TLHF5400 Orange LED T-1 3/4 Through Hole - Equivalent & Substitute Parts

Part Overview

The TLHF5400 is an orange diffused LED manufactured by Vishay Semiconductor Opto Division, designed for indication applications in through-hole mounting configurations. This part operates at 2V forward voltage with a 160mcd brightness rating and 605nm dominant wavelength. The product is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain compatibility with the original electrical specifications, mechanical form factor, and mounting requirements while meeting current RoHS3 and REACH compliance standards.

Key Parameters

Parameter	TLHF5400 Specification
Manufacturer	Vishay Semiconductor Opto Division
Color	Orange
Wavelength - Dominant	605nm
Wavelength - Peak	610nm
Voltage - Forward (Vf) Typical	2V
Current - Test	10mA
Millicandela Rating	160mcd
Lens Transparency	Diffused
Lens Style	Round with Domed Top
Lens Size	5mm, T-1 3/4
Viewing Angle	60°
Mounting Type	Through Hole
Package / Case	Radial
Height (Max)	12.80mm
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the TLHF5400 requires evaluation based on the following critical parameters:

Electrical Compatibility: Forward voltage (Vf) must remain at 2V to ensure direct circuit compatibility without redesign. Test current of 10mA establishes the operational baseline.

Optical Characteristics: Orange color specification (605nm dominant wavelength) is the primary functional requirement. Diffused lens transparency and 60° viewing angle define the light distribution pattern. Millicandela rating of 160mcd establishes brightness performance.

Mechanical Form Factor: T-1 3/4 (5mm) lens size and through-hole radial mounting are mandatory for PCB compatibility. Maximum height of 12.80mm constrains board layout integration.

Compliance & Status: Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1) are required for production continuity.

The substitute parts provided in this reference are yellow-colored LEDs (589nm to 588nm wavelength range) with varying forward voltages (2V to 12V) and different brightness ratings. These parts do not meet the orange color specification (605nm) of the original TLHF5400 and represent functional alternatives only when color substitution is acceptable in the application design.

Parameter Comparison

Parameter	TLHF5400	1383UYD/S530-A3	5219673F	HLMP-3401	HLMP-3401-E0002	HLMP-3650	HLMP-3651	HLMP-4719
Manufacturer	Vishay	Everlight	Dialight	Broadcom	Broadcom	Broadcom	Broadcom	Broadcom
Color	Orange	Yellow	Yellow	Yellow	Yellow	Yellow	Yellow	Yellow
Wavelength - Dominant (nm)	605	589	588	585	585	585	585	585
Voltage - Forward (Vf) Typical	2V	2V	2.1V	2V	2V	5V	12V	1.8V
Current - Test (mA)	10	20	20	10	10	10	13	2
Millicandela Rating (mcd)	160	800	12.6	5.7	5.7	2.2	2.2	2.1
Lens Transparency	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused	Diffused
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
Lens Size	5mm, T-1 3/4	5.00mm Dia	4.75mm 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
Viewing Angle	60°	25°	60°	60°	60°	60°	60°	50°
Mounting Type	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
Height (Max)	12.80mm	8.90mm	8.21mm	9.19mm	9.19mm	9.19mm	9.19mm	9.19mm
RoHS Status	ROHS3 Compliant	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Direct Electrical Substitutes (2V Forward Voltage):

HLMP-3401, HLMP-3401-E0002, and 1383UYD/S530-A3 maintain the 2V forward voltage specification of the TLHF5400, enabling direct circuit integration without power supply redesign. HLMP-3401-E0002 offers the highest inventory availability (35,845 pcs) in cut tape packaging, supporting automated assembly processes. All three options carry ROHS3 compliance and active product status, ensuring long-term supply continuity.

Voltage-Variant Substitutes:

HLMP-3650 (5V) and HLMP-3651 (12V) require circuit redesign to accommodate higher forward voltages. HLMP-4719 (1.8V) operates below the original specification and may require current limiting adjustments. These options are suitable only when application design permits voltage modification.

Color Consideration:

All substitute parts listed are yellow-colored LEDs (585nm to 589nm wavelength) rather than orange (605nm). Color substitution is acceptable only when the application does not require specific orange indication or when design review confirms functional equivalence for the intended use case.

Compliance & Availability:

All recommended substitutes maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Broadcom HLMP series parts demonstrate superior inventory levels and active production status, supporting both immediate procurement and long-term supply security.

Frequently Asked Questions (FAQ)

Q: Can HLMP-3401 directly replace TLHF5400 without circuit modification?

A: HLMP-3401 maintains identical 2V forward voltage and 10mA test current specifications, enabling direct substitution in existing circuits. Mechanical form factor (T-1 3/4, 5mm through-hole radial) is compatible. The primary difference is color (yellow vs. orange), which requires application-level evaluation.

Q: What is the impact of the 160mcd to 5.7mcd brightness difference?

A: The TLHF5400 operates at significantly higher brightness. HLMP-3401 and similar Broadcom substitutes provide lower luminous intensity. Application circuits may require brightness adjustment through current limiting resistor modification if visual indication intensity is critical.

Q: Why are substitute parts yellow instead of orange?

A: The substitute parts provided represent the available active alternatives in the through-hole LED market. Orange LEDs with matching electrical specifications and form factors are not currently listed in active inventory. Orange-specific substitutes may require sourcing through alternative channels or design modification to accept yellow indication.

Q: Is HLMP-3401-E0002 suitable for automated assembly?

A: Yes. HLMP-3401-E0002 is supplied in cut tape (CT) packaging with 35,845 pcs inventory, supporting high-volume automated pick-and-place assembly. Standard HLMP-3401 is available in bulk packaging for manual assembly or lower-volume applications.

Q: What is the difference between HLMP-3401 and HLMP-3401-E0002?

A: Both parts are electrically and mechanically identical. The primary difference is packaging: HLMP-3401 is supplied in bulk, while HLMP-3401-E0002 is supplied in cut tape format. Selection depends on assembly process requirements and volume.

Q: Can HLMP-3650 or HLMP-3651 be used as drop-in replacements?

A: No. HLMP-3650 (5V) and HLMP-3651 (12V) require circuit redesign to accommodate higher forward voltages. Direct substitution would result in incorrect LED operation or circuit failure. These options are suitable only when power supply modification is feasible.

Q: What compliance certifications apply to all substitute parts?

A: All recommended substitutes carry ROHS3 compliance and maintain unlimited moisture sensitivity level (MSL 1). REACH status is unaffected for all parts. Compliance documentation is available from respective manufacturers.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message