Vishay Semiconductor Opto Division VLDTG1232G-08

Overview

VLDTG1232G-08 from Vishay Semiconductors is a true green dome lens SMD LED using InGaN-on-sapphire chip technology, delivering 7100–16,000 mcd luminous intensity at 20 mA, with dominant wavelength 515–541 nm and ±9° viewing angle - deployed in high-visibility indicator and backlighting applications.

For engineers reviewing the VLDTG1232G-08 datasheet, VLDTG1232G-08 pinout, VLDTG1232G-08 application, or VLDTG1232G-08 equivalent, this page provides verified optical, electrical, thermal, and packaging data - including forward voltage (2.6–3.4 V), ESD rating (2 kV), reflow compatibility (J-STD-020), and JEDEC level 2a preconditioning compliance.

Technical Context

This device operates as a surface-mount light-emitting diode with gullwing leadform, optimized for high-brightness visual indication under DC forward current up to 30 mA and ambient temperatures from –40 °C to +100 °C. Its optical performance is defined by narrow spectral bandwidth (28 nm), stable dominant wavelength tolerance (±1 nm), and luminous intensity ratio ≤1.6 per packing unit.

Thermal management relies on a junction-to-ambient thermal resistance of 400 K/W when mounted on a PCB pad >16 mm². The LED emits highly concentrated blue-light-free true green radiation, requiring photobiological safety compliance per IEC 62471 in end-use systems.

Key Specifications

Pinout & Package

VLDTG1232G-08 uses a gullwing surface-mount package (2.3 × 2.3 × 2.8 mm) with exposed copper thermal pad and standardized anode/cathode terminals. Dimensions comply with IPC-7351 solder pad recommendations.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VLDTG1232G-08, VLDTG1232G-09 offers identical photometric performance with alternate traceability, while TLHG5200 trades narrower viewing angle and tighter IV binning for broader angular coverage and relaxed VF tolerance - impacting optical design margin and driver voltage headroom.

Availability

VLDTG1232G-08 is available at Aetrix Electronics and suitable for traffic signals and signs, smoke detectors, and interior lighting controls requiring stable component supply, consistent luminous intensity binning, and JEDEC-compliant reflow processing.

Supply support for VLDTG1232G-08 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 designs and manufactures discrete semiconductors and optoelectronics, emphasizing reliability, precision, and application-specific optimization for industrial, automotive, and consumer markets.

The VLDTG1232G-08 belongs to Vishay's dome lens SMD LED product line, engineered for high-brightness visual indication in space-constrained, high-reliability applications where color accuracy and thermal stability are critical.

FAQ

What is the maximum continuous forward current for VLDTG1232G-08?

The absolute maximum DC forward current for VLDTG1232G-08 is 30 mA at ambient temperatures ≤60 °C. Operation above this limit risks accelerated degradation and thermal runaway. At higher ambient temperatures, derating is required per Figure 1 in the datasheet - for example, maximum IF drops to ~22 mA at 85 °C ambient. Always verify thermal design with the specified 400 K/W junction-to-ambient resistance.

Does VLDTG1232G-08 require current-limiting circuitry?

Yes, VLDTG1232G-08 must be driven with a current-limiting mechanism - either a series resistor or constant-current driver - because its forward voltage varies from 2.6 V to 3.4 V at 20 mA. Without limiting, minor supply variations could cause current excursion beyond the 30 mA absolute maximum, leading to irreversible damage. Typical designs use a 100–220 Ω resistor with 5 V supply.

Is VLDTG1232G-08 compatible with lead-free reflow soldering?

Yes, VLDTG1232G-08 is qualified for lead-free reflow per J-STD-020, with a peak temperature of 245 °C (maximum 260 °C for ≤100 s). The recommended profile includes ramp-up ≤3 °C/s, preheat 150–200 °C, soak 183–200 °C for 60–120 s, and liquidus time ≥30 s at ≥217 °C. Moisture sensitivity level is JEDEC level 2a - dry-packaged reels require baking if exposed >672 hours at <30 °C/60% RH.

What does the "-08" suffix indicate in VLDTG1232G-08?

The "-08" suffix in VLDTG1232G-08 denotes the gullwing leadform variant within the VLD.1232 series. It distinguishes this version from the reverse gullwing "-09" variant (e.g., VLDTG1232G-09). Both share identical optical, electrical, and thermal specifications - only mechanical orientation and tape/reel labeling differ. The suffix does not indicate brightness bin, wavelength bin, or voltage grade.

How is luminous intensity binned for VLDTG1232G-08?

VLDTG1232G-08 is binned by luminous intensity per packing unit, with groups EA (7100–9000 mcd), EB (9000–11,200 mcd), FA (11,200–14,000 mcd), FB (14,000–18,000 mcd), GA (18,000–22,400 mcd), and GB (22,400–28,000 mcd). Each reel contains only one intensity group, and IVmax/IVmin ≤1.6 ensures tight consistency. Wavelength binning follows separate groups (3–6) covering 515–541 nm.