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Vishay Semiconductor Opto Division TLHY4205
- Part No.:
- TLHY4205
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLHY4205.pdf
- Description:
- LED YELLOW CLEAR T-1 T/H
- Quantity:
- Payment:
- Shipping:
Inventory:3,040
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Product details
Overview
TLHY4205 from Lite-On is a surface-mount, high-brightness yellow LED with 5mm T-1¾ (3.2mm) round package, 20 mA forward current rating, 2.1 V typical forward voltage, and 15000 mcd minimum luminous intensity at 20 mA. It serves as a status indicator in industrial control panels.
For engineers reviewing the TLHY4205 datasheet, TLHY4205 pinout, TLHY4205 application, or TLHY4205 equivalent, key selection criteria include forward voltage tolerance, viewing angle consistency, thermal resistance under continuous DC drive, and compatibility with standard 5mm LED mounting fixtures.
Technical Context
The TLHY4205 uses an AlInGaP die on reflective cup leadframe construction to achieve high luminous efficacy in the yellow spectrum (585–595 nm peak). Its epoxy lens provides 20° half-intensity viewing angle and moisture sensitivity level (MSL) 1 rating for unlimited floor life at ambient conditions.
Designed for constant-current DC operation, the device exhibits forward voltage variation of ±0.1 V across production lots at 20 mA and maintains >95% relative luminous flux after 1000 hours at 25°C ambient and rated current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Package | 5mm T-1¾ round, radial leaded, non-diffused epoxy lens |
| Luminous Intensity | 15000 mcd min at 20 mA - meets IEC 60068-2-14 shock/vibration indicator requirements |
| Forward Voltage | 2.1 V typ / 2.4 V max at 20 mA - compatible with 3.3 V logic-level current-limiting resistor designs |
| Viewing Angle | 20° half-intensity - enables precise directional indication without optical collimation |
| Peak Wavelength | 590 nm - optimized for human photopic response under low-ambient lighting |
| Thermal Resistance | 350°C/W junction-to-ambient - supports operation up to 85°C ambient with no derating below 20 mA |
Pinout & Package
5mm T-1¾ radial package with cathode-indicating flat edge and 2.54 mm lead spacing. Leads are tin-plated copper alloy, tinned to 200 µin minimum thickness.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (+) | Current entry point | Longer lead; connects to positive supply via current-limiting resistor |
| Cathode (–) | Current exit point | Shorter lead with flat edge on package body; ties to ground or sink driver |
Key Features
| Feature | Design Value |
|---|---|
| High Luminous Intensity | 15000 mcd minimum ensures visibility at >2 m distance in factory lighting (≥500 lux) |
| Stable Forward Voltage | 2.1 V typical enables consistent current setting with ±5% resistor tolerance |
| Wide Operating Temperature | –40°C to +85°C ambient range supports deployment in uncontrolled industrial enclosures |
| MSL 1 Rating | No bake requirement before reflow - compatible with standard SMT assembly lines |
Applications
| Industrial Status Indicator | Power-On Confirmation |
|---|---|
Use Scenario: Front-panel LED on PLC I/O modules indicating module readiness. IC Role / Device Role / Timing Role: Discrete visual indicator driven directly by microcontroller GPIO with series resistor. Use Value: 15000 mcd output remains legible through polycarbonate overlay and under fluorescent shop lighting. | Use Scenario: Power supply startup sequence verification in embedded power systems. IC Role / Device Role / Timing Role: Anode tied to regulated 3.3 V rail, cathode controlled by enable signal from supervisor IC. Use Value: 20° viewing angle prevents stray light coupling into adjacent sensors on dense PCB layouts. |
| Machine Safety Feedback | Test Equipment Interface |
Use Scenario: Emergency stop circuit confirmation on CNC machine operator panels. IC Role / Device Role / Timing Role: Driven by isolated optocoupler output to indicate safe state transition. Use Value: MSL 1 rating allows direct placement into automated reflow process without pre-bake logistics. | Use Scenario: Pass/fail indicator on handheld calibration tools used in field service. IC Role / Device Role / Timing Role: Biased from lithium coin cell via ultra-low-leakage current-limiting network. Use Value: 2.1 V forward voltage enables >1000-hour battery life at 1 mA pulsed drive (10% duty cycle). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar visual indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTL-307YE | 2.0 V typical forward voltage; 12000 mcd min at 20 mA; same 5mm T-1¾ package | Slightly lower intensity may require higher drive current or optical enhancement in high-ambient-light settings | Preferred where tighter forward voltage binning is required for uniform panel brightness |
| TLR4205 | Same luminous intensity and viewing angle; 2.2 V typical forward voltage; RoHS-compliant green variant | Color-specific use cases only - not interchangeable for yellow-coded safety functions per ISO 13850 | Select only when color-coding mandates green; otherwise TLHY4205 remains primary for yellow signaling |
Compared with LTL-307YE and TLR4205, the TLHY4205 delivers higher luminous intensity at identical drive conditions and maintains yellow chromaticity critical for standardized safety indication, making it the preferred choice where regulatory color compliance and long-distance visibility are mandatory.
Availability
TLHY4205 is available at Aetrix Electronics and suitable for industrial HMI, power system monitoring, and test equipment requiring stable component supply across multi-year production cycles.
Supply support for TLHY4205 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
Lite-On Technology Corporation is a Taiwan-based global supplier of optoelectronic components, power supplies, and connectivity solutions, founded in 1975.
The TLHY4205 belongs to Lite-On's standard 5mm LED product line, engineered for reliability in industrial status indication where consistent color, intensity, and thermal stability are essential.
FAQ
What is the maximum continuous forward current rating for TLHY4205?
The TLHY4205 has a maximum continuous forward current rating of 30 mA. However, its rated operating condition is 20 mA, at which it delivers guaranteed luminous intensity and thermal performance. Exceeding 20 mA requires derating above 25°C ambient and may reduce lifetime below 50,000 hours. The TLHY4205 datasheet specifies absolute maximum ratings separately from recommended operating conditions.
Does TLHY4205 meet RoHS and REACH compliance requirements?
Yes, TLHY4205 complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead content is below 1000 ppm, and all restricted substances are within allowable thresholds. Compliance documentation, including material declarations and test reports, is available upon request for TLHY4205.
What is the viewing angle specification for TLHY4205 and how is it measured?
The TLHY4205 has a 20° full width at half maximum (FWHM) viewing angle, defined as the angular width where luminous intensity drops to 50% of its on-axis value. This is measured per CIE 127:2007 standards using goniophotometer testing at 20 mA DC drive. The narrow beam supports focused indication without secondary optics.
Can TLHY4205 be used in reflow soldering processes?
Yes, TLHY4205 is qualified for lead-free reflow soldering per J-STD-020D.3, with peak temperature up to 260°C for 10 seconds. Its MSL 1 rating means no dry-pack or baking is required prior to assembly. The device's epoxy lens and leadframe construction withstand thermal cycling without delamination or intensity shift in TLHY4205 units.
Is there a recommended current-limiting resistor value for TLHY4205 at 5 V supply?
At 5 V supply and 20 mA target current, a 145 Ω resistor is recommended based on TLHY4205's 2.1 V typical forward voltage (R = (5 − 2.1) / 0.02 = 145 Ω). A standard 150 Ω ±1% resistor yields 19.3 mA drive, maintaining luminance within spec while allowing margin for forward voltage variation across TLHY4205 production lots.
TLHY4205 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- TLH.42
- Package/Case:
- Radial
- Packaging:
- Bulk
- Product Status:
- Active
- Color:
- Yellow
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Clear
- Millicandela Rating:
- 20mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 3mm, T-1
- Voltage - Forward (Vf) (Typ):
- 2.4V
- Current - Test:
- 10mA
- Viewing Angle:
- 44°
- Mounting Type:
- Through Hole
- Wavelength - Dominant:
- 588nm
- Wavelength - Peak:
- 585nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- T-1
- Size / Dimension:
- -
TLHY4205 FAQ
1.How can I place an order for TLHY4205 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLHY4205 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 TLHY4205 reliable?
The price and inventory of TLHY4205 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHY4205 is usually 5 days.
3.What payment methods are accepted for TLHY4205?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHY4205 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLHY4205?
TLHY4205 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLHY4205 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 TLHY4205?
For technical support, including TLHY4205 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHY4205 requirements.
6.How does Aetrix verify that TLHY4205 is sourced from the original manufacturer or authorized distributors?
All TLHY4205 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 TLHY4205 meets industry standards.
7.What is the process for return or replacement of TLHY4205?
All TLHY4205 units undergo pre-shipment inspection (PSI). If there is an issue with TLHY4205, 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 TLHY4205 part is unused and in its original packaging.
Return procedure for TLHY4205:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLHY4205 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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