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Vishay Semiconductor Opto Division VLDK1535G-08
- Part No.:
- VLDK1535G-08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, Gull Wing
- Datasheet:
-
VLDK1535G-08.pdf
- Description:
- LED AMBER CLEAR 2SMD
- Quantity:
- Payment:
- Shipping:
Inventory:1,216
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Product details
Overview
VLDK1535G-08 from Vishay Semiconductors is an orange-red dome lens surface-mount LED using AlInGaP-on-Si chip technology, delivering 4500–14 000 mcd luminous intensity at 50 mA, with dominant wavelength 611–621 nm and ±22° viewing angle - deployed in traffic signal indicators and high-reliability exterior signage.
For engineers reviewing the VLDK1535G-08 datasheet, VLDK1535G-08 pinout, VLDK1535G-08 application, or VLDK1535G-08 equivalent, key selection criteria include forward voltage (1.9–2.7 V), thermal resistance (325 K/W), ESD rating (2 kV HBM), reflow compatibility per J-STD-020, and luminous intensity binning per packing unit.
Technical Context
This orange-red SMD LED employs AlInGaP-on-Si die architecture to achieve high luminous intensity and stable chromaticity across temperature. Its gullwing or reverse gullwing leadframe enables direct PCB mounting with controlled thermal path via exposed copper pad.
Optical performance is defined by ±22° half-intensity angle, 18 nm spectral bandwidth, and dominant wavelength shift ≤ ±8 nm over −40 °C to +100 °C ambient. Electrical behavior follows standard diode characteristics with 70 mA absolute max DC forward current and 5 V reverse voltage limit for short-term use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 4500–14 000 mcd at 50 mA - defines brightness range per binning group for consistent visual output in multi-LED arrays |
| Dominant wavelength | 611–621 nm - specifies orange-red chromaticity compliant with traffic signal color standards |
| Forward voltage | 1.9–2.7 V at 50 mA - determines series resistor sizing and power supply headroom in constant-current driver designs |
| Viewing angle | ±22° half-intensity - sets beam spread for targeted illumination without excessive light spill in directional signage |
| Thermal resistance | 325 K/W junction-to-ambient - indicates need for ≥16 mm² copper pad to sustain 70 mA continuous operation |
| ESD withstand | 2 kV HBM (JESD22-A114-B) - defines minimum handling precautions during assembly and test |
| Reflow compatible | J-STD-020 Level 2a - supports standard lead-free reflow profiles up to 260 °C peak |
Pinout & Package
Package: 2.3 × 2.3 × 2.6 mm gullwing SMD dome lens LED with exposed copper thermal pad; cathode marked by notch and pin ID on package top.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal | Connects to constant-current source; polarity must be observed to avoid reverse conduction damage |
| Cathode | Negative terminal | Connected to ground or current-sink driver; marked by notch and labeled "CATH" on tape orientation diagram |
Key Features
| Feature | Design Value |
|---|---|
| AlInGaP-on-Si chip technology | Enables high luminous flux and stable color point over temperature vs. traditional GaAsP LEDs |
| Luminous intensity ratio ≤ 1.6 | Ensures uniform brightness across units within same reel, critical for consistent panel appearance |
| Preconditioned per JEDEC Level 2a | Guarantees moisture sensitivity level compliance for safe reflow without baking under standard factory conditions |
| ESD rating 2 kV HBM | Reduces risk of field failure due to handling-induced gate oxide damage in production environments |
| Dome lens optical design | Provides focused ±22° beam with minimal Lambertian scatter, improving contrast in outdoor ambient lighting |
Applications
| Traffic Signal Modules | Industrial Control Panels |
|---|---|
Use Scenario: Red/orange-red status indication in vehicular traffic light heads operating outdoors under solar loading and wide temperature swings. IC Role / Device Role / Timing Role: Discrete visible-light emitter providing human-readable state feedback; no timing or control function. Use Value: High luminous intensity (up to 14 000 mcd) ensures visibility at >100 m distance under daylight; ±22° beam confines light to lens aperture, minimizing crosstalk between adjacent signal elements. |
Use Scenario: Operator-facing status indicators on factory HMIs, PLC enclosures, and safety-rated machinery panels. IC Role / Device Role / Timing Role: Standalone optical indicator driven by microcontroller GPIO or discrete transistor switch. Use Value: Orange-red chromaticity (611–621 nm) meets IEC 60417-5009 warning color requirements; 100 °C max operating temperature supports deployment near heat-generating industrial equipment. |
| Outdoor Advertising Displays | Automotive Exterior Signage |
Use Scenario: Pixel elements in large-format LED message signs mounted on highway gantries and commercial billboards. IC Role / Device Role / Timing Role: Primary light source in modular pixel clusters; driven by constant-current LED drivers. Use Value: Stable dominant wavelength shift (< ±8 nm over −40 to +100 °C) prevents color drift in uncontrolled ambient environments; 70 mA max forward current enables pulse-width modulation dimming without thermal derating. |
Use Scenario: Side-marker or parking lamp indicators on automotive body control modules requiring AEC-Q101 alignment. IC Role / Device Role / Timing Role: Non-safety-critical visual indicator; electrically isolated from CAN bus or LIN networks. Use Value: RoHS- and halogen-free construction satisfies automotive material compliance; gullwing leads support automated optical inspection (AOI) and provide mechanical robustness against vibration-induced solder joint fatigue. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar orange-red LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VLDR1535G-08 | Red emission (619–631 nm), lower min. luminous intensity (3550 mcd) | Better suited for red-only traffic signals where CIE chromaticity coordinates require stricter red purity | Select when red chromaticity compliance (e.g., ITE/SAE Class 1) is mandatory over orange-red hue |
| VLDY1535G-08 | Yellow emission (583–595 nm), identical luminous intensity range and package | Used in amber warning systems where yellow meets regulatory color coding (e.g., hazard lights, construction zone alerts) | Choose for applications requiring standardized amber rather than orange-red spectral output |
Compared with VLDK1535G-08, VLDR1535G-08 shifts chromaticity toward deeper red while reducing minimum intensity, whereas VLDY1535G-08 moves to yellow - both retain identical thermal, mechanical, and drive characteristics, enabling drop-in replacement only when color specification permits.
Availability
VLDK1535G-08 is available at Aetrix Electronics and suitable for traffic signaling, industrial control panels, and outdoor advertising displays requiring stable component supply, consistent luminous intensity binning, and extended-temperature reliability.
Supply support for VLDK1535G-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.
VLDK1535G-08 belongs to Vishay's VLD.1535 dome lens SMD LED product line, engineered for high-brightness, high-reliability visible-light indication in demanding outdoor and industrial environments.
FAQ
What is the maximum continuous forward current for VLDK1535G-08?
The absolute maximum DC forward current for VLDK1535G-08 is 70 mA at ambient temperatures ≤ 60 °C. Operation above this value requires thermal derating per Fig. 1 in the datasheet; exceeding 70 mA risks irreversible junction degradation and luminous flux decay. The VLDK1535G-08 must be mounted on a PCB with ≥16 mm² copper pad to maintain thermal resistance at 325 K/W.
Does VLDK1535G-08 support lead-free reflow soldering?
Yes, VLDK1535G-08 is qualified for lead-free reflow per J-STD-020, with a peak temperature tolerance of 260 °C for ≤100 s. The recommended profile includes ramp-up ≤3 °C/s, time above 217 °C ≤30 s, and cooling rate ≤6 °C/s. The device is preconditioned to JEDEC Level 2a, meaning it can be processed without baking if used within 672 hours of dry-pack opening at <30 °C/60 % RH.
How is luminous intensity binned for VLDK1535G-08?
VLDK1535G-08 is categorized into luminous intensity groups (DA–FA) per packing unit, with IVmax/IVmin ≤ 1.6 ensuring tight brightness matching. Each reel contains only one intensity group - mixing groups is prohibited to guarantee uniform appearance in multi-LED assemblies. The VLDK1535G-08 datasheet lists DA (4500–5600 mcd), DB (5600–7100 mcd), EA (7100–9000 mcd), and FA (11 200–14 000 mcd) as available bins.
What is the viewing angle specification for VLDK1535G-08?
VLDK1535G-08 has a ±22° angle of half intensity, meaning luminous intensity drops to 50 % of its axial value at ±22° off-center. This directional beam pattern is achieved via the molded dome lens and is measured at 50 mA drive current. The VLDK1535G-08 does not exhibit Lambertian emission; its narrow angular distribution improves contrast in bright ambient conditions and reduces optical crosstalk in dense LED arrays.
Can VLDK1535G-08 be operated in reverse bias?
VLDK1535G-08 permits reverse voltage up to 5 V only for short-term applications, as stated in the Absolute Maximum Ratings table. Continuous reverse bias will cause rapid degradation of the AlInGaP die and permanent reduction in luminous output. The VLDK1535G-08 must be installed with correct polarity - anode to positive, cathode to negative - and protected by series blocking diodes in AC-driven or bidirectional circuits.
VLDK1535G-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- VLD.1535
- Package/Case:
- 2-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Color:
- Amber
- Configuration:
- Independent
- Lens Color:
- Colorless
- Lens Transparency:
- Clear
- Millicandela Rating:
- 8000mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 1.80mm Dia
- Voltage - Forward (Vf) (Typ):
- 2.25V
- Current - Test:
- 50mA
- Viewing Angle:
- 44°
- 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
VLDK1535G-08 FAQ
1.How can I place an order for VLDK1535G-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLDK1535G-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 VLDK1535G-08 reliable?
The price and inventory of VLDK1535G-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLDK1535G-08 is usually 5 days.
3.What payment methods are accepted for VLDK1535G-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLDK1535G-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLDK1535G-08?
VLDK1535G-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLDK1535G-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 VLDK1535G-08?
For technical support, including VLDK1535G-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLDK1535G-08 requirements.
6.How does Aetrix verify that VLDK1535G-08 is sourced from the original manufacturer or authorized distributors?
All VLDK1535G-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 VLDK1535G-08 meets industry standards.
7.What is the process for return or replacement of VLDK1535G-08?
All VLDK1535G-08 units undergo pre-shipment inspection (PSI). If there is an issue with VLDK1535G-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 VLDK1535G-08 part is unused and in its original packaging.
Return procedure for VLDK1535G-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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