TECHNICAL DATA SHEET 6 Lake Street, Lawrence, MA 01841 1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803 Website: http: //www.microsemi.com Gort Road Business Park, Ennis, Co. Clare, Ireland Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298 - TEMPERATURE COMPENSATED ZENER REFERENCE DIODES - 9.0 VOLT NOMINAL ZENER VOLTAGE - METALLURGICALLY BONDED ZENER Qualified per MIL-PRF-19500/156 DEVICES LEVELS 1N935 thru 1N938B 1N935B-1 thru 1N938B-1 JAN JANTX JANTXV JANS MAXIMUM RATING AT 25C Operating Temperature: -65C to +175C Storage Temperature: -65C to +175C DC Power Dissipation: 500mW @ +50C Power Derating: 4mW / C above +50C REVERSE LEAKAGE CURRENT IR = 10A @ 25C & VR = 6Vdc ELECTRICAL CHARACTERISTICS (TA = 25C, unless otherwise specified) MIL-PRF19500/156 JEDEC TYPE NUMBER ZENER VOLTAGE VZ @ IZT ZENER TEST CURRENT IZT MAXIMUM ZENER IMPEDACE (Note 1) ZZT VOLTAGE TEMPERATURE STABILITY 3 V ZT MAXIMUM (Note 2) TEMPERATURE RANGE EFFECTIVE TEMPERATURE COEFFICIENT DO-35 VOLTS mA OHMS mV C % / C 1N935B-1 1N935 1N935A 1N935B 8.55 - 9.45 8.55 - 9.45 8.55 - 9.45 7.5 7.5 7.5 20 20 20 67 139 184 0 to + 75 -55 to +100 -55 to +150 0.01 0.01 0.01 1N936B-1 1N936 1N936A 1N936B 8.55 - 9.45 8.55 - 9.45 8.55 - 9.45 7.5 7.5 7.5 20 20 20 34 70 92 0 to + 75 -55 to +100 -55 to +150 0.005 0.005 0.005 1N937B-1 1N937 1N937A 1N937B 8.55 - 9.45 8.55 - 9.45 8.55 - 9.45 7.5 7.5 7.5 20 20 20 13 28 37 0 to + 75 -55 to +100 -55 to +150 0.002 0.002 0.002 1N938B-1 1N938 1N938A 1N938B 8.55 - 9.45 8.55 - 9.45 8.55 - 9.45 7.5 7.5 7.5 20 20 20 6.7 13.9 19 0 to + 75 -55 to +100 -55 to +150 0.001 0.001 0.001 NOTE 1: Zener impedance is derived by superimposing on IZT A 60Hz rms a.c. current equal to 10% of IZT NOTE 2: The maximum allowable change observed over the entire temperature range i.e., the diode voltage will not exceed the specified mV at any discrete temperature between the established limits, per JEDEC standard No. 5. LDS-0155 Rev. 1 (100346) Page 1 of 3 TECHNICAL DATA SHEET 6 Lake Street, Lawrence, MA 01841 1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803 Website: http: //www.microsemi.com Gort Road Business Park, Ennis, Co. Clare, Ireland Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298 GRAPHS FIGURE 1 FIGURE 2 TL, Lead temperature (C) 3/8" from body POWER DERATING CURVE ZENER IMPEDANCE VS. OPERATING CURRENT FIGURE 3 TYPICAL CHANGE OF TEMPERATURE COEFFICIENT WITH CHANGE IN OPERATING CURRENT LDS-0155 Rev. 1 (100346) Page 2 of 3 TECHNICAL DATA SHEET 6 Lake Street, Lawrence, MA 01841 1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803 Website: http: //www.microsemi.com Gort Road Business Park, Ennis, Co. Clare, Ireland Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298 PACKAGE DIMENSIONS NOTE: 1. Dimensions are in inches. 2. Millimeters are given for general information only. 3. Package contour optional within BD and length BL. Heat slugs, if any, shall be included within this cylinder but shall not be subject to minimum limit of BD. 4. Within this zone, lead diameter may vary to allow for lead finishes and irregularities, other than heat slugs. 5. In accordance with ASME Y14.5M, diameters are equivalent to x symbology. Symbol BD BL LD LL LL1 Dimensions Inches Millimeters Min Max Min Max .060 .107 1.52 2.72 .120 .300 3.05 7.62 .018 .023 0.46 0.58 1.000 1.500 25.40 38.10 0.050 1.27 Notes FIGURE 1. Physical dimensions 1N935B-1, 1N937B-1 through 1N940B-1 (DO-7 and DO-35). DESIGN DATA Case: Hermetically sealed glass case DO-35 outline. Lead Material: Copper clad steel. Lead Finish: Tin / Lead Polarity: Diode to be operated with the banded (cathode) end postive. Mounting Position: Any. LDS-0155 Rev. 1 (100346) Page 3 of 3 3 3 4