Vishay Semiconductor Opto Division TLCY5200

Overview

TLCY5200 from Vishay Semiconductors is a clear, non-diffused 5 mm yellow ultrabright LED using AlInGaP-on-GaAs technology, delivering 1350–4000 mcd luminous intensity at 50 mA, with dominant wavelength 585–597 nm and ±15° viewing angle - deployed in CHMSL, traffic signals, and instrumentation indicators.

For engineers reviewing the TLCY5200 datasheet, TLCY5200 pinout, TLCY5200 application, or TLCY5200 equivalent, key selection criteria include luminous intensity binning (FF–UU groups), thermal resistance (300 K/W), junction temperature rating (125 °C), ESD withstand (2 kV), and forward voltage range (2.1–2.7 V at 50 mA).

Technical Context

The TLCY5200 employs AlInGaP-on-GaAs die architecture to achieve high radiant efficiency in the yellow spectrum (585–597 nm dominant wavelength), with spectral bandwidth of 17 nm and temperature coefficients of –3.5 mV/K for VF and +0.1 nm/K for λd.

Its ±15° half-intensity viewing angle and untinted non-diffused lens are optimized for directional visibility in panel indicators and stop-light applications, while its 300 K/W junction-to-ambient thermal resistance supports operation up to 125 °C junction temperature under 50 mA DC drive.

Key Specifications

Pinout & Package

Package: 5 mm radial-leaded, clear non-diffused epoxy lens, standard T-1¾ (Ø5.0 mm) package with 2.54 mm lead pitch and 8.7 mm body height per Vishay drawing 6.544-5258.07-4.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLHY5200 and WP7113SURK, the TLCY5200 offers superior directional intensity control (±15°), higher thermal resilience (125 °C vs. unspecified or 100 °C), and factory-binned luminous intensity - making it the preferred choice for safety-critical and outdoor-visible applications demanding repeatability and longevity.

Availability

TLCY5200 is available at Aetrix Electronics and suitable for central high mounted stop lights, traffic signal modules, and instrumentation front panel indicators requiring stable component supply, consistent luminous intensity binning, and extended-temperature reliability.

Supply support for TLCY5200 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 TLCY5200 belongs to Vishay's ultrabright 5 mm LED product line, engineered for high-intensity, high-temperature, and high-consistency visual signaling in automotive, transportation, and industrial environments.

FAQ

What is the maximum continuous forward current for the TLCY5200?

The TLCY5200 has a maximum DC forward current of 50 mA at ambient temperatures ≤85 °C. Exceeding this value risks accelerated degradation and thermal runaway due to its 300 K/W thermal resistance. Derating is required above 85 °C ambient, per Figure 1 in the Vishay datasheet (Doc. #81354). The TLCY5200 must not be operated beyond 50 mA in continuous mode without active thermal management.

Does the TLCY5200 have a specified ESD rating, and what standard does it meet?

Yes, the TLCY5200 has an ESD-withstand voltage of up to 2 kV, tested per JESD22-A114-B (Human Body Model). This rating is verified during manufacturing and applies to both anode and cathode terminals. The TLCY5200's robustness eliminates the need for external ESD protection in most board-level implementations, simplifying circuit design for instrumentation and automotive indicator applications.

How is luminous intensity binned for the TLCY5200, and why does it matter?

The TLCY5200 is binned into 15 luminous intensity groups (FF through UU), each specifying a min/max mcd range at 50 mA - e.g., FF = 1350–2700 mcd. Binning ensures brightness consistency within a single packaging unit, preventing visible mismatch in multi-LED arrays. This is essential for traffic signals and CHMSL where regulatory compliance requires uniform photometric performance across all units.

What is the dominant wavelength range of the TLCY5200, and how is it measured?

The TLCY5200 has a dominant wavelength range of 585–597 nm, measured at 50 mA with a 25 ms current pulse per Vishay specification. This range places it firmly in the standardized yellow band used for caution and stop indications. Wavelength is binned into four groups (0–3), with each bag containing only one group - ensuring chromatic consistency critical for regulatory acceptance in transportation lighting.

Can the TLCY5200 be used in reverse-biased conditions, and if so, for how long?

The TLCY5200 datasheet notes that short-term reverse bias is permissible, with a maximum reverse voltage of 5 V. However, no duration or duty cycle is specified for reverse operation, and it is not intended for bidirectional use. Reverse conduction should be avoided in normal operation; the TLCY5200 is designed strictly as a forward-biased light emitter, and prolonged reverse bias may cause irreversible damage.