2N3904 2N3904 is an NPN bipolar junction transistor from On Semiconductor. It features a 40V collector-emitter breakdown voltage, 200mA collector current, and 625mW power dissipation in a TO-92-3 through-hole package.
Mfr Part #:

2N3904

Available from 4 distributors
Mfr Name: On Semiconductor
On Semiconductor
2N3904 is an NPN bipolar junction transistor from On Semiconductor. It features a 40V collector-emitter breakdown voltage, 200mA collector current, and 625mW power dissipation in a TO-92-3 through-hole package.
✓ Total Stock: 200,645 pcs
$ Price Range: $0.04 - $0.44

2N3904 Available from 4 distributors

✓ Authorised
✓ Non-Authorised

2N3904 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Lead Style
Mounting Type
Operating Temperature
Power
Supplier Device Package
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

2N3904 Description

Short technical summary and product information.

The 2N3904 is a general-purpose NPN bipolar junction transistor manufactured by On Semiconductor. It is designed for low-power amplification and switching applications.

 

Key electrical specifications include a collector-emitter voltage (VCEO) of 40V, a collector current (IC) rating of 200mA, and a power dissipation of 625mW. The device offers a minimum DC current gain (hFE) of 100 at 10mA collector current and 1V VCE, with a maximum saturation voltage of 300mV at 50mA collector current. The transition frequency (fT) is 300MHz, making it suitable for moderate-speed switching and amplification.

 

The transistor is housed in a TO-92-3 (TO-226AA) through-hole package, which is widely used for discrete semiconductors. The operating junction temperature range is -55°C to 150°C.

2N3904 Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Series: 2N3904
Canonical Name: 2N3904 NPN Bipolar Transistor
Subcategory: Single NPN

2N3904 Compliance

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

2N3904 Estimated Pricing

Qty Low High
1+ $0.44 $0.44
10+ $0.30 $0.30
100+ $0.19 $0.19
500+ $0.09 $0.09
1,000+ $0.08 $0.08
2,500+ $0.06 $0.06
5,000+ $0.06 $0.06
10,000+ $0.05 $0.05
20,000+ $0.04 $0.04

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

2N3904 Features

  • NPN bipolar junction transistor design.
  • 40V collector-emitter breakdown voltage.
  • 200mA continuous collector current rating.
  • 625mW maximum power dissipation capability.
  • 300MHz transition frequency for switching.

2N3904 Applications

  • General purpose switching and amplification.
  • Signal processing in low-power circuits.
  • Driver stages for relays and LEDs.

2N3904 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the collector-emitter voltage rating of the 2N3904?

The collector-emitter voltage (VCEO) is 40V.

What is the maximum collector current for the 2N3904?

The maximum collector current (IC) is 200mA.

What package does the 2N3904 come in?

The 2N3904 is available in a TO-92-3 (TO-226AA) through-hole package.

What is the operating temperature range of the 2N3904?

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

What is the transition frequency of the 2N3904?

The transition frequency (fT) is 300MHz.

What is the DC current gain (hFE) of the 2N3904?

The minimum DC current gain (hFE) is 100 at Ic=10mA and Vce=1V.

What is the saturation voltage of the 2N3904?

The maximum collector-emitter saturation voltage is 300mV at Ib=5mA and Ic=50mA.

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