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Vishay Semiconductor Opto Division VLME31R1S2-GS08
- Part No.:
- VLME31R1S2-GS08
- Manufacturer:
- Vishay Semiconductor Opto Division
- Category:
- LED Indication - Discrete
- Package:
- 2-SMD, J-Lead
- Datasheet:
-
VLME31R1S2-GS08.pdf
- Description:
- LED YELLOW CLEAR 2PLCC SMD
- Quantity:
- Payment:
- Shipping:
Inventory:2,161
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Product details
Overview
VLME31R1S2-GS08 from Vishay Semiconductors is a yellow AlInGaP-on-GaAs surface-mount LED in PLCC-2 package, delivering 112–280 mcd luminous intensity at 20 mA, with dominant wavelength 581–594 nm and ±60° viewing angle-designed for automotive dashboard backlighting and office equipment indicators.
For engineers reviewing the VLME31R1S2-GS08 datasheet, VLME31R1S2-GS08 pinout, VLME31R1S2-GS08 application, or VLME31R1S2-GS08 equivalent, key selection criteria include luminous intensity binning (R1 group), AEC-Q101 qualification, JEDEC level 2a preconditioning, and compatibility with IR reflow per J-STD-020.
Technical Context
This device uses AlInGaP-on-GaAs semiconductor technology to achieve high-brightness yellow emission with narrow dominant wavelength spread (581–594 nm) and stable forward voltage (2.0–2.6 V at 20 mA). Its PLCC-2 package features a white thermoplastic body with clear epoxy lens and integrated reflector, enabling efficient light extraction and directional control.
The VLME31R1S2-GS08 operates across –40 °C to +100 °C ambient temperature, supports 30 mA DC forward current, and exhibits 400 K/W thermal resistance junction-to-ambient when mounted on ≥16 mm² PCB pad-making it suitable for space-constrained, thermally demanding indicator applications requiring long-term reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Luminous intensity | 112–280 mcd at 20 mA - defines brightness range within R1 bin for consistent visual output in grouped assemblies |
| Dominant wavelength | 581–594 nm - ensures yellow chromaticity compliant with automotive and industrial indicator color standards |
| Forward voltage | 2.0–2.6 V at 20 mA - enables low-power drive with standard 3.3 V or 5 V logic-level current-limiting resistor networks |
| Viewing angle | ±60° - provides wide, uniform illumination ideal for backlighting flat symbols and LCD segments |
| Junction temperature | +125 °C max - supports operation in under-hood or enclosed industrial enclosures without active cooling |
| ESD withstand | 2 kV HBM - meets IEC 61000-4-2 Level 2 for robust handling in automated SMT lines |
| AEC-Q101 qualified | Yes - validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
Pinout & Package
PLCC-2 package: 2-pin surface-mount lead frame embedded in white thermoplastic housing with non-diffused clear epoxy lens; dimensions 3.5 mm × 2.8 mm × 1.75 mm (L × W × H); recommended footprint includes 2.6 mm × 1.6 mm solder pads with 1.2 mm spacing and soldermask-defined areas.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive DC input | Connected to current-limiting resistor or constant-current driver; polarity must be observed to avoid reverse breakdown (max VR = 5 V) |
| Cathode (K) | Ground return path | Common reference for LED current loop; requires low-impedance PCB trace to minimize voltage drop and thermal rise |
Key Features
| Feature | Design Value |
|---|---|
| Non-diffused lens | Enables precise coupling to light pipes and edge-lit panels without scattering loss |
| Luminous intensity ratio ≤ 1.6 | Ensures tight brightness matching (IVmax/IVmin) within one tape reel for uniform panel appearance |
| AEC-Q101 qualification | Validates suitability for automotive interior lighting where vibration, thermal cycling, and long service life are critical |
| JEDEC level 2a preconditioning | Confirms moisture sensitivity level (MSL) compliance for safe reflow soldering without popcorning |
| IR reflow compatible | Withstands peak temperatures up to 260 °C per J-STD-020C, supporting high-volume automated assembly |
Applications
| Automotive Dashboard Backlighting | Office Equipment Indicators |
|---|---|
Use Scenario: Illuminating segmented symbols and analog gauge markings in vehicle instrument clusters. IC Role / Device Role / Timing Role: Discrete yellow light source driven by microcontroller GPIO or dedicated LED driver IC. Use Value: High luminous intensity (112–280 mcd) and ±60° viewing angle ensure legibility across wide driver viewing angles under varying ambient light. | Use Scenario: Status indication on printers, scanners, and multifunction devices. IC Role / Device Role / Timing Role: Standalone visual feedback element powered by low-voltage system rails. Use Value: Low forward voltage (2.0–2.6 V) and 30 mA max current enable direct drive from 3.3 V MCU outputs with minimal external components. |
| Telecom Device Backlighting | A/V Equipment Front Panel Indicators |
Use Scenario: Backlighting keypad legends and status LEDs on telephones and fax machines. IC Role / Device Role / Timing Role: Primary visible emitter in compact SMD layout with no optical diffuser required. Use Value: Non-diffused lens delivers focused output ideal for coupling into molded plastic light guides with >85% transmission efficiency. | Use Scenario: Power-on, mute, and input-select indicators on audio receivers and video displays. IC Role / Device Role / Timing Role: High-reliability discrete LED selected for long operational lifetime (>50,000 h at 25 °C). Use Value: AEC-Q101 qualification and –40 °C to +100 °C operating range ensure stable performance in consumer enclosures subject to thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar yellow SMD LED applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LYT676-R1S2 | Same luminous intensity bin (R1), identical dominant wavelength and PLCC-2 package; Osram-branded equivalent with matched optical specs | No functional difference in automotive or office indicator use; differs only in branding and supply chain origin | Select LYT676-R1S2 when dual-sourcing from Osram is required for BOM diversification |
| VLME31S1T1-GS08 | Higher luminous intensity bin (S1: 180–355 mcd), same wavelength and package; 70% higher typical output than VLME31R1S2-GS08 | Suitable where increased brightness is needed without changing PCB layout; may require resistor recalibration to maintain 20 mA drive | Choose VLME31S1T1-GS08 for enhanced visibility in high-ambient-light environments like outdoor kiosks |
Compared with VLME31R1S2-GS08, LYT676-R1S2 offers identical photometric and mechanical specifications for seamless second-source procurement, while VLME31S1T1-GS08 provides higher luminance at the cost of tighter current regulation requirements.
Availability
VLME31R1S2-GS08 is available at Aetrix Electronics and suitable for automotive dashboard backlighting, office equipment indicators, and telecom device status lighting requiring stable component supply and AEC-Q101-compliant reliability.
Supply support for VLME31R1S2-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 MOSFETs, and precision resistors.
The VLME31-series belongs to Vishay's standard SMD LED product line, engineered for high-brightness yellow emission in automotive, industrial, and consumer indicator applications with emphasis on binning consistency and reflow process compatibility.
FAQ
What is the luminous intensity range of the VLME31R1S2-GS08 at 20 mA?
The VLME31R1S2-GS08 has a luminous intensity range of 112–280 mcd at 20 mA forward current, corresponding to the R1 brightness bin per Vishay's classification table. This range ensures consistent visual output across units shipped on the same tape reel, with IVmax/IVmin ≤ 1.6. The VLME31R1S2-GS08 is tested using a 25 ms current pulse with ±11% measurement accuracy.
Is the VLME31R1S2-GS08 qualified for automotive applications?
Yes, the VLME31R1S2-GS08 is AEC-Q101 qualified, having passed stress tests including temperature cycling, humidity bias, and mechanical shock per automotive reliability standards. It operates from –40 °C to +100 °C and supports 30 mA DC forward current, making it suitable for dashboard backlighting and switch illumination in passenger vehicles. The VLME31R1S2-GS08 meets these requirements without derating under nominal conditions.
What is the dominant wavelength specification for the VLME31R1S2-GS08?
The dominant wavelength of the VLME31R1S2-GS08 is specified as 581–594 nm at 20 mA, placing it firmly in the yellow region of the visible spectrum. This range aligns with industry-standard color coding for status indicators and complies with binning groups 1–6 defined in the datasheet. The VLME31R1S2-GS08 also has a peak wavelength of 590 nm, confirming spectral centering within the yellow band.
Can the VLME31R1S2-GS08 be used with standard reflow soldering processes?
Yes, the VLME31R1S2-GS08 is compatible with IR reflow, vapor phase, and wave soldering per CECC 00802 and J-STD-020. Its MSL level is JEDEC 2a, requiring moisture-sensitive handling; the recommended Pb-free reflow profile peaks at 245 °C (max 260 °C for ≤100 s). The VLME31R1S2-GS08 must be baked if exposed to ambient conditions exceeding 672 hours at <30 °C/60% RH before reflow.
What is the viewing angle of the VLME31R1S2-GS08 and how does it affect optical design?
The VLME31R1S2-GS08 has an angle of half intensity of ±60°, meaning luminous intensity drops to 50% at 60° off-axis. This wide viewing angle supports uniform illumination across broad surfaces such as LCD segments or keypad legends without requiring secondary optics. The VLME31R1S2-GS08 uses a non-diffused lens, so its beam pattern is Lambertian-ideal for direct coupling to light pipes but not suited for spot illumination.
VLME31R1S2-GS08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Semiconductor Opto Division
- Series:
- VLME31
- Package/Case:
- 2-SMD, J-Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Color:
- Yellow
- Configuration:
- Standard
- Lens Color:
- -
- Lens Transparency:
- Clear
- Millicandela Rating:
- 196mcd
- Lens Style:
- Round with Flat Top
- Lens Size:
- 2.40mm Dia
- Voltage - Forward (Vf) (Typ):
- 2V
- Current - Test:
- 20mA
- Viewing Angle:
- 120°
- Mounting Type:
- Surface Mount
- Wavelength - Dominant:
- 588nm
- Wavelength - Peak:
- 590nm
- Features:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 2-PLCC
- Size / Dimension:
- 3.00mm L x 2.80mm W
VLME31R1S2-GS08 FAQ
1.How can I place an order for VLME31R1S2-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VLME31R1S2-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 VLME31R1S2-GS08 reliable?
The price and inventory of VLME31R1S2-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLME31R1S2-GS08 is usually 5 days.
3.What payment methods are accepted for VLME31R1S2-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLME31R1S2-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VLME31R1S2-GS08?
VLME31R1S2-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VLME31R1S2-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 VLME31R1S2-GS08?
For technical support, including VLME31R1S2-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLME31R1S2-GS08 requirements.
6.How does Aetrix verify that VLME31R1S2-GS08 is sourced from the original manufacturer or authorized distributors?
All VLME31R1S2-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 VLME31R1S2-GS08 meets industry standards.
7.What is the process for return or replacement of VLME31R1S2-GS08?
All VLME31R1S2-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VLME31R1S2-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 VLME31R1S2-GS08 part is unused and in its original packaging.
Return procedure for VLME31R1S2-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VLME31R1S2-GS08 Tags
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LTST-C281KRKT
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150060GS75000
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150060VS75000
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150060AS75000
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150060YS75000
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150060SS75000
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150060BS75000
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151031VS06000
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151033RS03000
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150080BS75000
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150080GS75000
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150141GS73100
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