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2N490A

Texas Instruments

2N490A by Texas Instruments

2N490A by Texas Instruments is a Unijunction Transistor (UFT) with max emitter current of 70mA, max inter-base voltage of 65V, and max power dissipation of 0.45W. It is used for switching applications due to its silicon element material and isolated case connection.

Median Price

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Lifecycle Status

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3

In-Stock Inventory

1k+

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Vyrian

USA . 9,864 parts In-Stock

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Digiode

USA . 4,383 parts In-Stock

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PUI

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Native Components

USA . 375 parts In-Stock

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$0.197

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$0.189

375

$0.197

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$0.189

Northwest PG Solutions

USA . 2,197 parts In-Stock

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$0.217

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$0.191

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Parana Technologies

USA . 438 parts In-Stock

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$0.647

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$1.709

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438

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$1.709

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DigiPath Technology Company

USA . 395 parts In-Stock

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$0.712

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$0.655

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395

$0.712

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ChromeModa Solutions

Germany . 2,178 parts In-Stock

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$0.727

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$0.596

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IDEA Electronic Components Group

UK . 249 parts In-Stock

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$0.727

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$0.654

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One Stop Electronics

USA . 1,434 parts In-Stock

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$7.050

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AZTECH Wire

Italy . 816 parts In-Stock

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Semicontronic

India . 669 parts In-Stock

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$31.050

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$30.274

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$30.118

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Ampacity Inc.

Singapore . 1,425 parts In-Stock

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SupplyDigital Components

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Problanco Electronics

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TANS Electronics

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Kulean Microsystems

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Corphita

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UHIMA Technologies

Türkiye . 721 parts In-Stock

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Corohmni

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Overview

Discover the power and precision of the Texas Instruments 2N490A Unijunction Transistor. Built with quality and reliability in mind, this single configuration transistor is perfect for switching applications. With a maximum emitter current of 70mA and a wide operating temperature range, this transistor offers unmatched performance in a compact cylindrical package. Whether you're designing consumer electronics or industrial machinery, the 2N490A delivers exceptional value and efficiency. Trust Texas Instruments to provide cutting-edge technology that meets your needs.

Feature Benefit Bullets

Package Body Material: METAL

Metal package body provides excellent thermal conductivity, allowing the transistor to dissipate heat efficiently during operation.

Configuration: SINGLE

Single configuration simplifies circuit design and ensures easy integration into various electronic systems.

Transistor Application: SWITCHING

Designed specifically for switching applications, ensuring reliable performance and fast response times.

Maximum Emitter Current: 70 mA

High maximum emitter current allows for handling of medium-power loads, expanding the range of applications for this transistor.

Package Shape: ROUND

Round package shape provides uniform stress distribution, enhancing the overall reliability of the component.

Terminal Form: WIRE

Wire terminals offer secure connections and ease of soldering, simplifying installation and maintenance processes.

Maximum Inter-base Voltage: 65 V

High maximum inter-base voltage rating ensures the transistor's durability and protection against overvoltage conditions.

Maximum Power Dissipation (Abs): 0.45 W

Low power dissipation allows for energy-efficient operation and minimizes the risk of overheating, extending the transistor's lifespan.

Package Style (Meter): CYLINDRICAL

Cylindrical package style offers compact design and easy mounting options, making it ideal for space-constrained applications.

Maximum Operating Temperature: 140 °C

High maximum operating temperature range ensures reliable performance in various environmental conditions, enhancing the transistor's versatility.

Transistor Element Material: SILICON

Silicon transistor element material provides stable and predictable electrical characteristics, ensuring consistent performance over time.

Minimum Operating Temperature: -65 °C

Wide minimum operating temperature range allows for use in extreme cold environments without compromising performance.

Minimum Intrinsic Stand-off Ratio: 0.51

Low minimum intrinsic stand-off ratio ensures efficient switching capabilities and minimal leakage current, enhancing overall circuit efficiency.

Maximum Static Inter-Base Resistance: 9.1 kohm

High maximum static inter-base resistance provides stable and reliable inter-stage isolation, reducing the risk of signal crosstalk or interference.

Terminal Position: BOTTOM

Bottom terminal position allows for easy PCB layout and soldering processes, simplifying assembly and maintenance tasks.

Case Connection: ISOLATED

Isolated case connection enhances safety and prevents potential short-circuits, ensuring the reliability and longevity of the transistor.

Maximum Intrinsic Stand-off Ratio: 0.62

High maximum intrinsic stand-off ratio improves switching performance and signal integrity, enabling precise control and accurate operation.

Minimum Static Inter-Base Resistance: 6.2 kohm

Low minimum static inter-base resistance minimizes signal loss and distortion, ensuring clear and consistent output responses.

Minimum Valley Point Current: 8 mA

Low minimum valley point current ensures stable operation in the active region, allowing for reliable switching and control functions.

Maximum Peak Point Current: 12 mA

High maximum peak point current capability provides headroom for sudden load changes and transient conditions, improving the transistor's overall robustness.

Technical Specifications

Unijunction Transistors (UFT) 2N490A attributes and parameters. Explore more Unijunction Transistors (UFT) devices from Texas Instruments

Specs

Case Connection:

ISOLATED

Configuration:

Maximum Emitter Current:

70 mA

Maximum Inter-base Voltage:

65 V

Maximum Intrinsic Stand-off Ratio:

.62

Minimum Intrinsic Stand-off Ratio:

.51

JEDEC-95 Code:

TO-5

JESD-30 Code:

O-MBCY-W3

No. of Elements:

1

No. of Terminals:

3

Maximum Operating Temperature:

140 Cel

Minimum Operating Temperature:

-65 Cel

Package Body Material:

METAL

Package Shape:

ROUND

Package Style (Meter):

CYLINDRICAL

Maximum Peak Point Current:

12 mA

Peak Reflow Temperature (C):

NOT SPECIFIED

Maximum Power Dissipation (Abs):

Qualification:

Not Qualified

Maximum Static Inter-Base Resistance:

9.1 kohm

Minimum Static Inter-Base Resistance:

6.2 kohm

Sub-Category:

Unijunction Transistors

Surface Mount:

NO

Terminal Form:

WIRE

Terminal Position:

BOTTOM

Maximum Time At Peak Reflow Temperature (s):

NOT SPECIFIED

Transistor Application:

SWITCHING

Transistor Element Material:

SILICON

Minimum Valley Point Current:

8 mA

Trade Compliance

2N490A Transistors trade compliance attributes, and parameters.

ECCN

EAR99

ECCN Governance

EAR

NSN

5961-01-124-9682, 5961011249682

NIIN

011249682

Manufacturer Highlights

Texas Instruments

Texas Instruments Inc. (TI) is one of the world's leading semiconductor companies and a global leader in analog and digital signal processing technology. The company has had a major impact on the electronics industry for over 80 years, manufacturing integrated circuits (ICs), software and subsystems that leverage high-performance computing capabilities. It offers an extensive portfolio of solutions for a wide range of industries, from aerospace to medical devices and consumer products to communication systems. Over its long history, TI has become synonymous with quality, reliability and innovation. Today, TI is one of the largest semiconductor companies in the world with operations in more than 30 countries across six continents.

The material and information contained is this video is for educational and general information purposes. All rights remain with respective rightsholders. Fair Use Statement

Management team

President, CEO

Haviv Ilan

Chairman

Richard K. Templeton

Senior VP, CFO

Rafael R. Lizardi

Manufacturer fab locations 15

Fab name Location Fab Initiation Wafer Capacity

M - Fab

Fabrication

Fab Initiation

1997

USA

South Portland

Wafer Capacity

32,000

1997

32,000

D - FAB

Fabrication

Fab Initiation

1966

USA

Dallas

Wafer Capacity

42,000

1966

42,000

D MOS - 6

Fabrication

Fab Initiation

2002

USA

Dallas

Wafer Capacity

25,000

2002

25,000

D MOS - 5

Fabrication

Fab Initiation

1995

USA

Dallas

Wafer Capacity

75,000

1995

75,000

Miho - 8

Fabrication

Fab Initiation

1980

Japan

Inashiki

Wafer Capacity

43,000

1980

43,000

S FAB 1

Fabrication

Fab Initiation

1966

USA

Sherman

Wafer Capacity

91,000

1966

91,000

F - FAB

Fabrication

Fab Initiation

2001

Germany

Freising

Wafer Capacity

37,000

2001

37,000

R Fab 1

Fabrication

Fab Initiation

2010

USA

Richardson

Wafer Capacity

40,000

2010

40,000

D HC Line

Fabrication

Fab Initiation

1999

USA

Dallas

Wafer Capacity

2,000

1999

2,000

JV3

Fabrication

Fab Initiation

2001

Japan

Aizu Wakamatsu

Wafer Capacity

45,000

2001

45,000

C - FAB

Fabrication

Fab Initiation

2007

China

Chengdu

Wafer Capacity

30,000

2007

30,000

L - Fab

Fabrication

Fab Initiation

2015

USA

Lehi

Wafer Capacity

70,000

2015

70,000

R - Fab 2

Fabrication

Fab Initiation

2022

USA

Richardson

Wafer Capacity

2022

S - FAB 2

Fabrication

Fab Initiation

2025

USA

Sherman

Wafer Capacity

2025

S - FAB 3

Fabrication

Fab Initiation

2028

USA

Sherman

Wafer Capacity

2028

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