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Vishay Semiconductor Opto Division TLLR5400
- Part No.:
- TLLR5400
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLLR5400.pdf
- Description:
- LED RED DIFFUSED T-1 3/4 T/H
- Quantity:
- Payment:
- Shipping:
Inventory:1,492
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Product details
Overview
TLLR5400 from Vishay Semiconductors is a low-current red LED in a 5 mm tinted diffused package, with dominant wavelength 612–625 nm, luminous intensity 0.63–1.2 mcd at 2 mA, forward voltage 1.9–2.4 V, and ±25° viewing angle-designed for status indication in battery-powered instrumentation.
For engineers reviewing the TLLR5400 datasheet, TLLR5400 pinout, TLLR5400 application, or TLLR5400 equivalent, key selection criteria include low-power operation (IF = 2 mA), GaAsP-on-GaP semiconductor technology, 6 V reverse voltage rating, thermal resistance of 500 K/W, and compatibility with CMOS/MOS logic interfaces.
Technical Context
The TLLR5400 operates as a visible-light emitter using GaAsP on GaP heterostructure technology, optimized for stable optical output at low drive current (2 mA). Its 5 mm diffused epoxy lens provides uniform illumination with ±25° half-intensity angle and peak wavelength at 635 nm.
Rated for ambient temperatures from –40 °C to +100 °C and junction temperature up to 100 °C, the device supports long-term reliability in space-constrained, low-power DC circuits with 20 mW max power dissipation and 6 V reverse voltage tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 0.63–1.2 mcd at 2 mA - sufficient for clear visual status indication under indoor ambient light |
| Dominant wavelength | 612–625 nm - standard red spectral output compatible with human eye sensitivity peak |
| Forward voltage | 1.9–2.4 V at 2 mA - enables direct interface with 3.3 V or 5 V logic without series resistor recalculations |
| Viewing angle | ±25° - wide enough for panel-mount visibility, narrow enough to minimize optical crosstalk |
| Reverse voltage | 6 V - protects against accidental reverse polarity in low-voltage DC systems |
| Junction capacitance | 50 pF at 0 V, 1 MHz - negligible impact on DC or low-frequency switching applications |
| Thermal resistance | 500 K/W - defines temperature rise per milliwatt; critical for derating in sealed enclosures |
Pinout & Package
Package: Ø 5 mm radial-leaded, tinted diffused epoxy lens, standard through-hole mounting. Cathode indicated by flat side and shorter lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (longer lead) | Positive supply connection | Must be biased ≥1.9 V above cathode to achieve rated luminous output at 2 mA |
| Cathode (shorter lead, flat side) | Ground or return path | Internal P-N junction cathode; reverse voltage must not exceed 6 V |
Key Features
| Feature | Design Value |
|---|---|
| Low power consumption | Specified at IF = 2 mA - reduces battery drain in portable devices and extends operating life |
| High brightness per mA | 1.2 mcd typical at 2 mA - delivers visible output with minimal current draw |
| CMOS/MOS compatible | Forward voltage ≤2.4 V and reverse voltage ≥6 V - ensures safe interfacing with standard logic outputs |
| Luminous intensity categorization | IVmin/IVmax ≤ 0.5 in one packing unit - enables consistent brightness matching across LEDs in multi-indicator panels |
| Robust thermal performance | RthJA = 500 K/W and Tj ≤ 100 °C - supports reliable operation in unventilated industrial enclosures |
Applications
| Industrial Panel Indicators | Portable Test Equipment |
|---|---|
Use Scenario: Front-panel status lights on programmable logic controllers and sensor transmitters. IC Role / Device Role / Timing Role: Visual feedback device indicating power-on, fault, or communication activity. Use Value: Low 2 mA drive requirement simplifies current-limiting design and reduces PCB heat generation. | Use Scenario: Battery-operated multimeters and signal generators requiring long runtime. IC Role / Device Role / Timing Role: Power-on and mode indicator in handheld instruments. Use Value: 0.63–1.2 mcd output remains clearly visible at 2 mA, minimizing quiescent current draw. |
| Low-Power IoT Sensors | Medical Diagnostic Devices |
Use Scenario: Wireless environmental sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Wake-up or alert indicator triggered by BLE or LoRaWAN events. Use Value: ±25° viewing angle ensures detectable illumination within compact housing without optical collimation. | Use Scenario: Handheld pulse oximeters and glucose meters with strict power budgets. IC Role / Device Role / Timing Role: Operational status and error code display during clinical use. Use Value: GaAsP-on-GaP technology provides stable red emission over –40 °C to +100 °C ambient range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLHR5400 | Same package and optics; higher luminous intensity (1.5–3.0 mcd at 2 mA) | Better suited for high-ambient-light environments where enhanced visibility is required | Select TLHR5400 when >1.2 mcd output is needed without increasing drive current |
| TLDR5400 | Same footprint and electrical specs; uses AlGaAs technology (635 nm dominant, 2.0–2.5 V VF) | Slightly redder hue and marginally higher forward voltage; lower RthJA (450 K/W) | Choose TLDR5400 for improved thermal efficiency in thermally dense layouts |
Compared with TLHR5400 and TLDR5400, the TLLR5400 offers the lowest luminous intensity and most conservative forward voltage range-making it optimal for ultra-low-power designs where minimal current draw and predictable voltage drop are prioritized over brightness headroom.
Availability
TLLR5400 is available at Aetrix Electronics and suitable for industrial panel indicators, portable test equipment, low-power IoT sensors, and medical diagnostic devices requiring stable component supply and long-lifecycle support.
Supply support for TLLR5400 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 high-reliability, application-optimized devices for industrial, automotive, and computing markets.
The TLLR5400 belongs to Vishay's low-current LED product line, engineered specifically for energy-efficient visual indication in space- and power-constrained DC systems.
FAQ
What is the maximum continuous forward current for the TLLR5400?
The TLLR5400 has a maximum DC forward current of 7 mA at ambient temperatures ≤90 °C. This rating is defined in the Absolute Maximum Ratings table and assumes proper thermal management. Exceeding 7 mA may accelerate degradation or cause irreversible damage. For typical operation, Vishay specifies performance at 2 mA-where luminous intensity, forward voltage, and viewing angle are characterized. Always verify thermal conditions in your layout before operating near the absolute maximum.
Is the TLLR5400 RoHS-compliant and halogen-free?
Yes, the TLLR5400 complies with RoHS Directive 2011/65/EU and is halogen-free per Vishay's material categorization standard (document 99912). The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE), and bromine/chlorine content is below 900 ppm. Full compliance documentation is available via Vishay's website using document number 83030.
Can the TLLR5400 be driven directly from a microcontroller GPIO pin?
Yes, the TLLR5400 can be driven directly from most 3.3 V or 5 V microcontroller GPIO pins when used with an appropriate current-limiting resistor. With a typical forward voltage of 1.9–2.4 V at 2 mA, a 330 Ω resistor suffices for 3.3 V I/O, and 1 kΩ works for 5 V. Its CMOS/MOS compatibility and 6 V reverse voltage rating ensure robustness against transient mismatches. Avoid direct connection without a resistor-even at 2 mA, uncontrolled current risks exceeding absolute maximum ratings.
What is the significance of "luminous intensity categorized" for the TLLR5400?
"Luminous intensity categorized" means that LEDs in the same packing unit (e.g., same reel or bulk bag) are binned to ensure IVmin/IVmax ≤ 0.5-i.e., maximum variation of 2:1 in brightness. This allows designers to achieve uniform visual appearance across multiple indicators on a single PCB without manual sorting. The TLLR5400's 0.63–1.2 mcd range reflects its binning specification at 2 mA, not unit-to-unit scatter across shipments.
Does the TLLR5400 have a specified lifetime or L70 rating?
No lifetime or L70 (time to 70% initial luminous flux) rating is published for the TLLR5400 in document 83030. Vishay characterizes this device for parametric stability-not extended operational life-given its low-current, non-continuous-duty application focus. Reliability data (e.g., HTOL, temperature cycling) is available upon request from Vishay's quality team. For mission-critical or continuously illuminated applications, consult Vishay's high-reliability LED families such as the VLMx series.
TLLR5400 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- -
- Package/Case:
- Radial
- Packaging:
- Bulk
- Product Status:
- Active
- Color:
- Red
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Diffused
- Millicandela Rating:
- 1.2mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 5.80mm Dia
- Voltage - Forward (Vf) (Typ):
- 1.9V
- Current - Test:
- 2mA
- Viewing Angle:
- 50°
- Mounting Type:
- Through Hole
- Wavelength - Dominant:
- 619nm
- Wavelength - Peak:
- 635nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- T-1 3/4
- Size / Dimension:
- -
TLLR5400 FAQ
1.How can I place an order for TLLR5400 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLLR5400 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 TLLR5400 reliable?
The price and inventory of TLLR5400 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLLR5400 is usually 5 days.
3.What payment methods are accepted for TLLR5400?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLLR5400 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLLR5400?
TLLR5400 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLLR5400 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 TLLR5400?
For technical support, including TLLR5400 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLLR5400 requirements.
6.How does Aetrix verify that TLLR5400 is sourced from the original manufacturer or authorized distributors?
All TLLR5400 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 TLLR5400 meets industry standards.
7.What is the process for return or replacement of TLLR5400?
All TLLR5400 units undergo pre-shipment inspection (PSI). If there is an issue with TLLR5400, 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 TLLR5400 part is unused and in its original packaging.
Return procedure for TLLR5400:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLLR5400 Tags
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LTST-C281KRKT
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150060GS75000
Würth Elektronik
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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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150141GS73100
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