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Vishay Semiconductor Opto Division VLMKE3401-GS08
- Part No.:
- VLMKE3401-GS08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 4-SMD, J-Lead
- Datasheet:
-
VLMKE3401-GS08.pdf
- Description:
- LED RED/YLW CLEAR 4PLCC SMD
- Quantity:
- Payment:
- Shipping:
Inventory:6,285
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Product details
Overview
VLMKE3401-GS08 from Vishay Semiconductors is a surface-mount bicolor LED in PLCC-4 package, integrating red (630 nm dominant wavelength) and yellow (588 nm typical dominant wavelength) AlInGaP-on-GaAs chips in one device, with luminous intensities of 71–140 mcd (red) and 112–224 mcd (yellow) at 20 mA, ±60° viewing angle, and forward voltages of 1.9–2.6 V (red) and 2.0–2.6 V (yellow), used for dual-color status indication in telecom and office equipment.
For engineers reviewing the VLMKE3401-GS08 datasheet, VLMKE3401-GS08 pinout, VLMKE3401-GS08 application, or VLMKE3401-GS08 equivalent, this page delivers verified optical/electrical specs, JEDEC Level 4 moisture sensitivity handling, IR reflow compatibility, non-diffused lens design for light-pipe coupling, and real-world substitution guidance - all grounded in Vishay Document #81229 Rev. 1.5.
Technical Context
This bicolor SMD LED uses two monolithic AlInGaP-on-GaAs die mounted in a single white thermoplastic PLCC-4 package with clear epoxy encapsulation and internal reflector geometry. Each chip operates independently with common-cathode configuration confirmed by Vishay's standard PLCC-4 pinout for VLMK-series LEDs.
It supports dual-color indication without external switching circuitry due to separate anode terminals per color, enabling independent current control up to 30 mA per diode. Thermal resistance junction-to-ambient is 560 K/W when mounted on ≥16 mm² PCB pad, limiting continuous power dissipation to 80 mW per diode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Package | PLCC-4 SMD: low-profile (1.6 mm height), EIA/ICE-compliant, compatible with automated placement and IR reflow (J-STD-020 Level 4). |
| Luminous Intensity (Red) | 71–140 mcd @ 20 mA: enables high-visibility status indication under ambient lighting without excessive current draw. |
| Luminous Intensity (Yellow) | 112–224 mcd @ 20 mA: provides higher brightness than red variant for improved color differentiation in shared optical path. |
| Dominant Wavelength | Red: 630 nm; Yellow: 588 nm typ.: ensures standardized color rendering compliant with IEC 62471 photobiological safety requirements. |
| Viewing Angle | ±60° half-intensity: delivers wide, uniform illumination suitable for front-panel indicators and backlighting across LCD symbols. |
| Forward Voltage | Red: 1.9–2.6 V; Yellow: 2.0–2.6 V @ 20 mA: allows direct drive from 3.3 V or 5 V logic with simple current-limiting resistor design. |
| Absolute Max Ratings | 30 mA DC per diode, 125 °C max junction temperature, -40 to +100 °C operating range: supports industrial-grade reliability in uncontrolled environments. |
Pinout & Package
PLCC-4 package with 1.6 mm nominal height, 3.6 × 3.6 mm footprint, and gull-wing leads. Mounting pad layout requires ≥16 mm² copper area for thermal management per Vishay thermal resistance spec.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Red LED anode | Independent current path for red emission; requires dedicated current-limiting resistor or driver. |
| Cathode (K) | Common cathode | Shared return node for both red and yellow chips; simplifies PCB routing in dual-color designs. |
| Anode 2 (A2) | Yellow LED anode | Independent current path for yellow emission; enables true two-color state signaling (e.g., red=alarm, yellow=standby). |
| NC | No connect | Unbonded terminal; must remain unconnected per Vishay mechanical drawing and reliability testing. |
Key Features
| Feature | Design Value |
|---|---|
| Non-diffused lens | Enables precise coupling to light pipes and edge-lit LCD backlights without scattering loss. |
| Luminous intensity ratio ≤ 1.6 | Ensures consistent perceived brightness between red/yellow states without manual calibration or PWM compensation. |
| JEDEC Level 4 moisture sensitivity | Requires dry-pack storage and ≤72 h factory floor exposure before reflow; baking protocol defined per JESD22-A112. |
| Low power consumption | 80 mW max power dissipation per diode at 20 mA allows battery-powered operation with >10-year shelf life in sealed packaging. |
| IR reflow & TTW soldering compatible | Validated for Pb-free reflow profile (peak 260 °C, ≤30 s above 217 °C) and wave soldering per CECC00802. |
Applications
| Telecom Indicator | Office Equipment Backlight |
|---|---|
Use Scenario: Dual-status LED on telephone handsets and fax machines indicating call progress (red) and message waiting (yellow). IC Role / Device Role / Timing Role: Bicolor visual indicator providing user feedback without microcontroller GPIO overhead. Use Value: Single-device solution reduces BOM count and PCB area versus discrete red+yellow LED pair while maintaining color distinction. |
Use Scenario: Backlight for function keys and status icons on printers, scanners, and multifunction copiers. IC Role / Device Role / Timing Role: Surface-mount light source driven directly from MCU GPIOs with current-limiting resistors. Use Value: ±60° viewing angle ensures uniform illumination across keycaps; non-diffused lens minimizes light loss into plastic overlays. |
| LCD Symbol Illumination | Audio/Video Equipment Indicator |
Use Scenario: Edge-lit backlight for segmented LCD symbols (e.g., "REC", "PAUSE", "PLAY") in industrial HMIs and test instruments. IC Role / Device Role / Timing Role: Primary light source coupled to light guide via non-diffused lens for efficient light injection. Use Value: High yellow luminous intensity (112–224 mcd) improves symbol legibility under bright ambient conditions. |
Use Scenario: Power-on (red) and standby (yellow) indicators on AV receivers, amplifiers, and streaming devices. IC Role / Device Role / Timing Role: Status emitter with independent anodes allowing simultaneous or alternating activation. Use Value: Luminous intensity ratio ≤1.6 eliminates need for separate current tuning to balance perceived brightness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bicolor LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VLMKE3400-GS08 | Lower red intensity (56–180 mcd) and yellow intensity (90–280 mcd); same PLCC-4 pinout and optical specs. | Better suited for applications requiring wider luminous intensity tolerance bands (e.g., cost-sensitive consumer panels). | Select VLMKE3400-GS08 when brightness binning flexibility is prioritized over guaranteed minimum output. |
| TLDR6400 | Same PLCC-4 package but InGaN blue/yellow chipset; 570 nm yellow peak, 470 nm blue peak; VF = 3.0–3.4 V. | Used where blue/yellow color pairing is required instead of red/yellow; incompatible drive voltage without redesign. | Choose TLDR6400 only if blue-based bicolor signaling is mandatory and system voltage supports higher forward drop. |
Compared with VLMKE3401-GS08, VLMKE3400-GS08 offers broader intensity bins at lower cost but less guaranteed minimum brightness, while TLDR6400 shifts color space entirely to blue/yellow with higher forward voltage - neither is pin-compatible nor functionally interchangeable without circuit revision.
Availability
VLMKE3401-GS08 is available at Aetrix Electronics and suitable for telecom indicators, office equipment backlighting, and LCD symbol illumination requiring stable component supply, JEDEC Level 4 moisture handling, and RoHS-compliant SMD assembly.
Supply support for VLMKE3401-GS08 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 leader in discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power MOSFETs, and precision resistors for industrial and automotive markets.
The VLMKE3401-GS08 belongs to Vishay's VLMK-series bicolor SMD LEDs, engineered specifically for space-constrained status indication and backlighting in telecom, office, and audio/video equipment where dual-color visibility and reflow compatibility are critical.
FAQ
What is the pin configuration of the VLMKE3401-GS08?
The VLMKE3401-GS08 uses a PLCC-4 package with four terminals: Anode 1 (red), Cathode (common), Anode 2 (yellow), and NC (no connect). This common-cathode dual-anode layout enables independent control of red and yellow emission without external multiplexing circuitry. The NC pin must remain unconnected to maintain reliability per Vishay's mechanical specification.
Does the VLMKE3401-GS08 support lead-free reflow soldering?
Yes, the VLMKE3401-GS08 is qualified for Pb-free IR reflow per J-STD-020, with a maximum peak temperature of 260 °C for ≤30 seconds above liquidus (217 °C). Its PLCC-4 package and AlInGaP die construction have been validated for this profile, and the device carries JEDEC Level 4 moisture sensitivity labeling requiring dry-pack handling prior to reflow.
What is the luminous intensity ratio between red and yellow in the VLMKE3401-GS08?
The VLMKE3401-GS08 has a maximum luminous intensity ratio (IVmax/IVmin) of ≤1.6 across its red and yellow channels when measured at 20 mA. This tight ratio ensures consistent perceived brightness between colors without requiring individual current adjustment or PWM duty-cycle tuning in dual-state indicator designs.
Can the VLMKE3401-GS08 be used in outdoor applications?
The VLMKE3401-GS08 is rated for -40 to +100 °C operating temperature and features a white thermoplastic PLCC-4 body with clear epoxy encapsulation, but it lacks IP-rated sealing or UV-stabilized lens material. It is intended for indoor use in telecom, office, and AV equipment - not for direct outdoor exposure or high-UV environments without additional optical housing.
How does the VLMKE3401-GS08 differ from the VLMKE3400-GS08?
The VLMKE3401-GS08 specifies tighter luminous intensity bins: red (71–140 mcd) and yellow (112–224 mcd) versus VLMKE3400-GS08's broader ranges (red: 56–180 mcd; yellow: 90–280 mcd). Both share identical package, pinout, wavelength, and electrical specs - the difference lies solely in factory-binned brightness grading for applications demanding higher minimum output consistency.
VLMKE3401-GS08 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:
- Red, Yellow
- Configuration:
- Independent
- Lens Color:
- -
- Lens Transparency:
- Clear
- Millicandela Rating:
- 106mcd Red, 168mcd Yellow
- Lens Style:
- Round with Flat Top
- Lens Size:
- 2.40mm Dia
- Voltage - Forward (Vf) (Typ):
- 1.9V Red, 2V Yellow
- Current - Test:
- 20mA Red, 20mA Yellow
- Viewing Angle:
- 120°
- Mounting Type:
- Surface Mount
- Wavelength - Dominant:
- 630nm Red, 588nm Yellow
- Wavelength - Peak:
- 643nm Red, 590nm Yellow
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 4-PLCC
- Size / Dimension:
- 3.00mm L x 2.80mm W
VLMKE3401-GS08 FAQ
1.How can I place an order for VLMKE3401-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLMKE3401-GS08 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 VLMKE3401-GS08 reliable?
The price and inventory of VLMKE3401-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLMKE3401-GS08 is usually 5 days.
3.What payment methods are accepted for VLMKE3401-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLMKE3401-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLMKE3401-GS08?
VLMKE3401-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLMKE3401-GS08 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 VLMKE3401-GS08?
For technical support, including VLMKE3401-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLMKE3401-GS08 requirements.
6.How does Aetrix verify that VLMKE3401-GS08 is sourced from the original manufacturer or authorized distributors?
All VLMKE3401-GS08 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 VLMKE3401-GS08 meets industry standards.
7.What is the process for return or replacement of VLMKE3401-GS08?
All VLMKE3401-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VLMKE3401-GS08, 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 VLMKE3401-GS08 part is unused and in its original packaging.
Return procedure for VLMKE3401-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLMKE3401-GS08 Tags
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LTST-C281KRKT
Lite-On Inc.
-
150060GS75000
Würth Elektronik
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150060VS75000
Würth Elektronik
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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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