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Vishay Semiconductor Opto Division TLUO2401
- Part No.:
- TLUO2401
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- Radial
- Datasheet:
-
TLUO2401.pdf
- Description:
- LED RED DIFFUSED 1.8MM T/H
- Quantity:
- Payment:
- Shipping:
Inventory:1,366
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Product details
Overview
TLUO2401 from Vishay Semiconductors is a red 1.8 mm tinted diffused miniplast LED with dominant wavelength 612–625 nm, luminous intensity 4–20 mcd at 10 mA, forward voltage 2–3 V at 20 mA, ±20° viewing angle, and GaAsP-on-GaP technology - used for status indication in industrial control panels and consumer appliance interfaces.
For engineers reviewing the TLUO2401 datasheet, TLUO2401 pinout, TLUO2401 application, or TLUO2401 equivalent, this page delivers verified optical, electrical, thermal, and packaging data - including absolute maximum ratings, luminous intensity binning, wavelength classification, and thermal resistance - to support selection for DC/pulse-driven indicator designs requiring stable brightness and color consistency across temperature.
Technical Context
The TLUO2401 operates as a through-hole, two-terminal light-emitting diode with epoxy-encapsulated 1.8 mm miniplast package. Its GaAsP-on-GaP heterostructure enables red emission with narrow dominant wavelength tolerance (612–625 nm) and low thermal drift of luminous output (±10% over −40°C to +85°C per Fig. 13).
Rated for 30 mA DC forward current and 1 A surge (tp ≤ 10 μs), it features 450 K/W junction-to-ambient thermal resistance and supports end-to-end stacking at 2.54 mm center-to-center spacing - enabling compact multi-LED arrays in space-constrained front-panel layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 4–20 mcd at 10 mA - defines visible brightness range for human-readable status indication under typical ambient lighting |
| Dominant wavelength | 612–625 nm - ensures consistent red hue compliant with IEC 60068-2-52 visual signaling requirements |
| Forward voltage | 2–3 V at 20 mA - determines series resistor value for 3.3 V or 5 V supply rail operation |
| Viewing angle | ±20° half-intensity - provides focused beam suitable for directional panel indicators without excessive light spill |
| Thermal resistance | 450 K/W - limits junction temperature rise to ≤45°C above ambient at 20 mA, supporting operation up to +100°C ambient |
| Absolute max forward current | 30 mA DC - sets upper boundary for continuous drive without degradation or accelerated lumen depreciation |
| Reverse voltage rating | 6 V - defines minimum protection needed from transient reverse bias in multiplexed or shared-cathode PCB layouts |
Pinout & Package
TLUO2401 uses a standard 2-pin through-hole miniplast package (Ø1.8 mm) with cathode-indicating flat side and axial lead configuration. Leads are tin-plated copper, RoHS-compliant, and rated for 260°C soldering (3 s, 2 mm from body).
| 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 reverse breakdown |
| Cathode (shorter lead / flat side) | Negative terminal | Common return path; flat edge on package body identifies cathode for automated assembly orientation verification |
Key Features
| Feature | Design Value |
|---|---|
| Luminous intensity binning | Shipped in single brightness group per bag (e.g., R-group: 10–20 mcd), ensuring consistent visual output across production batches |
| Wavelength binning | Single dominant wavelength group per bag (e.g., 612–625 nm), eliminating visible color variation in multi-LED arrays |
| Stackable mechanical design | Center-to-center spacing of 2.54 mm enables direct end-to-end mounting without custom spacing fixtures or PCB real estate waste |
| Pulse & DC operation support | Validated for both continuous 30 mA DC and pulsed operation (tp = 10 μs, IFSM = 1 A), enabling use in multiplexed displays |
| High-temp reliability | Rated for −40°C to +100°C operating range with <10% luminous output shift at +85°C (Fig. 13), supporting industrial enclosure environments |
Applications
| Industrial Control Panel Indicators | Consumer Appliance Status Lights |
|---|---|
Use Scenario: Visual status feedback for power-on, fault, standby, or mode states on DIN-rail mounted PLC I/O modules and HMI front panels. IC Role / Device Role / Timing Role: Discrete optical indicator - no timing or logic function; driven directly by microcontroller GPIO or discrete transistor switch. Use Value: ±20° viewing angle ensures visibility within 45° operator line-of-sight; 4–20 mcd intensity remains legible under factory ambient lighting (≥500 lux). |
Use Scenario: Power, cycle completion, and error indication on washing machines, microwaves, and coffee makers with plastic fascia overlays. IC Role / Device Role / Timing Role: Passive light source - requires external current limiting; compatible with 3.3 V or 5 V MCU outputs via 220 Ω–1 kΩ series resistor. Use Value: Tinted diffused lens eliminates hot spots behind translucent buttons; 612–625 nm red meets IEC 60730 Class B color coding for critical alerts. |
| Test Equipment Front-Panel LEDs | Medical Device Status Indicators |
Use Scenario: Signal presence, measurement readiness, or calibration status on benchtop multimeters, oscilloscopes, and signal generators. IC Role / Device Role / Timing Role: Steady-state or pulsed visual marker - synchronized to internal state machine transitions via open-drain driver. Use Value: 450 K/W thermal resistance prevents thermal runaway during extended bench operation; 100 mW power dissipation limit aligns with PCB copper area constraints. |
Use Scenario: Non-critical operational status (e.g., "ready", "charging", "standby") on portable diagnostic tools and infusion pump interfaces. IC Role / Device Role / Timing Role: Human-readable optical element - not safety-critical; used alongside audible or tactile feedback per IEC 62304 Class B software requirements. Use Value: RoHS/halogen-free construction and −40°C to +100°C rating support sterilization cycles and storage in uncontrolled environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar red LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLUO2400 | No luminous intensity data provided in datasheet; unspecified min/typ/max values - likely lower-binned variant | Not suitable where guaranteed minimum brightness ≥4 mcd is required (e.g., outdoor-facing enclosures) | Select TLUO2401 when consistent minimum output is mandatory; TLUO2400 may suffice for cost-sensitive non-critical indicators |
| TLUR2401 | Same package and optics, but AlGaAs-on-GaAs technology yields higher efficiency: 15–35 mcd at 10 mA, VF = 1.8–2.2 V | Better suited for battery-powered devices needing longer runtime or lower drive voltage margin | Choose TLUR2401 for >2× luminous intensity or sub-2 V forward drop; TLUO2401 remains optimal for legacy 2–3 V design compatibility |
Compared with TLUO2400 and TLUR2401, the TLUO2401 offers verified mid-range brightness (4–20 mcd), precise red chromaticity (612–625 nm), and full documentation of all key parameters - making it the most balanced choice for industrial and medical UIs where specification traceability and batch consistency are prioritized over peak efficiency or lowest cost.
Availability
TLUO2401 is available at Aetrix Electronics and suitable for industrial control panels, consumer appliance interfaces, and test equipment front-panels requiring stable component supply, consistent luminous output, and RoHS-compliant manufacturing.
Supply support for TLUO2401 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 semiconductor manufacturer specializing in discrete components, sensors, and passive elements with emphasis on reliability, precision, and long-term product availability.
The TLUO2401 belongs to Vishay's standard miniplast LED series designed for general-purpose indicating applications - optimized for manufacturability, visual consistency, and compatibility with automated assembly processes across industrial and consumer markets.
FAQ
What is the exact dominant wavelength range specified for TLUO2401?
The TLUO2401 has a dominant wavelength range of 612 nm (minimum) to 625 nm (maximum) at 10 mA forward current, measured per IEC 62294. This narrow band ensures consistent red color reproduction across production lots and supports compliance with visual signaling standards requiring defined chromaticity coordinates. The TLUO2401's λd specification is fully documented in the "Optical and Electrical Characteristics" table on page 2 of Vishay document 83053.
Can TLUO2401 be operated continuously at 30 mA?
Yes, the TLUO2401 is rated for 30 mA DC forward current per its Absolute Maximum Ratings table. However, sustained operation at 30 mA increases junction temperature and accelerates lumen depreciation; Vishay recommends 20 mA for typical continuous-use applications to maintain >90% initial luminous output after 10,000 hours. Derating to 20 mA also keeps power dissipation within the 100 mW limit at ambient temperatures ≤55°C.
Does TLUO2401 have a built-in current-limiting resistor?
No, the TLUO2401 is a bare LED die in a miniplast package with no integrated current-limiting resistor. It requires an external series resistor or constant-current driver to limit forward current to ≤30 mA. For 5 V supply operation at 20 mA, a 150 Ω resistor (±5%) is typical; for 3.3 V, a 68 Ω resistor provides appropriate bias while accommodating the 2–3 V forward voltage range.
Is TLUO2401 compatible with lead-free reflow soldering processes?
The TLUO2401 is qualified for lead-free wave and hand soldering per J-STD-020, with maximum peak temperature of 260°C for 3 seconds at 2 mm from the package body. It is not rated for reflow soldering due to its through-hole construction and epoxy encapsulation - reflow would cause delamination or lens discoloration. Use selective soldering or traditional wave/hand methods only.
How is luminous intensity binned for TLUO2401 shipments?
TLUO2401 is shipped in single luminous intensity groups per packing unit - for example, R-group (10–20 mcd) - with IVmin/IVmax ≤ 0.5 within each bag. This ensures uniform brightness across all units in a given reel or tube, eliminating visible mismatch in multi-LED arrays. Brightness groups are defined in the "Luminous Intensity Classification" table (page 3), and the specific group code appears as "SelCode" on the fan-fold box label.
TLUO2401 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:
- 5mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- -
- Voltage - Forward (Vf) (Typ):
- 2V
- Current - Test:
- 10mA
- Viewing Angle:
- 40°
- Mounting Type:
- Through Hole
- Wavelength - Dominant:
- 619nm
- Wavelength - Peak:
- 630nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 1.8mm Miniplast
- Size / Dimension:
- -
TLUO2401 FAQ
1.How can I place an order for TLUO2401 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLUO2401 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 TLUO2401 reliable?
The price and inventory of TLUO2401 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLUO2401 is usually 5 days.
3.What payment methods are accepted for TLUO2401?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLUO2401 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLUO2401?
TLUO2401 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLUO2401 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 TLUO2401?
For technical support, including TLUO2401 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLUO2401 requirements.
6.How does Aetrix verify that TLUO2401 is sourced from the original manufacturer or authorized distributors?
All TLUO2401 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 TLUO2401 meets industry standards.
7.What is the process for return or replacement of TLUO2401?
All TLUO2401 units undergo pre-shipment inspection (PSI). If there is an issue with TLUO2401, 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 TLUO2401 part is unused and in its original packaging.
Return procedure for TLUO2401:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLUO2401 Tags
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150060GS75000
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150060VS75000
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151031VS06000
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150080BS75000
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