TLHG5100 Equivalent & Substitute Parts

Part Overview

The TLHG5100 is a green LED indicator manufactured by Vishay Semiconductor Opto Division, designed for through-hole mounting applications. This T-1 3/4 radial LED features a clear lens with 450mcd brightness at 2.4V forward voltage and 569nm dominant wavelength. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain compatibility with the through-hole radial package format and deliver comparable optical and electrical performance within the green spectrum range.

Key Parameters

Parameter	TLHG5100 Value
Manufacturer	Vishay Semiconductor Opto Division
Package Type	T-1 3/4 Radial Through Hole
Color	Green
Lens Transparency	Clear
Voltage - Forward (Vf) Typical	2.4V
Current - Test	20mA
Millicandela Rating	450mcd
Wavelength - Dominant	569nm
Wavelength - Peak	565nm
Viewing Angle	18°
Mounting Type	Through Hole
Lens Size	5.80mm Dia
Height Maximum	13.20mm
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the TLHG5100 is determined by the following critical parameters:

Package Compatibility: All substitute parts must use T-1 3/4 radial through-hole mounting to ensure mechanical fit in existing PCB designs.

Optical Specifications: Substitute parts must emit green light within the 563nm to 572nm wavelength range to maintain color consistency and visual compatibility.

Electrical Parameters: Forward voltage (Vf) must fall within 1.8V to 2.4V range, and test current must be compatible with 20mA standard LED drive circuits.

Brightness Range: Millicandela ratings between 40mcd and 980mcd are acceptable, as brightness variations are accommodated through circuit design and application requirements.

Lens Configuration: Clear or diffused lens options are both acceptable for indication applications, though lens transparency may affect viewing characteristics.

Compliance Requirements: All substitute parts must maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating to meet regulatory and reliability standards.

Parameter Comparison

Part Number	Manufacturer	Color	Vf (Typ)	mcd Rating	Wavelength Peak	Viewing Angle	Height Max	Product Status	RoHS3
TLHG5100	Vishay	Green	2.4V	450mcd	565nm	18°	13.20mm	Obsolete	Compliant
4300H5LC	VCC	Green	1.8V	2.3mcd	565nm	50°	8.89mm	Not For New Designs	Compliant
5219201	Dialight	-	-	-	-	-	-	Active	Compliant
5219201F	Dialight	Green	2.1V	60mcd	565nm	-	-	Active	Compliant
5GC	Bivar Inc.	Green	2.1V	40mcd	568nm	35°	8.50mm	Active	Compliant
LTL-4238	Lite-On Inc.	Green	2.1V	90mcd	565nm	16°	8.60mm	Active	Compliant
LTL2P3KGKNN	Lite-On Inc.	Green	2.1V	980mcd	575nm	22°	8.70mm	Active	Compliant
LTL2R3KGKNN	Lite-On Inc.	Green	2.1V	680mcd	575nm	30°	8.70mm	Active	Compliant
MV3450	onsemi	Green	2.2V	150mcd	565nm	24°	8.89mm	Obsolete	-
SLA-570MT3F	Rohm Semiconductor	Green	2.3V	470mcd	563nm	25°	8.85mm	Not For New Designs	Compliant
SSL-LX50595UPGC125	Lumex Opto/Components Inc.	-	-	-	-	-	-	Active	Compliant

Engineering Selection Recommendations

Primary Substitutes (Active Status): LTL2R3KGKNN, LTL2P3KGKNN, and LTL-4238 from Lite-On Inc. are recommended as primary substitutes. These parts maintain active product status, ROHS3 compliance, and deliver electrical and optical parameters within acceptable ranges for the TLHG5100 application. LTL2R3KGKNN provides 680mcd brightness with 2.1V forward voltage and 30° viewing angle, closely matching the original part's performance envelope.

Secondary Substitutes (Active Status): 5GC from Bivar Inc. and 5219201F from Dialight offer active product status with compatible T-1 3/4 radial packages. These parts operate at 2.1V forward voltage and deliver green wavelengths within specification. 5219201F is specifically designed as a lamp replacement for midget flange base applications.

Obsolete Alternatives: MV3450 from onsemi shares obsolete status with the TLHG5100 and should be avoided for new designs. SLA-570MT3F from Rohm Semiconductor is classified as "Not For New Designs" and is not recommended for ongoing production.

Limited Data Parts: 5219201 and SSL-LX50595UPGC125 have incomplete parameter documentation and should be evaluated only when specific application requirements cannot be met by fully documented alternatives.

Frequently Asked Questions (FAQ)

Q: Can I use any green LED as a substitute for the TLHG5100?

A: No. Substitutes must meet specific criteria: T-1 3/4 radial through-hole package format, green wavelength between 563nm and 572nm, forward voltage between 1.8V and 2.4V, and ROHS3 compliance. Package mismatch will prevent proper PCB mounting.

Q: What is the difference between clear and diffused lens options?

A: Clear lens LEDs (TLHG5100, LTL2R3KGKNN, 5GC) provide focused light output with narrower viewing angles. Diffused lens LEDs (4300H5LC) scatter light over wider viewing angles. Selection depends on application visibility requirements and viewing geometry.

Q: Why is the TLHG5100 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Active substitutes from Lite-On Inc., Bivar Inc., and Dialight provide equivalent functionality with ongoing availability and support.

Q: How do brightness differences affect substitution?

A: The TLHG5100 operates at 450mcd. Substitutes ranging from 40mcd to 980mcd are acceptable because circuit design accommodates brightness variation through resistor selection and drive current adjustment. Application-specific visibility requirements determine optimal brightness selection.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended active substitutes maintain ROHS3 compliance. MV3450 does not list RoHS status and should be avoided. Compliance verification is required before component selection for regulated applications.

Q: What viewing angle should I select?

A: The TLHG5100 provides 18° viewing angle. Substitutes range from 16° to 50°. Narrower angles (16°-30°) concentrate light for focused indication. Wider angles (35°-50°) distribute light for broader visibility. Select based on PCB layout and visibility requirements.

Q: Can I substitute the TLHG5100 with a surface-mount LED?

A: No. The TLHG5100 is a through-hole radial component. Surface-mount substitutes require PCB redesign and are outside the scope of direct equivalent replacement.

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