Vishay Semiconductor Opto Division VLWR9932

Overview

VLWR9932 from Vishay Semiconductors is a high-flux, non-diffused red LED in the TELUX power series, built with AlInGaP-on-Si technology. It delivers 6000–9000 mln luminous flux at 70 mA, with dominant wavelength 611–634 nm and forward voltage 1.95–2.67 V. Designed for automotive exterior lighting including stop and tail signals, it operates from −40 °C to +110 °C with R_thJP = 90 K/W.

For engineers reviewing the VLWR9932 datasheet, VLWR9932 pinout, VLWR9932 application, or VLWR9932 equivalent, key selection criteria include luminous flux binning (K group), forward voltage classification (Z or 3 group), SAE/ECE red color compliance, thermal resistance under heatsinked mounting, and AEC-Q101 qualification for automotive deployment.

Technical Context

The VLWR9932 is a surface-mount, single-die red LED optimized for high ambient temperature operation and precise optical control. Its ±45° angle of half intensity and 100° total included angle enable focused beam shaping with external reflectors or lightguides, while its 7.62 mm square TELUX package supports wave soldering per CECC 00802.

Thermally, it features junction-to-pin thermal resistance of 90 K/W and junction-to-ambient resistance of 200 K/W (with 70 mm² cathode heatsink). It is binned for luminous flux, forward voltage, and dominant wavelength - each tube contains only one selection code combination to ensure optical homogeneity in production assemblies.

Key Specifications

Pinout & Package

Package: TELUX - 7.62 mm × 7.62 mm square surface-mount LED with anode marking (A) and cathode pad (C); designed for automatic insertion and wave soldering. Mechanical tolerances ≤ ±0.3 mm support precision optical alignment.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VLWR9932, VLWR9933 offers higher luminous output in the same thermal and electrical envelope, while TLUR6400 trades automotive qualification and flux for lower cost and reduced thermal performance - making VLWR9932 the optimal balance of certified reliability, brightness, and manufacturability for Tier-1 automotive suppliers.

Availability

VLWR9932 is available at Aetrix Electronics and suitable for automotive exterior lighting, traffic signal systems, and industrial status indication requiring stable component supply, consistent binning, and AEC-Q101 traceability.

Supply support for VLWR9932 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 leader in discrete semiconductors and passive components, specializing in high-reliability optoelectronics, power MOSFETs, and precision resistors.

The VLWR9932 belongs to Vishay's TELUX power LED product line, engineered specifically for automotive exterior lighting applications demanding high flux, color accuracy, and thermal resilience in harsh environments.

FAQ

What is the minimum forward voltage specification for VLWR9932?

The minimum forward voltage for VLWR9932 is 1.95 V at 70 mA and 25 °C ambient. This value is measured under standardized pulse conditions and reflects the lower bound of the Z or 3 forward voltage classification group. Designers should use this minimum to verify driver compliance and ensure sufficient headroom in low-voltage battery scenarios. The VLWR9932 maintains stable VF behavior across temperature due to its −2 mV/K coefficient.

Is VLWR9932 qualified for automotive use under AEC-Q101?

Yes, VLWR9932 is fully AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature operating life, and mechanical shock. This qualification confirms its suitability for under-hood and exterior lighting applications in passenger vehicles and commercial trucks. The VLWR9932 datasheet (Doc. #81817, Rev. 2.0) explicitly states AEC-Q101 compliance, and batch records include traceable qualification data.

What does the "K" luminous flux bin mean for VLWR9932?

The "K" luminous flux bin for VLWR9932 specifies a minimum of 6000 mln and maximum of 9700 mln at 70 mA. This bin is used in production tubes to ensure uniform brightness across assemblies - each tube contains only VLWR9932 devices within the K group, preventing mixed-flux batches. The VLWR9932 K-bin supports consistent photometric performance in multi-LED lamp modules without post-assembly sorting.

Can VLWR9932 be wave soldered, and what are the limits?

Yes, VLWR9932 is qualified for wave soldering per CECC 00802, with a maximum peak temperature of 260 °C for up to 5 seconds at 1.5 mm from the package body. Preheat must be limited to 100 °C for 30 seconds. These parameters are validated for the TELUX package and ensure solder joint integrity without die damage or phosphor degradation. The VLWR9932's construction supports repeat reflow and wave processes in high-volume automotive PCB assembly.

How is dominant wavelength binned for VLWR9932, and why does it matter?

VLWR9932 is binned into dominant wavelength groups 1 (611–618 nm), 2 (614–622 nm), or 3 (616–634 nm), with group 3 covering the full SAE/ECE red spectral range. Binning ensures color consistency across production lots and prevents visible hue variation in multi-LED arrays. For VLWR9932, using group 3 guarantees compliance with both SAE J578 and ECE R37 without optical filtering - critical for automotive certification and brand-specific red identity.