TLRG4420CU Equivalent & Substitute Parts

Part Overview

The TLRG4420CU is a green diffused T-1 through-hole LED manufactured by Vishay Semiconductor Opto Division, designed for LED indication applications with a dominant wavelength of 569nm. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The TLRG4420CU operates at 10V forward voltage with 10mcd brightness and features a 60° viewing angle in a standard radial package configuration.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLRG4420CU
Manufacturer	Vishay Semiconductor Opto Division
Product Status	Obsolete
Color	Green
Lens Transparency	Diffused
Lens Size	3mm, T-1
Voltage - Forward (Vf) (Typ)	10V
Millicandela Rating	10mcd
Viewing Angle	60°
Mounting Type	Through Hole
Wavelength - Dominant	569nm
Wavelength - Peak	565nm
Package / Case	Radial
Height (Max)	6.10mm
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the TLRG4420CU are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Color: Green (all substitutes maintain green color specification)
Lens Transparency: Diffused (optical characteristic match)
Lens Size: 3mm, T-1 (mechanical form factor)
Mounting Type: Through Hole, Radial (board integration compatibility)
Package / Case: Radial (electrical connection method)
RoHS Status: ROHS3 Compliant (regulatory compliance)
Moisture Sensitivity Level: 1 (Unlimited) (environmental tolerance)

Secondary Compatibility Parameters:

Wavelength - Peak: 565-575nm range (green spectrum compatibility)
Viewing Angle: 35-140° (application-dependent selection)
Forward Voltage (Vf): 2V to 12V (circuit design dependent)
Millicandela Rating: 1.6mcd to 50mcd (brightness level selection)

Substitutes are presented in order of closest electrical and mechanical alignment to the original TLRG4420CU specification.

Parameter Comparison

Parameter	TLRG4420CU	264-7SYGD/S530-E2	3GD-F	3GDL-F	414SYGD/S530-E2	4302F5-12V	5219323F	HLMP-1503-D00FG	HLMP-1640
Manufacturer	Vishay	Everlight	Bivar	Bivar	Everlight	VCC	Dialight	Broadcom	Broadcom
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
Color	Green	Yellow-Green	Green	Green	Yellow-Green	Green	Green	Green	Green
Lens Transparency	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused
Lens Size	3mm, T-1	2.90mm Dia	3mm, T-1	3mm, T-1	3.00mm Dia	3mm, T-1	3.00mm Dia	3mm, T-1	3mm, T-1
Voltage - Forward (Vf) (Typ)	10V	2V	2.1V	2.1V	2V	12V	7.5V	2.1V	5V
Millicandela Rating	10mcd	50mcd	25mcd	4mcd	12.5mcd	8mcd	19mcd	4.2mcd	1.6mcd
Viewing Angle	60°	60°	35°	35°	140°	60°	60°	60°	60°
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Wavelength - Peak	565nm	575nm	568nm	568nm	575nm	565nm	565nm	565nm	565nm
Package / Case	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial
Height (Max)	6.10mm	6.20mm	5.30mm	5.30mm	7.00mm	6.35mm	5.86mm	6.35mm	6.35mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All substitute parts listed are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting the regulatory and environmental requirements of the original TLRG4420CU.

For direct voltage replacement (10V operation): The 4302F5-12V from Visual Communications Company operates at 12V forward voltage, providing the closest electrical match for 10V circuit designs. This part maintains green color, diffused lens, 3mm T-1 form factor, and 60° viewing angle with active product status.

For low-voltage circuit designs (2V-5V operation): The HLMP-1640 from Broadcom Limited operates at 5V forward voltage and maintains all mechanical and optical specifications of the original part. This part offers the largest inventory availability (21,912 pcs) and active product status.

For brightness-critical applications: The 3GD-F from Bivar Inc. provides 25mcd brightness at 2.1V forward voltage, offering higher luminous intensity than the original 10mcd specification while maintaining green color and diffused lens characteristics.

For low-brightness indicator applications: The 3GDL-F from Bivar Inc. operates at 2.1V with 4mcd brightness and 2mA test current, suitable for applications requiring minimal power consumption.

All substitute parts maintain through-hole radial mounting compatibility and are available in active production status, ensuring long-term supply chain reliability.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with different forward voltage in my circuit? A: Forward voltage determines the circuit design requirements. Substitutes with different Vf ratings require circuit redesign or the use of appropriate current-limiting resistors. The 4302F5-12V at 12V is closest to the original 10V specification. Lower voltage substitutes (2V-5V range) require different circuit configurations.

Q: Are all substitute parts mechanically compatible with the original PCB footprint? A: All listed substitutes use through-hole radial mounting with 3mm T-1 lens size, maintaining mechanical compatibility. Height variations range from 5.30mm to 7.00mm compared to the original 6.10mm maximum height. Verify PCB clearance for parts exceeding original height specifications.

Q: What is the difference between green and yellow-green color options? A: The 264-7SYGD/S530-E2 and 414SYGD/S530-E2 are yellow-green (573nm dominant wavelength) rather than pure green (569nm). These provide different color appearance suitable for applications where yellow-green indication is acceptable or preferred.

Q: Which substitute offers the best brightness match to the original 10mcd specification? A: The 5219323F from Dialight provides 19mcd at 7.5V forward voltage, offering the closest brightness level above the original specification. The 3GD-F provides 25mcd at 2.1V for applications accepting higher brightness.

Q: Are all substitutes RoHS compliant? A: All listed substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the environmental and regulatory compliance of the original TLRG4420CU.

Q: What viewing angle options are available? A: Viewing angles range from 35° (3GD-F, 3GDL-F) to 140° (414SYGD/S530-E2). The original 60° specification is maintained by most substitutes, including the 4302F5-12V, 5219323F, HLMP-1503-D00FG, and HLMP-1640.

Q: Which substitute has the largest inventory availability? A: The HLMP-1640 from Broadcom Limited has 21,912 pcs in stock, providing the highest inventory availability among all listed substitutes.

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