LTL307VRKNN Equivalent & Substitute Parts

Part Overview

The LTL307VRKNN is a red LED indicator manufactured by Lite-On Inc., designed for through-hole mounting applications. This T-1 3/4 (5mm) package LED operates at 1.9V forward voltage with a dominant wavelength of 631nm and delivers 1150mcd at 20mA test current. The part is Active status and ROHS3 compliant, with 1011 units currently in stock.

Substitute parts are necessary when the original LTL307VRKNN becomes unavailable, when alternative brightness levels are required for specific circuit designs, or when different viewing angles better suit application requirements while maintaining electrical compatibility.

Key Parameters

Parameter	LTL307VRKNN
Manufacturer	Lite-On Inc.
Color	Red
Lens Size	5mm, T-1 3/4
Voltage - Forward (Vf) (Typ)	1.9V
Current - Test	20mA
Millicandela Rating	1150mcd
Viewing Angle	40°
Wavelength - Dominant	631nm
Mounting Type	Through Hole
Package / Case	Radial
Height (Max)	8.60mm
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Mandatory Compatibility Parameters:

Color: Red
Mounting Type: Through Hole
Package / Case: Radial
Lens Size: 5mm, T-1 3/4
Voltage - Forward (Vf) (Typ): 1.9V (primary group) or 2.1V (secondary group with circuit verification)
Current - Test: 20mA

Variable Parameters (Application-Dependent):

Millicandela Rating: Ranges from 1150mcd to 18150mcd depending on circuit brightness requirements
Viewing Angle: Ranges from 8° to 40° depending on application visibility needs
Wavelength - Dominant: 626nm to 631nm (red spectrum, visually equivalent)
Height (Max): 8.60mm to 12.62mm (mechanical fit verification required)

All substitute parts listed are manufactured by Broadcom Limited, are Active status, and maintain ROHS3 compliance. Substitute parts with 1.9V forward voltage are direct electrical replacements. The HLMP-EG1G-Y10DD operates at 2.1V and requires circuit verification before substitution.

Parameter Comparison

Part Number	Manufacturer	Vf (Typ)	mcd	Viewing Angle	Wavelength - Dominant	Height (Max)	Product Status	RoHS Status
LTL307VRKNN	Lite-On Inc.	1.9V	1150	40°	631nm	8.60mm	Active	ROHS3
HLMP-EG08-WZ000	Broadcom Limited	1.9V	10750	8°	626nm	8.91mm	Active	ROHS3
HLMP-EG08-X1000	Broadcom Limited	1.9V	14100	8°	626nm	8.91mm	Active	ROHS3
HLMP-EG08-Y2000	Broadcom Limited	1.9V	18150	8°	626nm	8.91mm	Active	ROHS3
HLMP-EG08-YZ000	Broadcom Limited	1.9V	12650	8°	626nm	8.91mm	Active	ROHS3
HLMP-EG10-WZ000	Broadcom Limited	1.9V	10750	8°	626nm	12.62mm	Active	ROHS3
HLMP-EG15-PS000	Broadcom Limited	1.9V	1690	15°	626nm	8.91mm	Active	ROHS3
HLMP-EG15-RU000	Broadcom Limited	1.9V	2850	15°	626nm	8.91mm	Active	ROHS3
HLMP-EG15-UX000	Broadcom Limited	1.9V	6250	15°	626nm	8.91mm	Active	ROHS3
HLMP-EG1G-Y10DD	Broadcom Limited	2.1V	15150	15°	626nm	8.91mm	Active	ROHS3
HLMP-EG24-PS000	Broadcom Limited	1.9V	1690	23°	626nm	8.91mm	Active	ROHS3

Engineering Selection Recommendations

Direct Electrical Replacement (1.9V Forward Voltage):

All Broadcom HLMP-EG series parts operating at 1.9V forward voltage are electrically compatible with the LTL307VRKNN. Selection among these substitutes depends on application-specific brightness and viewing angle requirements:

HLMP-EG08 series (8° viewing angle): Select when narrow-angle, high-brightness indication is required. Available in 10750mcd, 14100mcd, 12650mcd, and 18150mcd ratings.
HLMP-EG10-WZ000 (8° viewing angle, 12.62mm height): Verify mechanical fit in PCB layout due to increased height.
HLMP-EG15 series (15° viewing angle): Select for moderate viewing angle applications. Available in 1690mcd, 2850mcd, and 6250mcd ratings.
HLMP-EG24-PS000 (23° viewing angle, 1690mcd): Select for wide-angle, low-brightness indication.

Alternative Voltage (2.1V Forward Voltage):

HLMP-EG1G-Y10DD operates at 2.1V and requires circuit verification. This part is suitable only if the driving circuit can accommodate the 0.2V voltage differential without exceeding component ratings or reducing brightness below acceptable levels.

Compliance and Availability:

All substitute parts maintain ROHS3 compliance and Active product status. Broadcom parts feature MSL 1 (Unlimited) moisture sensitivity versus Lite-On MSL 2A (4 Weeks), providing superior storage stability.

Frequently Asked Questions (FAQ)

Q: Can HLMP-EG08 series parts directly replace the LTL307VRKNN?

A: Yes, electrically. HLMP-EG08 parts operate at 1.9V forward voltage and 20mA test current, matching the LTL307VRKNN. However, they deliver significantly higher brightness (10750mcd to 18150mcd versus 1150mcd) and narrower viewing angle (8° versus 40°). Circuit brightness control or optical design changes may be necessary.

Q: What is the difference between HLMP-EG08, HLMP-EG10, HLMP-EG15, and HLMP-EG24 series?

A: These series differ in viewing angle and physical height. HLMP-EG08 provides 8° viewing angle at 8.91mm height. HLMP-EG10 provides 8° viewing angle at 12.62mm height. HLMP-EG15 provides 15° viewing angle at 8.91mm height. HLMP-EG24 provides 23° viewing angle at 8.91mm height. Select based on application visibility requirements and PCB mechanical constraints.

Q: Can I use HLMP-EG1G-Y10DD as a substitute?

A: HLMP-EG1G-Y10DD operates at 2.1V forward voltage, 0.2V higher than the LTL307VRKNN. Substitution requires circuit verification to confirm the driving circuit can accommodate this voltage differential without exceeding maximum ratings or causing unacceptable brightness variation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed Broadcom substitute parts are ROHS3 compliant and Active status, matching the LTL307VRKNN compliance profile.

Q: What viewing angle should I select?

A: Viewing angle selection depends on application requirements. The LTL307VRKNN provides 40° viewing angle for wide-angle indication. Narrower angles (8° to 23°) concentrate light intensity for higher brightness in a specific direction. Verify application visibility requirements before selection.

Q: Are there height differences I should consider?

A: Yes. Most Broadcom substitutes are 8.91mm height versus LTL307VRKNN at 8.60mm (0.31mm difference). HLMP-EG10-WZ000 is 12.62mm height. Verify PCB layout clearance and component placement constraints before substitution.

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