1N6845U3 Compliant Qualified Levels: JAN, JANTX, and JANTXV 45 Volts, 30 Amp Schottky Rectifier Ceramic Surface Mount Qualified per MIL-PRF-19500/682 DESCRIPTION This low-profile 1N6845U3 Schottky rectifier device is military qualified up to a JANTXV level for high-reliability applications. U3 (SMD-0.5) Package Important: For the latest information, visit our website http://www.microsemi.com. FEATURES * Surface mount equivalent of JEDEC registered 1N6845. * * Low profile ceramic SMD. JAN, JANTX, JANTXV qualifications available per MIL-PRF-19500/682. * RoHS compliant by design. APPLICATIONS / BENEFITS * * * * High surge rating. Low reverse leakage current. Low forward voltage. Low power losses. o MAXIMUM RATINGS @ T C = +25 C unless otherwise noted Parameters/Test Conditions Junction and Storage Temperature Thermal Resistance Junction-to-Case Working Peak Reverse Voltage (1) Average Rectified Output Current @ T C = +55 C Non-Repetitive Sinusoidal Surge Current @ t p = 8.3 ms Note: Symbol Value T J and T STG R JC V RWM IO I FSM -65 to +150 2.0 45 30 300 1. Derate I O as shown in Figure 2 where derating starts at T C = +55 C for rated V RWM . Higher temperature derating curves also apply to progressively lower voltages as shown. Unit o o C C/W V A A MSC - Lawrence 6 Lake Street, Lawrence, MA 01841 Tel: 1-800-446-1158 or (978) 620-2600 Fax: (978) 689-0803 MSC - Ireland Gort Road Business Park, Ennis, Co. Clare, Ireland Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298 Website: www.microsemi.com T4-LDS-0128, Rev. 3 (6/13/13) (c)2013 Microsemi Corporation Page 1 of 4 1N6845U3 MECHANICAL and PACKAGING * * * * * * CASE: Ceramic and gold over nickel plated steel. TERMINALS: Gold over nickel plated tungsten/copper. MARKING: Part number, date code, A = anode. POLARITY: See schematic on last page. WEIGHT: Approximately 0.9 grams. See Package Dimensions on last page. PART NOMENCLATURE JAN 1N6845 U3 Reliability Level JAN = JAN Level JANTX = JANTX Level JANTXV = JANTXV Level Blank = Commercial SMD-0.5 Surface Mount JEDEC type number (see Electrical Characteristics table) Symbol CJ IF IR TJ VF VR SYMBOLS & DEFINITIONS Definition Junction Capacitance: The junction capacitance in pF at a specified frequency (typically 1MHz) and specified voltage. Forward Current: The forward current dc value, no alternating component. Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature. Junction Temperature: The temperature of a semiconductor junction. Forward Voltage: The forward voltage the device will exhibit at a specified current (typically shown as maximum value). Reverse Voltage: The reverse voltage dc value, no alternating component. o ELECTRICAL CHARACTERISTICS @ T C = +25 C unless otherwise noted Parameters / Test Conditions Symbol Forward Voltage* I F = 10 A (pk) I F = 20 A (pk) I F = 40 A (pk) o I F = 10 A (pk), T C = +100 C I F = 20 A (pk), T C = +100 C I F = 10 A (pk), T C = -55 C Reverse Current V R = 45 V V R = 45 V, T C = +100 C Junction Capacitance VR = 5 V f = 1 MHz V SIG = 50 mV (p-p) * Pulse test: Pulse width 300 sec, duty cycle 2%. T4-LDS-0128, Rev. 3 (6/13/13) (c)2013 Microsemi Corporation VF Min. Max. 0.65 0.72 0.86 0.55 0.67 0.78 Unit V IR 0.1 10.0 mA CJ 800 pF Page 2 of 4 1N6845U3 VF in volts GRAPHS Forward Current in Amps Sinewave Operation Maximum Io Rating (A) FIGURE 1 1N6845U3 Typical V F at I O T C (C) (Case) FIGURE 2 Temperature - Current Derating Curve T4-LDS-0128, Rev. 3 (6/13/13) (c)2013 Microsemi Corporation Page 3 of 4 1N6845U3 PACKAGE DIMENSIONS NOTES: 1. Dimensions are in inches. 2. Millimeters are given for information only. 3. In accordance with ASME Y14.5M, diameters are equivalent to x symbology. Schematic T4-LDS-0128, Rev. 3 (6/13/13) (c)2013 Microsemi Corporation Symbol BL BW CH LH LL1 LL2 LS1 LS2 LW1 LW2 Q1 Q2 Term 1 Term 2 Term 3 DIMENSIONS INCH MILLIMETERS Min Max Min Max 0.395 0.405 10.03 10.29 0.291 0.301 7.39 7.65 0.112 0.124 2.84 3.15 0.010 0.020 0.25 0.51 0.220 0.230 5.59 5.84 0.115 0.125 2.92 3.18 3.81 BSC 0.150 BSC 1.91 BSC 0.075 BSC 0.281 0.291 7.14 7.39 0.090 0.100 2.29 2.54 0.030 0.76 0.030 0.76 Common Cathode Anode (See Schematic) Anode (See Schematic) Page 4 of 4