ECCN
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3A228
3A228 Switching devices, as follows (see List of Items Controlled).
- Category
- Category 3—Electronics
- Product group
- A. “End Items,” “Equipment,” “Accessories,” “Attachments,” “Parts,” “Components,” and “Systems”
Reason for Control
- NP
- AT
Official text
License Requirements
Reason for Control:
NP, AT
Control(s) Country Chart (See Supp. No. 1 to part 738)
- NP applies to entire entry NP Column 1
- AT applies to entire entry AT Column 1
List Based License Exceptions (See Part 740 for a description of all license exceptions)
LVS: N/A
GBS: N/A
List of Items Controlled
Related Controls: (1) See ECCNs 3E001 (“development” and “production”) and 3E201 (“use”) for technology for items controlled under this entry.
(2) Also see ECCN 3A991.k.
Related Definitions: N/A
Items: a. Cold-cathode tubes, whether gas filled or not, operating similarly to a spark gap, having all of the following characteristics:
a.1. Containing three or more electrodes;
a.2. Anode peak voltage rating of 2.5 kV or more;
a.3. Anode peak current rating of 100 A or more; and
a.4. Anode delay time of 10 µs or less.
Technical Note:
3A228.a includes gas krytron tubes and vacuum sprytron tubes.
b. Triggered spark-gaps having both of the following characteristics:
b.1. An anode delay time of 15 µs or less; and
b.2. Rated for a peak current of 500 A or more.
c. Modules or assemblies with a fast switching function having all of the following characteristics:
c.1. Anode peak voltage rating greater than 2 kV;
c.2. Anode peak current rating of 500 A or more; and
c.3. Turn-on time of 1 µs or less.
ecfr-15cfr774-supp1-2026-08-28 · effective 2026-08-28
Issue date 2026-08-28. Amendment date 2026-08-28.
- eCFR Commerce Control List (15 CFR 774, Supplement No. 1)www.ecfr.gov
- eCFR versioner XML captured at ingestwww.ecfr.gov
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