LED Circuit Board Indicator 5640740444F Equivalent & Substitute Parts

Part Overview

The Dialight 5640740444F is an active LED Circuit Board Indicator featuring a 3-high configuration with green and yellow LEDs in a 3mm T-1 through-hole right-angle package. This component is designed for circuit board mounting applications requiring dual-color status indication. The part is ROHS3 compliant and maintains unlimited moisture sensitivity rating (MSL 1), making it suitable for standard industrial and commercial environments. Substitute parts are identified based on matching electrical performance, mechanical compatibility, and compliance certifications while accommodating minor design variations in lens and optical characteristics.

Substiute Parts

5640740444F

DialightIn Stock: 8325640740444F Datasheet

Current PartRFQ

5640700444F

DialightIn Stock: 8215640700444F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5640740444F is determined by the following critical parameters:

• Electrical Compatibility: Voltage rating (2.1V), wavelength specifications (565nm green, 585nm yellow), and millicandela output (6.3mcd green, 4.3mcd yellow) must match or exceed the main part requirements
• Mechanical Compatibility: Configuration (3 High), lens size (3mm T-1), and mounting type (Through Hole, Right Angle) must be identical
• Color Configuration: Dual green and yellow LED arrangement with 3-high stacking must be preserved
• Compliance & Reliability: RoHS3 compliance and MSL 1 rating must be maintained
• Optical Characteristics: Viewing angle (80°) and lens type variations (domed vs. diffused) are permissible when electrical and mechanical parameters remain constant

The identified substitute part 5640700444F maintains all critical electrical and mechanical parameters while incorporating a diffused lens type and specified 20mA current rating, representing a functionally equivalent alternative within the same product series.

Parameter Comparison

Engineering Selection Recommendations

Both the 5640740444F and 5640700444F are active products from Dialight's 564 series, maintaining full ROHS3 compliance and MSL 1 rating. Selection between these parts should be based on the following engineering criteria:

5640740444F is appropriate when a domed lens optical profile is required for specific light distribution or aesthetic requirements in the application.

5640700444F is appropriate when a diffused lens type is preferred for uniform light distribution or when the specified 20mA current rating aligns with circuit design parameters.

Both parts maintain identical electrical performance (voltage, wavelength, millicandela output) and mechanical compatibility (3-high configuration, 3mm T-1 through-hole right-angle mounting). The choice between domed and diffused lens types does not affect functional substitution capability, provided the application's optical requirements are satisfied by the selected lens characteristic.

Frequently Asked Questions (FAQ)

Q: Can the 5640700444F directly replace the 5640740444F in existing designs?

A: Yes, both parts share identical electrical specifications (2.1V voltage, 565nm/585nm wavelengths, 6.3mcd/4.3mcd output), mechanical mounting (through-hole right-angle, 3mm T-1), and configuration (3-high green/yellow). The primary difference is lens type (domed vs. diffused), which affects light distribution but not electrical compatibility.

Q: What is the significance of the diffused lens type in the substitute part?

A: The diffused lens in the 5640700444F provides broader light scattering compared to the domed lens in the 5640740444F. This affects viewing angle distribution and intensity profile but maintains the specified 80° viewing angle and millicandela ratings for both parts.

Q: Are both parts suitable for the same PCB mounting applications?

A: Yes. Both parts use identical through-hole right-angle mounting, allowing direct PCB footprint compatibility. No layout or assembly modifications are required when substituting between these parts.

Q: Do compliance certifications differ between the main part and substitute?

A: No. Both parts maintain ROHS3 compliance, MSL 1 rating, and REACH unaffected status, ensuring equivalent environmental and regulatory compliance.

Q: Is the 20mA current specification in the substitute part a limiting factor?

A: The 20mA specification in the 5640700444F represents the rated operating current for that design. The main part does not specify current rating. Both parts operate at 2.1V and deliver identical millicandela output, making them electrically equivalent for standard circuit board indicator applications.