Vishay Semiconductor Opto Division VLMO31K1L2-GS08
- Part No.:
- VLMO31K1L2-GS08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, J-Lead
- Datasheet:
-
VLMO31K1L2-GS08.pdf
- Description:
- LED ORANGE CLEAR 2PLCC SMD
- Quantity:
- Payment:

- Shipping:

Inventory:6,529
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Product details
Overview
VLMO31K1L2-GS08 from Vishay Semiconductors is a surface-mount soft orange LED in PLCC-2 package, with luminous intensity of 7.1–18 mcd at 10 mA, dominant wavelength 598–611 nm, and ±60° viewing angle-designed for indicator and backlighting applications in office equipment and LCD panels.
For engineers reviewing the VLMO31K1L2-GS08 datasheet, VLMO31K1L2-GS08 pinout, VLMO31K1L2-GS08 application, or VLMO31K1L2-GS08 equivalent, key selection criteria include luminous intensity binning (L-group), forward voltage range (2.0–2.8 V at 20 mA), thermal resistance (400 K/W), ESD rating (2 kV), and compatibility with IR reflow soldering per J-STD-020.
Technical Context
This soft orange LED uses GaAsP-on-GaP technology to deliver stable chromaticity within tight wavelength bins (600–603 nm, 602–605 nm, etc.) and narrow luminous intensity ratio (IVmax/IVmin ≤ 1.6 per reel). It operates at DC forward current up to 20 mA with junction temperature limited to 100 °C.
The PLCC-2 package features a white thermoplastic body with embedded lead frame and clear epoxy-filled reflector, enabling high coupling efficiency to light pipes and low-profile backlighting. Its non-diffused lens and ±60° half-intensity angle support directional illumination without secondary optics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 7.1–18 mcd at 10 mA - defines brightness range for consistent visual indication across production reels |
| Dominant wavelength | 598–611 nm - ensures soft orange color fidelity suitable for status indicators and human-factor lighting |
| Forward voltage | 2.0–2.8 V at 20 mA - determines series resistor sizing and power budget in 3.3 V or 5 V logic-level drive circuits |
| Viewing angle | ±60° - provides wide but controlled dispersion for uniform panel backlighting and front-panel visibility |
| ESD withstand | 2 kV HBM - enables safe handling during automated placement without additional ESD mitigation on board |
| Junction-to-ambient Rth | 400 K/W on >16 mm² pad - informs thermal pad design for continuous operation at 20 mA in ambient up to +74 °C |
| Reverse voltage | 6 V - allows brief reverse-bias operation per note (1), useful in multiplexed display drivers |
Pinout & Package
The VLMO31K1L2-GS08 is housed in a 2-pin PLCC-2 SMD package with molded white thermoplastic body, non-diffused lens, and lead frame embedded in clear epoxy. Recommended footprint matches 2.8 mm × 2.2 mm pad layout with 1.75 mm center-to-center pin spacing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive LED terminal | Connected to current source or microcontroller GPIO via current-limiting resistor; polarity must be observed during placement |
| Cathode (K) | Negative LED terminal | Typically tied to ground or sink driver; marking dot on package identifies cathode side per drawing 6.541-5067.01-4 |
Key Features
| Feature | Design Value |
|---|---|
| Luminous intensity binning (L-group) | Ensures IVmax/IVmin ≤ 1.6 per reel - eliminates visible brightness mismatch in multi-LED arrays |
| Non-diffused lens | Enables efficient coupling into light guides and edge-lit LCD backlights without optical loss from diffusion |
| JEDEC Level 2a preconditioning | Guarantees moisture sensitivity compliance for lead-free reflow - supports standard factory SMT line integration |
| EIA/ICE-standard PLCC-2 footprint | Ensures compatibility with industry-standard pick-and-place nozzles and stencil designs |
| Low profile (3.5 mm height) | Permits use in space-constrained front panels and ultra-thin display bezels |
Applications
| Telecom Indicator | A/V Equipment Backlight |
|---|---|
Use Scenario: Status indication on telephone handsets and fax machine control panels under ambient lighting. IC Role / Device Role / Timing Role: Visual feedback emitter driven by microcontroller GPIO or discrete transistor switch. Use Value: Soft orange chromaticity and ±60° viewing angle ensure legibility from multiple angles without glare. | Use Scenario: Backlighting for volume knobs, input selectors, and menu buttons on stereo receivers and DVD players. IC Role / Device Role / Timing Role: Constant-current driven LED providing localized illumination with minimal power draw (≤56 mW). Use Value: Non-diffused lens couples efficiently into molded plastic light pipes, delivering uniform brightness at low 10 mA drive. |
| Office Equipment Symbol Light | LCD Flat Backlight |
Use Scenario: Illumination of "Power", "Copy", or "Scan" icons on multifunction printers and copiers. IC Role / Device Role / Timing Role: Low-power indicator LED operating continuously or pulsed at <100 Hz for attention capture. Use Value: L-group binning guarantees consistent brightness across all units in a product batch, avoiding customer perception of quality variance. | Use Scenario: Edge-lit backlight for small monochrome or segmented LCDs in test instruments and industrial HMIs. IC Role / Device Role / Timing Role: Primary light source mounted adjacent to light guide, driven at 10–20 mA DC. Use Value: Dominant wavelength 598–611 nm delivers warm, eye-friendly orange tone ideal for low-distraction status displays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LED indicator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VLMO31J1K2-GS08 | Luminous intensity range 4.5–11.2 mcd (J-group) - lower brightness tier than VLMO31K1L2-GS08's L-group | Suitable where reduced visual prominence is acceptable, e.g., low-attention status lights | Select when tighter brightness control at lower output is required; not interchangeable without optical recalibration |
| OSRAM LOT670-K1L2 | Same luminous intensity bin (K1L2), identical soft orange chromaticity, but different mechanical tolerances and tape packaging | Drop-in compatible in optical function; requires validation of solder paste volume and reflow profile due to minor footprint variation | Use for dual-sourcing where Vishay supply continuity is constrained; verify tape feed compatibility with placement equipment |
Compared with VLMO31J1K2-GS08 and OSRAM LOT670-K1L2, the VLMO31K1L2-GS08 offers higher minimum luminous intensity (7.1 mcd vs. 4.5 mcd) and tighter binning consistency, making it preferred for applications demanding uniform appearance across multi-LED interfaces without post-assembly sorting.
Availability
VLMO31K1L2-GS08 is available at Aetrix Electronics and suitable for telecom indicator systems, office equipment UIs, A/V device backlighting, and LCD flat backlighting requiring stable component supply and consistent photometric performance across production volumes.
Supply support for VLMO31K1L2-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 of discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power MOSFETs, and precision resistors.
The VLMO31K1L2-GS08 belongs to Vishay's VLM.3-series standard SMD LEDs, engineered for narrow brightness and color selection in cost-sensitive, high-volume indicator and backlight applications.
FAQ
What is the luminous intensity range of the VLMO31K1L2-GS08 at 10 mA?
The VLMO31K1L2-GS08 has a luminous intensity range of 7.1–18 mcd at 10 mA, corresponding to its L-group binning classification. This range ensures consistent brightness across reels, with IVmax/IVmin ≤ 1.6 per packaging unit, critical for uniform appearance in multi-LED user interfaces. The VLMO31K1L2-GS08 is tested using a 25 ms current pulse with ±11% measurement accuracy.
What is the dominant wavelength specification for VLMO31K1L2-GS08?
The dominant wavelength of the VLMO31K1L2-GS08 is specified as 598–611 nm at 10 mA, placing it firmly in the soft orange spectrum. This range supports human-factor compliant status indication and avoids blue-light hazards. The VLMO31K1L2-GS08 uses GaAsP-on-GaP technology to achieve this stable chromaticity, with wavelength binned into six groups (1–6) per datasheet Table "COLOR CLASSIFICATION".
Can VLMO31K1L2-GS08 be used in reflow soldering processes?
Yes, the VLMO31K1L2-GS08 is qualified for lead-free IR reflow soldering per J-STD-020, with a peak temperature of 255 °C (max 260 °C) for ≤10 seconds. It also supports vapor-phase and wave soldering per CECC standards. The VLMO31K1L2-GS08 requires JEDEC Level 2a preconditioning and must be baked if exposed to ambient >60% RH for >672 hours after bag opening.
What is the maximum DC forward current rating for VLMO31K1L2-GS08?
The absolute maximum DC forward current for VLMO31K1L2-GS08 is 20 mA at ambient temperatures ≤74 °C. Exceeding this limit risks accelerated degradation and thermal runaway. At 20 mA, the forward voltage ranges from 2.0–2.8 V, and power dissipation must remain ≤56 mW. Derating is required above 74 °C ambient, per Fig. 1 in the datasheet.
Does VLMO31K1L2-GS08 have polarity markings on the package?
Yes, the VLMO31K1L2-GS08 PLCC-2 package includes a polarity marking: a dot or notch on the cathode side of the molded body, aligned with Pin 2 per drawing 6.541-5067.01-4. This marking is visible under magnification and corresponds to the cathode terminal in the pinout table. Correct orientation is essential during automated placement to avoid reverse-bias damage during initial power-up.
VLMO31K1L2-GS08 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:
- Active
- Color:
- Orange
- 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:
- 605nm
- Wavelength - Peak:
- 605nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 2-PLCC
- Size / Dimension:
- 3.00mm L x 2.80mm W
VLMO31K1L2-GS08 FAQ
1.How can I place an order for VLMO31K1L2-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLMO31K1L2-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 VLMO31K1L2-GS08 reliable?
The price and inventory of VLMO31K1L2-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLMO31K1L2-GS08 is usually 5 days.
3.What payment methods are accepted for VLMO31K1L2-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLMO31K1L2-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLMO31K1L2-GS08?
VLMO31K1L2-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLMO31K1L2-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 VLMO31K1L2-GS08?
For technical support, including VLMO31K1L2-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLMO31K1L2-GS08 requirements.
6.How does Aetrix verify that VLMO31K1L2-GS08 is sourced from the original manufacturer or authorized distributors?
All VLMO31K1L2-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 VLMO31K1L2-GS08 meets industry standards.
7.What is the process for return or replacement of VLMO31K1L2-GS08?
All VLMO31K1L2-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VLMO31K1L2-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 VLMO31K1L2-GS08 part is unused and in its original packaging.
Return procedure for VLMO31K1L2-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLMO31K1L2-GS08 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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