1N4679/TR Microchip

1N4678-1 thru 1N4717-1 Screening in reference to Available on 500 mW AXIAL-LEADED ZENER DIODES commercial MIL-PRF-19500 versions available DESCRIPTION The 1N4678-1 thru 1N4717-1 series of 0.5 watt Zener voltage regulators provides a selection from 1.8 to 43 volts in standard 5% tolerances as well as tighter tolerances. These axial- leaded glass DO-35 Zeners are available with an internal metallurgical bond similar to military requirements for similar Zeners. Microsemi also offers numerous other Zener products to meet higher and lower power applications. Important: For the latest information, visit our website 1N4678-1 thru 1N4717-1 MECHANICAL and PACKAGING CASE: Hermetically sealed axial-lead glass DO-35 (DO-204AH) package. TERMINALS: Leads tin-lead plated or RoHS compliant matte-tin plating available (on commercial grade only) solderable per MIL-STD-750, method 2026. POLARITY: Cathode indicated by band where diode is to be operated with the banded end positive with respect to the opposite end for Zener regulation. MARKING: Part number. 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 MQ 1N4678 C -1 (e3) Reliability Level RoHS Compliance MQ = JAN Level e3 = RoHS Compliant (available MX = JANTX Level on commercial grade only) MV = JANTXV Level Blank = non-RoHS Compliant MSP = JANS Level Blank = Commercial Metallurgically Bonded JEDEC type number Zener Voltage Tolerances (see Electrical Characteristics Blank = 5% table) C = 2% D = 1% SYMBOLS & DEFINITIONS Symbol Definition I or I Regulator Current: The dc regulator current (I ), at a specified test point (I ), near breakdown knee (I ). ZT ZK Z ZT ZK Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature. I R I Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating. ZM T Temperature Solder Pad: The maximum solder temperature that can be safely applied to the terminal. SP V Reverse Voltage: The reverse voltage dc value, no alternating component. R Zener Voltage: The Zener voltage the device will exhibit at a specified current (I ) in its breakdown region. V Z Z T4-LDS-0240, Rev. 1 (112022) 2011 Microsemi Corporation Page 2 of 5