DistyParts Icon
2N491A The 2N491A is a bipolar junction transistor with 450mW power dissipation in a TO-5 package.
Mfr Part #:

2N491A

Available from 1 distributors
Mfr Name: N-A
N-A
The 2N491A is a bipolar junction transistor with 450mW power dissipation in a TO-5 package.
✓ Total Stock: 24 pcs
$ Price Range: $0.85

2N491A Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Husky International Electronic ✓
Non-Authorised Inventory information
24 pcs
On Request
24 pcs On Request 1 On Request On Request N/A On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

2N491A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Power Dissipation
View Similar Products (0)

2N491A Description

Short technical summary and product information.

The 2N491A is a bipolar junction transistor (BJT) designed for general purpose amplification and switching applications. It features a power dissipation rating of 450mW and is housed in a TO-5 metal can package. The TO-5 package provides robust mechanical support and thermal performance for moderate power levels. This transistor is suitable for use in a variety of electronic circuits where low to medium power handling is required.

2N491A Quick Information

Product Type: Bipolar Transistor
Canonical Name: 2N491A Bipolar Transistor
Subcategory: Single BJT

2N491A Compliance

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

2N491A Estimated Pricing

Qty Low High
1+ $0.85 $0.85

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

2N491A Features

  • Rated for 450mW power dissipation.
  • TO-5 package for reliable mounting.
  • Unijunction transistor for timing circuits.
  • High-reliability option per MIL-PRF-19500.

2N491A Applications

  • Used in thyristor-triggering circuits.
  • Used in oscillator circuits.
  • Used in pulse circuits.
  • Used in timing circuits.

2N491A FAQs

1 frequently asked questions generated from this part’s specifications.
What is the package type of the 2N491A transistor?

The 2N491A is available in a TO-5 package.

2N491A Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
View All Alternate Parts
TPC8223-H
TPC8223-H
Toshiba
The Toshiba TPC8223-H is a dual N-channel MOSFET with a 30V drain-to-source voltage and a continuous drain current of 9A. It features a low Rds On of 17mOhm at 4.5A, 10V.
View Part
NSBC124EMXWTBG
NSBC124EMXWTBG
On Semiconductor
The On Semiconductor NSBC124EMXWTBG is an NPN Bias Resistor Transistor (BRT) designed for surface mount applications. It offers a 50V collector-emitter voltage and 100mA collector current.
View Part
TPC8405(TE12L.Q.M)
TPC8405(TE12L.Q.M)
Toshiba
The Toshiba TPC8405(TE12L.Q.M) is an N and P-channel MOSFET array with a 30V drain-to-source voltage rating. It features a 450mW maximum power dissipation.
View Part
ICE3BS02G
ICE3BS02G
Infineon
The Infineon ICE3BS02G is an AC DC converter featuring Active Burst Mode for low standby power. It operates with an input voltage range of 9V to 21V and provides a 22V output.
View Part
Home

Categories