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Vishay Semiconductor Opto Division VLDK1235G-08
- Part No.:
- VLDK1235G-08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, Gull Wing
- Datasheet:
-
VLDK1235G-08.pdf
- Description:
- LED AMBER CLEAR 2SMD
- Quantity:
- Payment:
- Shipping:
Inventory:4,198
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Product details
Overview
VLDK1235G-08 from Vishay Semiconductors is an orange-red dome lens SMD LED using AlInGaP-on-Si chip technology, delivering 9000–35500 mcd luminous intensity at 50 mA forward current, with dominant wavelength 611–621 nm and ±11° viewing angle - deployed in high-visibility traffic signage and industrial indicator panels.
For engineers reviewing the VLDK1235G-08 datasheet, VLDK1235G-08 pinout, VLDK1235G-08 application, or VLDK1235G-08 equivalent, this page provides verified optical, electrical, thermal, and packaging data - including gullwing terminal configuration, JEDEC level 2a preconditioning compliance, and reflow-solderable 2.3 × 2.3 × 2.8 mm package dimensions.
Technical Context
This orange-red LED employs AlInGaP-on-Si die architecture to achieve high luminous intensity (up to 35,500 mcd) and stable spectral output across temperature. Its ±11° half-intensity angle enables focused beam control without secondary optics.
Rated for 70 mA DC forward current and 200 mW power dissipation, the device operates from −40 °C to +100 °C ambient, with thermal resistance junction-to-ambient of 325 K/W when mounted on ≥16 mm² PCB copper pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 9000–35,500 mcd at 50 mA - supports high-contrast visual signaling under ambient lighting |
| Dominant wavelength | 611–621 nm - orange-red chromaticity compliant with traffic signal color standards |
| Forward voltage | 1.9–2.7 V at 50 mA - compatible with standard 3.3 V and 5 V LED driver rails |
| Viewing angle | ±11° half-intensity - narrow beam ideal for directional indicators and discrete status lights |
| Ambient temp. range | −40 °C to +100 °C - qualified for automotive exterior and industrial outdoor environments |
| ESD withstand | 2 kV HBM per JESD22-A114-B - robust handling during automated assembly |
| Thermal resistance | 325 K/W (RthJA) - requires ≥16 mm² copper pad for thermal management at 70 mA |
Pinout & Package
Package: Gullwing SMD dome lens, 2.3 mm × 2.3 mm × 2.8 mm body with exposed copper thermal pad. Dimensions conform to IPC-7351 recommendations; solder pad layout optimized for JEDEC level 2a reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive DC input | Connected to current source; polarity-sensitive - reverse bias limited to 5 V short-term only |
| Cathode | Ground return path | Connected to system ground or current sink; marked by cathode notch on package edge |
Key Features
| Feature | Design Value |
|---|---|
| AlInGaP-on-Si chip | Enables high luminous flux and stable wavelength over temperature vs. traditional GaAsP |
| Gullwing leadform | Provides mechanical stability and self-centering during reflow; compatible with AOI inspection |
| Luminous intensity binning | IVmax/IVmin ≤ 1.6 per reel - ensures consistent brightness across production batches |
| JEDEC level 2a preconditioning | Qualifies for standard SMT lines without baking; moisture sensitivity level (MSL) = 2a |
| Reflow-compatible | Withstands peak 260 °C per J-STD-020 - eliminates need for special low-temp solder pastes |
Applications
| Traffic Signal Modules | Industrial Control Panels |
|---|---|
Use Scenario: Red/amber/orange-red status indication in roadside traffic controllers and pedestrian crossing units. IC Role / Device Role / Timing Role: Discrete visual emitter providing fail-safe human-readable state feedback independent of display subsystems. Use Value: High luminous intensity (>18,000 mcd typ.) ensures legibility in direct sunlight; ±11° beam minimizes crosstalk between adjacent signal elements. |
Use Scenario: Status and fault indication on PLC I/O modules, HMIs, and safety-rated panel interfaces. IC Role / Device Role / Timing Role: Standalone optical indicator driven directly from microcontroller GPIO or discrete transistor switch. Use Value: Wide operating temperature (−40 °C to +100 °C) supports uncooled enclosures; 2 kV ESD rating prevents field failures during maintenance. |
| Automotive Exterior Lighting | Public Information Displays |
Use Scenario: Side marker, parking light, or turn signal accent illumination in automotive aftermarket and commercial vehicle applications. IC Role / Device Role / Timing Role: Primary or auxiliary light source in sealed LED clusters requiring high reliability and color fidelity. Use Value: Orange-red dominant wavelength (611–621 nm) meets ECE R8 and SAE J578 chromaticity requirements; 70 mA DC rating enables pulse-width modulation dimming. |
Use Scenario: Backlighting for illuminated symbols, pushbutton legends, and advertising channel letters in transit hubs and retail environments. IC Role / Device Role / Timing Role: Surface-mounted discrete emitter integrated into custom light guides or diffuser assemblies. Use Value: Dome lens and gullwing leads simplify mechanical mounting and optical alignment; 2.3 × 2.3 mm footprint allows dense array layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar orange-red LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VLDK1235G | Same optical specs, but supplied in 6000 pcs/reel (vs. 1500 pcs/reel for -08); no tape leader/trailer length differentiation | Preferred for high-volume production runs where reel change frequency is minimized | Select VLDK1235G-08 for prototyping, low-MOQ builds, or space-constrained feeders requiring smaller reels |
| VLDR1235G-08 | Red variant (619–631 nm), 14,500 mcd typ., same package and drive conditions | Better suited for applications requiring strict red chromaticity (e.g., brake light simulation) | Choose VLDR1235G-08 when spectral purity >624 nm is required; VLDK1235G-08 preferred for amber-orange signaling |
Compared with VLDK1235G and VLDR1235G-08, the VLDK1235G-08 offers identical photometric performance in a smaller 1500-piece reel format - reducing feeder downtime and minimizing dry-pack storage volume while maintaining full compatibility with existing gullwing placement and reflow processes.
Availability
VLDK1235G-08 is available at Aetrix Electronics and suitable for traffic signal systems, industrial HMI panels, automotive exterior indicators, and public information displays requiring stable component supply across extended production cycles.
Supply support for VLDK1235G-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 designs and manufactures discrete semiconductors, including power MOSFETs, diodes, optoelectronics, and precision resistors - with emphasis on reliability, efficiency, and application-specific performance.
The VLDK1235G-08 belongs to Vishay's dome lens SMD LED product line, engineered for high-brightness, high-reliability visual indication in demanding industrial, transportation, and outdoor environments.
FAQ
What is the maximum continuous forward current for VLDK1235G-08?
The VLDK1235G-08 is rated for 70 mA DC forward current at ambient temperatures ≤60 °C. At higher ambient temperatures, derating is required per Figure 1 in the datasheet - e.g., 50 mA max at 85 °C ambient. Exceeding 70 mA risks accelerated lumen depreciation and thermal runaway. Always verify thermal pad layout and copper area per the 325 K/W RthJA specification when designing for sustained operation.
Does VLDK1235G-08 require baking before reflow soldering?
No - VLDK1235G-08 is preconditioned to JEDEC level 2a and shipped in dry-packed aluminum bags with MSL 2a labeling. It may be placed directly onto the PCB and reflowed per the J-STD-020 profile (peak 260 °C) without prior baking, provided the bag is opened and used within 672 hours at <30 °C / 60 % RH. If exposure exceeds this window, baking per Vishay's guidelines (e.g., 96 h at 60 °C / <5 % RH) is mandatory.
What is the meaning of the "-08" suffix in VLDK1235G-08?
The "-08" suffix denotes a specific taping and reel configuration: 1500 pieces per 178 mm diameter reel, with defined leader/trailer lengths (400 mm min. leader, 160 mm min. trailer), and terminal positioning per Drawing-No. 9.800-5137.01-4. This differs from the standard VLDK1235G (6000 pcs/reel) and ensures compatibility with compact pick-and-place feeders and low-volume production lines.
Can VLDK1235G-08 be driven in reverse polarity?
VLDK1235G-08 permits short-term reverse bias up to 5 V, as stated in the Absolute Maximum Ratings table. However, reverse conduction is not intended for functional operation - it applies only to transient conditions such as ESD events or brief miswiring during assembly. Continuous reverse voltage will cause irreversible degradation. Always observe anode/cathode orientation during layout and assembly; the cathode is marked by a notch on the package edge.
How is luminous intensity binned for VLDK1235G-08?
VLDK1235G-08 is intensity-binned per the HA group (28,000–35,500 mcd) or FB group (14,000–18,000 mcd), with IVmax/IVmin ≤ 1.6 within each reel. Each reel contains only one intensity group and one wavelength group - no mixing occurs. Binning data (SelCode) is encoded in the 2D barcode label on the reel; full bin traceability is maintained through Vishay's manufacturing lot system.
VLDK1235G-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- VLD.1235
- Package/Case:
- 2-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Color:
- Amber
- Configuration:
- Standard
- Lens Color:
- Colorless
- Lens Transparency:
- Clear
- Millicandela Rating:
- 18000mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 1.80mm Dia
- Voltage - Forward (Vf) (Typ):
- 2.3V
- Current - Test:
- 50mA
- Viewing Angle:
- 11°
- Mounting Type:
- Surface Mount
- Wavelength - Dominant:
- 616nm
- Wavelength - Peak:
- 622nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 2-SMD
- Size / Dimension:
- 2.30mm L x 2.30mm W
VLDK1235G-08 FAQ
1.How can I place an order for VLDK1235G-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLDK1235G-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 VLDK1235G-08 reliable?
The price and inventory of VLDK1235G-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLDK1235G-08 is usually 5 days.
3.What payment methods are accepted for VLDK1235G-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLDK1235G-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLDK1235G-08?
VLDK1235G-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLDK1235G-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 VLDK1235G-08?
For technical support, including VLDK1235G-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLDK1235G-08 requirements.
6.How does Aetrix verify that VLDK1235G-08 is sourced from the original manufacturer or authorized distributors?
All VLDK1235G-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 VLDK1235G-08 meets industry standards.
7.What is the process for return or replacement of VLDK1235G-08?
All VLDK1235G-08 units undergo pre-shipment inspection (PSI). If there is an issue with VLDK1235G-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 VLDK1235G-08 part is unused and in its original packaging.
Return procedure for VLDK1235G-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLDK1235G-08 Tags
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LTST-C281KRKT
Lite-On Inc.
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150060GS75000
Würth Elektronik
-
150060VS75000
Würth Elektronik
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150060AS75000
Würth Elektronik
-
150060YS75000
Würth Elektronik
-
150060SS75000
Würth Elektronik
-
150060BS75000
Würth Elektronik
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151031VS06000
Würth Elektronik
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151033RS03000
Würth Elektronik
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150080BS75000
Würth Elektronik
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150080GS75000
Würth Elektronik
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150141GS73100
Würth Elektronik
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