1N757A1JANTX TR Microchip

1N746A-1 1N759A-1, 1N4370A-1 1N4372A-1 Qualified Levels: JAN, JANTX, and Silicon 500 mW Zener Diodes Available on JANTXV commercial Qualified per MIL-PRF-19500/127 versions DESCRIPTION This popular series of 500 mW Zener voltage regulators provides a selection from 2.4 to 12 volts in a standard 5% tolerance as well as available tighter 2% and 1% tolerances. These axial-leaded, glass DO-35 Zeners feature an internal metallurgical bond and are military qualified to the JAN, JANTX, and JANTXV level. A RoHS compliant commercial grade only version is also available. Important: For the latest information, visit our website 1N746A-1 1N759A-1, 1N4370A-1 1N4372A-1 MECHANICAL and PACKAGING CASE: Hermetically sealed axial-lead glass DO-35 (DO-204 AH) package. TERMINALS: Tin-lead 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). WEIGHT: Approximately 0.2 grams See Package Dimensions on last page. PART NOMENCLATURE JAN 1N746 A -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 A = 5% C = 2% D = 1% SYMBOLS & DEFINITIONS Symbol Definition I Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature. R I , I , I Regulator Current: The dc regulator current (I ), at a specified test point (I ), near breakdown knee (I ). Z ZT ZK Z ZT ZK I Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating. ZM I Maximum Zener Surge Current: The non-repetitive peak value of Zener surge current at a specified wave form. ZSM V Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current. F V Reverse Voltage: The reverse voltage dc value, no alternating component. R V Zener Voltage: The Zener voltage the device will exhibit at a specified current (I ) in its breakdown region. Z Z Dynamic Impedance: The small signal impedance of the diode when biased to operate in its breakdown region at a Z or Z ZT ZK specified rms current modulation (typically 10% of I or I ) and superimposed on I or I respectively. ZT ZK ZT ZK T4-LDS-0288, Rev. 1 (5/23/13) 2013 Microsemi Corporation Page 2 of 6