TLHG5101 Equivalent & Substitute Parts

Part Overview

The TLHG5101 is a green LED indicator manufactured by Vishay Semiconductor Opto Division, designed for through-hole mounting applications. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance requirements. The TLHG5101 delivers 450mcd brightness at 2.4V forward voltage with a 569nm dominant wavelength, housed in a T-1 3/4 radial package with clear lens transparency.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLHG5101
Manufacturer	Vishay Semiconductor Opto Division
Color	Green
Wavelength - Dominant	569nm
Wavelength - Peak	565nm
Voltage - Forward (Vf) Typical	2.4V
Current - Test	20mA
Millicandela Rating	450mcd
Lens Color	Colorless
Lens Transparency	Clear
Lens Style	Round with Domed Top
Lens Size	5.80mm Dia
Viewing Angle	18°
Mounting Type	Through Hole
Package / Case	Radial
Supplier Device Package	T-1 3/4
Height (Max)	13.20mm
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TLHG5101 is determined by the following critical parameters:

Primary Compatibility Criteria:

Color: Green
Package Type: T-1 3/4 Radial through-hole
Mounting Type: Through Hole
Lens Style: Round with Domed Top
Wavelength Range: 565nm to 575nm peak wavelength
Forward Voltage Range: 1.8V to 2.2V typical
Current Rating: 2mA to 20mA test current

Secondary Compatibility Factors:

Lens Transparency: Clear or Diffused
Lens Color: Colorless, Green, or White
Millicandela Rating: 30mcd to 980mcd
Viewing Angle: 16° to 60°
RoHS and REACH Compliance Status

Substitute parts must maintain mechanical compatibility (T-1 3/4 package, through-hole mounting) and electrical compatibility (green wavelength, forward voltage within operational range). Brightness and viewing angle variations are acceptable based on application requirements.

Parameter Comparison

Part Number	Manufacturer	Color	Vf (Typ)	Current - Test	mcd Rating	Wavelength - Peak	Lens Transparency	Viewing Angle	Height (Max)	Product Status
TLHG5101	Vishay	Green	2.4V	20mA	450mcd	565nm	Clear	18°	13.20mm	Obsolete
4300H5LC	VCC	Green	1.8V	2mA	2.3mcd	565nm	Diffused	50°	8.89mm	Not For New Designs
5219201F	Dialight	Green	2.1V	—	60mcd	565nm	—	—	—	Active
LTL-4238	Lite-On	Green	2.1V	10mA	90mcd	565nm	Clear	16°	8.60mm	Active
LTL2P3KGKNN	Lite-On	Green	2.1V	20mA	980mcd	575nm	Clear	22°	8.70mm	Active
LTL2R3KGKNN	Lite-On	Green	2.1V	20mA	680mcd	575nm	Clear	30°	8.70mm	Active
MV3450	onsemi	Green	2.2V	20mA	150mcd	565nm	Clear	24°	8.89mm	Obsolete
SSL-LX5093GC	Lumex	Green	2.2V	20mA	50mcd	565nm	Clear	30°	8.60mm	Active
SSL-LX5093GW	Lumex	Green	2.2V	20mA	30mcd	565nm	Diffused	60°	8.60mm	Active
SSL-LX5093SGC/B	Lumex	Green	2.2V	20mA	300mcd	565nm	Clear	30°	8.60mm	Active
SSL-LX5093XGC	Lumex	Green	2.2V	20mA	250mcd	565nm	Clear	20°	8.60mm	Active

Engineering Selection Recommendations

For Active Production (Recommended):

LTL2R3KGKNN (Lite-On) and SSL-LX5093SGC/B (Lumex) are the primary recommended substitutes. Both are active products with ROHS3 compliance and deliver electrical characteristics within the TLHG5101 operational envelope. LTL2R3KGKNN provides 680mcd brightness at 2.1V with 30° viewing angle, while SSL-LX5093SGC/B delivers 300mcd at 2.2V with equivalent 30° viewing angle. Both maintain T-1 3/4 through-hole package compatibility.

For Brightness-Critical Applications:

LTL2P3KGKNN (Lite-On) offers the highest brightness at 980mcd, suitable for applications requiring enhanced visibility. This part operates at 2.1V with 20mA test current and maintains clear lens transparency.

For Wide-Angle Applications:

SSL-LX5093GW (Lumex) provides 60° viewing angle with diffused lens transparency, appropriate for applications requiring broad light distribution. This part operates at 2.2V with 30mcd brightness.

Compliance Considerations:

All recommended active substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original TLHG5101 specifications. Verify REACH status requirements for specific applications.

Frequently Asked Questions (FAQ)

Q: Can I use SSL-LX5093GW as a direct replacement for TLHG5101?

A: SSL-LX5093GW is mechanically compatible (T-1 3/4 through-hole package) and electrically compatible (green wavelength, 2.2V forward voltage). However, it features diffused lens transparency and 60° viewing angle compared to the TLHG5101's clear lens and 18° viewing angle. Use this substitute only if your application tolerates wider light distribution and diffused appearance.

Q: What is the brightness difference between TLHG5101 and LTL2R3KGKNN?

A: TLHG5101 delivers 450mcd at 20mA test current, while LTL2R3KGKNN delivers 680mcd at the same 20mA test current. LTL2R3KGKNN provides approximately 51% higher brightness. Both operate within compatible forward voltage ranges (2.4V vs. 2.1V).

Q: Are all substitute parts RoHS compliant?

A: All recommended active substitute parts (LTL2R3KGKNN, LTL2P3KGKNN, LTL-4238, SSL-LX5093 series, and 5219201F) are ROHS3 compliant. The obsolete parts (TLHG5101, MV3450, 4300H5LC) may have different compliance status; verify requirements for your specific application.

Q: What is the viewing angle impact when substituting parts?

A: TLHG5101 has an 18° viewing angle. Substitute parts range from 16° to 60°. Narrower angles (16°-22°) concentrate light in a tighter cone, while wider angles (30°-60°) distribute light across a broader area. Select based on your application's visibility requirements.

Q: Can I substitute a diffused lens part for a clear lens part?

A: Mechanically and electrically, yes. However, diffused lenses scatter light and reduce peak brightness perception, while clear lenses provide focused light output. Evaluate your application's aesthetic and functional requirements before substituting lens types.

Q: What forward voltage range is acceptable for TLHG5101 substitution?

A: The TLHG5101 operates at 2.4V typical. Acceptable substitutes range from 1.8V to 2.2V typical forward voltage. Verify your circuit design accommodates this voltage variation to ensure proper LED operation and current limiting.

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