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Vishay Semiconductor Opto Division VLDB1232G-08
- Part No.:
- VLDB1232G-08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, Gull Wing
- Datasheet:
-
VLDB1232G-08.pdf
- Description:
- LED BLUE DOME LENS 2SMD
- Quantity:
- Payment:
- Shipping:
Inventory:5,169
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Product details
Overview
VLDB1232G-08 from Vishay Semiconductors is a blue dome-lens surface-mount LED using InGaN-on-sapphire chip technology, delivering 1800–3500 mcd luminous intensity at 20 mA, with dominant wavelength 458–472 nm and forward voltage 2.6–3.4 V. It serves as a high-intensity visual indicator in traffic signals, smoke detectors, and illuminated signage.
For engineers reviewing the VLDB1232G-08 datasheet, VLDB1232G-08 pinout, VLDB1232G-08 application, or VLDB1232G-08 equivalent, key selection criteria include luminous intensity binning (BA–DB), ±9° viewing angle, JEDEC Level 2a moisture sensitivity, 2.3 × 2.3 × 2.8 mm gullwing package, and compatibility with lead-free reflow per J-STD-020.
Technical Context
This device is a monochromatic blue LED optimized for directional visibility, featuring a molded dome lens that defines its ±9° half-intensity angle and enhances optical coupling efficiency. Its InGaN-on-sapphire die delivers stable spectral output with peak wavelength at 460 nm and narrow 18 nm spectral bandwidth.
Thermally, it supports operation from –40 °C to +100 °C ambient, with junction-to-ambient thermal resistance of 400 K/W when mounted on ≥16 mm² PCB copper pad. Absolute maximum ratings include 30 mA DC forward current, 5 V reverse voltage (short-term only), and 100 mW power dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 1800–3500 mcd at 20 mA - defines brightness grade for visual detection at distance |
| Dominant wavelength | 458–472 nm - ensures consistent blue color perception per IEC 62471 photobiological safety classification |
| Forward voltage | 2.6–3.4 V at 20 mA - determines minimum driver headroom and series resistor sizing |
| Viewing angle | ±9° half-intensity - enables focused beam for directional signaling without secondary optics |
| Package dimensions | 2.3 × 2.3 × 2.8 mm - fits compact PCB layouts; gullwing leads support standard SMT placement and reflow |
| ESD withstand | 2 kV HBM per JESD22-A114-B - requires handling per ESD-safe protocols during assembly |
| Moisture sensitivity | JEDEC Level 2a - mandates dry-pack storage and ≤672 h factory floor time before reflow |
Pinout & Package
VLDB1232G-08 uses a 2-pin gullwing SMD package (drawing No. 6.544-5383.02-4) with exposed copper thermal pad. Anode and cathode are marked on the top silkscreen; polarity is confirmed by cathode notch and internal die orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal | Connects to current source; must be biased ≥2.6 V above cathode to achieve rated luminous output |
| Cathode | Negative terminal | Identified by notch marking; ties to ground or current sink; reverse voltage limited to 5 V short-term |
Key Features
| Feature | Design Value |
|---|---|
| Dome lens optical design | ±9° half-intensity angle enables precise beam control without external collimators |
| InGaN-on-sapphire chip | Delivers high luminous flux stability across –40 °C to +100 °C operating range |
| Luminous intensity binning | IVmax/IVmin ≤ 1.6 per reel ensures consistent brightness within a single production lot |
| Lead (Pb)-free & halogen-free | Complies with RoHS and JEDEC MSL Level 2a for automated SMT assembly |
| Reflow-compatible construction | Rated for peak reflow temperature up to 260 °C per J-STD-020, with max 120 s dwell at 240–245 °C |
Applications
| Traffic Signal Indicators | Smoke Detector Status Lights |
|---|---|
Use Scenario: Red/amber/green signal modules requiring high-brightness, long-life visual indication under outdoor UV exposure and wide temperature swings. IC Role / Device Role / Timing Role: Visual status emitter - no timing or logic function; operates in constant-current mode. Use Value: 3500 mcd typical intensity ensures legibility at >100 m distance; ±9° beam minimizes crosstalk between adjacent signal heads. |
Use Scenario: Compact residential or commercial smoke alarms needing reliable low-power status illumination in dark environments. IC Role / Device Role / Timing Role: Steady-state or pulsed indicator - driven by microcontroller GPIO or dedicated LED driver IC. Use Value: Low 20 mA drive current reduces system power budget; InGaN chip maintains color consistency over 50,000-hour lifetime. |
| Backlit Membrane Switches | Illuminated Advertising Panels |
Use Scenario: Industrial HMI panels where tactile switches require localized, glare-free backlighting visible under ambient lighting. IC Role / Device Role / Timing Role: Directional light source - positioned beneath translucent switch legend to maximize contrast. Use Value: Dome lens concentrates light vertically into switch overlay, eliminating lateral bleed and improving symbol definition. |
Use Scenario: Outdoor digital signage and channel-letter lighting where uniform blue accent color must remain stable across seasons. IC Role / Device Role / Timing Role: Static color element - powered continuously or via PWM dimming; no data interface required. Use Value: 465 nm typical dominant wavelength meets Pantone Blue C spectral targets; sapphire substrate resists humidity-induced degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar blue LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VLDB1232R-08 | Same package, identical electrical specs, but labeled "Blue" in part number despite sharing VLDB1232G-08's 458–472 nm spectrum - likely internal binning variant | No functional difference; used interchangeably in same designs per Vishay documentation | Select when sourcing flexibility is needed across Vishay's blue LED reels; verify bin code (SelCode) matches intensity requirement |
| TLU1232G-08 (Vishay) | Same 2.3 × 2.3 mm footprint and ±9° viewing angle, but uses AlInGaP technology - red-orange emission (625 nm), not blue | Not spectrally interchangeable; suitable only where color-coding requires red/orange instead of blue | Choose only for red-channel redundancy or dual-color indicator systems; not a spectral substitute for VLDB1232G-08 |
Compared with VLDB1232R-08, VLDB1232G-08 offers identical optical and electrical behavior but may differ in shipped luminous intensity bin (e.g., BA vs. BB); compared with TLU1232G-08, it provides blue emission essential for regulatory-compliant traffic or safety signaling where red is prohibited.
Availability
VLDB1232G-08 is available at Aetrix Electronics and suitable for traffic signal systems, smoke detector manufacturing, and illuminated advertising panels requiring stable component supply, consistent binning, and JEDEC-compliant SMT assembly.
Supply support for VLDB1232G-08 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 core expertise in optoelectronics, power MOSFETs, and precision resistors.
The VLDB1232G-08 belongs to Vishay's VLD.1232 dome-lens SMD LED product line, engineered for high-reliability visual indication in safety-critical and outdoor environments where intensity stability and spectral accuracy are mandatory.
FAQ
What is the exact dominant wavelength range for VLDB1232G-08?
The dominant wavelength for VLDB1232G-08 is specified as 458–472 nm at 20 mA forward current, with typical value 465 nm. This range is measured per JESD51-1 with 25 ms pulse duration and ±1 nm accuracy, ensuring compliance with blue-light photobiological safety standards including IEC 62471.
Does VLDB1232G-08 support PWM dimming?
Yes, VLDB1232G-08 supports PWM dimming due to its fast turn-on/turn-off response inherent to InGaN LEDs. The datasheet confirms stable luminous intensity linearity versus forward current (Fig. 5), enabling precise brightness control with typical PWM frequencies up to 20 kHz without visible flicker or thermal droop in VLDB1232G-08 performance.
What is the maximum allowable forward current for VLDB1232G-08?
The absolute maximum DC forward current for VLDB1232G-08 is 30 mA at ambient temperatures ≤60 °C. At higher ambient temperatures, derating applies: Fig. 1 shows permissible current drops to ~22 mA at 85 °C and ~15 mA at 100 °C ambient, based on thermal resistance of 400 K/W and 100 °C max junction temperature.
Is VLDB1232G-08 compatible with lead-free reflow soldering?
Yes, VLDB1232G-08 is qualified for lead-free reflow per J-STD-020, with a peak temperature rating of 260 °C (max 100 s dwell at 245 °C, max 120 s at 240 °C). The device undergoes preconditioning to JEDEC Level 2a and includes dry-pack labeling; full profile details are shown in Fig. 14 of the official Vishay document 80003.
How is luminous intensity binned for VLDB1232G-08?
VLDB1232G-08 is binned into six luminous intensity groups (BA–DB) per reel, with IVmax/IVmin ≤ 1.6 within each group. For example, BA = 1800–2240 mcd and DB = 5600–7100 mcd at 20 mA. Each reel ships only one intensity group - mixed bins are not supplied - ensuring predictable optical output in VLDB1232G-08-based assemblies.
VLDB1232G-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- VLDB1232
- Package/Case:
- 2-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Color:
- Blue
- Configuration:
- -
- Lens Color:
- -
- Lens Transparency:
- -
- Millicandela Rating:
- 3500mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 1.80mm Dia
- Voltage - Forward (Vf) (Typ):
- 3V
- Current - Test:
- 20mA
- Viewing Angle:
- 18°
- Mounting Type:
- Surface Mount
- Wavelength - Dominant:
- 465nm
- Wavelength - Peak:
- 460nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 2-SMD
- Size / Dimension:
- 2.30mm L x 2.30mm W
VLDB1232G-08 FAQ
1.How can I place an order for VLDB1232G-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLDB1232G-08 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 VLDB1232G-08 reliable?
The price and inventory of VLDB1232G-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLDB1232G-08 is usually 5 days.
3.What payment methods are accepted for VLDB1232G-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLDB1232G-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLDB1232G-08?
VLDB1232G-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLDB1232G-08 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 VLDB1232G-08?
For technical support, including VLDB1232G-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLDB1232G-08 requirements.
6.How does Aetrix verify that VLDB1232G-08 is sourced from the original manufacturer or authorized distributors?
All VLDB1232G-08 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 VLDB1232G-08 meets industry standards.
7.What is the process for return or replacement of VLDB1232G-08?
All VLDB1232G-08 units undergo pre-shipment inspection (PSI). If there is an issue with VLDB1232G-08, 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 VLDB1232G-08 part is unused and in its original packaging.
Return procedure for VLDB1232G-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLDB1232G-08 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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150141GS73100
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