Mfr Part #:

2N3251

Mfr Name: Raytheon

The Raytheon 2N3251 is an NPN silicon transistor designed for general-purpose applications. It features a TO-18 package and operates with a collector-emitter voltage of up to 40V.

✓ Total Stock: 4 pcs

$ Price Range: $0.09

2N3251 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Bristol Electronics ✓ Non-Authorised Inventory information	4 pcs On Request	4 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

2N3251 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Raytheon
Delay Time	6 ns
Input Capacitance	8 pF
Mounting Type	Through Hole
SVHC Present	Not Present

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2N3251 Description

Short technical summary and product information.

The Raytheon 2N3251 is a general-purpose NPN silicon bipolar junction transistor (BJT) housed in a TO-18 (TO-206AA) package. It is designed for a variety of amplification and switching applications.

Key electrical characteristics include a maximum collector-emitter voltage (Vceo) of 40V and a maximum collector current (Ic) of 200mA. The device offers a DC forward current transfer ratio (hFE) ranging from 150 to 300, depending on the operating conditions. Saturation voltages are kept low, with VCE(sat) typically below 0.25V at 10mA collector current and 1.0mA base current.

With a current-gain bandwidth product (fT) of up to 300 MHz, the 2N3251 is suitable for moderate frequency applications. Its operating temperature range spans from -65°C to +200°C, and it has a low junction-to-case thermal resistance of 0.15°C/mW.

The TO-18 package is designed for through-hole mounting, making it suitable for traditional PCB assembly. This transistor is a reliable choice for engineers seeking a versatile component for signal amplification and switching circuits.

2N3251 Quick Information

Product Type: NPN Silicon Transistor

Canonical Name: 2N3251 NPN Silicon Transistor

Subcategory: Single

2N3251 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

Lead Free: Yes

2N3251 Estimated Pricing

Qty	Low	High
1+	$0.09	$0.09

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

2N3251 Features

NPN silicon transistor in TO-18 package.
Maximum collector-emitter voltage of 40V.
Maximum collector current of 200mA.
DC current gain (hFE) up to 300.
Bandwidth product up to 300 MHz.

2N3251 Applications

Used in general purpose switching circuits.
Ideal for low-power amplifier stages.
Suitable for signal processing applications.
Can be used in oscillator circuits.
Works in high-frequency small-signal designs.

2N3251 FAQs

6 frequently asked questions generated from this part’s specifications.

What is the maximum collector-emitter voltage (Vceo) of the 2N3251?

The maximum Vceo is 40 Vdc.

What is the operating temperature range of the 2N3251?

The device can operate and be stored from -65°C to +200°C.

What package does the 2N3251 come in?

The 2N3251 is available in a TO-18 through-hole package.

What is the DC current gain (hFE) of the 2N3251?

The hFE ranges from 150 to 300 depending on collector current and test conditions.

What is the gain-bandwidth product of the 2N3251?

The minimum current-gain bandwidth product (fT) is 250 MHz at IC=10mA, VCE=20V.

What are the switching times of the 2N3251?

Typical switching times: delay 6ns, rise 12ns, storage 200ns, fall 250ns under specified test conditions.