Vishay Semiconductor Opto Division TLHY5201

Overview

TLHY5201 from Vishay Semiconductors is a high-efficiency yellow LED in a 5 mm tinted non-diffused T-1¾ package, delivering 10–50 mcd luminous intensity at 10 mA, with dominant wavelength 581–594 nm and ±14° viewing angle-designed for status indication and legend lighting in industrial control panels.

For engineers reviewing the TLHY5201 datasheet, TLHY5201 pinout, TLHY5201 application, or TLHY5201 equivalent, this page provides verified optical/electrical specs, absolute maximum ratings, categorized luminous intensity groups, wavelength binning, and real-world use context for reliable visual signaling design.

Technical Context

The TLHY5201 uses GaAsP-on-GaP epitaxial technology to achieve stable yellow emission with tight wavelength control (581–594 nm dominant, 585 nm peak) and low forward voltage (2–3 V at 20 mA). Its ±14° half-intensity angle enables focused beam output without secondary optics.

Rated for DC and pulsed operation up to 1 A surge current (10 μs), it supports high peak drive while maintaining 100 mW power dissipation limit and 350 K/W junction-to-ambient thermal resistance-enabling robust performance across -40 °C to +100 °C ambient range.

Key Specifications

Pinout & Package

TLHY5201 is housed in a standard 5 mm (T-1¾) radial-leaded plastic package with cathode-indicating flat side and stand-off feature for consistent PCB mounting height. Leads are tin-plated copper with 2.54 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLHY5200 and TLHY5205, the TLHY5201 offers balanced luminous intensity (16–60 mcd) ideal for general-purpose indication where moderate brightness and cost efficiency must coexist-neither over-spec'd nor marginal for typical indoor panel applications.

Availability

TLHY5201 is available at Aetrix Electronics and suitable for status lights, off/on indicators, and legend lighting requiring stable component supply, consistent color matching, and long-term manufacturability in industrial HMI and instrumentation programs.

Supply support for TLHY5201 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.

The TLHY5201 belongs to Vishay's TLH.52.. standard LED family, engineered for general-purpose indicating and lighting applications where consistent photometric performance, mechanical robustness, and long-term color stability are essential.

FAQ

What is the dominant wavelength range of TLHY5201?

The TLHY5201 has a dominant wavelength range of 581–594 nm, measured at 10 mA forward current. This specification ensures consistent yellow chromaticity across production lots and enables reliable color coding in multi-LED user interfaces. The TLHY5201's wavelength binning supports visual uniformity in applications like status panels and legend lighting where hue consistency matters.

What is the maximum continuous forward current rating for TLHY5201?

The TLHY5201 is rated for a maximum continuous forward current of 30 mA at ambient temperatures ≤ 65 °C. This limit ensures thermal stability and long service life under DC drive conditions. Exceeding 30 mA risks accelerated degradation; the TLHY5201's 100 mW power dissipation ceiling and 350 K/W thermal resistance further define its safe operating envelope.

Does TLHY5201 have wavelength or intensity binning?

Yes, TLHY5201 is categorized in both luminous intensity groups (IV_min/IV_max ≤ 0.5 per packing unit) and wavelength groups (581–594 nm dominant). This dual binning ensures visual uniformity across LEDs used together-critical for TLHY5201 deployments in multi-indicator panels, control consoles, and branded UIs where mismatched brightness or hue would degrade perceived quality.

What package type and dimensions does TLHY5201 use?

TLHY5201 uses a standard 5 mm (T-1¾) radial-leaded plastic package with Ø5 ± 0.15 mm lens diameter, 8.7 ± 0.3 mm overall length, and 2.54 mm lead pitch. It features a cathode-indicating flat side and 1.1 mm ± 0.15 mm stand-off height-ensuring repeatable placement and solder joint geometry in automated assembly. The TLHY5201's package complies with JEDEC standards for through-hole LED mounting.

Can TLHY5201 be driven with pulsed current?

Yes, TLHY5201 supports pulsed operation with a surge forward current rating of 1 A for pulse widths ≤ 10 μs. This capability allows brief high-brightness flashes without exceeding average power limits. When using pulsed drive, duty cycle and thermal management must be validated per application; the TLHY5201's junction-to-ambient thermal resistance (350 K/W) remains the key constraint for sustained pulsed performance.