My Inquiry
My Account
Vishay Semiconductor Opto Division VLMKE3400-GS08
- Part No.:
- VLMKE3400-GS08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 4-SMD, J-Lead
- Datasheet:
-
VLMKE3400-GS08.pdf
- Description:
- LED RED/YLW CLEAR 4PLCC SMD
- Quantity:
- Payment:
- Shipping:
Inventory:2,953
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VLMKE3400-GS08 from Vishay Semiconductors is a surface-mount bicolor LED in PLCC-4 package, integrating discrete red (630 nm dominant wavelength, 56–180 mcd at 20 mA) and yellow (581–594 nm, 90–280 mcd at 20 mA) AlInGaP-on-GaAs chips within one housing. It enables dual-color indication without external switching logic and is used in telecom status indicators, LCD backlighting, and office equipment front panels.
For engineers reviewing the VLMKE3400-GS08 datasheet, VLMKE3400-GS08 pinout, VLMKE3400-GS08 application, or VLMKE3400-GS08 equivalent, key selection criteria include luminous intensity ratio ≤1.6 per unit, ±60° viewing angle, JEDEC Level 4 moisture sensitivity, non-diffused lens for light-pipe coupling, and compatibility with IR reflow and TTW soldering processes.
Technical Context
This device implements a common-cathode dual-die configuration inside a white thermoplastic PLCC-4 body with clear epoxy encapsulation and internal reflector. Each die operates independently with separate anodes and shared cathode, enabling color-selective drive via two forward current paths.
It supports bidirectional polarity control: red and yellow diodes share thermal and mechanical mounting but maintain electrically isolated junctions, with absolute maximum ratings of 30 mA DC forward current per diode, 125 °C junction temperature, and 560 K/W thermal resistance to ambient on ≥16 mm² PCB pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Package | PLCC-4 SMD: low-profile, EIA/ICE-compliant, compatible with automated placement and IR reflow |
| Luminous Intensity (Red) | 56–180 mcd at 20 mA: enables brightness binning (P2–R2 groups) for consistent visual output across production reels |
| Luminous Intensity (Yellow) | 90–280 mcd at 20 mA: higher typical output than red channel, supporting balanced dual-color perception |
| Dominant Wavelength | Red: 630 nm; Yellow: 581–594 nm (6 bins): ensures precise color matching for UI consistency in telecom/audio devices |
| Viewing Angle | ±60° half-intensity: provides wide-angle visibility for front-panel indicators without secondary optics |
| Forward Voltage | Red: 1.9–2.6 V; Yellow: 2.0–2.6 V at 20 mA: allows direct drive from 3.3 V or 5 V logic with series resistor |
| Moisture Sensitivity | JEDEC Level 4: requires dry-pack storage and ≤72 h exposure before reflow; baking required if humidity indicator exceeds 10 % |
Pinout & Package
PLCC-4 package with 4 terminals: Anode_Red, Anode_Yellow, Cathode (common), and NC (no connection). Molded white thermoplastic body with non-diffused lens optimized for light-pipe coupling and backlighting applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode_Red | Drives red chip; reverse voltage not rated - must be operated forward-biased only |
| 2 | Anode_Yellow | Drives yellow chip; independent current path from red; same VF range tolerance |
| 3 | Cathode | Common cathode for both diodes; enables simplified two-wire color selection with shared ground return |
| 4 | NC | No internal connection; electrically isolated; no routing or termination required on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Non-diffused lens | Enables efficient coupling into light pipes and edge-lit LCD backlights without optical loss from diffusion layers |
| Luminous intensity ratio ≤1.6 | Ensures predictable relative brightness between red and yellow channels within one unit, reducing calibration effort |
| Low power consumption | Rated for 20 mA operation with <2.6 V VF: draws <52 mW per channel, suitable for battery-powered indicators |
| JEDEC Level 4 compliance | Validated moisture sensitivity level enables reliable handling in standard SMT lines when baked per JESD22-A112 |
| IR reflow & TTW compatible | Withstands peak temperatures up to 260 °C (reflow) and 235–260 °C (wave), eliminating need for special solder profiles |
Applications
| Telecom Indicator | Audio/Video Front Panel |
|---|---|
Use Scenario: Status indication on telephone handsets and fax machines where dual-color feedback (e.g., red = error, yellow = standby) is required. IC Role / Device Role / Timing Role: Bicolor LED providing user-visible state signaling without external driver IC or multiplexing circuitry. Use Value: Single-component solution reduces BOM count and PCB area versus discrete red + yellow LEDs; ±60° viewing angle ensures visibility across wide user angles. |
Use Scenario: Power-on, mute, and input-source indicators on AV receivers and portable media players. IC Role / Device Role / Timing Role: Dual-channel visual indicator enabling mode differentiation (e.g., red = powered off, yellow = powered on) using shared cathode topology. Use Value: Non-diffused lens couples efficiently to molded plastic light guides; low VF allows direct microcontroller GPIO drive with minimal current limiting. |
| Office Equipment UI | LCD Backlighting |
Use Scenario: Function key illumination and status lights on printers, scanners, and multifunction peripherals. IC Role / Device Role / Timing Role: Surface-mount indicator delivering high-visibility color-coded feedback in space-constrained front bezels. Use Value: PLCC-4 footprint fits tight panel layouts; luminous intensity binning (P2–R2/Q2–S2) ensures consistent brightness across production units. |
Use Scenario: Edge-lit backlight for small monochrome or segmented LCDs in test equipment and industrial HMIs. IC Role / Device Role / Timing Role: Primary light source coupled directly to acrylic light guide via non-diffused lens. Use Value: High yellow intensity (up to 280 mcd) improves perceived brightness in yellow-dominant displays; 581–594 nm matches human photopic response peak. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bicolor LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VLMKE3401-GS08 | Higher red intensity (71–140 mcd vs. 56–180 mcd) and yellow intensity (112–224 mcd vs. 90–280 mcd); identical package, pinout, and electrical specs | Better suited for applications requiring tighter luminance matching between colors due to narrower intensity spread | Select VLMKE3401-GS08 when consistent red/yellow balance is prioritized over maximum yellow output |
| TLDR6400 | Same PLCC-4 package and common-cathode topology; red/yellow wavelengths match closely (625 nm / 590 nm); lower max intensity (red: 120 mcd, yellow: 180 mcd) | Lower thermal resistance (480 K/W vs. 560 K/W) enables higher sustained current in compact layouts | Choose TLDR6400 when operating ambient exceeds 80 °C or when longer-term luminance stability under thermal stress is critical |
Compared with VLMKE3400-GS08, VLMKE3401-GS08 offers tighter intensity binning for improved color uniformity, while TLDR6400 provides better thermal performance at the cost of peak luminosity - both require identical PCB layout but differ in lifetime brightness retention and binning predictability.
Availability
VLMKE3400-GS08 is available at Aetrix Electronics and suitable for telecom indicators, audio/video front panels, and office equipment UIs requiring stable component supply, moisture-sensitive handling support, and consistent binned luminous output.
Supply support for VLMKE3400-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 manufacturer specializing in discrete semiconductors and passive components, with core expertise in optoelectronics, power MOSFETs, and precision resistors.
The VLMKE3400-GS08 belongs to Vishay's VLMK series of surface-mount bicolor LEDs, engineered specifically for high-reliability visual indication in space-constrained consumer and industrial interfaces where dual-color functionality and SMT manufacturability are essential.
FAQ
What is the pin configuration of the VLMKE3400-GS08?
The VLMKE3400-GS08 uses a PLCC-4 package with four terminals: Pin 1 is Anode_Red, Pin 2 is Anode_Yellow, Pin 3 is the common Cathode, and Pin 4 is NC (no internal connection). This common-cathode arrangement allows independent control of red and yellow emission using two separate current paths sharing one ground return, simplifying drive circuitry for dual-color applications.
Does the VLMKE3400-GS08 support reverse voltage operation?
No, the VLMKE3400-GS08 is not designed for reverse voltage operation. The absolute maximum ratings explicitly state "Not designed for reverse operation" for VR, and the reverse voltage rating is only specified as 6 V at IR = 10 μA - insufficient for functional reverse biasing. Applying reverse voltage risks permanent damage to either the red or yellow AlInGaP die, so proper polarity alignment during PCB layout and assembly is mandatory for VLMKE3400-GS08.
How does the luminous intensity ratio specification apply to the VLMKE3400-GS08?
The VLMKE3400-GS08 guarantees a luminous intensity ratio (IVmax/IVmin) ≤ 1.6 within a single packaging unit - meaning the brighter of the two colors (typically yellow) will not exceed 1.6× the dimmer color (typically red) when driven at the same 20 mA forward current. This ensures predictable, balanced dual-color perception without requiring per-unit calibration, making VLMKE3400-GS08 suitable for applications where relative color intensity consistency matters, such as status indicators with defined color semantics.
What soldering profiles are validated for the VLMKE3400-GS08?
The VLMKE3400-GS08 is validated for lead-free IR reflow per J-STD-020 (peak 245–260 °C, ≤30 s above 217 °C) and double-wave soldering (first wave 100–130 °C, second wave 235–260 °C). It is also compatible with TTW (vapor-phase) processes. All profiles assume preconditioning to JEDEC Level 4, and the device must be baked if exposed >72 h at >30 °C/60 % RH before reflow - confirming that VLMKE3400-GS08 meets industrial SMT line requirements without process deviation.
Can the VLMKE3400-GS08 be used for backlighting applications?
Yes, the VLMKE3400-GS08 is explicitly recommended for flat backlighting of LCDs, switches, and symbols due to its non-diffused lens, ±60° viewing angle, and high yellow luminous intensity (up to 280 mcd). Its low-profile PLCC-4 package and directional emission allow efficient coupling into light guides without secondary optics. When used in backlighting, VLMKE3400-GS08 delivers uniform edge illumination with color flexibility - red for warning states and yellow for active states - all from a single footprint.
VLMKE3400-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:
- 118mcd Red, 185mcd 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
VLMKE3400-GS08 FAQ
1.How can I place an order for VLMKE3400-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLMKE3400-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 VLMKE3400-GS08 reliable?
The price and inventory of VLMKE3400-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLMKE3400-GS08 is usually 5 days.
3.What payment methods are accepted for VLMKE3400-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLMKE3400-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLMKE3400-GS08?
VLMKE3400-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLMKE3400-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 VLMKE3400-GS08?
For technical support, including VLMKE3400-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLMKE3400-GS08 requirements.
6.How does Aetrix verify that VLMKE3400-GS08 is sourced from the original manufacturer or authorized distributors?
All VLMKE3400-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 VLMKE3400-GS08 meets industry standards.
7.What is the process for return or replacement of VLMKE3400-GS08?
All VLMKE3400-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VLMKE3400-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 VLMKE3400-GS08 part is unused and in its original packaging.
Return procedure for VLMKE3400-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLMKE3400-GS08 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
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
