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Vishay Semiconductor Opto Division VLDB1232R-08
- Part No.:
- VLDB1232R-08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, Z-Bend
- Datasheet:
-
VLDB1232R-08.pdf
- Description:
- LED BLUE 2SMD BOTTOM ENT
- Quantity:
- Payment:
- Shipping:
Inventory:2,479
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Product details
Overview
VLDB1232R-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 signaling applications requiring narrow ±9° viewing angle and robust reflow compatibility.
For engineers reviewing the VLDB1232R-08 datasheet, VLDB1232R-08 pinout, VLDB1232R-08 application, or VLDB1232R-08 equivalent, this page provides verified optical/electrical specs, gullwing vs. reverse gullwing package distinction, binning classification, ESD rating (2 kV), and JEDEC level 2a moisture sensitivity handling guidance.
Technical Context
The VLDB1232R-08 is a monochromatic blue LED with a molded dome lens enabling ±9° half-intensity beam angle and high directionality. Its InGaN-on-sapphire die delivers stable radiant intensity (62 mW/sr typ.) and narrow spectral bandwidth (18 nm) centered at 460 nm peak wavelength.
It operates within a DC forward current limit of 30 mA and junction temperature up to 100 °C, with thermal resistance junction-to-ambient rated at 400 K/W when mounted on ≥16 mm² PCB copper 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 range for visibility in ambient-light-critical indicators |
| Dominant wavelength | 458–472 nm - specifies blue spectral output compliant with traffic signal and safety signage standards |
| Forward voltage | 2.6–3.4 V at 20 mA - determines series resistor selection and power supply headroom requirements |
| Viewing angle | ±9° half-intensity - enables focused beam for directional signaling without secondary optics |
| ESD withstand | 2 kV HBM per JESD22-A114-B - informs ESD protection design in final assembly handling |
| Ambient temp. range | −40 to +100 °C - supports operation in automotive exterior and industrial control environments |
| Thermal resistance | 400 K/W - guides PCB copper area allocation for thermal management at 30 mA max drive |
Pinout & Package
VLDB1232R-08 uses a reverse gullwing SMD package (2.3 × 2.3 × 2.8 mm) with exposed copper thermal pad. The package is optimized for reflow soldering per J-STD-020 and features cathode identification via chamfered corner and anode/cathode polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal | Connected to current-limiting resistor; requires 2.6–3.4 V above cathode to emit light |
| Cathode | Negative terminal | Ground reference; identified by chamfered corner on package body per drawing 6.544-5391.02-4 |
Key Features
| Feature | Design Value |
|---|---|
| InGaN-on-sapphire die | Enables high luminous flux stability and low wavelength shift over temperature (Δλd ≤ ±4 nm from −40 to +100 °C) |
| Reverse gullwing leadform | Provides mechanical robustness and coplanarity for automated placement; compatible with IPC-7351 solder pad proposal |
| Luminous intensity binning | Shipped in single brightness group per reel (e.g., BA: 1800–2240 mcd); eliminates intensity variation across production batches |
| JEDEC level 2a preconditioning | Confirms moisture sensitivity compliance; mandates baking if exposed >672 h at <30 °C / 60 % RH after bag opening |
| Clear untinted dome lens | Maximizes light extraction efficiency and maintains color purity without diffusion or tinting artifacts |
Applications
| Traffic Signal Indicators | Smoke Detector Status Lights |
|---|---|
Use Scenario: Red/blue status indication in pedestrian crossing signals and vehicle stop-light modules. IC Role / Device Role / Timing Role: Visual emitter providing human-readable state feedback under daylight and low-light conditions. Use Value: ±9° narrow beam ensures high on-axis intensity (>3500 mcd) for long-distance visibility without optical collimation. |
Use Scenario: Power-on and alarm confirmation in residential and commercial smoke detectors. IC Role / Device Role / Timing Role: Low-power visual alert source synchronized with sensor logic outputs. Use Value: 20 mA drive current and 2.6–3.4 V VF enable direct microcontroller GPIO driving with minimal external components. |
| Audio/Video Equipment Indicators | Backlit Membrane Switches |
Use Scenario: Power, mute, and input-selection status on AV receivers and studio monitors. IC Role / Device Role / Timing Role: High-contrast blue indicator visible against dark front panels and ambient lighting. Use Value: 458–472 nm dominant wavelength delivers saturated blue output meeting IEC 62471 photobiological safety Class 1 limits. |
Use Scenario: Uniform backlighting for tactile membrane keypads in medical devices and industrial HMIs. IC Role / Device Role / Timing Role: Directional light source placed behind translucent overlay to illuminate symbols. Use Value: Dome lens geometry and ±9° beam angle provide sharp edge definition and minimal lateral bleed between adjacent keys. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar blue SMD LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VLDB1232G-08 | Same package and electrical specs, but blue color binning differs (G suffix denotes standard blue; R suffix indicates same blue variant per Parts Table) | No functional difference - "G" and "R" denote identical blue chromaticity per Vishay documentation (both 458–472 nm, InGaN/sapphire) | Select VLDB1232G-08 only if legacy BOM references G-suffix; VLDB1232R-08 is functionally identical and interchangeable |
| TLR-320-08 | Similar 2.3×2.3 mm reverse gullwing package, but uses AlInGaP die (625 nm red), not InGaN blue; VF = 2.0–2.4 V | Not a color-matched alternative - intended for red indicator applications, not blue | Choose only for red-emitting designs; not suitable as spectral or photometric substitute for VLDB1232R-08 |
Compared with VLDB1232G-08, VLDB1232R-08 offers identical optical and electrical performance with no design impact; compared with TLR-320-08, it provides blue emission essential for color-coded signaling where red would violate functional intent or regulatory requirements.
Availability
VLDB1232R-08 is available at Aetrix Electronics and suitable for traffic signal systems, smoke detector manufacturing, and audio/video indicator assemblies requiring stable component supply, consistent luminous intensity binning, and JEDEC-compliant moisture handling.
Supply support for VLDB1232R-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 VLDB1232R-08 belongs to Vishay's dome-lens SMD LED product line, engineered for high-reliability visual indication in transportation, safety, and consumer electronics where narrow-beam intensity and color consistency are critical.
FAQ
What is the maximum continuous forward current for VLDB1232R-08?
The absolute maximum DC forward current for VLDB1232R-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 Fig. 1 in the datasheet, where permissible current drops to ~22 mA at 85 °C ambient.
Does VLDB1232R-08 have a built-in current-limiting resistor?
No, VLDB1232R-08 is a bare LED die in a reverse gullwing package and does not include an integrated current-limiting resistor. External series resistance must be calculated based on system supply voltage and the device's forward voltage range (2.6–3.4 V at 20 mA) to ensure stable 20 mA operation and prevent thermal runaway.
How is the cathode identified on VLDB1232R-08?
The cathode of VLDB1232R-08 is identified by a chamfered corner on the package body, as shown in Drawing-No. 6.544-5391.02-4. Additionally, polarity markings (anode/cathode) are laser-etched on the top surface of the device, and the cathode terminal connects to the shorter lead in the reverse gullwing configuration.
Is VLDB1232R-08 RoHS and halogen-free compliant?
Yes, VLDB1232R-08 is RoHS-compliant and halogen-free, as confirmed by Vishay's material categorization documentation (www.vishay.com/doc?99912). The "K" and "L" symbols on the standard bar code label indicate lead-free terminations and halogen-free construction, respectively.
What is the recommended reflow profile for VLDB1232R-08?
The recommended Pb-free reflow profile for VLDB1232R-08 follows J-STD-020, with peak temperature ≤260 °C (max 100 s dwell), time above 217 °C ≤30 s, ramp-up ≤3 °C/s, and ramp-down ≤6 °C/s. Preconditioning per JEDEC level 2a is mandatory, and moisture exposure after bag opening must be controlled per the dry packing guidelines.
VLDB1232R-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- VLDB1232
- Package/Case:
- 2-SMD, Z-Bend
- 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, Bottom Entry
- Wavelength - Dominant:
- 465nm
- Wavelength - Peak:
- 460nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 2-SMD
- Size / Dimension:
- 2.30mm L x 2.30mm W
VLDB1232R-08 FAQ
1.How can I place an order for VLDB1232R-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLDB1232R-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 VLDB1232R-08 reliable?
The price and inventory of VLDB1232R-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLDB1232R-08 is usually 5 days.
3.What payment methods are accepted for VLDB1232R-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLDB1232R-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLDB1232R-08?
VLDB1232R-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLDB1232R-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 VLDB1232R-08?
For technical support, including VLDB1232R-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLDB1232R-08 requirements.
6.How does Aetrix verify that VLDB1232R-08 is sourced from the original manufacturer or authorized distributors?
All VLDB1232R-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 VLDB1232R-08 meets industry standards.
7.What is the process for return or replacement of VLDB1232R-08?
All VLDB1232R-08 units undergo pre-shipment inspection (PSI). If there is an issue with VLDB1232R-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 VLDB1232R-08 part is unused and in its original packaging.
Return procedure for VLDB1232R-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLDB1232R-08 Tags
-
LTST-C281KRKT
Lite-On Inc.
-
150060GS75000
Würth Elektronik
-
150060VS75000
Würth Elektronik
-
150060AS75000
Würth Elektronik
-
150060YS75000
Würth Elektronik
-
150060SS75000
Würth Elektronik
-
150060BS75000
Würth Elektronik
-
151031VS06000
Würth Elektronik
-
151033RS03000
Würth Elektronik
-
150080BS75000
Würth Elektronik
-
150080GS75000
Würth Elektronik
-
150141GS73100
Würth Elektronik
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