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| * 1N6638US,1N6642US, 1N6643US AVAILABLE IN JAN, JANTX, JANTXV AND JANS PER MIL-PRF-19500/578 * 1N6638U,1N6642U, 1N6643U AVAILABLE IN JAN, JANTX, JANTXV AND JANS PER MIL-PRF-19500/578 * SWITCHING DIODES * NON-CAVITY GLASS PACKAGE * METALLURGICALLY BONDED 1N6638U & US 1N6642U & US 1N6643U & US MAXIMUM RATINGS Operating Temperature: -65C to +175C Storage Temperature: -65C to +175C Operating Current: 300 mA Derating: 4.6 mA/C Above TEC = + 110C Surge Current: IFSM = 2.5A, half sine wave, Pw = 8.3ms ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified. V BR TYPES @ IR =100 A V RWM V F1 IFM =10 mA (Pulsed) V (pk) 1N6638U & US 1N6642U & US 1N6643U & US 150 100 75 V (pk) 125 75 50 V dc 0.8 0.8 1.0 V dc 1.1 1.2 1.2 (Pulsed) mA 200 100 100 V F2 @ I F2 tfr IF =50 mA ns 20 20 20 trr IR = 10 mA IF = 10 mA IREC = 1 mA ns 4.5 5.0 6.0 DIM D F G S MILLIMETERS MIN MAX 1.78 2.16 0.48 0.71 4.19 4.95 0.08MIN. INCHES MIN MAX 0.070 0.085 0.019 0.028 0.165 0.195 0.003MIN. FIGURE 1 DESIGN DATA CASE: D-5D, Hermetically sealed glass case, per MIL-PRF- 19500/578 LEAD FINISH: Tin / Lead I R1 TYPES VR = 20 V nA dc I R2 @V R = V RWM A dc I R3 V R = 20 V TA = 150C A dc I R4 V R = V RWM TA = 150C A dc C T1 VR= 0V pF C T2 VR= 1.5V pF THERMAL RESISTANCE: (ROJEC): 50 C/W maximum at L = 0 THERMAL IMPEDANCE: (ZOJX): 25 C/W maximum POLARITY: Cathode end is banded. 1N6638U & US 1N6642U & US 1N6643U & US 35 25 50 0.5 0.5 0.5 50 50 75 100 100 160 2.5 5.0 5.0 2.0 2.8 2.8 MOUNTING SURFACE SELECTION: The Axial Coefficient of Expansion (COE) of this device is approximately + 4PPM / C. The COE of the Mounting Surface System should be selected to provide a suitable match with this device. 6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841 PHONE (978) 620-2600 FAX (781) 689-0803 WEBSITE: http://www.microsemi.com 157 IN6638U&US, IN6642U&US 1000 and IN6643U&US 100 IF - Forward Current - (mA) 10 0C 15 100 C 0.1 .2 .3 .4 .5 .6 .7 .8 .9 VF - Forward Voltage (V) FIGURE 2 Typical Forward Current vs Forward Voltage 1.0 1.1 1.2 1000 100 150C IR - Reverse Current - (A) 10 100 1 C 0.1 25C .01 -65C -65C 1 25 C NOTE : All temperatures shown on graphs are junction temperatures .001 20 40 60 80 100 120 140 Percent of Reverse Working Voltage (%) FIGURE 3 Typical Reverse Current vs Reverse Voltage 158 |
Price & Availability of JANS1N6643US
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