Other
Part of: 85413000 — Thyristors, diacs and triacs, other than photosensitive devices
896328 · 1994-04-10 — The tariff classification of a diac, a silicon controlled rectifier (SCR), a triac, and a Schottky barrier rectifier from Taiwan
Your letter describes the subject merchandise as follows: 1. The Diac, identified in the submitted literature as PDA 30, PDA40 and PDA60, is described as glass passivated three-layer diac for triggering thyristors. The diac has a breakover current of 100uA maximum. 2. The SCR , identified in the submitted literature as PCR100-4, PCR100-6 and PCR-8, is described as a semiconductor device designed for line-powered control application in relay lamp drivers, small motor controls, and gate drivers for large transistors. The SCR is rated at 0.8 amps. 3. The triac, identified in the submitted…
086518 · 1990-11-09 — Reconsideration Of HQ 085027 (January 31, 1990); Thyristor Modules; Semiconductor Devices; Static Converters, Parts; High Voltage Direct Current (HVDC) Power Conversion Stations; Firing Circuitry; Voltage Divider Circuitry; Heatsinks
HQ 086518 November 9, 1990 CLA-2 CO:R:C:G 086518 CMS CATEGORY: Classification TARIFF NO.: 8504.40.00 8504.90.00 8541.30.00 8541.50.00 Mr. Philip Y. Simons, Esq. Freeman, Wasserman & Schneider 90 John Street New York, NY 10038 RE: Reconsideration Of HQ 085027 (January 31, 1990); Thyristor Modules; Semiconductor Devices; Static Converters, Parts; High Voltage Direct Current (HVDC) Power Conversion Stations; Firing Circuitry; Voltage Divider Circuitry; Heatsinks Dear Mr. Simons, This is in response to your request dated February 9, 1990, on behalf of ABB Power Transmission, Inc. (ABB), for the…
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