1N5913BG 1N5956BG Screening in reference to Available Axial-Leaded 1.5 Watt Glass Zener Diodes MIL-PRF-19500 available DESCRIPTION The 1N5913BG-5956BG series of 1.5 watt Zeners provides voltage regulation in a selection from 3.3 to 200 volts with a variety of tolerances available. They are also available in various military equivalent screening levels for high reliability. These glass encapsulated Zeners with a G suffix provide hermetic-sealed qualities and higher rated temperature beyond that optionally provided in equivalent plastic-body constructions (P suffix) for the same JEDEC part numbers. Both package options are available from Microsemi. Important: For the latest information, visit our website 1N5913BG 1N5956BG MECHANICAL and PACKAGING CASE: Hermetically sealed voidless hard glass with tungsten slugs. TERMINALS: Tin/lead or RoHS compliant matte/tin over copper. 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: Approximately 340 milligrams. package dimensions on last page. See PART NOMENCLATURE MQ 1N5913 B G (e3) Reliability Level* RoHS Compliance MQ e3 = RoHS compliant MX Blank = non-RoHS compliant MV MSP Glass Casing Blank = Commercial *(refer to MicroNote 129) Tolerance Level A = 10 % JEDEC type number B = 5 % (See Electrical Characteristics C = 2 % table) D = 1% SYMBOLS & DEFINITIONS Symbol Definition V Zener Voltage: The Zener voltage the device will exhibit at a specified current (I ) in its breakdown region. Z Z 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 Regulator Impedance: The small signal impedance of the diode when biased to operate in its breakdown region with Z or Z ZT ZK I applied at I or I respectively. This has also been known as Zener or dynamic impedance (Z or Z ). ZT Z ZK ZT ZK Forward Voltage: The positive dc anode-cathode voltage the device will exhibit at a specified forward current. V F Reverse Current: The dc current flowing from the external circuit into the cathode terminal at the specified voltage V . I R R I Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating. ZM T4-LDS-0300, Rev. 1 (6/6/13) 2013 Microsemi Corporation Page 2 of 5