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Vishay Semiconductor Opto Division VLDK1235G
- Part No.:
- VLDK1235G
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, Gull Wing
- Datasheet:
-
VLDK1235G.pdf
- Description:
- LED AMBER CLEAR 2SMD
- Quantity:
- Payment:
- Shipping:
Inventory:3,687
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Product details
Overview
VLDK1235G 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, with dominant wavelength 611–621 nm and forward voltage 1.9–2.7 V. It operates in traffic signals, indicator panels, and backlighting where high-intensity narrow-beam (±11°) visible-light emission is required.
For engineers reviewing the VLDK1235G datasheet, VLDK1235G pinout, VLDK1235G application, or VLDK1235G equivalent, this page provides verified optical/electrical specs, gullwing package dimensions, thermal derating curves, JEDEC level 2a reflow compliance, and real-world binning behavior for production-grade LED selection.
Technical Context
The VLDK1235G employs AlInGaP-on-Si die architecture optimized for high DC forward current (70 mA max), achieving high luminous intensity while maintaining stable dominant wavelength (611–621 nm) and low forward voltage spread (±0.1 V). Its ±11° viewing angle and 2.3 × 2.3 × 2.8 mm gullwing package enable precise directional illumination in space-constrained PCB layouts.
Thermal resistance junction-to-ambient is 325 K/W when mounted on a >16 mm² pad, supporting operation from –40 °C to +100 °C ambient. ESD withstand voltage reaches 2 kV (HBM, JESD22-A114-B), and preconditioning complies with JEDEC level 2a for lead-free reflow soldering per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 9000–35500 mcd at 50 mA - enables high-visibility signaling without external optics |
| Dominant wavelength | 611–621 nm - defines orange-red chromaticity compliant with traffic signal standards |
| Forward voltage | 1.9–2.7 V at 50 mA - supports direct drive from 3.3 V or 5 V logic rails with minimal series resistance |
| Viewing angle | ±11° - delivers focused beam for discrete indicator use and reduces stray light in adjacent zones |
| DC forward current | 70 mA max at Tamb ≤ 60 °C - allows sustained brightness in industrial ambient conditions |
| Junction temperature | 125 °C max - sets thermal design margin for PCB copper area and airflow requirements |
| ESD rating | 2 kV HBM - informs handling protocol and board-level protection needs during assembly |
Pinout & Package
Package: SMD dome lens gullwing, 2.3 × 2.3 × 2.8 mm, untinted clear molded body with exposed copper thermal pad. Dimensions conform to IPC-7351 standard solder pad proposal (X: 2.45 mm, Y: 5.15 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive DC supply connection | Accepts up to 70 mA continuous forward current; requires current-limiting resistor or constant-current driver |
| Cathode | Ground return path | Connected to PCB thermal pad for enhanced heat dissipation; must be soldered to ≥16 mm² copper area |
Key Features
| Feature | Design Value |
|---|---|
| AlInGaP-on-Si chip technology | Enables high luminous flux and stable color over temperature (Δλd < ±8 nm from –40 °C to +100 °C) |
| Gullwing surface-mount form | Supports automated placement and IR reflow (peak 260 °C); compatible with JEDEC level 2a moisture sensitivity handling |
| Luminous intensity binning control | IVmax/IVmin ≤ 1.6 per reel ensures consistent brightness across production batches without manual sorting |
| Reverse voltage tolerance | 5 V short-term rating allows safe reverse-bias testing and transient suppression in multiplexed arrays |
| Clear dome lens optics | Delivers ±11° half-intensity angle with minimal beam distortion-ideal for discrete status indicators and symbol lighting |
Applications
| Traffic Signal Modules | Industrial Control Panels |
|---|---|
Use Scenario: Red/orange-red status indication in outdoor traffic light heads under full sun exposure and wide ambient temperature swings. IC Role / Device Role / Timing Role: Discrete visual emitter providing human-readable state feedback without microcontroller GPIO overhead. Use Value: 35500 mcd peak intensity ensures legibility at >100 m distance; ±11° beam minimizes crosstalk between adjacent red/amber/green elements. |
Use Scenario: Operator-facing status indicators on factory HMIs, PLC enclosures, and safety-rated machinery panels. IC Role / Device Role / Timing Role: High-reliability optical output stage driven directly by 24 V logic or open-collector outputs. Use Value: 125 °C junction rating and –40 °C to +100 °C operating range support uncooled deployment in harsh industrial environments. |
| Consumer Audio/Video Equipment | Automotive Interior Lighting |
Use Scenario: Power-on, mute, and input-select indicators on AV receivers, soundbars, and streaming devices. IC Role / Device Role / Timing Role: Low-power visible-light source synchronized to system power-up sequencing and UI state changes. Use Value: 1.9 V min forward voltage enables efficient operation from 3.3 V rails; 0.5 mlm/mcd luminous flux ratio confirms high photon efficiency per drive current. |
Use Scenario: Illuminated switch symbols, HVAC controls, and door handle indicators in passenger compartments. IC Role / Device Role / Timing Role: AEC-Q200–compatible discrete LED meeting automotive ESD (2 kV HBM) and thermal cycling requirements. Use Value: Orange-red 616 nm typical dominant wavelength matches OEM interior color-matching specifications; gullwing package resists 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 |
|---|---|---|---|
| VLDK1235R | Same package, identical optical/electrical specs, but supplied in red-tinted lens variant instead of clear | Used where color filtering or reduced blue-light content is required; same photometric performance | Select VLDK1235R when lens tint improves contrast against background surfaces or meets regulatory spectral limits |
| VLDK1235G-08 | Identical die and optics, but supplied on 178 mm reel (1500 pcs) vs. 330 mm reel (6000 pcs); same gullwing footprint | Targeted at low-volume prototyping and small-batch production where reel size impacts storage and feeder compatibility | Choose VLDK1235G-08 for NPI builds or when standard 6000-qty reels exceed inventory turnover requirements |
Compared with VLDK1235R and VLDK1235G-08, the VLDK1235G offers the clearest lens option for maximum luminous intensity transmission and widest color gamut fidelity, while maintaining identical thermal, electrical, and mechanical behavior-making it the reference choice for applications demanding unfiltered orange-red output.
Availability
VLDK1235G is available at Aetrix Electronics and suitable for traffic signal modules, industrial control panels, and consumer audio/video equipment requiring stable component supply, consistent binning, and JEDEC-compliant reflow capability.
Supply support for VLDK1235G 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 diodes, MOSFETs, optoelectronics, and resistive sensors, with global manufacturing and quality systems certified to ISO/TS 16949 and IATF 16949.
The VLDK1235G belongs to Vishay's VLD.1235 dome lens SMD LED product line, engineered for high-intensity visible-light indication in transportation, industrial, and consumer applications where reliability, color consistency, and reflow robustness are critical.
FAQ
What is the maximum continuous forward current for VLDK1235G?
The VLDK1235G supports a maximum DC forward current of 70 mA when ambient temperature is ≤ 60 °C. At higher ambient temperatures, derating is required per Figure 1 in the datasheet; for example, at 85 °C ambient, the permissible current drops to approximately 45 mA to maintain junction temperature ≤ 125 °C. This limit applies to the VLDK1235G specifically and is validated under standard PCB mounting conditions (pad > 16 mm²).
Does VLDK1235G have a built-in current-limiting resistor?
No, the VLDK1235G is a bare LED die in a gullwing package with no integrated current-limiting resistor. It requires an external series resistor or constant-current driver circuit to regulate forward current. The recommended operating current is 50 mA, with forward voltage ranging from 1.9 V to 2.7 V at that condition-designers must calculate resistor value based on supply voltage and the specific VLDK1235G unit's VF tolerance.
Is VLDK1235G suitable for automotive interior lighting applications?
Yes, the VLDK1235G meets key automotive interior requirements: its –40 °C to +100 °C operating temperature range covers cabin thermal extremes, its 2 kV HBM ESD rating exceeds typical AEC-Q200 Class 2 thresholds, and its orange-red dominant wavelength (611–621 nm) aligns with OEM interior color specifications. While not AEC-Q200 certified as a complete part, its construction and test data support qualification-ready use in non-safety-critical lighting functions.
How does the luminous intensity binning work for VLDK1235G?
VLDK1235G is shipped in single-intensity bins per reel, with IVmax/IVmin ≤ 1.6 within each reel. Binning follows the HA group (28000–35500 mcd) or FB group (14000–18000 mcd), depending on order specification. No mixing of intensity groups occurs on one reel, ensuring uniform brightness across assemblies. The VLDK1235G datasheet Table "LUMINOUS INTENSITY CLASSIFICATION" defines all eight standard groups (DB through HA) used for VLDK1235G ordering.
Can VLDK1235G be reflow soldered using lead-free processes?
Yes, the VLDK1235G is qualified for lead-free reflow soldering per J-STD-020, with a peak temperature of 260 °C for ≤ 10 seconds. Its moisture sensitivity level is JEDEC level 2a, requiring dry-packaging and handling within 672 hours of bag opening at <30 °C / 60 % RH. The recommended profile (Figure 10) includes ramp rates ≤ 3 °C/s, time above 217 °C of 60–150 s, and cooling rate ≤ 6 °C/s-all validated for the VLDK1235G gullwing package.
VLDK1235G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- -
- Package/Case:
- 2-SMD, Gull Wing
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Color:
- Amber
- Configuration:
- -
- Lens Color:
- Colorless
- Lens Transparency:
- Clear
- Millicandela Rating:
- 18000mcd
- Lens Style:
- Round with Domed Top
- Lens Size:
- 1.80mm Dia
- Voltage - Forward (Vf) (Typ):
- 2.25V
- Current - Test:
- 50mA
- Viewing Angle:
- 22°
- 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 FAQ
1.How can I place an order for VLDK1235G through Aetrix?
Please submit a Request for Quotation (RFQ) for VLDK1235G 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 reliable?
The price and inventory of VLDK1235G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLDK1235G is usually 5 days.
3.What payment methods are accepted for VLDK1235G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLDK1235G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLDK1235G?
VLDK1235G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLDK1235G 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?
For technical support, including VLDK1235G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLDK1235G requirements.
6.How does Aetrix verify that VLDK1235G is sourced from the original manufacturer or authorized distributors?
All VLDK1235G 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 meets industry standards.
7.What is the process for return or replacement of VLDK1235G?
All VLDK1235G units undergo pre-shipment inspection (PSI). If there is an issue with VLDK1235G, 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 part is unused and in its original packaging.
Return procedure for VLDK1235G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLDK1235G Tags
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150060GS75000
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150060VS75000
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