AXUVHS5 is an ultra-high-speed silicon photodiode from Opto Diode, a division of ITW, in Camarillo, California. It combines a 1 mm × 1 mm (1 mm²) AXUV-series active area with a threaded SMA-connector package, and its datasheet specifies a rise time of 700 ps maximum into a 50 Ω load — making it suited to electron detection and other fast-transient measurements. The specifications on this page come from the current AXUVHS5 datasheet, Revision October 28, 2024.
Availability note: AXUVHS5 does not currently appear in Opto Diode’s product catalog or online product listings, and Opto Diode publishes no replacement or cross-reference for it. If you are sourcing this part, contact Opto Diode to confirm current availability, lead time, or a recommended alternative — quote requests are typically answered within 1–2 business days.
AXUVHS5 key specifications
Electro-optical characteristics at 25 °C, per the AXUVHS5 datasheet (Rev. Oct 28, 2024):
| Parameter | Test conditions | Value |
|---|---|---|
| Active area | 1 mm × 1 mm | 1 mm² |
| Rise time | RL = 50 Ω, VR = 52 V | 700 ps max |
| Capacitance | VR = 0 V | 15 pF typ / 50 pF max |
| Dark current | VR = 52 V | 1 nA typ / 10 nA max |
| Reverse breakdown voltage, VR | IR = 1 µA | 55 V min |
| Operating/storage temperature | Ambient / nitrogen or vacuum | −10 to +40 °C / −20 to +80 °C |
Responsivity is published as typical curves rather than a single figure: a typical electron-response curve (energy axis 100 eV to 100 keV, with plotted data from roughly 200 eV to about 30 keV), a typical EUV–UV photon-response curve covering 0–250 nm, and a typical UV–VIS–NIR responsivity curve covering 200–1100 nm. See the datasheet linked below for the curves.
Package and handling
AXUVHS5 is built into a threaded SMA-connector body — 0.375 in (9.5 mm) hex, 0.871 in (22.12 mm) overall length, with two 1/4-36 UNS threaded sections and marked cathode and anode ends. The datasheet specifies a maximum mounting torque of 5 inch-pounds; exceeding it can permanently damage the device and voids the warranty. Temperatures exceeding the rated ranges may create oxide growth on the active area, which over time compromises responsivity to low-energy radiation and wavelengths below 150 nm. Per the datasheet’s REACH note, the article contains lead (Pb) above 0.1% as part of a copper alloy.
What AXUVHS5 is used for
The datasheet positions AXUVHS5 as “ideal for electron detection” with ultra-high speed as its defining feature. It belongs to Opto Diode’s AXUV family of absolute silicon photodiodes, which are used for electron detection, synchrotron radiation monitoring, and electron reticle inspection. The combination of small active area and sub-nanosecond rise time suits measurements where timing resolution matters more than collection area — for example resolving fast pulsed signals directly into a 50 Ω line via the integral SMA connection.
Current high-speed AXUV alternatives
Opto Diode’s current catalog carries larger-area high-speed AXUV photodiodes, all listed on the AXUV product page:
If your application specifically needs the 1 mm² area or the threaded SMA form factor, ask Opto Diode whether AXUVHS5 can be supplied or what the recommended substitute is — custom configurations are a core capability.
Datasheet
AXUVHS5 datasheet (PDF, Rev. October 28, 2024) — the current published revision. Specifications are subject to change without notice; confirm current values with Opto Diode before designing in.
Frequently asked questions
Is the AXUVHS5 photodiode still available?
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AXUVHS5 does not appear in Opto Diode’s current product catalog or online listings, and Opto Diode publishes no replacement or cross-reference for it. Contact Opto Diode directly to confirm current availability, lead time, or a recommended alternative; quote requests are typically answered within 1-2 business days.
What is the AXUVHS5?
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AXUVHS5 is an ultra-high-speed 1 mm² silicon AXUV photodiode in a threaded SMA-connector package, specified with a maximum rise time of 700 ps into 50 ohms at 52 V reverse bias, and positioned by its datasheet as ideal for electron detection.
What are the current high-speed AXUV alternatives?
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Opto Diode’s current AXUV lineup includes the AXUV20HS1, a high-speed photodiode with a 5 mm diameter circular active area of 20 mm², and the AXUV63HS1 and AXUV63HS1-CH high-speed photodiodes. All are listed on the AXUV product category page with current datasheets.
What package does the AXUVHS5 use?
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A threaded SMA-connector body with a 0.375 inch (9.5 mm) hex and 0.871 inch (22.12 mm) overall length, using a 1/4-36 UNS thread with marked cathode and anode ends. Maximum recommended mounting torque is 5 inch-pounds.
Sourcing AXUVHS5 or a high-speed electron-detection photodiode? Opto Diode typically responds within 1–2 business days.
Reviewed and updated August 2026.