1N957B Microchip

1N957B-1 1N992B-1 Qualified Levels*: JAN, JANTX, and Silicon 500 mW Zener Diodes Available on JANTXV commercial Qualified per MIL-PRF-19500/117 versions DESCRIPTION The popular 1N957B-1 through 1N992B-1 series of 0.5 watt Zener voltage regulators provides a selection from 6.8 to 200 volts in a standard 5%, 2% and 1% tolerance versions. These axial-leaded glass DO-35 Zeners feature an internal metallurgical bond and are available in military qualified and commercial RoHS compliant versions. Military qualified versions are available on the 1N962B-1 through 1N992B-1 range of part numbers. Important: For the latest information, visit our website 1N957B-1 1N992B-1 MECHANICAL and PACKAGING CASE: Hermetically sealed axial-lead glass DO-35 (DO-204 AH) package. TERMINALS: Tin-lead (Sn/Pb) or RoHS compliant annealed matte-tin plating (on commercial grade only). Solderable per MIL- STD-750, method 2026. MARKING: Part number. POLARITY: Cathode indicated by band. Diode to be operated with the banded end positive with respect to the opposite end for Zener regulation. TAPE & REEL option: Standard per EIA-296 (add TR suffix to part number). Consult factory for quantities. WEIGHT: 0.2 grams See Package Dimensions on last page. PART NOMENCLATURE 1N957B-1 1N961B-1 only: 1N957 B -1 (e3) JEDEC type number RoHS Compliance (see Electrical Characteristics e3 = RoHS compliant table) Blank = non-RoHS compliant Zener Voltage Tolerance Metallurgically Bonded B = 5% C = 2% D = 1% 1N962B-1 1N992B-1 only: JAN 1N962 B -1 (e3) Reliability Level RoHS Compliance JAN = JAN level e3 = RoHS compliant (available JANTX = JANTX level on commercial grade only) JANTXV = JANTXV level Blank = non-RoHS compliant Blank = Commercial Metallurgically Bonded JEDEC type number (see Electrical Characteristics table) Zener Voltage Tolerance B = 5% C = 2% D = 1% T4-LDS-0287, Rev. 1 (121795) 2012 Microsemi Corporation Page 2 of 8