TLHP5100 Equivalent & Substitute Parts

Part Overview

The TLHP5100 is a green LED indicator manufactured by Vishay Semiconductor Opto Division, designed for through-hole mounting in T-1 3/4 (5mm) form factor applications. This part operates at 2.4V forward voltage with a 66mcd brightness rating and features a clear, colorless lens with 18° viewing angle. The TLHP5100 is classified as obsolete, making substitute parts necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLHP5100
Manufacturer	Vishay Semiconductor Opto Division
Color	Green
Lens Size	5mm, T-1 3/4
Lens Transparency	Clear
Voltage - Forward (Vf) (Typ)	2.4V
Current - Test	20mA
Millicandela Rating	66mcd
Wavelength - Peak	555nm
Viewing Angle	18°
Mounting Type	Through Hole
Package / Case	Radial
Height (Max)	13.20mm
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the TLHP5100 is determined by the following critical parameters:

Primary Compatibility Criteria:

Color: Green (560nm–575nm wavelength range)
Lens Size: T-1 3/4 (5mm)
Mounting Type: Through Hole Radial
Lens Transparency: Clear (colorless lens preferred for consistent light transmission)
Forward Voltage Range: 2.1V–2.4V (compatible with standard indicator circuits)
Current Rating: 20mA test current
Brightness Range: 50mcd–980mcd (application-dependent selection)

Secondary Compatibility Considerations:

Viewing Angle: 16°–30° (narrow to moderate angle applications)
Height: 7.70mm–8.70mm (compact form factor preferred)
RoHS3 Compliance: Required for modern applications
Product Status: Active or Not For New Designs (obsolete parts excluded from new designs)

Substitute parts are grouped by electrical performance and optical characteristics. Parts with forward voltages between 2.1V and 2.4V and peak wavelengths between 555nm and 575nm are electrically compatible. Brightness ratings vary to accommodate different application requirements; higher brightness parts (680mcd–980mcd) suit applications requiring greater visibility, while lower brightness parts (50mcd–100mcd) are suitable for standard indicator applications.

Parameter Comparison

Part Number	Manufacturer	Color	Vf (Typ)	Current - Test	mcd Rating	Wavelength - Peak	Viewing Angle	Height (Max)	Lens Transparency	Product Status
TLHP5100	Vishay	Green	2.4V	20mA	66mcd	555nm	18°	13.20mm	Clear	Obsolete
LTL-4238	Lite-On	Green	2.1V	10mA	90mcd	565nm	16°	8.60mm	Clear	Active
LTL2P3KGKNN	Lite-On	Green	2.1V	20mA	980mcd	575nm	22°	8.70mm	Clear	Active
LTL2R3KGKNN	Lite-On	Green	2.1V	20mA	680mcd	575nm	30°	8.70mm	Clear	Active
MV3450	onsemi	Green	2.2V	20mA	150mcd	565nm	24°	8.89mm	Clear	Obsolete
SLA-560MT3F	Rohm Semiconductor	Green	2.3V	20mA	100mcd	563nm	40°	7.70mm	Clear	Not For New Designs
SSL-LX5093GC	Lumex	Green	2.2V	20mA	50mcd	565nm	30°	8.60mm	Clear	Active
SSL-LX5093SGC/B	Lumex	Green	2.2V	20mA	300mcd	565nm	30°	8.60mm	Clear	Active
5219201F	Dialight	Green	2.1V	—	60mcd	565nm	—	—	—	Active
4300H5LC	VCC	Green	1.8V	2mA	2.3mcd	565nm	50°	8.89mm	Diffused	Not For New Designs

Engineering Selection Recommendations

For Direct Replacement (Active Status, Clear Lens):

LTL2R3KGKNN and LTL2P3KGKNN (Lite-On) are the primary recommended substitutes. Both are active products with RoHS3 compliance, clear colorless lenses, and forward voltages (2.1V) compatible with standard indicator circuits. LTL2R3KGKNN provides 680mcd brightness with 30° viewing angle, suitable for applications requiring moderate visibility. LTL2P3KGKNN offers higher brightness (980mcd) for applications requiring greater luminous intensity.

SSL-LX5093SGC/B (Lumex) is an active alternative with 300mcd brightness, 2.2V forward voltage, and RoHS3 compliance. This part bridges the brightness gap between lower and higher output options.

For Lower Brightness Applications:

SSL-LX5093GC (Lumex) provides 50mcd output with 2.2V forward voltage and active product status. This part is suitable for applications where the original 66mcd brightness exceeds requirements.

LTL-4238 (Lite-On) offers 90mcd brightness with 2.1V forward voltage and active status, providing a close brightness match to the original part.

For Specialized Applications:

SLA-560MT3F (Rohm Semiconductor) is classified as Not For New Designs but remains available. It provides 100mcd brightness, 2.3V forward voltage, and a wide 40° viewing angle. This part is suitable only for legacy system maintenance where viewing angle requirements exceed standard specifications.

Parts to Avoid for New Designs:

4300H5LC (VCC) has significantly lower brightness (2.3mcd), diffused lens transparency, and reduced forward voltage (1.8V), making it unsuitable as a direct replacement. MV3450 (onsemi) is obsolete and should not be used for new designs.

Frequently Asked Questions (FAQ)

Q: Can LTL2R3KGKNN directly replace TLHP5100 in existing circuits?

A: Yes. LTL2R3KGKNN operates at 2.1V forward voltage compared to TLHP5100's 2.4V, representing a 0.3V reduction. This voltage difference is within acceptable tolerance for standard indicator circuits. Both parts are rated for 20mA test current and feature clear lenses with compatible T-1 3/4 form factors. Verify circuit design accommodates the lower forward voltage before implementation.

Q: What is the brightness difference between TLHP5100 and available substitutes?

A: TLHP5100 provides 66mcd brightness. Available substitutes range from 50mcd (SSL-LX5093GC) to 980mcd (LTL2P3KGKNN). For applications requiring similar brightness, LTL-4238 (90mcd) and SLA-560MT3F (100mcd) are closest matches. Higher brightness parts (LTL2R3KGKNN at 680mcd, SSL-LX5093SGC/B at 300mcd) are suitable for applications requiring enhanced visibility.

Q: Are all substitute parts RoHS3 compliant?

A: All recommended active substitutes (LTL2R3KGKNN, LTL2P3KGKNN, LTL-4238, SSL-LX5093GC, SSL-LX5093SGC/B) are RoHS3 compliant. Parts classified as Not For New Designs (SLA-560MT3F, 4300H5LC) are also RoHS3 compliant but should not be used in new designs.

Q: What is the viewing angle difference between TLHP5100 and substitutes?

A: TLHP5100 has an 18° viewing angle. Substitute parts range from 16° (LTL-4238) to 60° (4300H5LC). For narrow-angle applications, LTL-4238 (16°) and LTL2P3KGKNN (22°) maintain similar directional characteristics. For wide-angle applications, SLA-560MT3F (40°) and 4300H5LC (60°) provide broader light distribution.

Q: Can I use parts with diffused lenses as substitutes?

A: No. TLHP5100 features a clear, colorless lens. Diffused lens parts (4300H5LC, SSL-LX5093GW) alter light transmission characteristics and are not suitable direct replacements. Use only clear lens substitutes unless application requirements specifically allow diffused optics.

Q: What is the height difference between TLHP5100 and substitutes?

A: TLHP5100 has a maximum height of 13.20mm. Most active substitutes are significantly more compact: LTL-4238 (8.60mm), LTL2P3KGKNN (8.70mm), LTL2R3KGKNN (8.70mm), SSL-LX5093GC (8.60mm), and SSL-LX5093SGC/B (8.60mm). Verify PCB layout accommodates the reduced height before implementation.

Q: Which substitute offers the closest electrical match to TLHP5100?

A: SLA-560MT3F provides the closest forward voltage match at 2.3V (compared to TLHP5100's 2.4V). However, this part is classified as Not For New Designs. For active products, LTL2R3KGKNN and LTL2P3KGKNN at 2.1V represent the best electrical compatibility with standard indicator circuits.

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