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Vishay Semiconductor Opto Division VLMKG3400-GS18
- Part No.:
- VLMKG3400-GS18
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 4-SMD, J-Lead
- Datasheet:
-
VLMKG3400-GS18.pdf
- Description:
- LED GREEN/RED CLEAR 4PLCC SMD
- Quantity:
- Payment:
- Shipping:
Inventory:14,773
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Product details
Overview
VLMKG3400-GS18 from Vishay Semiconductors is a surface-mount bicolor SMD LED in PLCC-4 package, integrating discrete super red (627–639 nm) and green (564–575 nm) AlInGaP-on-GaAs chips within one housing. It delivers luminous intensity of 56–140 mcd (super red) and 35.5–90 mcd (green) at 20 mA, with ±60° viewing angle and forward voltage of 1.9–2.6 V (red) / 2.0–2.6 V (green), enabling dual-color indication in compact space-constrained interfaces.
For engineers reviewing the VLMKG3400-GS18 datasheet, VLMKG3400-GS18 pinout, VLMKG3400-GS18 application, or VLMKG3400-GS18 equivalent, this device supports precise color selection in single-package indicators, backlighting for LCDs and symbols, and telecommunication status displays where brightness binning, ESD robustness (2 kV), and IR reflow compatibility are critical selection criteria.
Technical Context
This bicolor LED uses two independent AlInGaP-on-GaAs die - one optimized for super red emission (dominant λd = 627–639 nm, peak λp ≈ 643 nm), the other for green (λd = 564–575 nm, λp ≈ 572 nm). Each die operates as a separate diode with dedicated anode/cathode terminals, supporting independent current control up to 30 mA per chip.
It features non-diffused lens optics for efficient light-pipe coupling and backlighting, low thermal resistance (RthJA = 560 K/W for 1 chip on board), and JEDEC Level 4 preconditioning for moisture sensitivity. Its PLCC-4 package meets EIA/ICE standards and is compatible with automated placement and lead-free reflow (J-STD-020).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity (super red) | 56–140 mcd at 20 mA - enables high-visibility status indication without external optics |
| Luminous intensity (green) | 35.5–90 mcd at 20 mA - provides balanced dual-color contrast in shared optical path |
| Dominant wavelength | 627–639 nm (red), 564–575 nm (green) - ensures consistent color rendering across production lots |
| Viewing angle | ±60° - supports wide-angle visibility in panel-mounted indicator applications |
| Forward voltage | 1.9–2.6 V (red), 2.0–2.6 V (green) at 20 mA - allows common-current-source drive with minimal voltage headroom |
| ESD withstand | 2 kV HBM (JESD22-A114-B) - reduces handling damage risk during SMT assembly |
| Moisture sensitivity | JEDEC Level 4 - mandates dry-pack storage and ≤72 h floor life before reflow |
Pinout & Package
The VLMKG3400-GS18 is housed in a white thermoplastic PLCC-4 package with internal reflector and clear epoxy lens. Dimensions: 2.6 mm × 1.6 mm × 1.2 mm (L × W × H), with 0.5 mm lead pitch and solder pad layout optimized for IR reflow and wave soldering per CECC 00802.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Super red anode | Positive terminal for red die; requires series resistor or constant-current drive |
| 2 | Green cathode | Common cathode connection for green die; shares cathode with Pin 4 in standard configuration |
| 3 | Green anode | Positive terminal for green die; enables independent activation from red channel |
| 4 | Super red cathode | Common cathode for red die; electrically isolated from green cathode unless externally tied |
Key Features
| Feature | Design Value |
|---|---|
| Bicolor integration | Single PLCC-4 footprint replaces two discrete LEDs, reducing PCB area and assembly cost |
| Non-diffused lens | Enables direct coupling to light pipes and edge-lit LCD backlights without secondary optics |
| Luminous intensity ratio | IVmax/IVmin ≤ 1.6 per color - ensures predictable brightness matching across bins |
| Reflow compatibility | Rated for Pb-free IR reflow (peak 260 °C, ≤30 s) and vapor-phase processes per J-STD-020 |
| Low power consumption | 30 mA max per die at 2.6 V - supports energy-efficient designs in battery-powered devices |
Applications
| Telecom Indicator | Office Equipment Backlight |
|---|---|
Use Scenario: Status indication on telephone handsets and fax machines requiring visible dual-state feedback (e.g., call active/inactive). IC Role / Device Role / Timing Role: Dual-color visual indicator providing user-facing state signaling via independent red/green activation. Use Value: Eliminates need for two separate LEDs and associated routing, simplifying front-panel design while maintaining distinct color-coded states. |
Use Scenario: Keypad and function key backlighting in printers, copiers, and multifunction peripherals. IC Role / Device Role / Timing Role: Surface-mount light source coupled to light guides for uniform symbol illumination. Use Value: Non-diffused lens and ±60° viewing angle deliver directional output ideal for light-pipe integration with minimal flux loss. |
| LCD Symbol Backlight | Industrial Control Panel |
Use Scenario: Edge-lit backlighting for segmented LCD displays, icons, and status symbols in instrumentation panels. IC Role / Device Role / Timing Role: Compact, high-intensity SMD emitter mounted adjacent to light guide edge. Use Value: Super red and green wavelengths match human photopic response peaks, enhancing perceived brightness at low drive currents. |
Use Scenario: Multi-function status indicators on programmable logic controllers (PLCs) and HMI panels operating in extended temperature environments. IC Role / Device Role / Timing Role: Ruggedized visual feedback component rated for -40 °C to +100 °C ambient operation. Use Value: JEDEC Level 4 moisture rating and 125 °C junction temperature tolerance support reliable long-term deployment in uncontrolled industrial settings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bicolor LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OSRAM LSGT676 | Same PLCC-4 package, identical super red/green wavelength ranges, but luminous intensity binned to ±15 % vs. Vishay's ±1.6 ratio spec | Approved for automotive interior lighting per AEC-Q200; not qualified for industrial temp range (-40 to +100 °C) | Select LSGT676 only when automotive qualification is mandatory and tighter intensity tolerance is required |
| Vishay VLMKG3400-GS08 | Identical die and optical specs; differs only in tape/reel packaging (1500 pcs vs. 8000 pcs per reel) | No functional difference; GS08 used for prototyping or low-volume builds where smaller reels reduce inventory overhead | Choose GS08 for evaluation or small-batch production; GS18 preferred for high-volume manufacturing due to lower unit handling cost |
Compared with VLMKG3400-GS18, LSGT676 adds automotive qualification but sacrifices industrial temperature margin, while VLMKG3400-GS08 offers identical performance in a smaller reel format-making GS18 optimal for volume production where tape capacity and cost-per-unit drive sourcing decisions.
Availability
VLMKG3400-GS18 is available at Aetrix Electronics and suitable for telecom indicators, office equipment backlighting, and LCD symbol illumination requiring stable component supply, moisture-sensitive handling support, and RoHS-compliant lead-free assembly compatibility.
Supply support for VLMKG3400-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 Semiconductors is a global manufacturer of discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power MOSFETs, and precision resistors for industrial, automotive, and computing markets.
The VLMKG3400 series belongs to Vishay's SMD LED product line, engineered specifically for space-constrained, high-brightness dual-color indication and backlighting applications where optical consistency, thermal robustness, and automated assembly compatibility are essential.
FAQ
What is the maximum forward current rating for each die in the VLMKG3400-GS18?
The VLMKG3400-GS18 supports a maximum DC forward current of 30 mA per diode at ambient temperatures ≤ 80 °C. This rating applies independently to both the super red and green chips, allowing simultaneous or alternating operation without exceeding thermal limits. Exceeding 30 mA risks accelerated degradation or junction failure, especially above 80 °C ambient.
Does the VLMKG3400-GS18 have a common cathode or common anode configuration?
The VLMKG3400-GS18 uses a dual-anode/dual-cathode configuration: Pin 1 is super red anode, Pin 4 is super red cathode, Pin 3 is green anode, and Pin 2 is green cathode. There is no internal common connection - both anodes and cathodes are electrically isolated, enabling fully independent drive of each color channel.
What does the "GS18" suffix indicate in VLMKG3400-GS18?
The "GS18" suffix denotes the tape-and-reel packaging option: 8 mm antistatic blister tape with 8000 units per reel, optimized for high-volume SMT placement. This contrasts with GS08 (1500 units/reel) and reflects Vishay's standard taping specification for volume production, including moisture barrier bagging per JEDEC Level 4.
Is the VLMKG3400-GS18 compatible with lead-free reflow soldering processes?
Yes, the VLMKG3400-GS18 is fully compatible with lead-free reflow soldering per J-STD-020, supporting peak package body temperatures up to 260 °C for ≤30 seconds. Its PLCC-4 package and internal materials are qualified for IR reflow, vapor-phase, and double-wave soldering, with recommended ramp rates of ≤3 °C/s (up) and ≤6 °C/s (down).
How is luminous intensity binned for the VLMKG3400-GS18, and what does "R1" mean?
VLMKG3400-GS18 super red intensity is binned into groups P2 (56–71 mcd), Q1 (71–90 mcd), Q2 (90–112 mcd), and R1 (112–140 mcd); green is binned into N2 (35.5–45 mcd) and Q1 (71–90 mcd). "R1" indicates the highest brightness tier for super red, ensuring consistent output across reels - no mixing of bins occurs within a single reel.
VLMKG3400-GS18 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- VLM.3
- Package/Case:
- 4-SMD, J-Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Color:
- Green, Red
- Configuration:
- Independent
- Lens Color:
- -
- Lens Transparency:
- Clear
- Millicandela Rating:
- 63mcd Green, 98mcd Red
- Lens Style:
- Round with Flat Top
- Lens Size:
- 2.40mm Dia
- Voltage - Forward (Vf) (Typ):
- 2V Green, 1.9V Red
- Current - Test:
- 20mA Green, 20mA Red
- Viewing Angle:
- 120°
- Mounting Type:
- Surface Mount
- Wavelength - Dominant:
- 570nm Green, 633nm Red
- Wavelength - Peak:
- 572nm Green, 643nm Red
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 4-PLCC
- Size / Dimension:
- 3.00mm L x 2.80mm W
VLMKG3400-GS18 FAQ
1.How can I place an order for VLMKG3400-GS18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLMKG3400-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 VLMKG3400-GS18 reliable?
The price and inventory of VLMKG3400-GS18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLMKG3400-GS18 is usually 5 days.
3.What payment methods are accepted for VLMKG3400-GS18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLMKG3400-GS18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLMKG3400-GS18?
VLMKG3400-GS18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLMKG3400-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 VLMKG3400-GS18?
For technical support, including VLMKG3400-GS18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLMKG3400-GS18 requirements.
6.How does Aetrix verify that VLMKG3400-GS18 is sourced from the original manufacturer or authorized distributors?
All VLMKG3400-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 VLMKG3400-GS18 meets industry standards.
7.What is the process for return or replacement of VLMKG3400-GS18?
All VLMKG3400-GS18 units undergo pre-shipment inspection (PSI). If there is an issue with VLMKG3400-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 VLMKG3400-GS18 part is unused and in its original packaging.
Return procedure for VLMKG3400-GS18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLMKG3400-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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