LTL-2P3VRKNT Equivalent & Substitute Parts

Part Overview

The LTL-2P3VRKNT is a red LED indicator from Lite-On Inc., featuring a 5mm T-1 3/4 through-hole package with 1400mcd brightness at 631nm dominant wavelength. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The component operates at 1.9V forward voltage with a 22° viewing angle and is suitable for discrete indication applications requiring radial mounting.

Key Parameters

Parameter	Value
Manufacturer Part Number	LTL-2P3VRKNT
Manufacturer	Lite-On Inc.
Product Status	Obsolete
Color	Red
Lens Size	5mm, T-1 3/4
Lens Style	Round with Domed Top
Lens Transparency	Clear
Voltage - Forward (Vf) (Typ)	1.9V
Current - Test	20mA
Millicandela Rating	1400mcd
Wavelength - Dominant	631nm
Wavelength - Peak	639nm
Viewing Angle	22°
Mounting Type	Through Hole
Package / Case	Radial
Height (Max)	8.70mm
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the LTL-2P3VRKNT is determined by the following critical parameters:

Primary Compatibility Criteria:

Lens size: 5mm, T-1 3/4 form factor
Mounting type: Through hole radial configuration
Color: Red
Lens style: Round with domed top, clear transparency
Test current: 20mA
Forward voltage: 1.9V nominal (acceptable range includes 2.0V variants)
Wavelength range: 624nm to 639nm dominant wavelength

Substitute Classification:

Group A - Direct Electrical Equivalents (1.9V Forward Voltage): Broadcom HLMP-EG08 series parts maintain identical forward voltage (1.9V) and test current (20mA) specifications. These parts feature 626nm dominant wavelength, which falls within acceptable red LED spectrum for indication applications. Variants include different millicandela ratings (8100mcd to 18150mcd) and viewing angles (8°), accommodating various brightness requirements while maintaining electrical compatibility.

Group B - Functional Equivalents (2.0V Forward Voltage): Everlight Electronics and Broadcom parts operating at 2.0V forward voltage provide functional substitution with minor circuit design consideration. These parts maintain identical mechanical form factor, lens configuration, and test current specifications. Wavelength specifications range from 624nm to 639nm, suitable for red indication applications.

Group C - Mechanical Compatibility with Enhanced Performance: The 7343-2USRC/S1060 from Everlight provides identical mechanical form factor with 2.0V forward voltage and 4000mcd brightness at 631nm wavelength, matching the original part's dominant wavelength specification.

Parameter Comparison

Parameter	LTL-2P3VRKNT	383-2SDRC/S530-A4	383-2SURC/S530-A6	7343-2USRC/S1060	HLMP-EG08-VY000	HLMP-EG08-WZ000	HLMP-EG08-WZ0DD	HLMP-EG08-X1000	HLMP-EG08-Y2000	HLMP-EG08-YZ000	HLMP-EG10-WZ000
Manufacturer	Lite-On Inc.	Everlight Electronics	Everlight Electronics	Everlight Electronics	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited	Broadcom Limited
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Color	Red	Red	Red	Red	Red	Red	Red	Red	Red	Red	Red
Lens Size	5mm, T-1 3/4	5.00mm Dia	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4
Lens Style	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top
Lens Transparency	Clear	Clear	Clear	Clear	Clear	Clear	Clear	Clear	Clear	Clear	Clear
Voltage - Forward (Vf) (Typ)	1.9V	2V	2V	2V	1.9V	1.9V	1.9V	1.9V	1.9V	1.9V	1.9V
Current - Test	20mA	20mA	20mA	20mA	20mA	20mA	20mA	20mA	20mA	20mA	20mA
Millicandela Rating	1400mcd	2780mcd	6300mcd	4000mcd	8100mcd	10750mcd	10750mcd	14100mcd	18150mcd	12650mcd	10750mcd
Wavelength - Dominant	631nm	639nm	624nm	631nm	626nm	626nm	626nm	626nm	626nm	626nm	626nm
Wavelength - Peak	639nm	650nm	632nm	639nm	635nm	635nm	635nm	635nm	635nm	635nm	635nm
Viewing Angle	22°	6°	6°	30°	8°	8°	8°	8°	8°	8°	8°
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial
Height (Max)	8.70mm	8.90mm	8.90mm	8.85mm	8.91mm	8.91mm	8.91mm	8.91mm	8.91mm	8.91mm	12.62mm
RoHS Status	Not specified	Not specified	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	Not specified	Not specified	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Direct Electrical Replacement (1.9V Forward Voltage):

The Broadcom HLMP-EG08 series provides direct electrical compatibility with the LTL-2P3VRKNT. All variants maintain 1.9V forward voltage and 20mA test current. Selection within this series depends on brightness requirements:

HLMP-EG08-VY000: 8100mcd brightness, 8° viewing angle
HLMP-EG08-WZ000: 10750mcd brightness, 8° viewing angle (bulk packaging)
HLMP-EG08-WZ0DD: 10750mcd brightness, 8° viewing angle (tape & box packaging)
HLMP-EG08-X1000: 14100mcd brightness, 8° viewing angle
HLMP-EG08-Y2000: 18150mcd brightness, 8° viewing angle
HLMP-EG08-YZ000: 12650mcd brightness, 8° viewing angle

All HLMP-EG08 variants are ROHS3 compliant and carry MSL 1 (Unlimited) rating. These parts are currently in active production status with substantial inventory availability.

For Functional Replacement with 2.0V Forward Voltage:

Everlight Electronics 383-2SDRC/S530-A4, 383-2SURC/S530-A6, and 7343-2USRC/S1060 provide functional substitution with 2.0V forward voltage. Circuit design must accommodate the 0.1V increase in forward voltage. The 7343-2USRC/S1060 offers the closest wavelength match at 631nm dominant wavelength and provides 4000mcd brightness with 30° viewing angle. This part is ROHS3 compliant and carries MSL 1 (Unlimited) rating.

For Height-Constrained Applications:

The HLMP-EG10-WZ000 maintains all electrical and optical specifications of the HLMP-EG08-WZ000 but features a maximum height of 12.62mm, compared to 8.91mm for standard variants. This part is suitable only for applications where increased height is acceptable.

Compliance Considerations:

Broadcom HLMP-EG08 series and Everlight 7343-2USRC/S1060 provide ROHS3 compliance certification. All substitute parts carry MSL 1 (Unlimited) rating, matching the original part's moisture sensitivity specification.

Frequently Asked Questions (FAQ)

Q: Can I use a 2.0V forward voltage part as a direct replacement for the 1.9V LTL-2P3VRKNT?

A: Functional substitution is possible with 2.0V parts, but circuit design must accommodate the 0.1V increase. If the original circuit uses a current-limiting resistor, the resistor value may require adjustment to maintain the same LED current. Direct pin-for-pin substitution is mechanically compatible, but electrical circuit analysis is required.

Q: What is the difference between the HLMP-EG08 and HLMP-EG10 series?

A: The HLMP-EG10-WZ000 differs from HLMP-EG08-WZ000 only in maximum height: 12.62mm versus 8.91mm. All other electrical and optical specifications are identical. The HLMP-EG10 is suitable only for applications where increased height does not create mechanical constraints.

Q: Why do substitute parts have higher millicandela ratings than the original LTL-2P3VRKNT?

A: The substitute parts listed offer brightness options ranging from 2780mcd to 18150mcd. Higher brightness variants provide design flexibility for applications requiring increased visibility. Lower brightness variants (such as the 383-2SDRC/S530-A4 at 2780mcd) are closer to the original 1400mcd specification. Selection should be based on application requirements.

Q: Are all substitute parts RoHS compliant?

A: The Broadcom HLMP-EG08 series and Everlight 7343-2USRC/S1060 are ROHS3 compliant. The Everlight 383-2SDRC/S530-A4 and 383-2SURC/S530-A6 do not specify RoHS status in the provided data. Compliance verification is required if RoHS certification is mandatory for your application.

Q: What is the viewing angle difference between the original part and substitutes?

A: The LTL-2P3VRKNT features a 22° viewing angle. Most Broadcom HLMP-EG08 variants provide 8° viewing angle, offering narrower light distribution. The Everlight 7343-2USRC/S1060 provides 30° viewing angle, offering wider light distribution. The Everlight 383-2SDRC/S530-A4 and 383-2SURC/S530-A6 provide 6° viewing angle. Application requirements determine the appropriate viewing angle selection.

Q: What packaging options are available for substitute parts?

A: Broadcom HLMP-EG08-WZ000 is available in bulk packaging. HLMP-EG08-WZ0DD is available in tape & box (TB) packaging. Other variants specify bulk packaging. Everlight parts specify bulk packaging or do not specify packaging type. Packaging selection depends on production volume and handling requirements.

Q: Is the wavelength difference between 626nm and 631nm significant for indication applications?

A: Both wavelengths fall within the red LED spectrum suitable for indication applications. The 626nm wavelength (Broadcom HLMP-EG08 series) and 631nm wavelength (Everlight 7343-2USRC/S1060 and original LTL-2P3VRKNT) produce visually similar red indication. Wavelength selection should be based on specific application color requirements and human perception standards.

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