Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p143
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 420003–423040

and specially designed encoder rings, discs or scales therefor;
           3. A. 001. g. Solid‑state pulsed power switching thyristor devices and 'thyristor modules', using either electrically, optically, or electron radiation controlled switch methods and having any of the following:
1. A maximum turn‑on current rate of rise (di/dt) greater than 30,000 A/s and off‑state voltage greater than 1,100 V; or
2. A maximum turn‑on current rate of rise (di/dt) greater than 2,000 A/s and having all of the following:
a. An off‑state peak voltage equal to or greater than 3,000 V; and
b. A peak (surge) current equal to or greater than 3,000 A.
Note 1: 3A001.g. includes:
 a. Silicon Controlled Rectifiers (SCRs)
 b. Electrical Triggering Thyristors (ETTs)
 c. Light Triggering Thyristors (LTTs)
 d. Integrated Gate Commutated Thyristors (IGCTs)
 e. Gate Turn‑off Thyristors (GTOs)
 f. MOS Controlled Thyristors (MCTs)
 g. Solidtrons
Note 2: 3A001.g. does not apply to thyristor devices and 'thyristor modules' incorporated into equipment designed for civil railway or "civil aircraft" applications.
           Technical Note:
           For the purposes of 3A001.g., a 'thyristor module' contains one or more thyristor devices.
           3. A. 001. h. Solid‑state power semiconductor switches, diodes, or 'modules', having all of the following:
1. Rated for a maximum operating junction temperature greater than 488 K (215°C);
              3. A. 001. h. 2. Repetitive peak off‑state voltage (blocking voltage) exceeding 300 V; and
3. Continuous current greater than 1 A;
Note 1: Repetitive peak off‑state voltage in 3A001.h. includes drain to source voltage, collector to emitter voltage, repetitive peak reverse voltage and peak repetitive off‑state blocking voltage.
Note 2: 3A001.h. includes:
a. Junction Field Effect Transistors (JFETs)
b. Vertical Junction Field Effect Transistors (VJFETs)
c. Metal Oxide Semiconductor Field effect Transistors (MOSFETs)
d. Double Diffused Metal Oxide Semiconductor Field Effect Transistor (DMOSFET)
e. Insulated Gate Bipolar Transistor (IGBT)
f. High Electron Mobility Transistors (HEMTs)
g. Bipolar Junction Transistors (BJTs)
h. Thyristors and Silicon Controlled Rectifiers (SCRs)
i. Gate Turn‑Off Thyristors (GTOs)
j. Emitter Turn‑Off Thyristors (ETOs)
k. PiN Diodes
l. Schottky Diodes
Note 3: 3A001.h. does not apply to switches, diodes, or 'modules', incorporated into equipment designed for civil automobile, civil railway or "civil aircraft" applications.
Technical Note:
For the purposes of 3A001.h., 'modules' contain one or more solid‑state power semiconductor switches or diodes.
3. A. 001. i. Intensity, amplitude, or phase electro‑optic modulators, designed for analogue signals and having any of the following:
1. A maximum operating frequency of more than 10 GHz but less than 20 GHz, an optical insertion loss equal to or less than 3 dB and having any of the following:
a. A 'half‑wave voltage' ('Vπ') less than 2.7 V when measured at a frequency of 1 GHz or below; or
b. A 'Vπ' of