TLRG4400CU Equivalent & Substitute Parts

Part Overview

The TLRG4400CU 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 and a forward voltage of 10V. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The 10mcd brightness rating and 60° viewing angle make it suitable for standard indication circuits requiring higher voltage operation.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLRG4400CU
Manufacturer	Vishay Semiconductor Opto Division
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
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the TLRG4400CU is determined by the following critical parameters:

Primary Substitution Criteria:

Color: Green (required match)
Lens Transparency: Diffused (required match)
Mounting Type: Through Hole (required match)
Package / Case: Radial (required match)
Lens Size: 3mm, T-1 (preferred match for mechanical compatibility)

Secondary Compatibility Factors:

Voltage - Forward (Vf): The TLRG4400CU operates at 10V. Substitutes with lower forward voltages (2V to 2.1V) require circuit redesign but maintain functional equivalence in indication applications.
Millicandela Rating: Brightness variations between 1mcd and 50mcd are acceptable depending on application requirements.
Viewing Angle: Range from 35° to 140° accommodates different optical requirements.
Wavelength - Dominant: Green wavelengths between 568nm and 573nm are functionally equivalent for visual indication.

Substitute parts are grouped into two categories: direct voltage equivalents (10V-12V forward voltage) and functional equivalents (2V-2.1V forward voltage requiring circuit modification).

Parameter Comparison

Parameter	TLRG4400CU	264-7SYGD/S530-E2	3GD-F	3GDL-F	414SYGD/S530-E2	4302F5-12V	4302F5-5V	5219210F	HLMP-1503	HLMP-1503-C0002	HLMP-1503-D0000
Color	Green	Yellow-Green	Green	Green	Yellow-Green	Green	Green	Green	Green	Green	Green
Lens Transparency	Diffused	Diffused	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	3mm, T-1	3.00mm Dia	3mm, T-1	3mm, T-1	3mm, T-1
Voltage - Forward (Vf) (Typ)	10V	2V	2.1V	2.1V	2V	12V	5V	2.1V	2.1V	2.1V	2.1V
Millicandela Rating	10mcd	50mcd	25mcd	4mcd	12.5mcd	8mcd	8mcd	12.6mcd	1mcd	2.6mcd	4.2mcd
Viewing Angle	60°	60°	35°	35°	140°	60°	60°	60°	60°	60°	60°
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Wavelength - Dominant	569nm	573nm	—	—	573nm	—	—	568nm	569nm	569nm	569nm
Wavelength - Peak	565nm	575nm	568nm	568nm	575nm	565nm	565nm	565nm	565nm	565nm	565nm
Package / Case	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial
Height (Max)	6.10mm	6.20mm	5.30mm	5.30mm	7.00mm	6.35mm	6.35mm	6.00mm	6.35mm	6.35mm	6.35mm
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Voltage Equivalents (10V-12V Forward Voltage):

The 4302F5-12V is the closest direct substitute for the TLRG4400CU, matching the 10V-12V forward voltage range and maintaining identical mechanical form factor (3mm T-1 radial package). Both parts are ROHS3 compliant and active products. The 4302F5-12V operates at 12V with 8mcd brightness and 60° viewing angle, providing functional equivalence without circuit modification.

Functional Equivalents (2V-2.1V Forward Voltage):

Parts including 3GD-F, 3GDL-F, 5219210F, HLMP-1503, HLMP-1503-C0002, and HLMP-1503-D0000 operate at 2V-2.1V forward voltage and require circuit redesign to replace the TLRG4400CU. All are ROHS3 compliant and active products. These substitutes maintain the green color, diffused lens, through-hole mounting, and radial package configuration. Brightness ratings range from 1mcd to 25mcd, accommodating various indication requirements.

Yellow-Green Alternatives:

The 264-7SYGD/S530-E2 and 414SYGD/S530-E2 provide yellow-green indication (573nm dominant wavelength) as functional alternatives where color shift is acceptable. Both are ROHS3 compliant and active products.

All substitute parts listed are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the original TLRG4400CU.

Frequently Asked Questions (FAQ)

Q: Can I directly replace TLRG4400CU with 4302F5-12V without circuit modification?

A: Yes. The 4302F5-12V operates at 12V forward voltage, compatible with the TLRG4400CU's 10V specification. Both use identical 3mm T-1 radial through-hole packages. No circuit redesign is required.

Q: What is the difference between HLMP-1503, HLMP-1503-C0002, and HLMP-1503-D0000?

A: All three are green diffused T-1 LEDs from Broadcom with 2.1V forward voltage and 60° viewing angle. They differ in millicandela rating (1mcd, 2.6mcd, and 4.2mcd respectively) and packaging format (bulk, cut tape, and bulk). Select based on brightness requirement and packaging preference.

Q: Can I use 3GD-F or 3GDL-F to replace TLRG4400CU?

A: These parts are functionally equivalent but require circuit modification. Both operate at 2.1V forward voltage compared to TLRG4400CU's 10V. The 3GD-F provides 25mcd brightness with 35° viewing angle, while 3GDL-F provides 4mcd with 35° viewing angle. Circuit redesign is necessary to accommodate the lower forward voltage.

Q: Are yellow-green LEDs acceptable substitutes?

A: The 264-7SYGD/S530-E2 and 414SYGD/S530-E2 provide yellow-green indication (573nm) instead of pure green (569nm). These are functionally equivalent for indication applications where color shift is acceptable. Both require circuit modification due to 2V forward voltage.

Q: What are the mechanical compatibility considerations?

A: All substitute parts use 3mm through-hole radial packages compatible with TLRG4400CU PCB footprints. Height variations range from 5.30mm to 7.00mm. Verify clearance in your specific application, particularly for 414SYGD/S530-E2 (7.00mm maximum height) and 3GD-F/3GDL-F (5.30mm maximum height).

Q: Which substitute offers the closest brightness match?

A: The 5219210F (12.6mcd) and 414SYGD/S530-E2 (12.5mcd) provide brightness closest to TLRG4400CU's 10mcd rating. Both require circuit modification due to lower forward voltage (2V-2V respectively).

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting regulatory requirements equivalent to the original TLRG4400CU.

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