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1N746 thru 1N759A, -1 and 1N4370 thru 1N4372A, -1 DO-35 Silicon 500 mW Zener Diodes SCOTTSDALE DIVISION

DESCRIPTION The popular 1N746 thru 1N759A and 1N4370 thru 1N4372A series of 0.5 watt Zener Voltage Regulators provides a selection from 2.4 to 12 volts in standard 5% or 10% tolerances as well as tighter tolerances identified by different suffix letters on the part number. These glass axial-leaded DO-35 Zeners are also available with an internal-metallurgical-bond option by adding a“-1” suffix. These are also available in JAN, JANTX, and JANTXV military qualifications. Microsemi also offers numerous other Zener products to meet higher and lower power applications. IMPORTANT: For the most current data, consult MICROSEMI’s website: www.wendangwang.com

APPEARANCE

WWW . Microsemi .C OM

DO-35 (DO-204AH)

FEATURES JEDEC registered 1N746 thru 1N759A and 1N4370 thru 1N4372A series Internal metallurgical bond option available by adding a“-1” suffix Also available in JAN, JANTX, and JANTXV qualifications per MIL-PRF-19500/127 by adding the JAN, JANTX, or JANTXV prefixes to part numbers for desired level of screening as well as–1” suffix; (e.g. JANTX1N751A-1, JANTXV1N758C-1, etc.) Military Surface Mount equivalents also available in DO-213AA by adding a UR-1 suffix in addition to the JAN, JANTX, and JANTXV prefix; e.g. JANTX1N962BUR-1 (see separate data sheet) Commercial Surface Mount equivalents available as MLL746 to MLL759A and MLL4370 to MLL4372A including the“-1” suffix in the DO-213AA MELF style package (consult factory for others) DO-7 glass body axial-leaded Zener equivalents are also available

APPLICATIONS/ BENEFITS Regulates voltage over a broad operating current and temperature range Selection from 2.4 to 12 V Standard voltage tolerances are plus/minus 5% with A suffix identification and 10% with no suffix Tight tolerances available in plus or minus 2% or 1% with C or D suffix respectively Flexible axial-lead mounting terminals Nonsensitive to ESD per MIL-STD-750 Method 1020 Minimal capacitance (see Figure 3) Inherently radiation hard as described in Microsemi MicroNote 050

MAXIMUM RATINGS Operating and Storage temperature: -65 C to+175 C Thermal Resistance: 250ºC/W junction to lead at 3/8 (10 mm) lead length from body, or 310ºC/W junction to ambient when mounted on FR4 PC board (1 oz Cu) with 4 mm2 copper pads and track width 1 mm, length 25 mm Steady-State Power: 0.5 watts at TL< 50oC 3/8 inch (10 mm) from body or 0.48 W at TA< 25ºC when mounted on FR4 PC board as described for thermal resistance above (also see Figure1) Forward voltage@200 mA: 1.1 volts Solder Temperatures: 260ºC for 10 s (max) ºº

MECHANICAL AND PACKAGING CASE: Hermetically sealed axial-lead glass DO-35 (DO-204AH) package TERMINALS: Leads, tin-lead plated solderable per MIL-STD-750, method 2026 POLARITY: Ca

thode indicated by band. Diode 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) WEIGHT: 0.2 grams See package dimensions on last page

1N746–759A 1N4370– 4372A (DO-35)

Copyright 2003 10-31-2003 REV B

Microsemi Scottsdale Division 8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503

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