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Vishay Semiconductor Opto Division VLMG31K1L2-GS18
- Part No.:
- VLMG31K1L2-GS18
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, J-Lead
- Datasheet:
-
VLMG31K1L2-GS18.pdf
- Description:
- LED GREEN CLEAR 2PLCC SMD
- Quantity:
- Payment:
- Shipping:
Inventory:2,905
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Product details
Overview
VLMG31K1L2-GS18 from Vishay Semiconductors is a green surface-mount LED in PLCC-2 package, emitting at dominant wavelength 572 nm with luminous intensity 7.1–18 mcd at 10 mA, forward voltage 2.1–2.8 V at 20 mA, and ±60° viewing angle - used for indicator and backlighting in telecommunication and office equipment.
For engineers reviewing the VLMG31K1L2-GS18 datasheet, VLMG31K1L2-GS18 pinout, VLMG31K1L2-GS18 application, or VLMG31K1L2-GS18 equivalent, this page delivers verified optical/electrical specs, thermal limits, tape-and-reel packaging (GS18, 8000 pcs/reel), JEDEC level 2a preconditioning, and ESD rating up to 2 kV - critical for SMT reliability and brightness binning compliance.
Technical Context
This GaP-on-GaP green LED operates at DC forward current up to 20 mA with 100 °C maximum junction temperature and 400 K/W thermal resistance to ambient when mounted on ≥16 mm² PCB pad. Its non-diffused lens enables efficient coupling to light pipes and LCD backlights.
The device complies with CECC 00802 and J-STD-020 for IR reflow, vapor phase, and wave soldering, and meets JEDEC JESD22-A114-B for 2 kV HBM ESD withstand voltage. Luminous intensity ratio within one reel is ≤1.6 (IVmax/IVmin), ensuring consistent brightness across production units.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 7.1–18 mcd at 10 mA - defines visible brightness range for indicator readability under ambient lighting |
| Dominant wavelength | 562–575 nm - specifies green spectral output compatible with human eye photopic response |
| Forward voltage | 2.1–2.8 V at 20 mA - determines series resistor sizing and power dissipation in constant-current drive |
| Viewing angle | ±60° - sets beam spread for uniform illumination across target area without secondary optics |
| Absolute max reverse voltage | 6 V - defines safe reverse-bias margin during transient conditions or AC-coupled driving |
| Junction-to-ambient Rth | 400 K/W on ≥16 mm² pad - quantifies thermal derating needed above 74 °C ambient |
| ESD withstand | 2 kV HBM - informs handling requirements and board-level protection design |
Pinout & Package
PLCC-2 package with 2-pin configuration: anode (pin 1) and cathode (pin 2), molded in white thermoplastic with clear epoxy lens and internal reflector. Dimensions: 3.5 ± 0.2 mm × 2.8 ± 0.15 mm × 1.75 ± 0.1 mm height; recommended footprint pads 2.6 mm × 1.6 mm with soldermask-defined areas.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Positive terminal | Connects to current source or series resistor; polarity must be observed to avoid reverse conduction |
| Cathode (Pin 2) | Negative terminal | Typically tied to ground or low-side switch; reverse voltage rating limited to 6 V |
Key Features
| Feature | Design Value |
|---|---|
| Non-diffused lens | Enables direct coupling to light pipes and edge-lit LCD backlights without scattering loss |
| Luminous intensity binning | IVmax/IVmin ≤ 1.6 per reel - ensures consistent brightness across assembled units |
| Solder process compatibility | Qualified for Pb-free IR reflow (260 °C peak), vapor phase, and wave soldering per J-STD-020 |
| JEDEC level 2a preconditioning | Supports automated placement and reflow without moisture-induced popcorning |
| Low profile form factor | 1.75 mm height - fits space-constrained front-panel indicators and compact displays |
Applications
| Telecom Indicator | Audio/Video Backlight |
|---|---|
Use Scenario: Status indication on telephone handsets and fax machines requiring high visibility in mixed lighting. IC Role / Device Role / Timing Role: Light-emitting diode providing visual feedback for line busy, message waiting, or power-on state. Use Value: Green emission at 572 nm matches peak photopic sensitivity; ±60° viewing angle ensures off-axis readability. |
Use Scenario: Keypad and display backlighting in stereo receivers and DVD players. IC Role / Device Role / Timing Role: Constant-current driven SMD LED delivering uniform illumination behind translucent overlays. Use Value: Non-diffused lens couples efficiently into light guides; 7.1–18 mcd range supports dimming via PWM without visible flicker. |
| Office Equipment Indicator | LCD Symbol Backlight |
Use Scenario: Power, error, and activity indicators on printers, scanners, and multifunction peripherals. IC Role / Device Role / Timing Role: Low-power visible indicator operating continuously at 10–20 mA DC. Use Value: 2.1–2.8 V forward voltage simplifies driver design; 100 °C max junction temperature supports operation near heat-generating ICs. |
Use Scenario: Edge-lit backlight for segmented LCD symbols in industrial control panels and test equipment. IC Role / Device Role / Timing Role: Primary light source coupled to acrylic light pipe with minimal optical loss. Use Value: Clear epoxy lens and reflective cavity maximize extraction efficiency; PLCC-2 footprint allows dense array placement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar green LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LGT670-K1L2 | OSRAM equivalent; identical luminous intensity bin (K1L2), same PLCC-2 package and 572 nm dominant wavelength | No difference in indicator or backlight use; same thermal and soldering profiles | Select LGT670-K1L2 when dual-sourcing from OSRAM is required for supply chain diversification |
| VLMG31K1M2-GS08 | Same family, higher luminous intensity bin (7.1–28 mcd vs. 7.1–18 mcd); GS08 tape (1500 pcs/reel) instead of GS18 (8000 pcs) | Better suited for high-brightness applications where >18 mcd is needed; lower reel quantity increases reorder frequency | Choose VLMG31K1M2-GS08 only if design requires higher minimum intensity; otherwise VLMG31K1L2-GS18 offers optimal cost-per-unit and supply continuity |
Compared with LGT670-K1L2, VLMG31K1L2-GS18 shares identical optical specs but offers Vishay-specific logistics (GS18 tape, JEDEC level 2a labeling); versus VLMG31K1M2-GS08, it trades peak intensity for tighter binning consistency and higher reel volume - critical for high-yield manufacturing.
Availability
VLMG31K1L2-GS18 is available at Aetrix Electronics and suitable for telecom indicators, office equipment status lights, and LCD symbol backlighting requiring stable component supply, consistent brightness binning, and Pb-free reflow compatibility.
Supply support for VLMG31K1L2-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 semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with emphasis on reliability, precision, and application-specific optimization.
The VLMG31-series belongs to Vishay's standard SMD LED product line, engineered for high-volume surface-mount assembly in indicator and backlight applications where consistent color, brightness, and thermal robustness are essential.
FAQ
What is the maximum forward current rating for VLMG31K1L2-GS18?
The absolute maximum DC forward current for VLMG31K1L2-GS18 is 20 mA at ambient temperatures ≤74 °C. Exceeding this value risks accelerated degradation or thermal runaway. The device supports surge forward current up to 0.34 A for pulses ≤10 μs, but continuous operation must remain within the 20 mA limit to maintain rated luminous intensity and lifetime. VLMG31K1L2-GS18 datasheet specifies this under Absolute Maximum Ratings.
Does VLMG31K1L2-GS18 require baking before reflow soldering?
VLMG31K1L2-GS18 is preconditioned to JEDEC level 2a and shipped in dry-packed aluminum bags with humidity indicator labels. If the sealed bag remains unopened and stored <40 °C/<90% RH, baking is not required. Once opened, devices must be mounted within 672 hours at <30 °C/60% RH or stored <10% RH; otherwise, VLMG31K1L2-GS18 requires baking per JESD22-A112 (e.g., 96 h at 60 °C/<5% RH).
What does the 'GS18' suffix indicate in VLMG31K1L2-GS18?
The 'GS18' suffix denotes Vishay's tape-and-reel packaging option: 8 mm antistatic blister tape, 8000 pieces per reel, compliant with DIN IEC 40 (CO) 564. This is the preferred option over GS08 (1500 pcs/reel) for high-volume production due to reduced changeover frequency and optimized logistics. VLMG31K1L2-GS18 reels include barcodes with batch, plant, and termination finish data.
Is VLMG31K1L2-GS18 compatible with lead-free reflow processes?
Yes, VLMG31K1L2-GS18 is qualified for Pb-free reflow soldering per J-STD-020, with peak package body temperature up to 260 °C for ≤10 seconds. The recommended profile includes ramp-up ≤3 °C/s, time above 217 °C ≤30 s, and peak hold at 240–245 °C. VLMG31K1L2-GS18 also supports vapor-phase and wave soldering per CECC 00802, confirmed in Vishay Document 81323 Rev. 1.8.
How is luminous intensity binned for VLMG31K1L2-GS18?
VLMG31K1L2-GS18 is binned to the K1L2 group: minimum 7.1 mcd and maximum 18 mcd at 10 mA. Within each GS18 reel, luminous intensity ratio (IVmax/IVmin) is guaranteed ≤1.6 - meaning no two LEDs on the same reel differ in brightness by more than 60%. This binning ensures uniform appearance in multi-LED arrays and eliminates post-assembly sorting. VLMG31K1L2-GS18 does not ship mixed brightness groups.
VLMG31K1L2-GS18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- VLMG31
- Package/Case:
- 2-SMD, J-Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Color:
- Green
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Clear
- Millicandela Rating:
- 13mcd
- Lens Style:
- Round with Flat Top
- Lens Size:
- 2.40mm Dia
- Voltage - Forward (Vf) (Typ):
- 2.2V
- Current - Test:
- 10mA
- Viewing Angle:
- 120°
- Mounting Type:
- Surface Mount
- Wavelength - Dominant:
- 569nm
- Wavelength - Peak:
- 565nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 2-PLCC
- Size / Dimension:
- 3.00mm L x 2.80mm W
VLMG31K1L2-GS18 FAQ
1.How can I place an order for VLMG31K1L2-GS18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLMG31K1L2-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 VLMG31K1L2-GS18 reliable?
The price and inventory of VLMG31K1L2-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLMG31K1L2-GS18 is usually 5 days.
3.What payment methods are accepted for VLMG31K1L2-GS18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLMG31K1L2-GS18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLMG31K1L2-GS18?
VLMG31K1L2-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLMG31K1L2-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 VLMG31K1L2-GS18?
For technical support, including VLMG31K1L2-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLMG31K1L2-GS18 requirements.
6.How does Aetrix verify that VLMG31K1L2-GS18 is sourced from the original manufacturer or authorized distributors?
All VLMG31K1L2-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 VLMG31K1L2-GS18 meets industry standards.
7.What is the process for return or replacement of VLMG31K1L2-GS18?
All VLMG31K1L2-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with VLMG31K1L2-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 VLMG31K1L2-GS18 part is unused and in its original packaging.
Return procedure for VLMG31K1L2-GS18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLMG31K1L2-GS18 Tags
-
LTST-C281KRKT
Lite-On Inc.
-
150060GS75000
Würth Elektronik
-
150060VS75000
Würth Elektronik
-
150060AS75000
Würth Elektronik
-
150060YS75000
Würth Elektronik
-
150060SS75000
Würth Elektronik
-
150060BS75000
Würth Elektronik
-
151031VS06000
Würth Elektronik
-
151033RS03000
Würth Elektronik
-
150080BS75000
Würth Elektronik
-
150080GS75000
Würth Elektronik
-
150141GS73100
Würth Elektronik
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