LTL-4261N Equivalent & Substitute Parts

Part Overview

The LTL-4261N is a red diffused LED indicator manufactured by Lite-On Inc., designed for through-hole mounting applications. This component is classified as Active product status and is RoHS3 compliant. The part operates at a forward voltage of 1.8V with a test current of 20mA, delivering 60mcd luminous intensity at a dominant wavelength of 638nm. Finding equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate alternative sourcing strategies when the primary component becomes unavailable or when design requirements necessitate alternative optical or electrical characteristics.

Substiute Parts

LTL-4261N

Lite-On Inc.In Stock: 785LTL-4261N Datasheet

Current PartRFQ

HLMP-NG07

Broadcom LimitedIn Stock: 6497HLMP-NG07 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTL-4261N are identified based on the following critical parameters that determine functional compatibility:

• Color: Red LED indication
• Mounting Type: Through Hole radial configuration
• Lens Size: 3mm class (3.00mm to 3mm T-1 range)
• Voltage Range: Forward voltage within acceptable circuit design tolerance (1.8V to 1.9V)
• Current Rating: 20mA test current compatibility
• Viewing Angle: 60° standard viewing angle
• Wavelength: Red spectrum (626nm to 638nm dominant wavelength)
• Compliance: RoHS3 and ECCN EAR99 classification

The HLMP-NG07 substitute meets these criteria as a functionally equivalent red LED indicator with compatible electrical and mechanical characteristics for through-hole applications.

Parameter Comparison

Engineering Selection Recommendations

Both the LTL-4261N and HLMP-NG07 are Active product status components with full RoHS3 compliance and EAR99 export classification. Selection between these parts should be based on the following provided specifications:

Forward voltage tolerance in the circuit design accommodates the 1.8V to 1.9V range. The HLMP-NG07 delivers higher luminous intensity (90.2mcd versus 60mcd), which may be advantageous in applications requiring greater visibility. The lens transparency difference (diffused versus clear) affects light distribution characteristics; the diffused lens of the LTL-4261N provides broader light scatter, while the clear lens of the HLMP-NG07 produces more concentrated output. Physical height difference (6.00mm versus 6.20mm) is negligible for most through-hole PCB layouts. Both components operate at identical test current (20mA) and viewing angle (60°), ensuring circuit compatibility. Wavelength variation (638nm dominant for LTL-4261N versus 626nm for HLMP-NG07) represents a minor shift within the red spectrum and does not affect functional interchangeability for standard indication applications.

Frequently Asked Questions (FAQ)

Q: Can HLMP-NG07 directly replace LTL-4261N in existing designs?

A: Yes, the HLMP-NG07 is functionally compatible as a substitute. Both components share identical mounting type (through-hole radial), test current (20mA), viewing angle (60°), and lens size class (3mm). Forward voltage differs by 0.1V (1.8V versus 1.9V), which is within typical circuit design tolerance for LED indicator applications. Verify that your current-limiting resistor accommodates the 1.9V forward voltage of the substitute part.

Q: What is the difference between diffused and clear lens transparency?

A: The LTL-4261N features a diffused lens that scatters light over a wider area, producing a softer, more dispersed glow. The HLMP-NG07 features a clear lens that concentrates light output, producing a brighter, more focused beam. Selection depends on application requirements for light distribution and visibility distance.

Q: Are there any compliance or certification differences?

A: Both parts are RoHS3 compliant and classified as EAR99 for export purposes. The LTL-4261N is REACH Affected, while the HLMP-NG07 is REACH Unaffected. Verify REACH compliance requirements for your specific application and end-use region.

Q: How do the luminous intensity ratings compare?

A: The HLMP-NG07 delivers 90.2mcd compared to the LTL-4261N at 60mcd. This 50% higher intensity may provide improved visibility in applications requiring greater brightness, but circuit design must account for the higher forward voltage (1.9V versus 1.8V).

Q: Is the 0.2mm height difference significant?

A: The height difference (6.00mm versus 6.20mm) is negligible for standard through-hole PCB applications and does not affect mechanical compatibility or board layout considerations.

Q: What wavelength difference should I consider?

A: The dominant wavelength shifts from 638nm (LTL-4261N) to 626nm (HLMP-NG07), representing a minor variation within the red spectrum. Both wavelengths are suitable for standard red LED indication applications and do not affect functional interchangeability.