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Vishay Semiconductor Opto Division VLMS31K1L2-GS08
- Part No.:
- VLMS31K1L2-GS08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, J-Lead
- Datasheet:
-
VLMS31K1L2-GS08.pdf
- Description:
- LED RED CLEAR 2PLCC SMD
- Quantity:
- Payment:
- Shipping:
Inventory:5,721
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Product details
Overview
VLMS31K1L2-GS08 from Vishay Semiconductors is a high-intensity red surface-mount LED in PLCC-2 package, featuring luminous intensity of 7.1–18 mcd at 10 mA, dominant wavelength 624–638 nm, and ±60° viewing angle. It serves as an indicator or backlight in compact consumer and office electronics requiring reliable low-power visible emission.
For engineers reviewing the VLMS31K1L2-GS08 datasheet, VLMS31K1L2-GS08 pinout, VLMS31K1L2-GS08 application, or VLMS31K1L2-GS08 equivalent, key selection criteria include luminous intensity binning (K1/L2), GaAsP-on-GaP red emitter technology, PLCC-2 mechanical compatibility, JEDEC level 2a moisture sensitivity, and IR-reflow soldering compliance per J-STD-020.
Technical Context
This red SMD LED uses GaAsP-on-GaP semiconductor technology to deliver stable visible emission with dominant wavelength centered at 630 nm and peak wavelength at 643 nm. Its optical output is characterized by a non-diffused lens and ±60° half-intensity angle, enabling efficient coupling into light pipes and uniform flat backlighting.
The device operates at DC forward current up to 20 mA with forward voltage 1.9–2.6 V, junction temperature limit of 100 °C, and thermal resistance of 400 K/W when mounted on ≥16 mm² PCB pad. It meets ESD withstand voltage up to 2 kV (JESD22-A114-B) and supports automated placement and reflow, vapor-phase, and wave soldering per CECC 00802 and J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 7.1–18 mcd at 10 mA - defines brightness range for visual indication under standard drive conditions |
| Dominant wavelength | 624–638 nm - specifies red spectral band suitable for human-visible signaling and backlighting |
| Viewing angle | ±60° - determines beam spread for wide-angle illumination in panel indicators and LCD backlights |
| Forward voltage | 1.9–2.6 V at 20 mA - sets minimum supply headroom and power dissipation (≤80 mW) |
| Junction temperature | 100 °C max - constrains thermal design for continuous operation in ambient up to +74 °C |
| ESD withstand | 2 kV HBM - informs handling requirements and board-level protection needs |
| Moisture sensitivity | JEDEC level 2a - mandates dry-pack storage and ≤672 h factory floor life before reflow |
Pinout & Package
The VLMS31K1L2-GS08 is housed in a white thermoplastic PLCC-2 package with embedded lead frame and clear epoxy-filled reflector. Package dimensions are 3.5 ± 0.2 mm × 2.8 ± 0.15 mm × 1.75 ± 0.1 mm (L × W × H), with 2.2 mm pitch between terminals and 0.9 mm terminal width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive LED terminal | Connected to current source; polarity must be observed to avoid reverse conduction beyond 6 V |
| Cathode (K) | Negative LED terminal | Connected to ground or current sink; marked by chamfered corner on package outline |
Key Features
| Feature | Design Value |
|---|---|
| Non-diffused lens | Enables precise optical coupling to light guides and improves edge-lit LCD backlight efficiency |
| Luminous intensity ratio ≤1.6 | Ensures consistent brightness across LEDs on same tape reel, reducing bin-matching effort in production |
| Low profile PLCC-2 | 1.75 mm height allows integration into space-constrained front panels and slim display bezels |
| IR-reflow compatible | Withstands peak reflow temperature of 260 °C for ≤10 s, supporting lead-free assembly without degradation |
| EIA/ICE standard package | Guarantees mechanical interoperability with industry-standard pick-and-place nozzles and stencil apertures |
Applications
| Telecom Indicator | Audio/Video Backlight |
|---|---|
Use Scenario: Status indication on telephone handsets and fax control panels where visibility under ambient lighting is critical. IC Role / Device Role / Timing Role: Red visual emitter providing user feedback via steady or pulsed illumination. Use Value: High luminous intensity (7.1–18 mcd) ensures legibility at viewing angles up to ±60° without added optics. |
Use Scenario: Backlighting for volume knobs, input selectors, and function keys on AV receivers and DVD players. IC Role / Device Role / Timing Role: Low-power red light source driven continuously at 10–20 mA for panel illumination. Use Value: Non-diffused lens couples efficiently into molded plastic light pipes, minimizing flux loss in tight spaces. |
| Office Equipment Symbol | LCD Flat Backlight |
Use Scenario: Power-on, network activity, or paper-jam indicators on printers, scanners, and multifunction devices. IC Role / Device Role / Timing Role: Discrete red LED used in multiplexed or static drive configurations for status symbols. Use Value: JEDEC level 2a moisture rating and IR-reflow compatibility support high-yield SMT manufacturing. |
Use Scenario: Edge-lit backlight for monochrome character LCDs in test equipment, industrial HMIs, and POS terminals. IC Role / Device Role / Timing Role: Primary red emitter positioned along LCD perimeter to provide uniform panel illumination. Use Value: ±60° viewing angle and 630 nm dominant wavelength optimize contrast and readability in indoor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar red SMD LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VLMS31J1L2-GS08 | Lower min. luminous intensity (4.5 mcd vs. 7.1 mcd); same wavelength and package | Suitable where lower brightness suffices and tighter cost control is required | Select when brightness margin is not critical and bin consistency within J-group is acceptable |
| LST670-K1L2 | OSRAM equivalent with identical luminous intensity binning (K1/L2), same PLCC-2 footprint and optical specs | Drop-in alternative for dual-sourcing; identical thermal and soldering profiles | Choose for supply chain diversification without layout or firmware changes |
Compared with VLMS31K1L2-GS08, VLMS31J1L2-GS08 offers reduced brightness headroom but lower unit cost, while LST670-K1L2 provides identical photometric and mechanical performance with second-source assurance-both require no PCB redesign.
Availability
VLMS31K1L2-GS08 is available at Aetrix Electronics and suitable for telecom indicator systems, audio/video front-panel designs, and office equipment status lighting requiring stable component supply, consistent luminous intensity binning, and JEDEC-compliant moisture handling.
Supply support for VLMS31K1L2-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 VLMS31K1L2-GS08 belongs to Vishay's VLM3-series standard SMD LED family, engineered for cost-effective, high-yield assembly in consumer and industrial indicator and backlight applications.
FAQ
What is the luminous intensity range of the VLMS31K1L2-GS08 at 10 mA?
The VLMS31K1L2-GS08 has a luminous intensity range of 7.1–18 mcd at 10 mA forward current, corresponding to its K1/L2 bin classification per Vishay's intensity grading table. This range reflects factory-tested values measured with 25 ms pulse width and ±11 % accuracy, ensuring predictable brightness for visual indication tasks.
Does the VLMS31K1L2-GS08 support lead-free reflow soldering?
Yes, the VLMS31K1L2-GS08 is qualified for lead-free reflow soldering per J-STD-020, with a maximum peak package body temperature of 260 °C for ≤10 seconds. Its construction and materials withstand the full JEDEC-compliant thermal profile, including ramp rates up to 3 °C/s and cooling rates up to 6 °C/s.
What is the viewing angle specification for the VLMS31K1L2-GS08?
The VLMS31K1L2-GS08 has an angle of half intensity of ±60°, meaning luminous intensity drops to 50 % of its axial value at 60° off-center in both directions. This wide viewing angle is enabled by its non-diffused lens and internal reflector geometry, making it ideal for applications requiring broad, uniform illumination.
How is moisture sensitivity managed for the VLMS31K1L2-GS08?
The VLMS31K1L2-GS08 is rated JEDEC level 2a, requiring dry-pack storage in sealed aluminum bags with desiccant and humidity indicator cards. Once opened, it must be mounted within 672 hours at ≤30 °C/60 % RH or stored at <10 % RH; otherwise, baking at 60 °C for 96 hours is required prior to reflow.
What does the "K1L2" suffix indicate in VLMS31K1L2-GS08?
The "K1L2" suffix denotes the luminous intensity binning: K1 specifies the minimum intensity range (7.1–9.0 mcd), and L2 specifies the maximum range (14–18 mcd). This dual-bin coding ensures that all units on a given 1500-piece GS08 tape reel fall within this combined intensity window, simplifying brightness matching in production.
VLMS31K1L2-GS08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- VLM3
- Package/Case:
- 2-SMD, J-Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Color:
- Red
- 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):
- 1.9V
- Current - Test:
- 10mA
- Viewing Angle:
- 120°
- Mounting Type:
- Surface Mount
- Wavelength - Dominant:
- 630nm
- Wavelength - Peak:
- 643nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 2-PLCC
- Size / Dimension:
- 3.00mm L x 2.80mm W
VLMS31K1L2-GS08 FAQ
1.How can I place an order for VLMS31K1L2-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLMS31K1L2-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 VLMS31K1L2-GS08 reliable?
The price and inventory of VLMS31K1L2-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLMS31K1L2-GS08 is usually 5 days.
3.What payment methods are accepted for VLMS31K1L2-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLMS31K1L2-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLMS31K1L2-GS08?
VLMS31K1L2-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLMS31K1L2-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 VLMS31K1L2-GS08?
For technical support, including VLMS31K1L2-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLMS31K1L2-GS08 requirements.
6.How does Aetrix verify that VLMS31K1L2-GS08 is sourced from the original manufacturer or authorized distributors?
All VLMS31K1L2-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 VLMS31K1L2-GS08 meets industry standards.
7.What is the process for return or replacement of VLMS31K1L2-GS08?
All VLMS31K1L2-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VLMS31K1L2-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 VLMS31K1L2-GS08 part is unused and in its original packaging.
Return procedure for VLMS31K1L2-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLMS31K1L2-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
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