TLCS5100 Equivalent & Substitute Parts

Part Overview

The TLCS5100 is a red LED indicator from Vishay Semiconductor Opto Division, designed for through-hole mounting applications. This T-1 3/4 radial LED operates at 2.1V forward voltage with a dominant wavelength of 630nm and delivers 7500 millicandela at 50mA test current. The part is Active status and ROHS3 compliant, making it suitable for modern electronic assemblies requiring regulatory compliance.

Substitute parts are identified to address inventory availability, performance optimization, or design flexibility while maintaining functional compatibility within the T-1 3/4 through-hole LED category.

Key Parameters

Parameter	TLCS5100 Value
Manufacturer	Vishay Semiconductor Opto Division
Color	Red
Wavelength - Dominant	630nm
Wavelength - Peak	641nm
Voltage - Forward (Vf) Typical	2.1V
Current - Test	50mA
Millicandela Rating	7500mcd
Viewing Angle	18°
Lens Style	Round with Domed Top
Lens Size	5.80mm Dia
Mounting Type	Through Hole
Package / Case	Radial
Supplier Device Package	T-1 3/4
Height (Max)	13.20mm
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts are grouped based on strict electrical and mechanical compatibility criteria. All substitute parts maintain the following core requirements:

Red color LED indication
T-1 3/4 through-hole radial package
Round domed lens configuration
ROHS3 compliance and Active product status
Radial package / case type
Moisture Sensitivity Level 1 (Unlimited)

Substitution logic is determined by the following parameters:

Forward voltage (Vf): TLCS5100 operates at 2.1V; Broadcom HLMP-EG series parts operate at 1.9V or 2.1V depending on variant
Wavelength compatibility: All substitutes maintain red spectrum (626nm dominant wavelength)
Millicandela rating: Varies by part variant; selection depends on brightness requirements
Viewing angle: Ranges from 8° to 30° depending on application requirements
Height: Varies from 8.91mm to 12.77mm; critical for PCB layout constraints
Test current: Broadcom parts tested at 20mA; TLCS5100 tested at 50mA

Parameter Comparison

Parameter	TLCS5100	HLMP-EG08-WZ000	HLMP-EG08-X1000	HLMP-EG08-Y2000	HLMP-EG08-YZ000	HLMP-EG10-WZ000	HLMP-EG1G-Y10DD	HLMP-EG24-PS000	HLMP-EG26-PS000	HLMP-EG2G-XZ0DD	HLMP-EG30-MQ000
Manufacturer	Vishay	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom
Color	Red	Red	Red	Red	Red	Red	Red	Red	Red	Red	Red
Wavelength - Dominant	630nm	626nm	626nm	626nm	626nm	626nm	626nm	626nm	626nm	626nm	626nm
Wavelength - Peak	641nm	635nm	635nm	635nm	635nm	635nm	634nm	635nm	635nm	634nm	635nm
Voltage - Forward (Vf) Typical	2.1V	1.9V	1.9V	1.9V	1.9V	1.9V	2.1V	1.9V	1.9V	2.1V	1.9V
Current - Test	50mA	20mA	20mA	20mA	20mA	20mA	20mA	20mA	20mA	20mA	20mA
Millicandela Rating	7500mcd	10750mcd	14100mcd	18150mcd	12650mcd	10750mcd	15150mcd	1690mcd	1690mcd	11600mcd	1010mcd
Viewing Angle	18°	8°	8°	8°	8°	8°	15°	23°	23°	23°	30°
Lens Style	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top	Round with Domed Top
Lens Size	5.80mm Dia	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4	5mm, T-1 3/4
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial	Radial
Supplier Device Package	T-1 3/4	T-1 3/4	T-1 3/4	T-1 3/4	T-1 3/4	T-1 3/4	T-1 3/4	T-1 3/4	T-1 3/4	T-1 3/4 (5mm)	T-1 3/4
Height (Max)	13.20mm	8.91mm	8.91mm	8.91mm	8.91mm	12.62mm	8.91mm	8.91mm	12.77mm	8.91mm	8.91mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the TLCS5100. Selection among Broadcom HLMP-EG series variants depends on specific application requirements:

For applications requiring forward voltage matching at 2.1V, select HLMP-EG1G-Y10DD or HLMP-EG2G-XZ0DD. These parts operate at identical forward voltage to the TLCS5100 and are suitable for direct circuit substitution without power supply redesign.

For applications where lower forward voltage (1.9V) is acceptable, the HLMP-EG08 series (WZ000, X1000, Y2000, YZ000 variants) and HLMP-EG10-WZ000 offer higher millicandela ratings and lower power consumption at reduced test current (20mA versus 50mA).

Height constraints determine selection between standard 8.91mm variants and taller options: HLMP-EG10-WZ000 (12.62mm) and HLMP-EG26-PS000 (12.77mm) approach the TLCS5100 height of 13.20mm.

Viewing angle selection depends on optical coverage requirements: narrow angle (8°) for focused indication, medium angle (15-18°) for standard applications, and wide angle (23-30°) for distributed visibility.

Frequently Asked Questions (FAQ)

Q: Can HLMP-EG08 series parts with 1.9V forward voltage directly replace the TLCS5100 in existing circuits?

A: Direct replacement requires circuit evaluation. The TLCS5100 operates at 2.1V forward voltage while HLMP-EG08 variants operate at 1.9V. This 0.2V difference affects current limiting resistor calculations. Circuits designed for 2.1V operation will deliver higher current through 1.9V parts at identical resistor values. Recalculate series resistor values based on actual forward voltage and desired operating current.

Q: What is the significance of the different millicandela ratings among substitute parts?

A: Millicandela rating indicates LED brightness at specified test current. The TLCS5100 delivers 7500mcd at 50mA. Broadcom HLMP-EG series parts tested at 20mA show varying brightness: HLMP-EG08-Y2000 (18150mcd), HLMP-EG1G-Y10DD (15150mcd), and HLMP-EG2G-XZ0DD (11600mcd) provide higher brightness than the original part. Lower brightness options include HLMP-EG24-PS000 and HLMP-EG26-PS000 (1690mcd each) and HLMP-EG30-MQ000 (1010mcd). Select based on application visibility requirements.

Q: How do viewing angle differences affect substitution compatibility?

A: Viewing angle determines the cone of light distribution. The TLCS5100 provides 18° viewing angle. Narrower angle variants (8°) concentrate light in a focused beam suitable for direct observation. Wider angle variants (23-30°) distribute light across a broader area for peripheral visibility. PCB layout and indicator placement determine whether angle substitution is acceptable. Narrow angle parts may require repositioning for equivalent visibility.

Q: Are there packaging differences between substitute parts?

A: Most substitute parts are supplied in Bulk packaging. HLMP-EG1G-Y10DD and HLMP-EG2G-XZ0DD are supplied in Cut Tape (CT) packaging. Both packaging formats are compatible with standard assembly processes. Verify packaging compatibility with procurement and assembly workflows.

Q: What height constraints apply to PCB layout when selecting substitute parts?

A: The TLCS5100 maximum height is 13.20mm. Most Broadcom HLMP-EG variants measure 8.91mm maximum height, providing 4.29mm clearance reduction. HLMP-EG10-WZ000 (12.62mm) and HLMP-EG26-PS000 (12.77mm) maintain heights closer to the original specification. Verify PCB clearance requirements and component placement constraints before selecting shorter variants.

Q: Do all substitute parts meet the same compliance standards as the TLCS5100?

A: All listed substitute parts are ROHS3 compliant and maintain Active product status, matching the TLCS5100 regulatory profile. Moisture Sensitivity Level 1 (Unlimited) is consistent across all parts. REACH Unaffected status and EAR99 ECCN classification apply uniformly. No additional compliance evaluation is required for regulatory substitution.

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