2N6427 NPN Darlington transistor with 40V collector-emitter breakdown voltage, 500mA rated collector current, and extremely high DC current gain. Available in through-hole TO-92 package.
Mfr Part #:

2N6427

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
NPN Darlington transistor with 40V collector-emitter breakdown voltage, 500mA rated collector current, and extremely high DC current gain. Available in through-hole TO-92 package.
Total Stock: 1,800 pcs
$ Price Range: $0.07

2N6427 Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,800 pcs
1800 pcs On Request 1 On Request On Request On Request On Request On Request

2N6427 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Collector Current (Absolute Maximum)
Collector-Base Voltage (VCBO)
Collector-Emitter Voltage (VCEO)
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Emitter-Base Voltage (VEBO)
Input Capacitance
Mounting Type
Operating Temperature
Output Capacitance
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Thermal Resistance - Junction to Case
Thermal Resistance Junction-to-Ambient
Transistor Type
Vbe On
Vbe Saturation
Vce Sat (Maximum @ Ib=0.5 mA, Ic=50 mA)
Vce Saturation (Max) @ Ib, Ic
Voltage
hfe (Minimum/Maximum @ Ic=10 mA, Vce=5 V)
hfe (Minimum/Maximum @ Ic=100 mA, Vce=5 V)
hfe (Minimum/Maximum @ Ic=500 mA, Vce=5 V)

2N6427 Description

Short technical summary and product information.

The 2N6427 is an NPN Darlington transistor from ON Semiconductor designed for applications requiring extremely high current gain at collector currents up to 1.0 A. It features a collector-emitter breakdown voltage of 40 V, a rated continuous collector current of 500 mA (absolute maximum 1.2 A), and a total device dissipation of 625 mW at 25°C ambient.

 

This transistor offers a DC current gain (hFE) ranging from 10,000 to 200,000 depending on test conditions, with a maximum Vce saturation voltage of 1.5 V at 500 mA collector current. The output capacitance is 7.0 pF typical, and input capacitance is 15 pF typical.

 

The 2N6427 is housed in a through-hole TO-92 (TO-226) package and operates over a junction temperature range of -55°C to 150°C. Thermal resistance junction-to-ambient is 200°C/W for the 2N6427 when mounted on FR-4 PCB. The part is also available in surface mount version MMBT6427 (SOT-23).

2N6427 Quick Information

Product Type: NPN Darlington Transistor
Canonical Name: 2N6427 NPN Darlington Transistor
Subcategory: Darlington Transistor

2N6427 Compliance

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

2N6427 Estimated Pricing

Qty Low High
5,000+ $0.07 $0.07

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

2N6427 Features

  • NPN Darlington transistor with high current gain.
  • Rated for 40V collector-emitter voltage.
  • Supports collector current up to 1.2A maximum.
  • Through-hole TO-92 package for easy mounting.
  • Operates from -55°C to 150°C junction temperature.

2N6427 Applications

  • Extremely high current gain amplification circuits.
  • Collector currents up to 1.0A for driver stages.
  • General purpose switching and linear amplification.
  • Relay and solenoid driver applications.

2N6427 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the collector-emitter voltage rating of the 2N6427?

The minimum collector-emitter breakdown voltage (V(BR)CEO) is 40 V at Ic=10 mA, Ib=0.

What package is the 2N6427 available in?

The 2N6427 is available in a through-hole TO-92 (TO-226) package.

What is the operating temperature range?

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

Is the 2N6427 RoHS compliant?

RoHS compliance is reported as RoHS3 Compliant but unverified; confidence is low. Confirm with the manufacturer.

What is the maximum collector current?

The absolute maximum continuous collector current is 1.2 A; rated continuous current is 500 mA.

What is the DC current gain (hFE) of the 2N6427?

DC current gain ranges from 10,000 to 200,000 depending on test conditions (e.g., at Ic=10 mA, Vce=5 V: 10,000 to 100,000).

What is the maximum power dissipation?

The total device dissipation at 25°C ambient is 625 mW.

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