Vishay Semiconductor Opto Division VLDB1232RG-08
- Part No.:
- VLDB1232RG-08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, Gull Wing
- Datasheet:
-
VLDB1232RG-08.pdf
- Description:
- LED BLUE 2SMD
- Quantity:
- Payment:

- Shipping:

Inventory:1,630
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Product details
Overview
VLDB1232RG-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 is designed for high-visibility indicator and backlighting applications requiring narrow ±9° viewing angle and robust reflow compatibility.
For engineers reviewing the VLDB1232RG-08 datasheet, VLDB1232RG-08 pinout, VLDB1232RG-08 application, or VLDB1232RG-08 equivalent, this page provides verified optical, electrical, thermal, and packaging specifications - including luminous intensity binning, JEDEC level 2a moisture sensitivity, JESD22-A114-B ESD rating (2 kV), and gullwing/reverse gullwing terminal configuration - to support reliable integration into traffic signals, smoke detectors, and illuminated UIs.
Technical Context
The VLDB1232RG-08 is a monochromatic blue LED optimized for directional visibility, featuring a molded dome lens that achieves ±9° half-intensity angle and peak wavelength at 460 nm. Its InGaN-on-sapphire die enables high radiant intensity (62 mW/sr) and stable spectral output across temperature.
Rated for 30 mA DC forward current and 100 mW power dissipation, it operates from –40 °C to +100 °C ambient, with thermal resistance junction-to-ambient of 400 K/W on ≥16 mm² PCB pad. Reverse voltage tolerance is limited to 5 V for short-term use only.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 1800–3500 mcd at 20 mA - defines brightness consistency within binned reels for uniform visual signaling |
| Dominant wavelength | 458–472 nm - ensures consistent blue color perception in human-vision-critical applications |
| Forward voltage | 2.6–3.4 V at 20 mA - determines series resistor selection and driver compliance for 3.3 V/5 V systems |
| Viewing angle | ±9° half-intensity - enables focused illumination without secondary optics in panel indicators |
| ESD withstand | 2 kV HBM per JESD22-A114-B - confirms handling robustness during SMT assembly and board handling |
| Moisture sensitivity | JEDEC level 2a - mandates dry-pack storage and ≤672 h factory floor exposure before reflow |
| Thermal resistance | 400 K/W (junction-to-ambient) - requires ≥16 mm² copper pad for sustained 30 mA operation |
Pinout & Package
VLDB1232RG-08 is supplied in a 2.3 × 2.3 × 2.8 mm gullwing SMD package with exposed copper thermal pad. Two mechanical variants exist: gullwing (anode/cathode on same side) and reverse gullwing (anode/cathode on opposite sides); VLDB1232RG-08 uses the gullwing configuration per drawing 6.544-5383.02-4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive DC input | Connected to current-limiting resistor or constant-current driver output; polarity-sensitive for forward bias |
| Cathode | Ground reference | Must be tied to system ground or low-side switch node; reverse connection limits to short-term use only |
| Exposed copper pad | Thermal path | Requires soldered connection to ≥16 mm² PCB copper area to maintain Tj ≤ 100 °C at 30 mA |
Key Features
| Feature | Design Value |
|---|---|
| InGaN-on-sapphire die | Delivers high luminous flux density and wavelength stability over temperature and lifetime |
| Dome lens encapsulation | Provides ±9° beam control without external collimators - reduces BOM count in space-constrained UIs |
| Luminous intensity binning | IVmax/IVmin ≤ 1.6 per reel ensures consistent brightness across production units in multi-LED arrays |
| Reflow-compatible construction | Qualified per J-STD-020 - supports standard lead-free reflow profiles up to 260 °C peak |
| ESD-hardened structure | 2 kV HBM rating minimizes field failure risk during automated handling and board-level testing |
Applications
| Traffic Signal Indicators | Smoke Detector Status Lights |
|---|---|
Use Scenario: Red/green/blue status indication in outdoor pedestrian crossing controllers and vehicle signal heads. IC Role / Device Role / Timing Role: Visual signaling element driven by microcontroller GPIO or constant-current LED driver. Use Value: ±9° narrow beam prevents crosstalk between adjacent signal elements; 3500 mcd output remains visible under direct sunlight. |
Use Scenario: Power-on and alarm confirmation lighting in residential and commercial smoke detectors. IC Role / Device Role / Timing Role: Low-duty-cycle pulsed indicator powered from battery-backed supply. Use Value: High 3500 mcd intensity ensures visibility in low-light bedroom environments; JEDEC level 2a handling simplifies manufacturing logistics. |
| Audio/Video Equipment Backlighting | Industrial Panel Indicator Symbols |
Use Scenario: Illumination of pushbutton symbols and display bezels in AV receivers and studio monitors. IC Role / Device Role / Timing Role: Constant-current biased emitter for user interface feedback. Use Value: Clear untinted dome lens preserves color fidelity; 2.6–3.4 V VF range aligns with common 3.3 V rail regulation. |
Use Scenario: Status marking on industrial HMIs, PLC I/O modules, and safety-rated control panels. IC Role / Device Role / Timing Role: High-reliability visual indicator operating continuously or intermittently in harsh environments. Use Value: –40 °C to +100 °C operating range supports deployment in unconditioned enclosures; 400 K/W RthJA enables thermal design with minimal copper area. |
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 | Identical optical/electrical specs and package; differs only in part-numbering suffix (-R vs -RG) | No functional difference - both are blue InGaN devices with same 458–472 nm λd and 1800–3500 mcd IV | Select VLDB1232R-08 when ordering single-color blue variant without ambiguity in suffix interpretation |
| TLU1232B-08 | Same 2.3 × 2.3 mm gullwing footprint but lower 1200–2400 mcd intensity and wider ±12° viewing angle | Suitable for less demanding visibility requirements where wider dispersion is acceptable | Choose TLU1232B-08 only if reduced brightness and broader beam meet system optical budget |
Compared with VLDB1232RG-08, VLDB1232R-08 offers identical performance in a functionally equivalent package, while TLU1232B-08 trades intensity and beam control for cost and angular flexibility - making VLDB1232RG-08 optimal for high-contrast, long-distance, or sunlight-readable indicator designs.
Availability
VLDB1232RG-08 is available at Aetrix Electronics and suitable for traffic signal indicators, smoke detector status lights, and audio/video equipment backlighting requiring stable component supply, consistent luminous intensity binning, and JEDEC-compliant moisture handling.
Supply support for VLDB1232RG-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 supplier of discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power MOSFETs, and precision resistors for industrial and automotive markets.
The VLDB1232RG-08 belongs to Vishay's dome-lens power LED product line, engineered for high-brightness, narrow-view-angle visual signaling in safety-critical and outdoor-visible applications.
FAQ
What is the maximum continuous forward current rating for VLDB1232RG-08?
The absolute maximum DC forward current for VLDB1232RG-08 is 30 mA at ambient temperatures ≤ 60 °C. Exceeding this value risks accelerated lumen depreciation and junction temperature violation beyond the 100 °C limit. Derating is required above 60 °C per Figure 1 in the datasheet, and thermal design must ensure RthJA ≤ 400 K/W with ≥16 mm² copper pad.
Does VLDB1232RG-08 have a defined pin-compatible alternative in the same package?
VLDB1232RG-08 shares identical mechanical dimensions, gullwing terminal layout (drawing 6.544-5383.02-4), and solder pad recommendations with VLDB1232R-08. Both parts use the same 2.3 × 2.3 × 2.8 mm package, anode/cathode pin assignment, and thermal pad configuration - enabling direct substitution without PCB modification.
What is the luminous intensity binning structure for VLDB1232RG-08?
VLDB1232RG-08 is shipped in brightness-binned reels where each reel contains only one luminous intensity group (e.g., BA: 1800–2240 mcd or CA: 2800–3550 mcd). The IVmax/IVmin ratio per reel is guaranteed ≤ 1.6, ensuring uniform appearance in multi-LED arrays. Single brightness groups are not orderable separately to maintain supply continuity.
Is VLDB1232RG-08 suitable for outdoor applications exposed to UV and moisture?
VLDB1232RG-08 features a clear, untinted epoxy dome lens rated for operation from –40 °C to +100 °C, with moisture sensitivity level 2a and preconditioning per JEDEC. While not IP-rated, its molded package provides inherent resistance to humidity ingress; full outdoor suitability requires system-level sealing and UV-filtering optics per IEC 62471 photobiological safety compliance.
What reflow profile should be used for VLDB1232RG-08?
VLDB1232RG-08 is qualified for lead-free reflow per J-STD-020, with peak temperature ≤ 260 °C for ≤ 100 s, time above 217 °C ≤ 30 s, and ramp rates ≤ 3 °C/s (up) and ≤ 6 °C/s (down). The recommended profile matches Vishay's Figure 14, and post-reflow inspection must verify solder joint integrity on the exposed thermal pad and gullwing leads.
VLDB1232RG-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:
- Obsolete
- 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
VLDB1232RG-08 FAQ
1.How can I place an order for VLDB1232RG-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLDB1232RG-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 VLDB1232RG-08 reliable?
The price and inventory of VLDB1232RG-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLDB1232RG-08 is usually 5 days.
3.What payment methods are accepted for VLDB1232RG-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLDB1232RG-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLDB1232RG-08?
VLDB1232RG-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLDB1232RG-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 VLDB1232RG-08?
For technical support, including VLDB1232RG-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLDB1232RG-08 requirements.
6.How does Aetrix verify that VLDB1232RG-08 is sourced from the original manufacturer or authorized distributors?
All VLDB1232RG-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 VLDB1232RG-08 meets industry standards.
7.What is the process for return or replacement of VLDB1232RG-08?
All VLDB1232RG-08 units undergo pre-shipment inspection (PSI). If there is an issue with VLDB1232RG-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 VLDB1232RG-08 part is unused and in its original packaging.
Return procedure for VLDB1232RG-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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