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Home › Mercury short-arc lamps › HBO 3500 W/HK

OSRAM HBO 3500 W/HK — mercury short-arc lamp, 3.5 kW

UV exposure and lithography ('other systems')

Rated power3500 W
Lamp voltage55 V
Lamp current63 A
Arc gap (cold)7.0 mm
Overall length280 mm
Light centre length142.7 mm
Bulb diameter70 mm
Base / connectiondouble-ended, with connector
Burn positionanode on top
Rated life1000 h
ApplicationUV exposure and lithography ('other systems')
–+cathodeanodeOverall length A = 280 mmLight centre length B = 142.7 mmBulb ØD = 70 mmArc gap G = 7.0 mm
OSRAM HBO 3500 W/HK — Schematic, not to scale. Dimensions shown are the published values for this part number. The light-centre reference end differs between lamp types; confirm against the original drawing.

Need a HBO 3500 W/HK replacement?

Send the part number and your exposure tool model. We check power, base, dimensions and burn position against the original and quote within 24 hours.

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Lamps with closely matching published data

Same power class and voltage/current within a few percent. This is not a statement of interchangeability — base, cable, length and light-centre length must also match your lamphouse. Send us both part numbers and we will check.

Part numberPowerVoltageCurrentØ mmLength mm
Advanced Radiation HSA-3500 TAM3500 W55 V64 A71286

Other mercury lamps of similar power

USHIO USH-3502MAOSRAM HBO 3500 W/PILOSRAM HBO 3500 W/PIOSRAM HBO 3501 W/PIOSRAM HBO 4000 W/PLOSRAM HBO 3500 W/MRAdvanced Radiation HSA-3500 TAM

Frequently asked

What is the OSRAM HBO 3500 W/HK used for?

It is a 3500 W super-high-pressure mercury short-arc lamp used for uv exposure and lithography ('other systems').

Can you supply a replacement for the OSRAM HBO 3500 W/HK?

Send us the part number, a photo of the lamp label and your exposure tool model. We match power, voltage, current, base, cable, overall length and light-centre length against the original before we quote, and state warranty hours on the quote.

How often should an exposure mercury lamp be replaced?

Typical rated life for high-power lithography and exposure lamps is 500 to 2,250 hours depending on type. UV output falls and arc stability degrades with age, which shows up as longer exposure times and non-uniformity, so plan replacement at rated life.

Safety: mercury short-arc lamps are under high pressure and contain mercury. Handle with face shield and gloves, keep the protective cover on until installed, and return used lamps for mercury recycling.

Specifications as published in: OSRAM product datasheet (microlithography, other systems) (source). Older types may be discontinued by the manufacturer; data is given for identification only. Lamps supplied by Kilowatt Lamps are compatible replacements and are not made by or affiliated with OSRAM.

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