Egypt?
MMBT3904 NPN Transistor 40V 200mA SOT-23 SMD currently costs 2 EGP in Egypt.
Where can I buy MMBT3904 NPN Transistor 40V 200mA SOT-23 SMD in Egypt?
MMBT3904 NPN Transistor 40V 200mA SOT-23 SMD is available from Makers Electronics. Compare the offers above to find the best price.
What is the pinout of the MMBT3904 in SOT-23?
In the SOT-23 package, pin 1 is Base, pin 2 is Emitter and pin 3 is Collector. Confirm the orientation against the manufacturer datasheet before soldering.
How do I switch a load with an NPN transistor from a microcontroller?
Connect the load between the positive supply and the collector, with the emitter at ground. Drive the base through a resistor from the microcontroller pin; the transistor conducts when the base is about 0.6 to 0.7 V above the emitter.
