Vishay Semiconductor Opto Division VLMB41P2Q2-GS08

Overview

VLMB41P2Q2-GS08 from Vishay Semiconductors is a blue surface-mount LED using InGaN-on-sapphire technology, housed in a PLCC-2 package with ±60° viewing angle, 56–112 mcd luminous intensity at 10 mA, and 462–476 nm dominant wavelength. It delivers stable optical output for automotive dashboard backlighting, office equipment indicators, and LCD symbol illumination under industrial ambient conditions.

For engineers reviewing the VLMB41P2Q2-GS08 datasheet, VLMB41P2Q2-GS08 pinout, VLMB41P2Q2-GS08 application, or VLMB41P2Q2-GS08 equivalent, this page provides verified optical parameters, AEC-Q101 qualification status, JEDEC level 2a moisture sensitivity handling, thermal resistance (360 K/W), and tape-and-reel packaging details (GS08 = 1500 pcs/reel).

Technical Context

This device operates as a forward-biased light-emitting diode with no reverse operation capability. Its optical performance is defined at pulsed test conditions (25 ms pulse width) and calibrated per JESD22-A114-B ESD standards (2 kV HBM). The PLCC-2 package uses a white thermoplastic lead frame with clear epoxy-filled reflector cavity to maximize blue light extraction efficiency.

Thermal management relies on PCB pad area >16 mm² to achieve R_thJA = 360 K/W. Forward voltage ranges from 3.2 V to 4.2 V at 20 mA, with temperature coefficients of −3 mV/K for V_F and −0.4 %/K for I_V, enabling predictable brightness and bias stability across −40 °C to +100 °C operating range.

Key Specifications

Pinout & Package

The VLMB41P2Q2-GS08 uses a 2-pin PLCC-2 surface-mount package with dimensions 3.5 × 2.8 mm and 0.9 mm height. Pin identification follows standard LED polarity: Anode (A) and Cathode (C), marked by chamfered corner and internal die placement per Vishay mechanical drawing 20242.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VLMB41P2Q2-GS08, VLMB41P1Q2-GS08 offers reduced minimum brightness but identical thermal and reliability specs, while OSRAM LBT67C shifts wavelength tolerance and requires MSL requalification-neither is pin-compatible nor drop-in, and both demand full optical and process validation before substitution.

Availability

VLMB41P2Q2-GS08 is available at Aetrix Electronics and suitable for automotive dashboard backlighting, office equipment indicator panels, and LCD symbol backlighting requiring stable component supply, consistent luminance binning, and AEC-Q101-compliant traceability.

Supply support for VLMB41P2Q2-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 for industrial and automotive markets.

The VLMB41P2Q2-GS08 belongs to Vishay's standard SMD LED product line, designed specifically for cost-effective, high-yield surface-mount assembly of blue indicator and backlighting functions in harsh-environment applications.

FAQ

What is the maximum continuous forward current for VLMB41P2Q2-GS08?

The absolute maximum DC forward current for VLMB41P2Q2-GS08 is 20 mA at ambient temperatures ≤80 °C. Exceeding this rating risks accelerated lumen depreciation and junction overheating beyond the 110 °C limit. Derating is required above 80 °C per Fig. 1 in the datasheet, and operation at 20 mA assumes adequate PCB thermal relief (pad area >16 mm²).

Is VLMB41P2Q2-GS08 suitable for automotive applications?

Yes, VLMB41P2Q2-GS08 is AEC-Q101 qualified, meaning it has passed stress tests for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life required for automotive electronics. It is explicitly listed for dashboard and switch backlighting in Vishay's Applications section and supports operation from −40 °C to +100 °C.

What does the "P2Q2" suffix indicate in VLMB41P2Q2-GS08?

The "P2" denotes the luminous intensity bin (56–71 mcd minimum), and "Q2" specifies the dominant wavelength bin (90–112 mcd typical, 470–476 nm). These bins ensure consistent optical performance across reels-no mixing of intensity or wavelength groups occurs within a single GS08 tape reel.

Can VLMB41P2Q2-GS08 be soldered using lead-free reflow processes?

Yes, VLMB41P2Q2-GS08 is compatible with lead-free reflow soldering per J-STD-020, with a peak package body temperature limit of 260 °C for ≤30 seconds. The recommended profile (Fig. 11) includes ramp rates ≤3 °C/s, soak at 150–200 °C, and time above liquidus of 60–150 s. Preconditioning to JEDEC level 2a is mandatory before reflow.

What is the thermal resistance junction-to-ambient for VLMB41P2Q2-GS08?

The thermal resistance junction-to-ambient (R_thJA) for VLMB41P2Q2-GS08 is 360 K/W when mounted on a PCB with copper pad area >16 mm². This value assumes standard FR-4 substrate and natural convection cooling; reducing pad size or adding thermal vias will increase R_thJA and require corresponding current derating to maintain T_j ≤110 °C.