TLHY6200 Yellow LED T-1 3/4 Through Hole Equivalent & Substitute Parts

Part Overview

The TLHY6200 is a yellow 588nm LED indication component manufactured by Vishay Semiconductor Opto Division in a T-1 3/4 through-hole radial package. This discrete LED operates at 2.4V forward voltage with a 50mcd brightness rating and 28° viewing angle. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and system maintenance.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLHY6200
Manufacturer	Vishay Semiconductor Opto Division
Product Status	Obsolete
Color	Yellow
Lens Transparency	Clear
Lens Size	5mm, T-1 3/4
Voltage - Forward (Vf) Typical	2.4V
Current - Test	10mA
Millicandela Rating	50mcd
Wavelength - Dominant	588nm
Wavelength - Peak	585nm
Viewing Angle	28°
Mounting Type	Through Hole
Package / Case	Radial
Height (Max)	9.00mm
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the TLHY6200 is determined by the following critical parameters:

Primary Compatibility Criteria:

Color: Yellow (588nm dominant wavelength range acceptable)
Lens Transparency: Clear
Lens Size: 5mm, T-1 3/4
Mounting Type: Through Hole
Package / Case: Radial
Forward Voltage (Vf): 2.0V to 2.4V range
Current - Test: 10mA to 20mA range
RoHS3 Compliance: Required

Secondary Consideration:

Millicandela Rating: 25mcd to 300mcd (brightness variation acceptable depending on circuit design)
Viewing Angle: 15° to 50° (application-dependent)
Height: 6.35mm to 9.00mm (PCB clearance dependent)

Substitute parts are grouped into two categories:

Category A - Direct Yellow Clear T-1 3/4 Substitutes (Active Status): HLMP-C315, HLMP-C323, LTL-307YE, LTL-4254, SLR-56YC3F, SLR-56YCT32, SSL-LX5093YT

Category B - Alternative Color (Orange) Clear T-1 3/4 Substitutes (Active Status): SLR-56DC3F, SLR-56DCT32

Category B parts differ in color (orange 605nm vs. yellow 588nm) and are suitable only when color substitution is acceptable in the application.

Parameter Comparison

Part Number	Manufacturer	Color	Lens Transparency	Vf (Typ)	Current - Test	mcd Rating	Wavelength - Dominant	Viewing Angle	Height (Max)	Product Status	RoHS3
TLHY6200	Vishay	Yellow	Clear	2.4V	10mA	50mcd	588nm	28°	9.00mm	Obsolete	Yes
HLMP-3451	Broadcom	Yellow	Diffused	2.0V	10mA	3.6mcd	585nm	50°	6.35mm	Active	Yes
HLMP-C315	Broadcom	Yellow	Clear	2.1V	20mA	300mcd	589nm	15°	8.91mm	Active	Yes
HLMP-C323	Broadcom	Yellow	Clear	2.1V	20mA	170mcd	589nm	25°	8.91mm	Active	Yes
LTL-307YE	Lite-On	Yellow	Clear	2.1V	20mA	40mcd	588nm	40°	8.60mm	Active	Yes
LTL-4254	Lite-On	Yellow	Clear	2.1V	10mA	90mcd	588nm	16°	8.60mm	Active	Yes
SLR-56DC3F	Rohm	Orange	Clear	2.0V	10mA	25mcd	605nm	40°	8.90mm	Active	Yes
SLR-56DCT32	Rohm	Orange	Clear	2.0V	10mA	25mcd	605nm	40°	8.90mm	Active	Yes
SLR-56YC3F	Rohm	Yellow	Clear	2.1V	10mA	25mcd	587nm	40°	8.90mm	Active	Yes
SLR-56YCT32	Rohm	Yellow	Clear	2.1V	10mA	25mcd	587nm	40°	8.90mm	Active	Yes
SSL-LX5093YT	Lumex	Yellow	Clear	2.1V	20mA	40mcd	—	30°	8.60mm	Active	Yes

Engineering Selection Recommendations

All substitute parts listed are ROHS3 compliant and carry active product status except the original TLHY6200, which is obsolete. Selection should be based on the following criteria:

For Direct Yellow Clear Substitution (Preferred):

LTL-4254 (Lite-On): Matches 10mA test current and 588nm wavelength; 90mcd brightness provides adequate margin above 50mcd requirement; 16° viewing angle suitable for focused indication applications
SLR-56YC3F or SLR-56YCT32 (Rohm): Matches 10mA test current and 587nm wavelength; 25mcd brightness lower than original but acceptable for general indication; 40° viewing angle provides wider visibility
HLMP-C323 (Broadcom): Closest wavelength match at 589nm; 170mcd brightness significantly higher; requires 20mA test current; 25° viewing angle comparable to original

For Brightness-Critical Applications:

HLMP-C315 (Broadcom): Highest brightness at 300mcd; 589nm wavelength; requires 20mA test current and narrower 15° viewing angle

For Lower Brightness Applications:

LTL-307YE (Lite-On): 40mcd brightness; 588nm wavelength; 20mA test current; 40° wide viewing angle

For Orange Color Substitution (When Acceptable):

SLR-56DC3F or SLR-56DCT32 (Rohm): 605nm orange wavelength; 25mcd brightness; 10mA test current; 40° viewing angle; identical electrical characteristics to yellow variants

All substitute parts maintain through-hole radial mounting, T-1 3/4 package form factor, and MSL 1 moisture sensitivity rating.

Frequently Asked Questions (FAQ)

Q: Can HLMP-3451 substitute for TLHY6200? A: HLMP-3451 has diffused lens transparency rather than clear, and 3.6mcd brightness is significantly lower than the 50mcd requirement. It is not recommended as a direct substitute unless diffused appearance and reduced brightness are acceptable.

Q: What is the difference between SLR-56YC3F and SLR-56YCT32? A: Both parts are electrically and optically identical. SLR-56YC3F is supplied in bulk packaging, while SLR-56YCT32 is supplied in tape and box (TB) format. Selection depends on procurement and assembly requirements.

Q: Can I use an orange LED (SLR-56DC3F) instead of yellow? A: Orange substitution is possible only if the application does not require yellow color indication. The 605nm wavelength is visually distinct from 588nm yellow. Verify color requirements in the circuit design before substitution.

Q: Why do some substitutes require 20mA test current instead of 10mA? A: Test current specification indicates the current level at which brightness (mcd) is measured. Parts rated at 20mA test current will operate at lower brightness when driven at 10mA. Circuit design must account for this difference in brightness output.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All active substitute parts listed carry ROHS3 Compliant status. The original TLHY6200 is also ROHS3 compliant.

Q: What is the viewing angle significance? A: Viewing angle determines the cone of light visibility. Narrower angles (15°–16°) concentrate brightness in a focused direction. Wider angles (40°–50°) distribute brightness across a broader area. Select based on PCB layout and visibility requirements.

Q: Can I use HLMP-C315 as a direct replacement? A: HLMP-C315 is electrically compatible but has significantly higher brightness (300mcd vs. 50mcd) and narrower viewing angle (15° vs. 28°). It requires 20mA test current. Use only if circuit design accommodates higher brightness and narrower viewing angle.

Q: What does "Wavelength - Dominant" vs. "Wavelength - Peak" mean? A: Dominant wavelength is the perceived color wavelength. Peak wavelength is the actual spectral peak of the LED emission. Both should fall within the yellow range (580–595nm) for color consistency.

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