1N5913BUR-1 1N5956BUR-1 (aka CDLL5913 CDLL5956) Screening in Metallurgically Bonded Glass Surface Mount reference to Available MIL-PRF-19500 1.5 Watt Zener Diodes available DESCRIPTION This surface mountable 1.5 W Zener diode series in the JEDEC DO-213AB package is similar in electrical features to the JEDEC registered 1N5913B through 1N5956B axial-leaded package for 3.3 to 200 V. It is an ideal selection for applications of high density and low parasitic requirements. Due to its glass hermetic qualities and metallurgically enhanced internal contacts, it may also be used for high reliability applications when required by a source control drawing (SCD) or screening in accordance with MIL-PRF-19500 as described in Features below. DO-213AB MELF Package Important: For the latest information, visit our website 1N5913BUR-1 1N5956BUR-1 (aka CDLL5913 CDLL5956) MECHANICAL and PACKAGING CASE: Hermetically sealed voidless hard glass with tungsten slugs. TERMINALS: Tin/lead or RoHS compliant matte/tin plating over copper. Solderable per MIL-STD-750, method 2026. MARKING: Cathode band only. 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-481-B with 12mm tape (add TR suffix to part number). Consult factory for quantities. WEIGHT: Approximately 0.05 grams. package dimensions on last page. See PART NOMENCLATURE MQ 1N5913 B UR -1 (e3) Reliability Level RoHS Compliance MQ e3 = RoHS compliant MX Blank = non-RoHS compliant MV MSP Metallurgically Bonded Blank = Commercial *(refer to MicroNote 129) MELF Surface Mount JEDEC type number Tolerance Level (See Electrical Characteristics A = 10 % table) B = 5 % C = 2 % 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 (IZ), at a specified test point (IZT), near breakdown knee (IZK). 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 V Forward Voltage: The positive dc anode-cathode voltage the device will exhibit at a specified forward current. F I Reverse Current: The dc current flowing from the external circuit into the cathode terminal at the specified voltage V . R R I Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating. ZM T4-LDS-0300-1, Rev. 1 (6/6/13) 2013 Microsemi Corporation Page 2 of 5