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Vishay Semiconductor Opto Division VLDR1535G-08
- Part No.:
- VLDR1535G-08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, Gull Wing
- Datasheet:
-
VLDR1535G-08.pdf
- Description:
- LED RED CLEAR 2SMD
- Quantity:
- Payment:
- Shipping:
Inventory:3,404
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Product details
Overview
VLDR1535G-08 from Vishay Semiconductors is a red dome-lens surface-mount LED using AlInGaP-on-Si chip technology, delivering 3550–11,200 mcd luminous intensity at 50 mA, with dominant wavelength 619–631 nm and ±22° viewing angle - optimized for high-visibility indicator and signage applications.
For engineers reviewing the VLDR1535G-08 datasheet, VLDR1535G-08 pinout, VLDR1535G-08 application, or VLDR1535G-08 equivalent, key selection criteria include luminous intensity binning (CB group), forward voltage range (1.9–2.7 V), thermal resistance (325 K/W), reflow compatibility per J-STD-020, and gullwing/reverse gullwing package variants.
Technical Context
This device belongs to Vishay's VLD.1535 power LED family, fabricated with AlInGaP-on-Si die for high DC forward current capability up to 70 mA and stable operation from –40 °C to +100 °C ambient. Its optical design features a molded clear dome lens enabling ±22° half-intensity beam angle and high luminous flux density.
The VLDR1535G-08 is rated for 200 mW power dissipation and exhibits 325 K/W junction-to-ambient thermal resistance when mounted on a PCB pad >16 mm². It meets JEDEC Level 2a preconditioning and supports lead-free reflow soldering with peak temperature up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 3550–11,200 mcd @ 50 mA - defines brightness range across binned lots; CB group (3550–4500 mcd) applies to standard reels |
| Dominant wavelength | 619–631 nm - places output in red spectral band, suitable for color-critical signaling and human-perceptible indicators |
| Forward voltage | 1.9–2.7 V @ 50 mA - determines driver compliance margin and power loss in series-string configurations |
| Viewing angle | ±22° - enables focused illumination for directional indicators without secondary optics |
| Max DC forward current | 70 mA @ Tamb ≤ 60 °C - sets absolute drive limit for continuous operation; derates above 60 °C per Fig. 1 |
| ESD withstand | 2 kV HBM (JESD22-A114-B) - informs handling requirements and board-level protection needs |
| Thermal resistance | 325 K/W - quantifies thermal path efficiency; requires ≥16 mm² copper pad for rated performance |
Pinout & Package
VLDR1535G-08 is offered in gullwing (VLD.1535G..) and reverse gullwing (VLD.1535R..) SMD packages, both measuring 2.3 × 2.3 × 2.6 mm with exposed copper thermal pad. The gullwing variant has anode and cathode leads extending outward from bottom edge; reverse gullwing bends leads under the body. Both use standard IPC-7351 solder pad layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive terminal | Connects to current source; polarity must be observed to avoid reverse conduction (limited to short-term only) |
| Cathode | Negative terminal | Connects to ground or current sink; marked by notch or chamfer on package per drawing 6.544-5408.01-4 |
| Exposed copper pad | Thermal and mechanical anchor | Must be connected to ≥16 mm² internal/external copper for thermal management and mechanical reliability |
Key Features
| Feature | Design Value |
|---|---|
| AlInGaP-on-Si chip technology | Enables high luminous intensity and stable red emission without GaAs substrate limitations |
| Gullwing/reverse gullwing SMD form | Supports automated placement and dual-side PCB assembly; compatible with standard reflow profiles |
| Luminous intensity ratio ≤ 1.6 | Ensures consistent brightness within a reel (IVmax/IVmin ≤ 1.6), reducing post-assembly sorting |
| JEDEC Level 2a preconditioning | Validates moisture sensitivity level (MSL 2a), enabling safe handling up to 672 hours after bag opening |
| Clear untinted dome lens | Provides high light extraction and controlled beam pattern without external collimation optics |
Applications
| Traffic Signal Modules | Industrial Panel Indicators |
|---|---|
Use Scenario: Red status indication in outdoor traffic signal heads operating continuously under wide ambient temperature swings (–40 °C to +100 °C). IC Role / Device Role / Timing Role: Light-emitting element providing high-visibility red output compliant with ITE/SAE chromaticity standards. Use Value: 619–631 nm dominant wavelength and 3550–11,200 mcd intensity ensure regulatory-compliant luminance and color fidelity at distance. |
Use Scenario: Front-panel power-on and fault-status indication on industrial PLCs and motor drives. IC Role / Device Role / Timing Role: Visual feedback component driven directly from microcontroller GPIO or discrete transistor switch. Use Value: ±22° viewing angle delivers sharp, localized illumination; 70 mA max current supports PWM dimming without thermal throttling. |
| Automotive Interior Lighting | Consumer Appliance Backlighting |
Use Scenario: Illumination of HVAC control symbols and gear selector markings in automotive cabins. IC Role / Device Role / Timing Role: Primary light source for symbol backlighting, operating in pulsed or DC mode. Use Value: Clear dome lens and 2.3 × 2.3 mm footprint enable tight integration behind thin overlays; RoHS/halogen-free construction meets automotive material specs. |
Use Scenario: Status and function-key backlighting in microwave ovens, washing machines, and audio equipment. IC Role / Device Role / Timing Role: Low-power, long-life illumination source driven from 3.3 V or 5 V logic rails via current-limiting resistor. Use Value: 1.9–2.7 V forward voltage allows direct interface with common MCU I/O; MSL 2a rating simplifies factory SMT logistics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar red LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VLDS1535G-08 | Super red emission (626–637 nm), lower min. luminous intensity (2800 mcd), same package and VF range | Better suited for applications requiring higher chromaticity separation from amber/orange LEDs | Select when spectral purity near 630 nm is prioritized over raw intensity; not interchangeable where red hue is specified |
| VLDK1535G-08 | Orange-red emission (611–621 nm), higher min. intensity (4500 mcd), identical thermal and packaging specs | Preferred for warm-red or amber-adjacent signaling where color blending is required | Choose for applications needing wider luminous intensity range (4500–14,000 mcd) and slightly shorter wavelength than VLDR1535G-08 |
Compared with VLDR1535G-08, VLDS1535G-08 offers longer-wavelength super red output ideal for high-contrast traffic signals, while VLDK1535G-08 provides brighter orange-red emission better matched to warm ambient lighting - all share identical thermal, mechanical, and soldering characteristics.
Availability
VLDR1535G-08 is available at Aetrix Electronics and suitable for traffic signal modules, industrial panel indicators, automotive interior lighting, and consumer appliance backlighting requiring stable component supply, consistent binning, and MSL 2a handling compliance.
Supply support for VLDR1535G-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, diodes, and precision resistors.
The VLD.1535 series was developed as a high-reliability, high-intensity SMD LED platform for demanding visual indication applications - emphasizing luminous consistency, thermal robustness, and reflow process compatibility.
FAQ
What is the maximum continuous forward current for VLDR1535G-08?
The VLDR1535G-08 supports a maximum DC forward current of 70 mA when ambient temperature remains at or below 60 °C. Above this temperature, current must be linearly derated per Figure 1 in the datasheet, reaching zero at 125 °C junction temperature. Operation beyond these limits risks accelerated lumen depreciation and thermal runaway.
Does VLDR1535G-08 have a defined moisture sensitivity level (MSL)?
Yes, VLDR1535G-08 is rated MSL 2a per JEDEC J-STD-020. This means the device may be stored unopened for 12 months at <40 °C and <90% RH, and once opened, must be mounted within 672 hours at factory conditions (<30 °C / 60% RH) or stored at <10% RH. A JESD22-A112 Level 2a label is included on the dry bag.
What does the "-08" suffix indicate in VLDR1535G-08?
The "-08" suffix in VLDR1535G-08 denotes the specific taping and reel configuration: 1500 pieces per 178 mm reel, with EIA-481-compliant carrier tape, leader/trailer lengths per drawing 9.800-5137.01-4 (gullwing) or 9.800-5138.01-4 (reverse gullwing), and Vishay-standard bar code labeling including batch date code and binning data.
Can VLDR1535G-08 be used in reverse-biased mode?
Reverse voltage operation of VLDR1535G-08 is permitted only for short-term applications, with absolute maximum reverse voltage limited to 5 V. Prolonged or repeated reverse bias risks irreversible degradation of the AlInGaP die and increased leakage current. It is not designed as a bidirectional or AC-driven device.
How is luminous intensity binned for VLDR1535G-08?
VLDR1535G-08 is binned into luminous intensity groups per Table "LUMINOUS INTENSITY CLASSIFICATION": standard reels ship exclusively CB group (3550–4500 mcd). Each reel contains only one intensity group and one dominant wavelength group - no mixing occurs. Single-group orders are not available to ensure supply continuity and manufacturing efficiency.
VLDR1535G-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:
- Red
- Configuration:
- Independent
- Lens Color:
- Colorless
- Lens Transparency:
- Clear
- Millicandela Rating:
- 6500mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 1.80mm Dia
- Voltage - Forward (Vf) (Typ):
- 2.2V
- Current - Test:
- 50mA
- Viewing Angle:
- 44°
- Mounting Type:
- Surface Mount
- Wavelength - Dominant:
- 624nm
- Wavelength - Peak:
- 632nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 2-SMD
- Size / Dimension:
- 2.30mm L x 2.30mm W
VLDR1535G-08 FAQ
1.How can I place an order for VLDR1535G-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLDR1535G-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 VLDR1535G-08 reliable?
The price and inventory of VLDR1535G-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLDR1535G-08 is usually 5 days.
3.What payment methods are accepted for VLDR1535G-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLDR1535G-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLDR1535G-08?
VLDR1535G-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLDR1535G-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 VLDR1535G-08?
For technical support, including VLDR1535G-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLDR1535G-08 requirements.
6.How does Aetrix verify that VLDR1535G-08 is sourced from the original manufacturer or authorized distributors?
All VLDR1535G-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 VLDR1535G-08 meets industry standards.
7.What is the process for return or replacement of VLDR1535G-08?
All VLDR1535G-08 units undergo pre-shipment inspection (PSI). If there is an issue with VLDR1535G-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 VLDR1535G-08 part is unused and in its original packaging.
Return procedure for VLDR1535G-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLDR1535G-08 Tags
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