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Vishay Semiconductor Opto Division TLHF4900
- Part No.:
- TLHF4900
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLHF4900.pdf
- Description:
- LED ORANGE CLEAR T-1 T/H
- Quantity:
- Payment:
- Shipping:
Inventory:636
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Product details
Overview
TLHF4900 from Vishay Semiconductors is a high-intensity soft orange AlInGaP LED in a standard Ø 3 mm clear T-1 package, delivering 63–300 mcd luminous intensity at 10 mA, with dominant wavelength 598–611 nm and ±16° viewing angle. It serves as a status or indicator light in industrial control panels requiring high brightness and color consistency.
For engineers reviewing the TLHF4900 datasheet, TLHF4900 pinout, TLHF4900 application, or TLHF4900 equivalent, key selection criteria include luminous intensity binning (V–EE groups), forward voltage range (1.9–2.6 V at 20 mA), thermal resistance (400 K/W), and suitability for DC or pulsed operation up to 30 mA continuous current.
Technical Context
The TLHF4900 uses AlInGaP-on-GaAs epitaxial technology to achieve high radiance in the soft orange spectrum. Its narrow ±16° half-intensity angle and tight luminous intensity binning (e.g., group V: 63–125 mcd) enable uniform visual appearance across multi-LED arrays.
Designed for ambient temperatures from –40 °C to +100 °C, it supports stable operation under industrial conditions. Junction-to-ambient thermal resistance is 400 K/W, limiting power dissipation to 80 mW at Tamb ≤ 60 °C, with reverse voltage rating of 5 V and surge current tolerance of 100 mA for tp ≤ 10 μs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 63–300 mcd at 10 mA - defines visible output level for indicator readability at typical mounting distances |
| Dominant wavelength | 598–611 nm - specifies soft orange chromaticity compliant with IEC 62471 photobiological safety grouping |
| Viewing angle | ±16° - enables focused beam for discrete status indication without optical diffusers |
| Forward voltage | 1.9–2.6 V at 20 mA - determines series resistor value and driver voltage headroom requirements |
| Junction temperature limit | 100 °C - sets maximum allowable thermal rise for reliability in sealed enclosures |
| Thermal resistance RthJA | 400 K/W - quantifies self-heating under 30 mA DC drive; requires PCB copper area or airflow for sustained operation |
| Reverse voltage rating | 5 V - defines maximum allowable reverse bias during multiplexed or AC-coupled driving |
Pinout & Package
Package: Standard Ø 3 mm (T-1) clear plastic package with hemispherical lens (R1.4 sphere), lead spacing 2.54 mm, body height 4.4 ± 0.3 mm, and cathode indicated by flat side on housing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (longer lead) | Positive terminal | Connected to current-limiting resistor or constant-current driver output; polarity must be observed to avoid damage |
| Cathode (shorter lead / flat side) | Negative terminal | Typically tied to ground or low-side switch; flat housing edge provides mechanical orientation reference |
Key Features
| Feature | Design Value |
|---|---|
| AlInGaP-on-GaAs die technology | Delivers high radiant efficiency and stable soft orange emission without phosphor conversion |
| Luminous intensity binning | Eight standardized groups (V–EE) ensure consistent brightness across production batches for panel uniformity |
| Color wavelength binning | Six dominant wavelength groups (1–6) guarantee chromatic consistency within ±3 nm tolerance |
| Small mechanical tolerances | ±0.15 mm diameter and ±0.3 mm height control enable reliable automated placement and socket fit |
| DC and high peak current capability | Rated for 30 mA continuous and 100 mA surge (10 μs), supporting multiplexed or strobed operation |
Applications
| Status Indicator | Off/On Indicator |
|---|---|
Use Scenario: Visual confirmation of system power state or fault condition on industrial HMI panels. IC Role / Device Role / Timing Role: Discrete light-emitting component driven directly by microcontroller GPIO or dedicated LED driver. Use Value: High 300 mcd typ. intensity ensures visibility under ambient lighting; ±16° beam prevents washout in adjacent indicators. | Use Scenario: Binary state feedback on medical device front panels where tactile switches lack integrated illumination. IC Role / Device Role / Timing Role: Passive optoelectronic indicator with no timing or logic function-requires external current control. Use Value: Tight 598–611 nm dominant wavelength ensures consistent soft orange hue across units, critical for regulatory labeling compliance. |
| Readout Light | Legend Light |
Use Scenario: Backlighting of engraved or printed legends on membrane keypads in factory automation terminals. IC Role / Device Role / Timing Role: Edge-lit source positioned beneath translucent legend areas; operates in steady-state DC mode. Use Value: 400 K/W thermal resistance allows safe 20 mA operation on FR-4 without heatsinking; clear lens maximizes light coupling into overlay. | Use Scenario: Illumination of molded symbols (e.g., "RUN", "ALARM") on DIN-rail mounted PLC modules. IC Role / Device Role / Timing Role: Through-hole mounted discrete emitter aligned to legend aperture; no signal processing involved. Use Value: Standard T-1 package fits legacy 3.2 mm drill holes; luminous intensity binning (e.g., group W: 100–200 mcd) enables batch-matched brightness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar soft orange LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kingbright APL3015SYC | Surface-mount 3015 package (0.3 × 0.15 inch), 590–610 nm λd, 110–220 mcd at 20 mA, RthJA ≈ 350 K/W | Requires rework of PCB layout; better thermal performance but lower max intensity than TLHF4900's 300 mcd typ. | Select for space-constrained designs where SMT assembly is preferred and intensity >220 mcd is not required. |
| Vishay TLHR4900 | Same package and binning structure, but red (620–635 nm); identical IV, VF, and ϕ specs; shares same absolute max ratings | Used where color coding mandates red instead of soft orange; otherwise drop-in compatible in footprint and drive circuitry | Select when red chromaticity is needed for differentiation in multi-color indicator arrays using same board design. |
Compared with Kingbright APL3015SYC and Vishay TLHR4900, the TLHF4900 offers the highest luminous intensity (300 mcd typ.) in a through-hole T-1 package, making it optimal for legacy or high-reliability indicator applications where manual inspection or serviceability matters.
Availability
TLHF4900 is available at Aetrix Electronics and suitable for industrial HMIs, medical device indicators, factory automation readouts, and DIN-rail PLC legend lighting requiring stable component supply and long-term obsolescence management.
Supply support for TLHF4900 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay Semiconductors is a global manufacturer of discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power MOSFETs, and precision resistors.
The TLHF4900 belongs to Vishay's standard AlInGaP LED product line, engineered for high-brightness visual indication in harsh environments where color stability, intensity uniformity, and long operational life are critical.
FAQ
What is the typical forward voltage of TLHF4900 at its rated current?
The TLHF4900 has a typical forward voltage of 1.9 V at 20 mA, with a maximum of 2.6 V under the same test condition. This range directly impacts series resistor calculation for constant-voltage drive circuits and must be accounted for in thermal design, as higher VF increases power dissipation. The TLHF4900's VF behavior is documented in Figure 3 of its datasheet (Document Number: 83025).
How is luminous intensity binned for TLHF4900, and why does it matter?
The TLHF4900 is categorized into eight luminous intensity groups (V to EE), each specifying a min/max mcd range at 10 mA-for example, group V covers 63–125 mcd. This binning ensures visual uniformity across LEDs used in the same assembly, such as multi-segment status panels. Without binning, TLHF4900 units could vary widely in perceived brightness, compromising user interface consistency.
Can TLHF4900 be driven with pulsed current, and what are the limits?
Yes, TLHF4900 supports pulsed operation with a surge forward current of 100 mA for pulse widths ≤ 10 μs. For longer pulses, derating applies per Figure 5 in the datasheet. Duty cycle and peak current must be constrained to keep junction temperature below 100 °C. The TLHF4900's junction capacitance of 15 pF also affects high-frequency switching response in strobed applications.
What is the significance of the ±16° viewing angle for TLHF4900?
The ±16° angle of half intensity means TLHF4900 emits light in a narrow, focused beam-ideal for discrete status indication where light must be visible from a specific viewing direction without spilling into adjacent zones. This characteristic reduces the need for physical baffles or masks and improves contrast in bright ambient environments compared to wide-angle LEDs.
Does TLHF4900 require special handling during soldering?
Yes-TLHF4900 must be soldered at ≤ 260 °C for no more than 5 seconds, measured 2 mm from the package body. Exceeding this risks lens discoloration or internal bond wire damage. Preheating above 100 °C is not recommended. The TLHF4900's thermal resistance (400 K/W) also implies that prolonged reflow exposure degrades lumen maintenance over time.
TLHF4900 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- -
- Package/Case:
- Radial
- Packaging:
- Bulk
- Product Status:
- Active
- Color:
- Orange
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Clear
- Millicandela Rating:
- 300mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 3mm, T-1
- Voltage - Forward (Vf) (Typ):
- 1.9V
- Current - Test:
- 10mA
- Viewing Angle:
- 32°
- Mounting Type:
- Through Hole
- Wavelength - Dominant:
- 605nm
- Wavelength - Peak:
- 610nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- T-1
- Size / Dimension:
- -
TLHF4900 FAQ
1.How can I place an order for TLHF4900 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLHF4900 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLHF4900 reliable?
The price and inventory of TLHF4900 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHF4900 is usually 5 days.
3.What payment methods are accepted for TLHF4900?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHF4900 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLHF4900?
TLHF4900 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLHF4900 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLHF4900?
For technical support, including TLHF4900 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHF4900 requirements.
6.How does Aetrix verify that TLHF4900 is sourced from the original manufacturer or authorized distributors?
All TLHF4900 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLHF4900 meets industry standards.
7.What is the process for return or replacement of TLHF4900?
All TLHF4900 units undergo pre-shipment inspection (PSI). If there is an issue with TLHF4900, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLHF4900 part is unused and in its original packaging.
Return procedure for TLHF4900:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLHF4900 Tags
-
LTST-C281KRKT
Lite-On Inc.
-
150060GS75000
Würth Elektronik
-
150060VS75000
Würth Elektronik
-
150060AS75000
Würth Elektronik
-
150060YS75000
Würth Elektronik
-
150060SS75000
Würth Elektronik
-
150060BS75000
Würth Elektronik
-
151031VS06000
Würth Elektronik
-
151033RS03000
Würth Elektronik
-
150080BS75000
Würth Elektronik
-
150080GS75000
Würth Elektronik
-
150141GS73100
Würth Elektronik
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