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Vishay Semiconductor Opto Division TLHY6400
- Part No.:
- TLHY6400
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLHY6400.pdf
- Description:
- LED YELLOW DIFFUSED T-1 3/4 T/H
- Quantity:
- Payment:
- Shipping:
Inventory:1,349
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Product details
Overview
TLHY6400 from Vishay Semiconductors is a yellow high-efficiency LED in a 5 mm tinted diffused T-1¾ plastic package, with dominant wavelength 581–594 nm, luminous intensity 1.6–10 mcd at 10 mA, and forward voltage 2.4–3.0 V at 20 mA. It serves as an on/off indicator or status light in industrial control panels and instrumentation.
For engineers reviewing the TLHY6400 datasheet, TLHY6400 pinout, TLHY6400 application, or TLHY6400 equivalent, key selection criteria include viewing angle (±30°), luminous intensity binning, DC/high-peak-current capability, and compatibility with standard 5 mm through-hole mounting and automated tape-and-reel assembly.
Technical Context
The TLHY6400 uses GaAsP-on-GaP semiconductor technology to deliver stable yellow emission with tight dominant wavelength grouping (581–594 nm) and categorized luminous intensity for visual uniformity across batches. Its ±30° half-intensity viewing angle ensures wide-angle visibility without hotspots.
Rated for continuous DC operation up to 30 mA and surge currents up to 1 A (tp ≤ 10 μs), it maintains junction temperature ≤100 °C under ambient conditions from –40 to +100 °C, with thermal resistance of 350 K/W and reverse voltage rating of 6 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Color | Yellow - matches human-perceived warm indication for status signaling |
| Dominant wavelength | 581–594 nm - ensures consistent yellow hue across production lots |
| Luminous intensity | 1.6–10 mcd at 10 mA - supports low-power indicator use with visible output |
| Forward voltage | 2.4–3.0 V at 20 mA - compatible with standard 3.3 V or 5 V logic-level drive circuits |
| Viewing angle | ±30° - provides broad visibility without requiring precise panel alignment |
| Package | 5 mm T-1¾ tinted diffused - enables mechanical interchangeability with legacy indicators |
| Ambient temp range | –40 to +100 °C - suitable for industrial enclosures and outdoor-rated equipment |
Pinout & Package
The TLHY6400 is a two-terminal through-hole LED housed in a standard 5 mm (T-1¾) tinted diffused plastic package with cathode-indicating flat edge and internal anode/cathode leads. Lead spacing is 2.54 mm (0.1 inch), body diameter 5.0 ± 0.15 mm, and lens radius 2.49 mm (spherical).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (longer lead) | Positive terminal | Connects to current-limiting resistor and supply rail; polarity must be observed to avoid damage |
| Cathode (shorter lead / flat side) | Negative terminal | Common return path; marked by flat edge on package body and shorter lead length |
Key Features
| Feature | Design Value |
|---|---|
| Luminous intensity binning | Enables batch-matched brightness for multi-LED panels without manual sorting |
| Wavelength grouping (yellow) | Ensures color consistency across assemblies-critical for brand-aligned UI design |
| Wide viewing angle (±30°) | Eliminates need for precise operator positioning in control room or dashboard applications |
| DC and high-peak-current rated | Supports both steady-state indication and pulsed operation (e.g., blinking via MCU GPIO) |
| Tinted diffused lens | Softens point-source glare and improves readability under ambient lighting |
Applications
| Status Indicator | Power-On Confirmation |
|---|---|
|
Use Scenario: Mounted on front panels of PLCs, power supplies, and test equipment to show operational state. IC Role / Device Role / Timing Role: Visual status emitter - no timing or signal processing role; driven directly by logic-level outputs or discrete transistors. Use Value: High on-off contrast from tinted diffused lens ensures clear visibility even in brightly lit industrial environments. |
Use Scenario: Integrated into AC/DC adapter housings and embedded power modules to confirm input power presence. IC Role / Device Role / Timing Role: Passive indicator device - requires only series resistor and DC bias; no control interface or timing dependency. Use Value: Stable 2.4–3.0 V forward voltage allows direct connection to 3.3 V rails without level-shifting circuitry. |
| Legend Illumination | Maintenance Access Light |
|
Use Scenario: Backlighting engraved labels on switchgear, HVAC controls, and medical device interfaces. IC Role / Device Role / Timing Role: Low-power illumination source - operates continuously at 10 mA for long-life readability. Use Value: Tight dominant wavelength grouping (581–594 nm) ensures uniform yellow tone across multiple units on same panel. |
Use Scenario: Embedded in service access doors or diagnostic ports of telecom cabinets and industrial drives. IC Role / Device Role / Timing Role: Maintenance aid emitter - activated manually or via service-mode signal; no real-time control function. Use Value: ±30° viewing angle provides usable illumination over 120° arc without reflector optics or secondary lenses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar yellow LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLHY6405 | Higher luminous intensity (6.3–14 mcd at 10 mA) vs. TLHY6400 (1.6–10 mcd); same wavelength, VF, and package | Better suited for high-ambient-light environments (e.g., outdoor kiosks); may require resistor recalculation | Select TLHY6405 when higher brightness is needed without changing PCB layout or drive circuit |
| Kingbright L-7113YD | Same 5 mm T-1¾ package, yellow emission (585 nm typ.), but wider viewing angle (±35°) and higher VF (2.5–3.2 V) | Offers broader angular coverage but slightly higher forward voltage tolerance required | Choose L-7113YD if extended viewing cone is prioritized and drive voltage margin permits 3.2 V max |
Compared with TLHY6400, TLHY6405 delivers higher luminance in identical form factor and drive conditions, while Kingbright L-7113YD trades marginally higher VF for wider angular distribution-both retain compatibility with standard 5 mm through-hole footprints and indicator-class current drive.
Availability
TLHY6400 is available at Aetrix Electronics and suitable for status indication, power confirmation, and legend illumination requiring stable component supply, consistent color matching, and industrial-grade temperature resilience.
Supply support for TLHY6400 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, specializing in reliability-critical applications across automotive, industrial, and computing markets.
The TLHY6400 belongs to Vishay's standard 5 mm LED product line, engineered for cost-effective, high-yield visual indication in mass-produced equipment where mechanical interchangeability and optical consistency are essential.
FAQ
What is the dominant wavelength range of the TLHY6400?
The TLHY6400 has a dominant wavelength range of 581–594 nm, measured at 10 mA forward current. This specification ensures consistent yellow chromaticity across production lots and enables visual matching with other yellow LEDs in multi-color indicator arrays. The narrow band supports branding requirements where precise hue reproduction matters.
Can TLHY6400 operate reliably at 100 °C ambient temperature?
Yes, TLHY6400 is rated for continuous operation from –40 to +100 °C ambient temperature. At 100 °C, its maximum DC forward current must be derated per Figure 1 in the datasheet, but it remains functional within its absolute maximum ratings. Thermal resistance junction-to-ambient is 350 K/W, so proper board thermal relief is recommended for sustained high-temp use.
Is TLHY6400 compatible with automated pick-and-place assembly?
TLHY6400 is supplied in tape-and-reel format (e.g., TLHY6400-ASZ variant) with EIA-481-compliant carrier tape dimensions and orientation coding (AS12 = cathode first). Standard reel packaging supports SMT placement equipment with vacuum nozzles sized for 5 mm components, though it is a through-hole part and typically used in mixed-technology boards.
Does TLHY6400 require current-limiting resistors in all applications?
Yes, TLHY6400 must always be used with a series current-limiting resistor to prevent exceeding its 30 mA DC forward current rating. For example, at 5 V supply and 2.4 V typical VF, a 100 Ω resistor limits current to ~26 mA. Resistor value must be recalculated for each operating voltage and desired brightness level.
How does TLHY6400 differ from TLHR6400?
TLHY6400 emits yellow light (581–594 nm) with typical forward voltage 2.4 V, while TLHR6400 emits red light (612–630 nm) with typical forward voltage 2.0 V. Both share identical 5 mm T-1¾ package, ±30° viewing angle, and luminous intensity binning structure-but differ in semiconductor material optimization, spectral output, and electrical thresholds.
TLHY6400 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:
- 10mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 5mm, T-1 3/4
- Voltage - Forward (Vf) (Typ):
- 2.4V
- Current - Test:
- 10mA
- Viewing Angle:
- 60°
- Mounting Type:
- Through Hole
- Wavelength - Dominant:
- 588nm
- Wavelength - Peak:
- 585nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- T-1 3/4
- Size / Dimension:
- -
TLHY6400 FAQ
1.How can I place an order for TLHY6400 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLHY6400 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 TLHY6400 reliable?
The price and inventory of TLHY6400 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHY6400 is usually 5 days.
3.What payment methods are accepted for TLHY6400?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHY6400 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLHY6400?
TLHY6400 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLHY6400 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 TLHY6400?
For technical support, including TLHY6400 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHY6400 requirements.
6.How does Aetrix verify that TLHY6400 is sourced from the original manufacturer or authorized distributors?
All TLHY6400 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 TLHY6400 meets industry standards.
7.What is the process for return or replacement of TLHY6400?
All TLHY6400 units undergo pre-shipment inspection (PSI). If there is an issue with TLHY6400, 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 TLHY6400 part is unused and in its original packaging.
Return procedure for TLHY6400:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLHY6400 Tags
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LTST-C281KRKT
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150060GS75000
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150060VS75000
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150060AS75000
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150060YS75000
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150060SS75000
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150060BS75000
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151031VS06000
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151033RS03000
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150080BS75000
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150080GS75000
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