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Home > Products > Optoelectronics > LED Indication - Discrete

Vishay Semiconductor Opto Division VLMD31L2N1-GS08

Name: VLMD31L2N1-GS08
Brand: Vishay Semiconductor Opto Division
SKU: VLMD31L2N1-GS08
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VLMD31L2N1-GS08

Manufacturer:: Vishay Semiconductor Opto Division

Category:: LED Indication - Discrete

Package:: 2-SMD, J-Lead

Datasheet:: VLMD31L2N1-GS08.pdf

Description:: LED RED CLEAR 2PLCC SMD

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Product details

Overview

VLMD31L2N1-GS08 from Vishay Semiconductors is a red surface-mount LED in PLCC-2 package, featuring luminous intensity of 14–35.5 mcd at 10 mA, dominant wavelength of 648 nm, and forward voltage of 1.8–2.2 V at 20 mA. It delivers narrow brightness binning (L2/N1 group), ±60° viewing angle, and AEC-Q101 qualification for automotive dashboard backlighting.

For engineers reviewing the VLMD31L2N1-GS08 datasheet, VLMD31L2N1-GS08 pinout, VLMD31L2N1-GS08 application, or VLMD31L2N1-GS08 equivalent, key selection criteria include luminous intensity binning (L2/N1), PLCC-2 thermal resistance (400 K/W), JEDEC level 2a preconditioning, and compatibility with IR reflow per J-STD-020.

Technical Context

This device uses GaAlAs-on-GaAs technology to achieve high-efficiency red emission at 648 nm dominant wavelength with low forward voltage (1.8–2.2 V). Its non-diffused lens enables precise coupling to light pipes and LCD backlight guides, while the white thermoplastic PLCC-2 package provides high reflectivity and thermal stability up to 100 °C junction temperature.

The VLMD31L2N1-GS08 is binned for luminous intensity ratio ≤1.6 within a reel (IV_max/IV_min), ensuring consistent brightness across production units. It supports surge forward current up to 0.5 A (10 μs pulse) and exhibits temperature coefficients of −1.8 mV/K for V_F and +0.05 nm/K for λ_d.

Key Specifications

Parameter	Value and Actual Design Meaning
Luminous intensity	14–35.5 mcd at 10 mA - defines brightness range for indicator visibility under standard drive conditions
Dominant wavelength	648 nm - ensures consistent red chromaticity for automotive and telecom signaling compliance
Forward voltage	1.8–2.2 V at 20 mA - enables low-power operation with minimal voltage headroom requirements
Viewing angle	±60° - provides wide but controlled illumination suitable for flat-panel backlight uniformity
Junction-to-ambient R_th	400 K/W on >16 mm² PCB pad - determines thermal derating needed for continuous 30 mA operation
ESD withstand	2 kV HBM per JESD22-A114-B - supports handling in standard assembly environments without special ESD controls
AEC-Q101 qualified	Validated for automotive underhood and cabin applications - confirms reliability for dashboard and switch backlighting

Pinout & Package

Package: PLCC-2 SMD with white thermoplastic body, non-diffused lens, and lead frame embedded in reflective housing. Dimensions: 2.6 × 1.6 mm footprint, 1.2 mm height (see Vishay drawing 20415).

Pin/Terminal	Circuit Role	Design Meaning
Anode	Positive DC input	Connects to current-limiting resistor or constant-current driver output; polarity must be observed to avoid reverse breakdown
Cathode	Ground return path	Common reference for LED bias; requires low-impedance PCB trace to minimize voltage drop and thermal rise

Key Features

Feature	Design Value
Luminous intensity binning (L2/N1)	Ensures ≤1.6 IV_max/IV_min ratio per reel - critical for uniform backlight appearance in multi-LED arrays
Non-diffused lens	Enables direct coupling to light pipes and edge-lit LCD guides - improves optical efficiency over diffused alternatives
AEC-Q101 qualification	Validates performance across −40 to +100 °C ambient - required for automotive instrument cluster integration
JEDEC level 2a preconditioning	Confirms moisture sensitivity level - mandates dry storage or baking before reflow to prevent popcorning
PLCC-2 with white thermoplastic	Provides high internal reflectivity (>90%) and thermal stability - maintains luminous output over lifetime

Applications

Automotive Dashboard Backlighting	Telecom Indicator Lighting
Use Scenario: Illuminating segmented symbols and analog gauge markings in vehicle instrument clusters. IC Role / Device Role / Timing Role: Discrete red light source driven by constant-current LED driver ICs (e.g., AS1107, TPS6106x). Use Value: L2/N1 binning ensures uniform symbol brightness; AEC-Q101 qualification guarantees operation at 100 °C under hood conditions.	Use Scenario: Status indication on telephone handsets, fax machines, and VoIP endpoints. IC Role / Device Role / Timing Role: Standalone visual feedback element powered directly from microcontroller GPIO or dedicated LED driver. Use Value: ±60° viewing angle provides clear visibility at oblique angles; low 20 mA drive current minimizes power draw in battery-powered devices.
Audio/Video Equipment Indicators	Office Equipment Backlighting
Use Scenario: Power-on, mute, and input-select indicators on AV receivers, amplifiers, and streaming devices. IC Role / Device Role / Timing Role: Low-voltage DC-coupled emitter in optocoupler-isolated or microcontroller-driven indicator circuits. Use Value: 1.8–2.2 V forward voltage allows direct drive from 3.3 V logic rails with minimal series resistance; RoHS-compliant termination supports green manufacturing.	Use Scenario: Keypad and function-key backlighting in printers, scanners, and multifunction peripherals. IC Role / Device Role / Timing Role: Edge-coupled light source aligned with light-guide channels beneath membrane switches. Use Value: Non-diffused lens maximizes coupling efficiency into acrylic light guides; PLCC-2 low profile (1.2 mm) fits thin bezel designs.

Automotive Dashboard Backlighting

Telecom Indicator Lighting

Use Scenario: Illuminating segmented symbols and analog gauge markings in vehicle instrument clusters.

IC Role / Device Role / Timing Role: Discrete red light source driven by constant-current LED driver ICs (e.g., AS1107, TPS6106x).

Use Value: L2/N1 binning ensures uniform symbol brightness; AEC-Q101 qualification guarantees operation at 100 °C under hood conditions.

Use Scenario: Status indication on telephone handsets, fax machines, and VoIP endpoints.

IC Role / Device Role / Timing Role: Standalone visual feedback element powered directly from microcontroller GPIO or dedicated LED driver.

Use Value: ±60° viewing angle provides clear visibility at oblique angles; low 20 mA drive current minimizes power draw in battery-powered devices.

Audio/Video Equipment Indicators

Office Equipment Backlighting

Use Scenario: Power-on, mute, and input-select indicators on AV receivers, amplifiers, and streaming devices.

IC Role / Device Role / Timing Role: Low-voltage DC-coupled emitter in optocoupler-isolated or microcontroller-driven indicator circuits.

Use Value: 1.8–2.2 V forward voltage allows direct drive from 3.3 V logic rails with minimal series resistance; RoHS-compliant termination supports green manufacturing.

Use Scenario: Keypad and function-key backlighting in printers, scanners, and multifunction peripherals.

IC Role / Device Role / Timing Role: Edge-coupled light source aligned with light-guide channels beneath membrane switches.

Use Value: Non-diffused lens maximizes coupling efficiency into acrylic light guides; PLCC-2 low profile (1.2 mm) fits thin bezel designs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar red SMD LED applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LHT674-L2N1	Same luminous intensity bin (L2/N1), identical PLCC-2 package, and matching 648 nm dominant wavelength - Osram cross-reference per Vishay crossing table	No AEC-Q101 qualification documented; rated for industrial, not automotive, temperature range	Select when automotive qualification is not required and Osram supply chain preference applies
VLMD31M2P1-GS08	Higher luminous intensity (22.4–56 mcd), same package and wavelength - next brightness bin in same VLMD31 family	Requires higher current or lower series resistance to avoid overdriving; may exceed optical safety limits in confined spaces	Select when greater brightness is needed and thermal margin allows 25 mA continuous operation

Compared with VLMD31L2N1-GS08, LHT674-L2N1 offers identical photometric specs but lacks automotive qualification, while VLMD31M2P1-GS08 increases brightness at the cost of tighter thermal management and higher drive current - both require validation against board-level optical and thermal constraints.

Availability

VLMD31L2N1-GS08 is available at Aetrix Electronics and suitable for automotive dashboard backlighting, telecom indicator lighting, and office equipment keypad backlighting requiring stable component supply and consistent luminous intensity binning.

Supply support for VLMD31L2N1-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 semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in optoelectronics and power devices.

The VLMD31 series belongs to Vishay's standard SMD LED product line, engineered for applications demanding narrow brightness and color selection - particularly in automotive, telecom, and consumer interface lighting.

FAQ

What is the luminous intensity range of VLMD31L2N1-GS08 at 10 mA?

The VLMD31L2N1-GS08 has a luminous intensity range of 14–35.5 mcd at 10 mA, corresponding to its L2/N1 bin classification. This range reflects factory-measured values under standardized pulse test conditions (25 ms pulse width, ±11% measurement accuracy), and all units on a given reel fall within this ratio (IV_max/IV_min ≤ 1.6).

Is VLMD31L2N1-GS08 qualified for automotive applications?

Yes, VLMD31L2N1-GS08 is AEC-Q101 qualified, confirming its suitability for automotive applications including dashboard backlighting and switch illumination. It operates across −40 to +100 °C ambient temperature and meets stress-test requirements for humidity, thermal cycling, and mechanical shock defined in the AEC-Q101 standard.

What is the maximum continuous forward current for VLMD31L2N1-GS08?

The maximum DC forward current for VLMD31L2N1-GS08 is 30 mA at ambient temperatures ≤60 °C. At higher ambient temperatures, derating is required - for example, operation drops to ~20 mA at 85 °C ambient, as shown in Figure 1 of the datasheet. Exceeding these limits risks accelerated lumen depreciation or thermal runaway.

Does VLMD31L2N1-GS08 have a diffused or non-diffused lens?

VLMD31L2N1-GS08 features a non-diffused lens, optimized for efficient coupling into light pipes and edge-lit LCD backlights. This design preserves directional output and minimizes lateral scattering, enabling higher optical transfer efficiency compared to diffused variants - critical for space-constrained backlight assemblies.

What tape-and-reel option does VLMD31L2N1-GS08 use?

VLMD31L2N1-GS08 ships in GS08 tape-and-reel packaging: 8 mm antistatic blister tape with 1500 pieces per reel (5 × 1500 per master carton). The tape complies with DIN IEC 40 (CO) 564 and supports automatic placement equipment; polarity is marked with anode/cathode orientation per Figure 10 in the datasheet.

VLMD31L2N1-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:: Red

Configuration:: Standard

Lens Color:: -

Lens Transparency:: Clear

Millicandela Rating:: 25mcd

Lens Style:: Round with Flat Top

Lens Size:: 2.40mm Dia

Voltage - Forward (Vf) (Typ):: 1.8V

Current - Test:: 10mA

Viewing Angle:: 120°

Mounting Type:: Surface Mount

Wavelength - Dominant:: 648nm

Wavelength - Peak:: 650nm

Features:: -

Grade:: -

Qualification:: -

Supplier Device Package:: 2-PLCC

Size / Dimension:: 3.00mm L x 2.80mm W

VLMD31L2N1-GS08 FAQ

1.How can I place an order for VLMD31L2N1-GS08 through Aetrix?

Please submit a Request for Quotation (RFQ) for VLMD31L2N1-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 VLMD31L2N1-GS08 reliable?

The price and inventory of VLMD31L2N1-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VLMD31L2N1-GS08 is usually 5 days.

3.What payment methods are accepted for VLMD31L2N1-GS08?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VLMD31L2N1-GS08 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VLMD31L2N1-GS08?

VLMD31L2N1-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VLMD31L2N1-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 VLMD31L2N1-GS08?

For technical support, including VLMD31L2N1-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VLMD31L2N1-GS08 requirements.

6.How does Aetrix verify that VLMD31L2N1-GS08 is sourced from the original manufacturer or authorized distributors?

All VLMD31L2N1-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 VLMD31L2N1-GS08 meets industry standards.

7.What is the process for return or replacement of VLMD31L2N1-GS08?

All VLMD31L2N1-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VLMD31L2N1-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 VLMD31L2N1-GS08 part is unused and in its original packaging.

Return procedure for VLMD31L2N1-GS08:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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