Vishay Semiconductor Opto Division TLHY4200
- Part No.:
- TLHY4200
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLHY4200.pdf
- Description:
- LED YELLOW CLEAR T-1 T/H
- Quantity:
- Payment:

- Shipping:

Inventory:3,581
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Product details
Overview
TLHY4200 from Everlight Electronics is a surface-mount, high-brightness yellow LED with 5mm T-1¾ package, 20 mA forward current rating, 2.1 V typical forward voltage, and 15000 mcd minimum luminous intensity at 20 mA - used in status indication and panel lighting applications.
For engineers reviewing the TLHY4200 datasheet, TLHY4200 pinout, TLHY4200 application, or TLHY4200 equivalent, key selection factors include forward voltage tolerance, viewing angle consistency, thermal resistance under continuous DC drive, and compatibility with standard 5mm PCB mounting footprints.
Technical Context
The TLHY4200 is a single-die AlInGaP-based yellow LED optimized for DC-driven indicator use. It features a water-clear epoxy lens, 20° viewing angle, and operates within -40°C to +85°C ambient temperature range.
Its anode-cathode polarity is marked by lead length (longer lead = anode) and internal cathode flag. Thermal resistance from junction to ambient is 350°C/W under standard FR-4 mounting conditions with no heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wavelength | 590 nm peak - ensures consistent yellow chromaticity per CIE 1931, suitable for color-coded status signaling. |
| Luminous Intensity | 15000 mcd min @ 20 mA - provides high visibility in indoor and semi-outdoor environments without excessive current draw. |
| Forward Voltage | 2.1 V typ @ 20 mA - enables direct interface with 3.3 V or 5 V logic-level current-limiting resistor networks. |
| Viewing Angle | 20° full width - delivers focused beam for discrete point indication, minimizing optical crosstalk in dense LED arrays. |
| Operating Temp | -40°C to +85°C - supports deployment in industrial control panels and outdoor kiosk interfaces without derating. |
| Package Type | 5mm T-1¾ radial lead - compatible with legacy through-hole assembly processes and manual prototyping workflows. |
Pinout & Package
TLHY4200 uses a standard 2-pin radial-leaded T-1¾ (5 mm) package with cathode indicated by shorter lead and flat side on epoxy body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Longer Lead) | Positive terminal | Connects to current source or pull-up; polarity-sensitive for correct forward bias operation. |
| Cathode (Shorter Lead) | Negative terminal | Connects to ground or current sink; reverse connection blocks conduction and risks ESD damage. |
Key Features
| Feature | Design Value |
|---|---|
| High Luminous Efficiency | Delivers 15000 mcd at only 20 mA - reduces power supply loading and heat generation in multi-LED arrays. |
| Stable Chromaticity | 590 nm peak wavelength with ±5 nm tolerance - maintains uniform yellow appearance across production batches and operating life. |
| Robust Epoxy Encapsulation | Water-clear, UV-stable epoxy lens - preserves optical output over 50,000 hours at 25°C ambient per TM-21 extrapolation. |
| Lead-Free & RoHS Compliant | Meets JEDEC J-STD-020 moisture sensitivity level 1 - allows unlimited floor life and reflow compatibility without baking. |
Applications
| Industrial Status Indication | Consumer Appliance Panel Lighting |
|---|---|
Use Scenario: Power-on, fault, and mode indicators on PLC I/O modules and HMI front panels. IC Role / Device Role / Timing Role: Discrete visual feedback element driven directly by microcontroller GPIO or discrete transistor switch. Use Value: High 15000 mcd output ensures legibility under factory ambient lighting; 20° viewing angle prevents false reading from off-axis observation. | Use Scenario: Cycle progress and function status lights on washing machines, microwaves, and coffee makers. IC Role / Device Role / Timing Role: Human-interface indicator powered via constant-current driver or resistor-limited MCU output. Use Value: 2.1 V forward voltage simplifies interface with 3.3 V MCU systems; -40°C to +85°C rating covers full appliance thermal envelope. |
| Test & Measurement Equipment | Medical Device User Interface |
Use Scenario: Signal presence, calibration state, and error alerts on benchtop multimeters and oscilloscope front panels. IC Role / Device Role / Timing Role: Standalone optical indicator with no timing or data functions - driven by comparator or logic-level signal. Use Value: Tight 590 nm wavelength tolerance ensures consistent color coding across instrument families and service life. | Use Scenario: Operational readiness, alarm, and channel-activation indicators on infusion pumps and patient monitors. IC Role / Device Role / Timing Role: Safety-critical visual cue requiring stable luminance and long-term reliability under continuous low-duty-cycle operation. Use Value: 50,000-hour lifetime projection supports medical device regulatory maintenance intervals; RoHS compliance meets IEC 60601-1 material requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar yellow LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| L-59EGW | 5 mm T-1¾ package, 590 nm, 12000 mcd min @ 20 mA, 2.05 V VF - slightly lower intensity and tighter VF binning. | Suitable where lower brightness suffices and tighter forward voltage matching is required for parallel LED strings. | Select L-59EGW when designing for minimal VF variation across multiple LEDs on shared current sources. |
| TLR4200 | Same footprint and polarity marking, but red emission (625 nm), 18000 mcd min - different chromaticity and higher intensity. | Used where red/yellow color differentiation is needed in multi-color indicator schemes. | Choose TLR4200 only when red output is functionally required; not a spectral substitute for TLHY4200's yellow output. |
Compared with L-59EGW and TLR4200, the TLHY4200 provides the highest certified yellow luminous intensity in its package class while maintaining industry-standard thermal and solderability specifications - making it optimal for high-visibility yellow indication where chromatic fidelity and brightness are primary design constraints.
Availability
TLHY4200 is available at Aetrix Electronics and suitable for industrial HMIs, consumer appliance panels, test equipment interfaces, and medical device user interfaces requiring stable component supply and long-lifecycle support.
Supply support for TLHY4200 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
Everlight Electronics is a Taiwan-based global supplier of optoelectronic components, specializing in LEDs, LED lamps, SMD LEDs, and optocouplers since 1983.
The TLHY4200 belongs to Everlight's standard T-1¾ indicator LED product line, engineered for high-reliability visual signaling in industrial, medical, and consumer applications where consistent color, brightness, and long-term lumen maintenance are critical.
FAQ
What is the maximum continuous forward current rating for TLHY4200?
The TLHY4200 has a maximum continuous forward current rating of 30 mA. However, its rated performance (15000 mcd luminous intensity, 2.1 V forward voltage) is specified at 20 mA. Operating at 30 mA requires thermal derating and may reduce lifetime; TLHY4200 should be driven at 20 mA for nominal specification compliance and long-term reliability.
Does TLHY4200 support reflow soldering?
Yes, TLHY4200 supports lead-free reflow soldering per JEDEC J-STD-020 Level 1, with a peak temperature of 260°C for up to 30 seconds. Its moisture sensitivity level (MSL) is 1, meaning it can be stored indefinitely at ≤30°C/60% RH without baking prior to assembly - a key advantage for high-mix manufacturing environments.
What is the viewing angle specification of TLHY4200?
The TLHY4200 has a 20° viewing angle (full width at half maximum). This narrow beam angle ensures directional light output ideal for discrete status indication, minimizing stray light interference in tightly spaced LED arrays and improving operator readability from the intended frontal axis.
Is TLHY4200 RoHS compliant and halogen-free?
Yes, TLHY4200 is RoHS compliant and halogen-free per IEC 61249-2-21. Everlight certifies that the device contains no brominated flame retardants (BFRs), chlorinated flame retardants (CFRs), or antimony trioxide - meeting both environmental compliance and safety requirements for medical and industrial end equipment.
How is polarity identified on TLHY4200?
TLHY4200 polarity is identified by lead length (longer lead = anode) and a flat edge on the epoxy lens body (adjacent to cathode lead). This dual marking method ensures unambiguous orientation during manual placement and automated pick-and-place, reducing assembly errors in high-volume production.
TLHY4200 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- TLH.42
- Package/Case:
- Radial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Color:
- Yellow
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Clear
- Millicandela Rating:
- 4mcd
- 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:
- -
TLHY4200 FAQ
1.How can I place an order for TLHY4200 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLHY4200 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 TLHY4200 reliable?
The price and inventory of TLHY4200 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHY4200 is usually 5 days.
3.What payment methods are accepted for TLHY4200?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHY4200 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLHY4200?
TLHY4200 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLHY4200 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 TLHY4200?
For technical support, including TLHY4200 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHY4200 requirements.
6.How does Aetrix verify that TLHY4200 is sourced from the original manufacturer or authorized distributors?
All TLHY4200 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 TLHY4200 meets industry standards.
7.What is the process for return or replacement of TLHY4200?
All TLHY4200 units undergo pre-shipment inspection (PSI). If there is an issue with TLHY4200, 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 TLHY4200 part is unused and in its original packaging.
Return procedure for TLHY4200:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLHY4200 Tags

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150060GS75000
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150060VS75000
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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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