Mfr Part #:

2N3878

Mfr Name: RCA

The RCA 2N3878 is an NPN Silicon Power Transistor in a TO-66 package. It offers a collector-emitter voltage of 50V and a continuous collector current of 4A.

✓ Total Stock: 10 pcs

$ Price Range: $1.93

2N3878 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Partservice ✓ Non-Authorised Inventory information	10 pcs On Request	10 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

2N3878 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

SELECT ALL

Category	New Products
Manufacturer Name	RCA

View Similar Products (0)

2N3878 Description

Short technical summary and product information.

The RCA 2N3878 is an NPN Silicon Power Transistor designed for general purpose power applications. It features a collector-emitter voltage (VCEO) of 50V and a collector-base voltage (VCBO) of 120V. The continuous collector current (IC) is rated at 4A, with a maximum power dissipation (PD) of 35W at 25°C case temperature.

This transistor is housed in a TO-66 package, suitable for applications requiring moderate power handling. The operating and storage junction temperature range is from -65°C to +200°C. Electrical characteristics include a minimum forward current transfer ratio (hFE) ranging from 8 to 200 depending on test conditions, and a collector-emitter saturation voltage (VCE(sat)) of up to 2.0V at 4A.

High-reliability screening is available per MIL-PRF-19500, JANTX level, by adding an 'HR' suffix to the part number. It is also available in non-RoHS (Sn/Pb plating) and RoHS compliant versions by adding a '-PBF' suffix.

Key electrical parameters include a minimum hFE of 40 at IC=0.5A, VCE=2.0V, and a maximum VCE(sat) of 2.0V at IC=4.0A, IB=0.4A. The transistor is constructed from silicon and designed for general-purpose power applications.

2N3878 Quick Information

Product Type: NPN Silicon Power Transistor

Canonical Name: 2N3878 NPN Silicon Power Transistor

Subcategory: NPN Power Transistor

2N3878 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

2N3878 Estimated Pricing

Qty	Low	High
1+	$1.93	$1.93

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

2N3878 Features

NPN Silicon Power Transistor
50V Collector-Emitter Voltage (VCEO)
4A Continuous Collector Current (IC)
35W Total Power Dissipation (PD)
TO-66 Package

2N3878 Applications

Suitable for high-power switching applications.
Used in industrial automation control systems.
Ideal for power amplifier circuits.
Applicable in motor drive and regulation circuits.
Suitable for high-reliability power transistor needs.

2N3878 FAQs

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

What is the maximum collector-emitter voltage for the 2N3878 transistor?

The maximum collector-emitter voltage (VCEO) for the 2N3878 is 50 Vdc.

What is the continuous collector current rating of the 2N3878?

The continuous collector current (IC) for the 2N3878 is 4.0 Adc.

What is the maximum power dissipation for the 2N3878 at 25°C?

The total power dissipation (PD) for the 2N3878 at 25°C is 35 W.

What is the operating junction temperature range for the 2N3878?

The operating and storage junction temperature range (TJ,Tstg) for the 2N3878 is -65 to +200 °C.

What package type is the 2N3878 transistor supplied in?

The 2N3878 transistor is supplied in a TO-66 case.

Can the 2N3878 be screened for high reliability?

Yes, the 2N3878 is available as 'HR' (high reliability) screened per MIL-PRF-19500, JANTX level, by adding 'HR' suffix to the base part number.

Is the 2N3878 available in a RoHS compliant version?

Yes, the 2N3878 is available as RoHS compliant by adding the '-PBF' suffix.