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Vishay Semiconductor Opto Division TLHE4600
- Part No.:
- TLHE4600
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLHE4600.pdf
- Description:
- LED YELLOW DIFFUSED T-1 T/H
- Quantity:
- Payment:
- Shipping:
Inventory:1,101
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Product details
Overview
TLHE4600 from Vishay Semiconductors is a high-intensity yellow AlInGaP LED in a 3 mm tinted diffused T-1 package, delivering 10–26 mcd luminous intensity at 10 mA, with dominant wavelength 581–594 nm and ±60° viewing angle-designed for status indication and legend lighting in industrial control panels.
For engineers reviewing the TLHE4600 datasheet, TLHE4600 pinout, TLHE4600 application, or TLHE4600 equivalent, key selection criteria include luminous intensity binning (R–Z groups), wavelength categorization (Groups 1–6), forward voltage range (1.9–2.6 V at 20 mA), thermal resistance (400 K/W), and DC/high-peak-current capability up to 30 mA continuous.
Technical Context
The TLHE4600 uses AlInGaP-on-GaAs epitaxial technology to achieve high luminous efficacy in the yellow spectrum, with peak emission near 590 nm. Its diffused lens and ±60° half-intensity angle enable uniform illumination across wide viewing zones without secondary optics.
Rated for operation from –40 °C to +100 °C ambient, the device supports DC bias and pulsed drive up to 0.1 A surge current (10 μs), with junction-to-ambient thermal resistance of 400 K/W ensuring stable output under constrained PCB thermal conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 10–26 mcd at 10 mA - defines minimum/typical brightness for visibility in ambient light up to 500 lux |
| Dominant wavelength | 581–594 nm - ensures consistent yellow chromaticity across production lots per color bin Group 1–6 |
| Forward voltage | 1.9–2.6 V at 20 mA - determines series resistor value for constant-current drive in 3.3 V or 5 V systems |
| Viewing angle | ±60° half-intensity - provides 120° total beam spread ideal for panel-mounted indicators requiring wide-angle visibility |
| Junction temperature limit | 100 °C - sets maximum allowable power dissipation (80 mW) and derating threshold above 60 °C ambient |
| Reverse voltage rating | 5 V - defines maximum allowable reverse bias during multiplexed or AC-coupled driving schemes |
| Junction capacitance | 15 pF at 0 V, 1 MHz - impacts high-frequency PWM dimming response and EMI filtering design |
Pinout & Package
Standard 2-pin axial-leaded Ø3 mm (T-1) plastic package with cathode-indicating flat side and tapered anode lead. Package dimensions: body Ø3.2 ±0.15 mm, length 5.8 ±0.3 mm, lead spacing 2.54 mm nominal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (longer lead) | Positive terminal | Connected to current source or MCU GPIO via current-limiting resistor; polarity must be observed to avoid reverse breakdown |
| Cathode (shorter lead, flat side) | Negative terminal | Typically tied to ground or low-side switch; flat edge on package body identifies this terminal for automated assembly verification |
Key Features
| Feature | Design Value |
|---|---|
| AlInGaP-on-GaAs die technology | Enables high-efficiency yellow emission without phosphor conversion, supporting stable output over 50,000-hour lifetime at rated current |
| Luminous intensity binning (R–Z) | Ensures consistent brightness matching across multiple LEDs in multi-segment displays or status arrays |
| Wavelength binning (Groups 1–6) | Maintains visual color uniformity in multi-LED installations where chromatic shift would impair operator recognition |
| Diffused tinted lens | Eliminates hot spots and glare while preserving >90% of total luminous flux-critical for legibility in direct-view applications |
| DC and high-peak-current capability | Supports both steady-state indication (≤30 mA) and short-duration strobing (0.1 A, 10 μs) for attention-grabbing alerts |
Applications
| Status Indicator | Legend Illumination |
|---|---|
Use Scenario: Front-panel LED on programmable logic controller (PLC) housing indicating RUN/STOP state under factory lighting. IC Role / Device Role / Timing Role: Visual status emitter providing unambiguous binary feedback without auxiliary optics or drivers. Use Value: ±60° viewing angle and 26 mcd typical intensity ensure readability from 0.5–2 m distance across varied operator positions. | Use Scenario: Backlighting engraved labels on medical device control bezels requiring non-distracting, localized yellow illumination. IC Role / Device Role / Timing Role: Low-power, surface-mount-compatible indicator integrated into membrane switch overlays. Use Value: Diffused lens and 588 nm dominant wavelength deliver high CRI yellow light that enhances label contrast without spectral bleed into adjacent symbols. |
| Readout Light | Maintenance Light |
Use Scenario: Illuminating analog meter scales in industrial power distribution cabinets during night-shift maintenance. IC Role / Device Role / Timing Role: Directional yet wide-angle light source mounted adjacent to scale markings to minimize shadowing. Use Value: 400 K/W thermal resistance allows continuous operation at 20 mA without heatsinking, sustaining brightness over 8-hour shifts. | Use Scenario: Temporary task lighting inside sealed HVAC control enclosures during field service. IC Role / Device Role / Timing Role: Low-voltage (1.9–2.6 V), low-heat LED powered from onboard 3.3 V rail for handheld diagnostic tools. Use Value: 100 °C max junction temperature rating enables reliable function in confined, poorly ventilated spaces up to 85 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar yellow LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay TLHR4600 | Red variant (625 nm dominant wavelength); identical package, pinout, and electrical ratings except VF (1.8–2.4 V) and IV (12–30 mcd) | Used where red status coding is required per IEC 60417; not interchangeable for yellow-specific safety or regulatory labeling | Select TLHR4600 only when red chromaticity is mandated; TLHE4600 remains sole option for yellow-coded status per UL 508/IEC 60204 |
| Kingbright AML-303YGD | Same 3 mm T-1 package but with water-clear lens (not tinted/diffused); higher IV (25–50 mcd) and narrower viewing angle (±30°) | Better suited for focused readout applications; unsuitable where diffuse, glare-free illumination is required for legend or status panels | Choose AML-303YGD only when directional brightness outweighs uniformity needs; TLHE4600 preferred for general-purpose panel indicators |
Compared with TLHR4600 and AML-303YGD, the TLHE4600 uniquely combines yellow chromaticity, diffused tinted lens, and ±60° viewing angle-making it the only qualified solution for applications demanding standardized yellow visual signaling with wide-angle legibility and glare control.
Availability
TLHE4600 is available at Aetrix Electronics and suitable for industrial control panels, medical device interfaces, and HVAC system status displays requiring stable component supply, consistent luminous intensity binning, and long-term manufacturing continuity.
Supply support for TLHE4600 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 Intertechnology is a global manufacturer of discrete semiconductors and passive components, headquartered in Malvern, PA, with design and fabrication facilities across Asia, Europe, and the Americas.
The TLHE4600 belongs to Vishay's standard 3 mm LED product line, engineered specifically for reliability-critical visual indication in industrial, transportation, and building automation systems where color accuracy, thermal stability, and mechanical robustness are mandatory.
FAQ
What is the maximum continuous forward current rating for TLHE4600?
The TLHE4600 has a maximum DC forward current rating of 30 mA at ambient temperatures ≤60 °C. Exceeding this value requires derating per the datasheet's forward current vs. ambient temperature curve. Operation above 30 mA-even briefly-risks accelerated lumen depreciation and junction overheating. Always verify thermal layout when operating TLHE4600 near its absolute maximum ratings.
Does TLHE4600 require external current limiting?
Yes, TLHE4600 requires an external current-limiting resistor or constant-current driver. Its forward voltage varies from 1.9 V to 2.6 V at 20 mA, and the device exhibits negative temperature coefficient behavior. Without regulation, variations in supply voltage or temperature can cause current runaway and premature failure. A properly calculated series resistor ensures stable 10–20 mA operation across TLHE4600's specified ambient range.
How is luminous intensity binned for TLHE4600, and why does it matter?
TLHE4600 is categorized into luminous intensity groups R through Z, each specifying a min/max mcd range (e.g., Group R = 10–20 mcd). Vishay ships only one intensity group per reel to guarantee uniform brightness across assemblies. This binning prevents visible mismatch in multi-LED arrays-critical for status panels where inconsistent intensity could mislead operators about system state.
Can TLHE4600 be used in outdoor applications?
TLHE4600 is rated for operation from –40 °C to +100 °C ambient, but its plastic package lacks IP-rated sealing or UV-stabilized encapsulation. It is suitable for indoor or sheltered outdoor enclosures (e.g., NEMA 4X-rated cabinets), but not for direct exposure to rain, dust, or solar UV. For outdoor-facing applications, consider conformal coating or secondary lens protection-and always validate performance under real environmental stress before deployment.
What is the significance of the "tinted diffused" package for TLHE4600?
The tinted diffused package of TLHE4600 serves two functions: the yellow tint filters out non-yellow wavelengths to enhance chromatic purity, while the diffused lens scatters light uniformly across ±60°, eliminating hotspots and enabling consistent brightness at off-axis viewing angles. This combination ensures high legibility in status and legend applications where operator position varies and glare must be minimized.
TLHE4600 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- -
- Package/Case:
- Radial
- Packaging:
- Bulk
- Product Status:
- Active
- Color:
- Yellow
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Diffused
- Millicandela Rating:
- 26mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 3mm, T-1
- Voltage - Forward (Vf) (Typ):
- 1.9V
- Current - Test:
- 20mA
- Viewing Angle:
- 120°
- Mounting Type:
- Through Hole
- Wavelength - Dominant:
- 588nm
- Wavelength - Peak:
- 590nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- T-1
- Size / Dimension:
- -
TLHE4600 FAQ
1.How can I place an order for TLHE4600 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLHE4600 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 TLHE4600 reliable?
The price and inventory of TLHE4600 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHE4600 is usually 5 days.
3.What payment methods are accepted for TLHE4600?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHE4600 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLHE4600?
TLHE4600 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLHE4600 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 TLHE4600?
For technical support, including TLHE4600 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHE4600 requirements.
6.How does Aetrix verify that TLHE4600 is sourced from the original manufacturer or authorized distributors?
All TLHE4600 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 TLHE4600 meets industry standards.
7.What is the process for return or replacement of TLHE4600?
All TLHE4600 units undergo pre-shipment inspection (PSI). If there is an issue with TLHE4600, 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 TLHE4600 part is unused and in its original packaging.
Return procedure for TLHE4600:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLHE4600 Tags
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LTST-C281KRKT
Lite-On Inc.
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150060GS75000
Würth Elektronik
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150060VS75000
Würth Elektronik
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150060AS75000
Würth Elektronik
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150060YS75000
Würth Elektronik
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150060SS75000
Würth Elektronik
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150060BS75000
Würth Elektronik
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151031VS06000
Würth Elektronik
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151033RS03000
Würth Elektronik
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150080BS75000
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150080GS75000
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150141GS73100
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