KA-4040SYSK The Kingbright KA-4040SYSK is a yellow SMT LED with a water-clear lens. It offers a luminous intensity of 250 mcd and a wide 120° viewing angle.
Mfr Part #:

KA-4040SYSK

Available from 1 distributors
Mfr Name: Kingbright
Kingbright
The Kingbright KA-4040SYSK is a yellow SMT LED with a water-clear lens. It offers a luminous intensity of 250 mcd and a wide 120° viewing angle.
Total Stock: 169 pcs
$ Price Range: $0.99

KA-4040SYSK Available from 1 distributor

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169 pcs
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KA-4040SYSK Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Capacitance
Color
Dimensions
Forward Voltage
Lens Transparency
Material
Mounting Type
Number of LEDs
Operating Temperature
Power Dissipation
Reverse Current
Reverse Voltage
Tape & Reel
Viewing Angle
Wavelength

KA-4040SYSK Description

Short technical summary and product information.

This Kingbright KA-4040SYSK is a single-chip yellow Light Emitting Diode (LED) designed for surface mount technology (SMT).

 

Key electrical specifications include a typical forward voltage of 2V, a maximum forward current of 30mA, and a reverse voltage rating of 5V. The LED emits a bright yellow light with a peak wavelength of 590 nm and a luminous intensity of 250 mcd at a typical forward current. It features a wide 120° viewing angle, making it suitable for various indicator applications.

 

The LED is constructed with AlGaInP material and has a water-clear lens finish. Its compact dimensions of 4 x 4 x 3.6 mm make it ideal for space-constrained designs. The operating temperature range is from -40°C to 85°C.

 

Packaged in reels of 500 pieces, this component is RoHS3 compliant and has an MSL of 1, indicating unlimited shelf life under recommended conditions.

KA-4040SYSK Quick Information

Product Type: LED
Canonical Name: Kingbright KA-4040SYSK Yellow SMT LED
Subcategory: SMT LED

KA-4040SYSK Compliance

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

KA-4040SYSK Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

KA-4040SYSK Features

  • Yellow SMT LED
  • 250 mcd luminous intensity
  • 120° wide viewing angle
  • 4x4x3.6mm dimensions
  • RoHS3 compliant

KA-4040SYSK Applications

  • Suitable for indicator and display lighting.
  • Used in electronic signaling and illumination.
  • Ideal for water-clear LED applications.
  • Applicable in low-voltage LED indicator circuits.
  • Suitable for SMT assembly in compact devices.

KA-4040SYSK FAQs

7 frequently asked questions generated from this part’s specifications.
What color is the Kingbright KA-4040SYSK LED?

The Kingbright KA-4040SYSK LED is super bright yellow.

What is the luminous intensity of the KA-4040SYSK LED?

The luminous intensity is 250 mcd.

What is the viewing angle of the KA-4040SYSK LED?

The viewing angle is 120 degrees.

What is the typical forward voltage for the KA-4040SYSK LED?

The typical forward voltage is 2V.

What is the maximum forward current for this LED?

The maximum forward current is 30mA.

What are the dimensions of the KA-4040SYSK LED?

The dimensions are 4 x 4 x 3.6 mm.

What is the operating temperature range for this LED?

The operating temperature range is -40 to 85 °C.

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