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Vishay Semiconductor Opto Division VLMS31J2L1-GS08
- Part No.:
- VLMS31J2L1-GS08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, J-Lead
- Datasheet:
-
VLMS31J2L1-GS08.pdf
- Description:
- LED RED CLEAR 2PLCC SMD
- Quantity:
- Payment:
- Shipping:
Inventory:3,696
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Product details
Overview
VLMS31J2L1-GS08 from Vishay Semiconductors is a high-intensity red surface-mount LED in PLCC-2 package, emitting at 630 nm dominant wavelength with 5.6–14 mcd luminous intensity at 10 mA, ±60° viewing angle, and 1.9–2.6 V forward voltage at 20 mA. It serves as an indicator or backlight in compact consumer and office electronics requiring reliable low-power visible-light emission.
For engineers reviewing the VLMS31J2L1-GS08 datasheet, VLMS31J2L1-GS08 pinout, VLMS31J2L1-GS08 application, or VLMS31J2L1-GS08 equivalent, this page delivers verified optical, electrical, thermal, and packaging data - including JEDEC level 2a preconditioning, 2 kV ESD rating, 400 K/W junction-to-ambient thermal resistance, and compatibility with IR reflow per J-STD-020.
Technical Context
This GaAsP-on-GaP red LED operates within -40 °C to +100 °C ambient range, with absolute maximum DC forward current of 20 mA and surge current rating of 0.34 A for ≤10 μs pulses. Its non-diffused lens enables efficient coupling to light pipes and LCD backlights, while its 2.8 mm × 2.2 mm PLCC-2 footprint supports automated placement on dense PCBs.
The device exhibits 15 pF junction capacitance at 0 V and 1 MHz, and maintains luminous intensity ratio IVmax/IVmin ≤ 1.6 within a reel - ensuring consistent brightness across units shipped together. Thermal resistance is specified at 400 K/W when mounted on ≥16 mm² copper pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 5.6–14 mcd at 10 mA - defines visible brightness level for indicator readability under typical ambient lighting |
| Dominant wavelength | 624–638 nm - specifies red spectral output compatible with human eye sensitivity and color-coded UI requirements |
| Viewing angle | ±60° - determines beam spread for uniform illumination across symbols, switches, or small-area backlighting |
| Forward voltage | 1.9–2.6 V at 20 mA - sets minimum supply headroom and power dissipation (≤80 mW) in driver design |
| Junction temperature | 100 °C max - constrains thermal management when operating at full 20 mA in enclosed environments |
| ESD withstand | 2 kV HBM per JESD22-A114-B - informs handling protocol and board-level protection needs during assembly |
| Thermal resistance | 400 K/W - quantifies required copper area (≥16 mm²) to maintain safe junction temperature at rated current |
Pinout & Package
PLCC-2 package: 2-pin surface-mount lead frame embedded in white thermoplastic housing with clear epoxy-filled reflector; dimensions 2.8 mm × 2.2 mm × 1.9 mm (L×W×H); non-diffused lens; cathode marked by chamfered corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive LED terminal | Connected to current-limiting resistor or constant-current source; polarity must be observed to avoid reverse breakdown |
| Cathode (K) | Negative LED terminal | Marked by chamfered corner; ties to ground or low-side switch; reverse voltage rating is only 6 V |
Key Features
| Feature | Design Value |
|---|---|
| Non-diffused lens | Enables precise light direction into light pipes or narrow-aperture backlight zones without scattering loss |
| Luminous intensity binning | Group L1 (11.2–14 mcd) ensures predictable brightness matching across units on same reel |
| JEDEC level 2a preconditioning | Guarantees moisture sensitivity compliance for standard SMT reflow without baking if used within 672 h of bag opening |
| IR reflow compatibility | Validated for Pb-free soldering up to 260 °C peak, supporting modern RoHS-compliant manufacturing |
| Low profile height | 1.9 mm max height allows integration beneath thin bezels or stacked PCB assemblies |
Applications
| Telecom Indicator | Audio/Video Backlight |
|---|---|
Use Scenario: Status indication on telephone handsets and fax control panels under variable ambient light. IC Role / Device Role / Timing Role: Red LED emitter providing visual feedback for line status, message waiting, or power-on confirmation. Use Value: High 14 mcd intensity and ±60° viewing angle ensure visibility from multiple angles without glare or hotspots. | Use Scenario: Backlighting for volume knobs, input selectors, and function buttons on AV receivers and DVD players. IC Role / Device Role / Timing Role: Discrete red light source driven by simple resistor-limited GPIO or dedicated LED driver IC. Use Value: Non-diffused lens couples efficiently into molded plastic light guides, minimizing flux loss in tight mechanical envelopes. |
| Office Equipment Symbol | LCD Flat Backlight |
Use Scenario: Illumination of power, paper-jam, or network-connect icons on printers and multifunction copiers. IC Role / Device Role / Timing Role: Low-power visible indicator integrated into front-panel overlays with printed diffusers. Use Value: 20 mA max current and 80 mW power dissipation allow direct drive from microcontroller I/O pins with minimal thermal impact. | Use Scenario: Edge-lit backlight for monochrome character LCDs in test equipment, POS terminals, and industrial HMIs. IC Role / Device Role / Timing Role: Primary red light source positioned at LCD edge, coupled via light pipe or reflective film. Use Value: Tight 624–638 nm dominant wavelength ensures consistent red hue across display segments, critical for color-coded status rendering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar red SMD LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LST670-J2L1 | Same optical/electrical specs; Osram-branded PLCC-2 red LED with identical binning and package | No functional difference; validated cross-reference per Vishay's official crossing table | Select when dual-sourcing from Osram is required for supply chain diversification |
| VLMS31J1L2-GS08 | Same package and wavelength, but higher max luminous intensity (18 mcd vs. 14 mcd) and wider intensity range (4.5–18 mcd) | Better suited for high-brightness indicator roles where over-spec margin is needed | Choose when greater intensity headroom is required without changing layout or drive circuit |
Compared with VLMS31J2L1-GS08, LST670-J2L1 offers identical performance and drop-in compatibility, while VLMS31J1L2-GS08 provides higher intensity ceiling at the cost of reduced binning consistency - making it preferable for applications demanding peak visibility over unit-to-unit uniformity.
Availability
VLMS31J2L1-GS08 is available at Aetrix Electronics and suitable for telecom indicators, audio/video backlighting, office equipment symbols, and LCD flat backlighting requiring stable component supply and consistent luminous intensity binning.
Supply support for VLMS31J2L1-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 Intertechnology is a global manufacturer of discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power management, and sensing solutions.
The VLMS31 series belongs to Vishay's standard SMD LED product line, engineered for cost-effective, high-yield integration into mass-produced consumer, telecom, and office equipment requiring robust visible-light indicators and backlights.
FAQ
What is the maximum forward current rating for VLMS31J2L1-GS08?
The absolute maximum DC forward current for VLMS31J2L1-GS08 is 20 mA at ambient temperatures ≤74 °C. Exceeding this value risks accelerated degradation or thermal runaway. The device is characterized at 10 mA for luminous intensity and 20 mA for forward voltage, and its 80 mW power dissipation limit aligns with this rating when VF is 2.6 V. Always verify thermal design using the 400 K/W RthJA value.
Does VLMS31J2L1-GS08 require baking before reflow soldering?
VLMS31J2L1-GS08 does not require baking if mounted within 672 hours (4 weeks) of opening the moisture barrier bag and stored at ≤30 °C and ≤60 % RH. It is preconditioned to JEDEC level 2a, and its reflow profile is validated for peak temperatures up to 260 °C. Baking is only necessary if humidity indicator cards show >10 % RH or if the 672-hour window is exceeded.
What does the "L1" in VLMS31J2L1-GS08 signify?
The "L1" in VLMS31J2L1-GS08 denotes the luminous intensity bin: L = 11.2–14 mcd range, and 1 = lower sub-bin within that group. This ensures all units on a given reel fall within a tight 14/11.2 = 1.25 intensity ratio, critical for consistent appearance in multi-LED arrays. The full part number guarantees shipment of only L1-binned devices - no mixing of bins per reel.
Can VLMS31J2L1-GS08 be driven directly from a microcontroller GPIO pin?
Yes, VLMS31J2L1-GS08 can be driven directly from most 3.3 V or 5 V microcontroller GPIO pins using a series current-limiting resistor. At 20 mA and 2.6 V VF, a 220 Ω resistor suffices for 5 V supply; for 3.3 V, a 39 Ω resistor yields ~17 mA. Ensure GPIO sink/source capability meets the current demand and confirm logic-level compatibility - the device has no internal regulation and relies entirely on external current control.
What is the significance of the non-diffused lens in VLMS31J2L1-GS08?
The non-diffused lens in VLMS31J2L1-GS08 preserves optical directionality, enabling efficient coupling into light pipes, fiber optics, or narrow-aperture backlight films. Unlike diffused LEDs that scatter light broadly, this variant delivers concentrated flux within ±60°, reducing losses in guided-light systems and improving brightness uniformity across linear or segmented displays - especially valuable in space-constrained front-panel designs.
VLMS31J2L1-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:
- 10mcd
- 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
VLMS31J2L1-GS08 FAQ
1.How can I place an order for VLMS31J2L1-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLMS31J2L1-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 VLMS31J2L1-GS08 reliable?
The price and inventory of VLMS31J2L1-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLMS31J2L1-GS08 is usually 5 days.
3.What payment methods are accepted for VLMS31J2L1-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLMS31J2L1-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLMS31J2L1-GS08?
VLMS31J2L1-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLMS31J2L1-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 VLMS31J2L1-GS08?
For technical support, including VLMS31J2L1-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLMS31J2L1-GS08 requirements.
6.How does Aetrix verify that VLMS31J2L1-GS08 is sourced from the original manufacturer or authorized distributors?
All VLMS31J2L1-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 VLMS31J2L1-GS08 meets industry standards.
7.What is the process for return or replacement of VLMS31J2L1-GS08?
All VLMS31J2L1-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VLMS31J2L1-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 VLMS31J2L1-GS08 part is unused and in its original packaging.
Return procedure for VLMS31J2L1-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLMS31J2L1-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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