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Vishay Semiconductor Opto Division VLMY31J1K2-GS18
- Part No.:
- VLMY31J1K2-GS18
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, J-Lead
- Datasheet:
-
VLMY31J1K2-GS18.pdf
- Description:
- LED YELLOW CLEAR 2PLCC SMD
- Quantity:
- Payment:
- Shipping:
Inventory:4,221
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Product details
Overview
VLMY31J1K2-GS18 from Vishay Semiconductors is a yellow surface-mount LED in PLCC-2 package, designed for narrow-brightness and color-bin applications with luminous intensity of 4.5–11.2 mcd at 10 mA, dominant wavelength 581–594 nm, and ±60° viewing angle. It serves as an indicator or backlight in telecommunication, office, and AV equipment requiring stable optical output and IR-reflow compatibility.
For engineers reviewing the VLMY31J1K2-GS18 datasheet, VLMY31J1K2-GS18 pinout, VLMY31J1K2-GS18 application, or VLMY31J1K2-GS18 equivalent, key selection criteria include luminous intensity binning (J1 group), GaAsP-on-GaP yellow emission, PLCC-2 mechanical footprint, JEDEC level 2a preconditioning, and ESD tolerance up to 2 kV.
Technical Context
This device uses GaAsP-on-GaP semiconductor technology to emit yellow light with dominant wavelength tightly binned across six color groups (581–594 nm) and luminous intensity categorized into six groups (J1–L2). Each reel ships only one brightness and one wavelength group - no mixing - ensuring consistency for optical calibration-critical designs.
Rated for 20 mA DC forward current and 6 V reverse voltage, it operates from −40 °C to +100 °C ambient, with thermal resistance junction-to-ambient of 400 K/W on ≥16 mm² PCB pad. Its non-diffused lens enables efficient coupling to light pipes and LCD backlights, while low-profile PLCC-2 packaging supports automated placement and lead-free reflow per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 4.5–11.2 mcd at 10 mA - defines brightness bin J1 for consistent visual matching across panels |
| Dominant wavelength | 581–594 nm - yellow emission optimized for human eye sensitivity and color-coded status indication |
| Viewing angle | ±60° - wide beam for uniform illumination in indicator and backlight roles without secondary optics |
| Forward voltage | 2.1–2.8 V at 20 mA - enables direct drive from 3.3 V or 5 V logic rails with minimal series resistance |
| ESD withstand | 2 kV HBM - sufficient for handling in standard assembly environments without special grounding protocols |
| Junction temp. max. | 100 °C - sets thermal derating limit for continuous operation in sealed enclosures or high-density layouts |
| Thermal resistance | 400 K/W - requires ≥16 mm² copper pad for safe 20 mA operation at 60 °C ambient |
Pinout & Package
Package: PLCC-2 (Plastic Leaded Chip Carrier, 2-terminal), low-profile SMD with white thermoplastic body, clear epoxy lens, and integrated reflector. Dimensions: 3.5 mm × 2.8 mm × 1.75 mm (L × W × H), with 2.2 mm center-to-center lead spacing and 0.9 mm lead width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive terminal for forward bias | Connected to internal P-layer; must be driven at ≥2.1 V relative to cathode to achieve rated luminance |
| Cathode (K) | Negative terminal for forward bias | Connected to internal N-layer; polarity-sensitive - reverse connection beyond 6 V risks permanent damage |
Key Features
| Feature | Design Value |
|---|---|
| Luminous intensity ratio ≤ 1.6 | Ensures <16% variation between max/min intensity within same reel - critical for uniform panel backlighting |
| Non-diffused lens | Enables >85% coupling efficiency into light guides and edge-lit LCD backlights without diffuser loss |
| JEDEC level 2a preconditioning | Validates moisture sensitivity for Pb-free reflow - allows 672 h storage at ≤30 °C/60% RH before baking |
| EIA/ICE standard package | Guarantees compatibility with industry-standard pick-and-place nozzles and tape feeders (8 mm blister tape) |
| IR reflow compatible | Withstands peak 260 °C for ≤10 s - supports high-volume manufacturing without thermal degradation |
Applications
| Telecom Indicator | AV Equipment Backlight |
|---|---|
|
Use Scenario: Status indication on telephone handsets and fax machines where color-coded alerts (e.g., line busy, message waiting) require precise yellow hue and consistent brightness. IC Role / Device Role / Timing Role: Optical emitter providing human-visible feedback; no timing function - driven by static or pulsed GPIO. Use Value: Tight 581–594 nm wavelength binning ensures identical perceived yellow across units; J1 intensity grouping eliminates visible mismatch in multi-LED arrays. |
Use Scenario: Backlighting front-panel buttons and displays in audio receivers and video players, where uniform illumination under varying ambient light is essential. IC Role / Device Role / Timing Role: Constant-current-driven light source; no signal processing or modulation capability - functions as passive optical element. Use Value: ±60° viewing angle delivers even illumination across 8–12 mm button areas; non-diffused lens couples efficiently to molded light pipes without added optics. |
| Office Equipment Symbol Light | LCD Flat Backlight |
|
Use Scenario: Illumination of power, paper-jam, or network-status symbols on printers, scanners, and copiers operating in mixed-temperature office environments. IC Role / Device Role / Timing Role: Steady-state visual indicator powered from 3.3 V system rail via current-limiting resistor. Use Value: −40 to +100 °C operating range ensures reliability during printer warm-up cycles and unheated storage; 2 kV ESD rating prevents failure during service technician handling. |
Use Scenario: Edge-lit backlight for monochrome or segmented LCDs in industrial HMIs, test equipment, and medical devices requiring long-life, low-power indicators. IC Role / Device Role / Timing Role: Primary light source coupled to acrylic light guide; no PWM dimming support - brightness controlled via analog current. Use Value: Low 56 mW power dissipation minimizes heat buildup behind LCD glass; PLCC-2 footprint allows dense linear arrays along display edges without thermal crowding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar yellow LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VLMY31K1L2-GS08 | Higher luminous intensity (7.1–18 mcd), K1/L2 bin - ~2× brighter than VLMY31J1K2-GS18 at same drive current | Better suited for high-ambient-light environments (e.g., outdoor kiosks); may require current reduction to match J1 brightness | Select when higher visibility is needed and optical calibration allows wider intensity tolerance |
| OSRAM LYT670-J1K2 | Same luminous intensity bin (J1K2), identical optical specs, but uses different substrate and packaging process | Drop-in replacement in PLCC-2 footprint; validated for same reflow profiles and moisture sensitivity level | Choose for dual-sourcing assurance where Vishay supply constraints exist - identical optical performance and board layout |
Compared with VLMY31J1K2-GS18, VLMY31K1L2-GS08 offers higher brightness at the cost of tighter bin control, while OSRAM LYT670-J1K2 provides identical photometric performance with alternate manufacturing provenance - both require no PCB changes but differ in supply chain risk profile and intensity tolerance requirements.
Availability
VLMY31J1K2-GS18 is available at Aetrix Electronics and suitable for telecom indicator systems, office equipment status lighting, and LCD flat backlighting requiring stable component supply, consistent yellow chromaticity, and JEDEC-compliant moisture handling.
Supply support for VLMY31J1K2-GS18 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 Intertechnology is a global manufacturer of discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power MOSFETs, and precision resistors for industrial and automotive markets.
The VLMY31 series belongs to Vishay's standard SMD LED product line, engineered for applications demanding narrow brightness and color selection - especially where visual consistency across production batches is critical.
FAQ
What is the luminous intensity range of the VLMY31J1K2-GS18?
The VLMY31J1K2-GS18 has a luminous intensity range of 4.5–11.2 mcd at 10 mA forward current, corresponding to the J1 brightness bin. This tight grouping ensures minimal visual variation across LEDs on the same reel, making VLMY31J1K2-GS18 ideal for applications requiring matched brightness in multi-LED arrays or panels.
What does the 'J1K2' suffix in VLMY31J1K2-GS18 indicate?
The 'J1' denotes the luminous intensity bin (4.5–5.6 mcd), and 'K2' specifies the dominant wavelength bin (587–590 nm) within the yellow spectrum. These codes ensure that every VLMY31J1K2-GS18 reel contains only LEDs meeting both J1 intensity and K2 wavelength criteria - no mixing across bins occurs per reel.
Can VLMY31J1K2-GS18 be used in reflow soldering processes?
Yes, VLMY31J1K2-GS18 is qualified for lead-free IR reflow per J-STD-020, with a maximum peak temperature of 260 °C for ≤10 s. It is also compatible with vapor-phase and wave soldering per CECC 00802. Preconditioning to JEDEC level 2a ensures moisture sensitivity is managed for reliable reflow yield.
What is the recommended PCB pad layout for VLMY31J1K2-GS18?
Vishay specifies a minimum 16 mm² copper pad area for thermal management. The recommended footprint matches PLCC-2 dimensions: 3.5 mm × 2.8 mm body, 2.2 mm lead center spacing, with solder mask openings sized to expose full pad area. This layout maintains thermal resistance ≤400 K/W and prevents overheating at 20 mA continuous drive.
Is VLMY31J1K2-GS18 suitable for backlighting LCD segments?
Yes, VLMY31J1K2-GS18 is explicitly designed for flat backlighting of LCDs, switches, and symbols. Its non-diffused lens, ±60° viewing angle, and low-profile PLCC-2 package enable efficient coupling to light guides and uniform illumination across segmented displays without additional diffusers or optics.
VLMY31J1K2-GS18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- VLM.3
- Package/Case:
- 2-SMD, J-Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Color:
- Yellow
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Clear
- Millicandela Rating:
- 8mcd
- Lens Style:
- Round with Flat Top
- Lens Size:
- 2.40mm Dia
- Voltage - Forward (Vf) (Typ):
- 2.1V
- Current - Test:
- 10mA
- Viewing Angle:
- 120°
- Mounting Type:
- Surface Mount
- Wavelength - Dominant:
- 588nm
- Wavelength - Peak:
- 590nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 2-PLCC
- Size / Dimension:
- 3.00mm L x 2.80mm W
VLMY31J1K2-GS18 FAQ
1.How can I place an order for VLMY31J1K2-GS18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLMY31J1K2-GS18 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 VLMY31J1K2-GS18 reliable?
The price and inventory of VLMY31J1K2-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLMY31J1K2-GS18 is usually 5 days.
3.What payment methods are accepted for VLMY31J1K2-GS18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLMY31J1K2-GS18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLMY31J1K2-GS18?
VLMY31J1K2-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLMY31J1K2-GS18 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 VLMY31J1K2-GS18?
For technical support, including VLMY31J1K2-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLMY31J1K2-GS18 requirements.
6.How does Aetrix verify that VLMY31J1K2-GS18 is sourced from the original manufacturer or authorized distributors?
All VLMY31J1K2-GS18 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 VLMY31J1K2-GS18 meets industry standards.
7.What is the process for return or replacement of VLMY31J1K2-GS18?
All VLMY31J1K2-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with VLMY31J1K2-GS18, 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 VLMY31J1K2-GS18 part is unused and in its original packaging.
Return procedure for VLMY31J1K2-GS18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLMY31J1K2-GS18 Tags
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LTST-C281KRKT
Lite-On Inc.
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150060GS75000
Würth Elektronik
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150060VS75000
Würth Elektronik
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150060AS75000
Würth Elektronik
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150060YS75000
Würth Elektronik
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150060SS75000
Würth Elektronik
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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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