TLHG5405 LED Green Diffused T-1 3/4 Through Hole - Equivalent & Substitute Parts

Part Overview

The TLHG5405 is a green diffused LED indicator manufactured by Vishay Semiconductor Opto Division, designed for discrete indication applications. This component features a 5mm T-1 3/4 form factor with a 2.4V forward voltage and 15mcd brightness rating at 10mA test current. The part is classified as obsolete, making identification of active equivalent and substitute components essential for ongoing production and design continuity. Substitute parts must maintain functional compatibility within the through-hole radial LED category while accommodating minor variations in electrical and optical characteristics.

Key Parameters

Parameter	TLHG5405 Value	Unit
Color	Green	—
Lens Transparency	Diffused	—
Lens Size	5mm, T-1 3/4	—
Voltage - Forward (Vf) Typical	2.4V	V
Current - Test	10mA	mA
Millicandela Rating	15mcd	mcd
Viewing Angle	60°	degrees
Wavelength - Dominant	569nm	nm
Wavelength - Peak	565nm	nm
Mounting Type	Through Hole	—
Package / Case	Radial	—
Height (Max)	12.80mm	mm
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution logic for the TLHG5405 is based on the following critical parameters: color (green), lens transparency (diffused), mounting type (through hole radial), and wavelength range (565–575nm dominant). Forward voltage tolerance spans 1.8V to 2.1V, and test current ranges from 2mA to 20mA depending on the substitute part's design. Millicandela ratings vary from 2.3mcd to 200mcd across available substitutes, reflecting different brightness requirements. Viewing angle tolerance extends from 25° to 90°. All substitute parts maintain ROHS3 compliance and radial through-hole mounting configuration. Parts are grouped by product status (active vs. not for new designs) and by lens color consistency (green vs. yellow-green variants).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Color	Lens Transparency	Vf (Typ) V	Current - Test mA	Millicandela mcd	Viewing Angle °	Wavelength - Dominant nm	Wavelength - Peak nm	Height (Max) mm	Product Status	RoHS Status
TLHG5405	Vishay Semiconductor Opto Division	Green	Diffused	2.4	10	15	60	569	565	12.80	Obsolete	ROHS3 Compliant
1383SYGD/S530-E2	Everlight Electronics Co Ltd	Yellow-Green	Diffused	2.0	20	200	25	573	575	8.90	Active	ROHS3 Compliant
151051VS04000	Würth Elektronik	Green	Diffused	2.1	20	140	40	572	573	8.95	Active	ROHS3 Compliant
323-2SYGD/S530-E2	Everlight Electronics Co Ltd	Yellow-Green	Diffused	2.0	20	80	60	573	575	6.30	Active	ROHS3 Compliant
336SYGSYGD/S530-E2	Everlight Electronics Co Ltd	Yellow-Green	Diffused	2.0	20	16	90	573	575	8.90	Active	ROHS3 Compliant
4300H5LC	Visual Communications Company - VCC	Green	Diffused	1.8	2	2.3	50	—	565	8.89	Not For New Designs	ROHS3 Compliant
5219674F	Dialight	Green	Diffused	2.1	20	40	60	569	565	8.21	Active	ROHS3 Compliant
HLMP-3507-D0001	Broadcom Limited	Green	Diffused	2.1	10	4.2	60	569	565	9.19	Active	ROHS3 Compliant
HLMP-3507-D00B2	Broadcom Limited	Green	Diffused	2.1	10	4.2	—	—	565	—	Active	ROHS3 Compliant
HLMP-3680-B00B2	Broadcom Limited	Green	Diffused, Tinted	5.0	10	1.6	60	—	565	—	Active	ROHS3 Compliant
LTL-307G	Lite-On Inc.	Green	Diffused	2.1	20	19	50	569	565	8.60	Active	ROHS3 Compliant

Engineering Selection Recommendations

For direct replacement of the obsolete TLHG5405, prioritize active product status parts with matching green color and diffused lens transparency. The Würth Elektronik 151051VS04000 and Dialight 5219674F offer the closest electrical and optical alignment, with 2.1V forward voltage, 20mA test current, and 569nm dominant wavelength matching the original specification. Both parts are active and ROHS3 compliant.

The Lite-On LTL-307G provides an alternative with 2.1V forward voltage and 569nm wavelength, suitable for applications tolerating 19mcd brightness. The Broadcom HLMP-3507-D0001 maintains 2.1V forward voltage and 569nm wavelength but operates at reduced brightness (4.2mcd) and lower test current (10mA), appropriate for low-intensity indication circuits.

Everlight yellow-green variants (1383SYGD/S530-E2, 323-2SYGD/S530-E2, 336SYGSYGD/S530-E2) are active alternatives with 2.0V forward voltage and 573nm dominant wavelength. These parts accommodate applications where yellow-green color is acceptable and provide brightness options ranging from 16mcd to 200mcd.

The VCC 4300H5LC is classified as not for new designs and should be avoided for new applications despite active inventory. The Broadcom HLMP-3680-B00B2 operates at 5.0V forward voltage, incompatible with standard 2.4V circuits, and is suitable only for dedicated 5V indication circuits.

Frequently Asked Questions (FAQ)

Q: Can the TLHG5405 be directly replaced with any active substitute without circuit modification?

A: Direct replacement depends on circuit design. Parts with 2.1V forward voltage (Würth 151051VS04000, Dialight 5219674F, Lite-On LTL-307G, Broadcom HLMP-3507-D0001) are compatible with circuits designed for the original 2.4V specification. Everlight yellow-green parts operate at 2.0V and require verification of circuit tolerance. The Broadcom HLMP-3680-B00B2 at 5.0V is incompatible with standard 2.4V circuits.

Q: What is the significance of wavelength matching?

A: Wavelength determines perceived color and optical filtering compatibility. The TLHG5405 operates at 569nm dominant wavelength (565nm peak). Substitutes with matching 569nm dominant wavelength (5219674F, HLMP-3507-D0001, LTL-307G) maintain color consistency. Everlight yellow-green parts at 573nm dominant wavelength produce visually distinct color and may not be suitable for applications requiring strict green indication.

Q: How do brightness ratings affect substitution?

A: The TLHG5405 provides 15mcd at 10mA test current. Substitutes range from 1.6mcd to 200mcd. Higher brightness parts (1383SYGD/S530-E2 at 200mcd, 151051VS04000 at 140mcd) are suitable for applications requiring enhanced visibility. Lower brightness parts (HLMP-3507-D0001 at 4.2mcd, HLMP-3680-B00B2 at 1.6mcd) are appropriate for low-intensity indication or power-constrained circuits. Brightness selection depends on application visibility requirements.

Q: What packaging considerations apply to substitution?

A: The TLHG5405 uses radial through-hole T-1 3/4 packaging. All listed substitutes maintain radial through-hole mounting, ensuring PCB compatibility. Height variations range from 6.30mm to 12.80mm; verify clearance in confined spaces. Packaging format (bulk, tube, tape & reel) affects procurement but does not impact electrical or mechanical compatibility.

Q: Why are some parts marked as not for new designs?

A: The VCC 4300H5LC is classified as not for new designs, indicating manufacturer discontinuation plans or obsolescence trajectory. While inventory is available, new circuit designs should avoid this part to prevent future supply disruption. Active status parts ensure long-term availability and manufacturer support.

Q: Are all substitutes ROHS3 compliant?

A: Yes, all listed substitute parts are ROHS3 compliant, matching the original TLHG5405 compliance status. This ensures regulatory compatibility for applications subject to ROHS3 requirements.

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