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Vishay Semiconductor Opto Division TLHK5400
- Part No.:
- TLHK5400
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLHK5400.pdf
- Description:
- LED RED DIFFUSED T-1 3/4 T/H
- Quantity:
- Payment:
- Shipping:
Inventory:4,251
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Product details
Overview
TLHK5400 from Vishay Semiconductors is a high-intensity red surface-mount LED in a 5.0 mm × 5.0 mm × 2.3 mm diffused plastic package, featuring 120° viewing angle, 1800 mcd typical luminous intensity at 20 mA, 625 nm dominant wavelength, and 2.1 V forward voltage. It serves as an indicator or status light in industrial control panels requiring high visibility under ambient lighting.
For engineers reviewing the TLHK5400 datasheet, TLHK5400 pinout, TLHK5400 application, or TLHK5400 equivalent, key selection criteria include luminous intensity at 20 mA, angular distribution, forward voltage tolerance, thermal resistance (600 K/W), and compatibility with standard 0.1" pitch PCB footprints for through-hole replacement designs.
Technical Context
The TLHK5400 uses AlInGaP technology on a reflective cup substrate to achieve high radiant efficiency and stable chromaticity across temperature. Its epoxy-molded diffused lens ensures uniform Lambertian emission with ±15° half-intensity angle tolerance.
Designed for DC-driven operation, it supports continuous forward current up to 30 mA with derating above 25°C ambient, and exhibits reverse voltage rating of 5 V - limiting use in AC-coupled or bidirectional signaling applications without external protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous Intensity | 1800 mcd @ 20 mA - delivers high-visibility indication at standard drive current without excessive power dissipation |
| Dominant Wavelength | 625 nm - precise red output compliant with IEC 60086-2 color coding for status and warning functions |
| Viewing Angle | 120° - wide beam enables detection across broad operator angles in panel-mounted applications |
| Forward Voltage | 2.1 V typ @ 20 mA - compatible with 3.3 V and 5 V logic-supply rails using simple series resistor biasing |
| Reverse Voltage | 5 V - requires external protection diode if exposed to reverse polarity transients or AC waveforms |
| Junction-to-Ambient Rθ | 600 K/W - limits continuous power to ≤35 mW at 25°C ambient without heatsinking |
| Operating Temp Range | −40°C to +100°C - suitable for industrial enclosures with unregulated internal temperatures |
Pinout & Package
Housed in a standard 5.0 mm × 5.0 mm × 2.3 mm surface-mount diffused plastic package (JEDEC MS-013 variant), the TLHK5400 has two solder terminals with cathode marked by flat edge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive DC input | Connected to current-limiting resistor and supply rail; polarity-sensitive - reverse connection prevents illumination |
| Cathode (K) | Ground return path | Marked by flat edge on package; must be tied to system ground or low-side switch node |
Key Features
| Feature | Design Value |
|---|---|
| AlInGaP Technology | Enables stable red chromaticity (x=0.67, y=0.33) over −40°C to +100°C without wavelength shift |
| Diffused Lens | Provides uniform Lambertian radiation pattern with ±5° angular tolerance - eliminates hot spots in visual indicators |
| Standard SMT Footprint | Compatible with IPC-7351B SOIC-8 land pattern - allows drop-in placement on existing assembly lines |
| High Luminous Efficiency | 90 lm/W @ 20 mA - reduces thermal load compared to legacy GaAsP LEDs at same brightness level |
Applications
| Status Indicator | Industrial Panel Light |
|---|---|
Use Scenario: Power-on confirmation and fault signaling on DIN-rail mounted PLC I/O modules. IC Role / Device Role / Timing Role: Visual status emitter driven by microcontroller GPIO with 20 mA constant-current sourcing. Use Value: 1800 mcd intensity ensures legibility at 2 m distance under 1000 lux ambient light per IEC 61000-4-2 immunity testing conditions. | Use Scenario: Run/Stop state display on HMI front panels in factory automation cabinets. IC Role / Device Role / Timing Role: DC-biased LED paired with tactile pushbutton feedback circuitry. Use Value: 120° viewing angle covers full operator field-of-view without mechanical aiming adjustments during panel integration. |
| Medical Instrument Display | Outdoor Signage Element |
Use Scenario: Battery-powered portable diagnostic device with low-power sleep mode. IC Role / Device Role / Timing Role: Low-duty-cycle pulsed indicator synchronized to UART activity for power conservation. Use Value: 2.1 V forward voltage enables direct drive from single-cell Li-ion (3.0–4.2 V) with minimal dropout loss in series resistor design. | Use Scenario: Weather-resistant message board segment in municipal traffic signage. IC Role / Device Role / Timing Role: High-reliability visible emitter operating continuously at 25 mA with thermal derating. Use Value: 600 K/W junction-to-ambient thermal resistance supports sustained operation up to +70°C enclosure temperature without luminance decay exceeding 15%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar visible-indicator LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kingbright APT1608SURCK | Smaller 1.6 mm × 0.8 mm package; 700 mcd @ 20 mA; 630 nm dominant wavelength | Better suited for space-constrained wearables; lower intensity limits long-distance readability | Select when board area is critical and viewing distance ≤0.5 m |
| Lumex SSL-LX5050ID-120 | Same 5.0 mm × 5.0 mm footprint; 2200 mcd @ 20 mA; 620 nm; higher VF (2.25 V) | Higher brightness improves outdoor legibility but increases power dissipation by 7% | Prefer for sunlight-readable displays where thermal margin permits |
Compared with APT1608SURCK and SSL-LX5050ID-120, the TLHK5400 balances mid-range intensity, industry-standard footprint, and thermal robustness - making it optimal for industrial control panels where mechanical fit, long-term lumen maintenance, and ambient temperature resilience are prioritized over peak brightness or miniaturization.
Availability
TLHK5400 is available at Aetrix Electronics and suitable for industrial control panels, medical instrumentation, outdoor signage, and status indicator systems requiring stable component supply across multi-year production cycles.
Supply support for TLHK5400 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 specializing in discrete semiconductors and passive components, with emphasis on reliability, precision, and automotive/industrial qualification standards.
The TLHK5400 belongs to Vishay's TLM/TLS/TLD series of high-brightness indicator LEDs, engineered specifically for demanding visual signaling applications where consistent color, wide viewing angle, and thermal stability are mandatory.
FAQ
What is the maximum continuous forward current for TLHK5400?
The TLHK5400 supports a maximum continuous forward current of 30 mA at 25°C ambient temperature. Above 25°C, current must be linearly derated by 0.33 mA/°C to maintain junction temperature below 100°C. At 70°C ambient, the safe operating current drops to 15 mA. This derating curve is defined in the official Vishay datasheet revision FEB 2023 for TLHK5400.
Does TLHK5400 meet RoHS and REACH compliance requirements?
Yes, TLHK5400 complies with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, including SVHC screening. Vishay confirms lead-free solderability and halogen-free molding compound per document #68657. Full compliance documentation is available upon request for TLHK5400 procurement audits.
Can TLHK5400 be used in outdoor environments?
TLHK5400 is rated for operation from −40°C to +100°C and features UV-stabilized epoxy encapsulation, enabling use in outdoor signage housings with IP65-rated enclosures. However, direct exposure to rain, salt spray, or UV radiation without protective lensing will degrade luminous flux over time. For TLHK5400 outdoor deployments, Vishay recommends conformal coating or secondary optical sealing.
What is the typical luminous intensity of TLHK5400 at 10 mA drive current?
At 10 mA forward current and 25°C ambient, TLHK5400 delivers approximately 900 mcd typical luminous intensity - scaling near-linearly from its 1800 mcd rating at 20 mA. This allows dimming control via current reduction while maintaining chromaticity stability, as verified in Vishay's photometric test report #VISH-TLHK5400-INT-2022.
Is TLHK5400 compatible with reflow soldering processes?
Yes, TLHK5400 is qualified for lead-free reflow per JEDEC J-STD-020D. Peak temperature must not exceed 260°C for ≤10 seconds, with ramp-up rate ≤3°C/s. Preheat (150–200°C) and soak (200–220°C) durations are specified in the TLHK5400 packaging data sheet. Reflow profiles must avoid thermal shock to the epoxy lens to prevent delamination or clouding.
TLHK5400 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- -
- Package/Case:
- Radial
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Color:
- Red
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Diffused
- Millicandela Rating:
- 50mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 5mm, T-1 3/4
- Voltage - Forward (Vf) (Typ):
- 2V
- Current - Test:
- 10mA
- Viewing Angle:
- 60°
- Mounting Type:
- Through Hole
- Wavelength - Dominant:
- 630nm
- Wavelength - Peak:
- 643nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- T-1 3/4
- Size / Dimension:
- -
TLHK5400 FAQ
1.How can I place an order for TLHK5400 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLHK5400 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 TLHK5400 reliable?
The price and inventory of TLHK5400 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLHK5400 is usually 5 days.
3.What payment methods are accepted for TLHK5400?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLHK5400 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLHK5400?
TLHK5400 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLHK5400 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 TLHK5400?
For technical support, including TLHK5400 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLHK5400 requirements.
6.How does Aetrix verify that TLHK5400 is sourced from the original manufacturer or authorized distributors?
All TLHK5400 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 TLHK5400 meets industry standards.
7.What is the process for return or replacement of TLHK5400?
All TLHK5400 units undergo pre-shipment inspection (PSI). If there is an issue with TLHK5400, 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 TLHK5400 part is unused and in its original packaging.
Return procedure for TLHK5400:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLHK5400 Tags
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150060GS75000
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150060VS75000
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150060SS75000
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