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SWITCHMODESchottky Power Rectifier
SWITCHMODE Power Rectifier employs Schottky Barrier principle large area metal-to-silicon power diode. State-of-the-art geometry features epitaxial construction with oxide passivation metal overlay contact. Ideally suited rectifiers very low-voltage, high-frequency switching power supplies, free wheeling diodes polarity protection diodes. Highly Stable Oxide Passivated Junction Very Forward Voltage Drop Matched Dual Construction High Junction Temperature Capability High dv/dt Capability Excellent Ability Withstand Reverse Avalanche Energy Transients Guardring Stress Protection Epoxy Meets UL94, Electrically Isolated. Isolation Hardware Required. Recognized File #E69369(1)
MBRF2045CT
Motorola Preferred Device
SCHOTTKY BARRIER RECTIFIER AMPERES VOLTS
Mechanical Characteristics Case: Epoxy, Molded Weight: grams (approximately) Finish: External Surfaces Corrosion Resistant Terminal Leads Readily Solderable Lead Temperature Soldering Purposes: 260°C Max. Seconds Shipped units plastic tube Marking: B2045 MAXIMUM RATINGS,
Rating Peak Repetitive Reverse Voltage Working Peak Reverse Voltage Blocking Voltage Average Rectified Forward Current (Rated VR), 135°C Peak Repetitive Forward Current Diode (Rated Square Wave, kHz), 135°C Non-repetitive Peak Surge Current (Surge applied rated load conditions halfwave, single phase, Peak Repetitive Reverse Surge Current (2.0 kHz) Operating Junction Storage Temperature Voltage Rate Change (Rated Isolation Voltage second, R.H. 30%, 25°C)(2) Figure Figure 6(1) Figure Total Device IFRM IFSM IRRM Tstg dv/dt Viso1 Viso2 Viso3 Symbol VRRM VRWM IF(AV)
CASE 221D-02 ISOLATED TO-220
Value
Unit Volts
+150 10000 4500 3500 1500
Amps Amps Amps V/µs Volts
THERMAL CHARACTERISTICS,
Maximum Thermal Resistance, Junction Case Lead Temperature Soldering Purposes: from Case seconds Recognized mounting method Figure Proper strike creepage distance must provided. SWITCHMODE trademark Motorola, Inc.
Preferred devices Motorola recommended choices future best overall value.
°C/W
©RectifierInc. 1996 Data Motorola, Device
MBRF2045CT
ELECTRICAL CHARACTERISTICS,
Characteristic Maximum Instantaneous Forward Voltage Amp, 25°C) Amp, 125°C) Amp, 125°C) Maximum Instantaneous Reverse Current (Rated Voltage, 25°C) (Rated Voltage, 125°C) Pulse Test: Pulse Width Duty Cycle 2.0% Symbol 0.84 0.72 0.57 Unit Volts
INSTANTANEOUS FORWARD CURRENT (AMPS)
INSTANTANEOUS FORWARD CURRENT (AMPS)
150°C 25°C
100°C
150°C
25°C
100°C
INSTANTANEOUS VOLTAGE (VOLTS)
INSTANTANEOUS VOLTAGE (VOLTS)
Figure Maximum Forward Voltage
Figure Typical Forward Voltage
150°C REVERSE CURRENT (mA) 125°C 100°C 75°C 25°C 0.01
PEAK HALF-WAVE CURRENT (AMPS)
125°C, VRRM APPLIED BETWEEN EACH CYCLE SURGE
0.001
REVERSE VOLTAGE (VOLTS)
NUMBER CYCLES
Figure Maximum Reverse Current
Figure Maximum Surge Capability
Rectifier Device Data
MBRF2045CT
TEST CONDITIONS ISOLATION TESTS*
CLIP MOUNTED FULLY ISOLATED PACKAGE LEADS CLIP MOUNTED FULLY ISOLATED PACKAGE LEADS MOUNTED FULLY ISOLATED PACKAGE LEADS
0.107
0.107
HEATSINK 0.110 Figure Clip Mounting Position Isolation Test Number
HEATSINK
HEATSINK
Figure Clip Mounting Position Isolation Test Number
Figure Screw Mounting Position Isolation Test Number
Measurement made between leads heatsink with leads shorted together.
MOUNTING INFORMATION**
4-40 SCREW PLAIN WASHER CLIP
HEATSINK COMPRESSION WASHER HEATSINK
Screw-Mounted Figure Typical Mounting Techniques
Clip-Mounted
Laboratory tests limited number samples indicate, when using screw compression washer mounting technique, screw torque sufficient provide maximum power dissipation capability. compression washer helps maintain constant pressure package over time during large temperature excursions. Destructive laboratory tests show that using head 4-40 screw, without washers, applying torque excess will cause plastic crack around mounting hole, resulting loss isolation capability. Additional tests slotted 4-40 screws indicate that screw slot fails between without adversely affecting package. However, order positively ensure package integrity fully isolated device, Motorola does recommend exceeding mounting torque under mounting conditions. **For more information about mounting power semiconductors Application Note AN1040.
Rectifier Device Data
MBRF2045CT
PACKAGE DIMENSIONS
SEATING PLANE NOTES: DIMENSIONING TOLERANCING ANSI Y14.5M, 1982. CONTROLLING DIMENSION: INCH. INCHES 0.621 0.629 0.394 0.402 0.181 0.189 0.026 0.034 0.121 0.129 0.100 0.123 0.129 0.018 0.025 0.500 0.562 0.045 0.060 0.200 0.126 0.134 0.107 0.111 0.096 0.104 0.259 0.267 MILLIMETERS 15.78 15.97 10.01 10.21 4.60 4.80 0.67 0.86 3.08 3.27 2.54 3.13 3.27 0.46 0.64 12.70 14.27 1.14 1.52 5.08 3.21 3.40 2.72 2.81 2.44 2.64 6.58 6.78
0.25 (0.010)
STYLE ANODE CATHODE ANODE
CASE 221D-02 (ISOLATED TO-220) ISSUE
Motorola reserves right make changes without further notice products herein. Motorola makes warranty, representation guarantee regarding suitability products particular purpose, does Motorola assume liability arising application product circuit, specifically disclaims liability, including without limitation consequential incidental damages. "Typical" parameters which provided Motorola data sheets and/or specifications vary different applications actual performance vary over time. operating parameters, including "Typicals" must validated each customer application customer's technical experts. Motorola does convey license under patent rights rights others. Motorola products designed, intended, authorized components systems intended surgical implant into body, other applications intended support sustain life, other application which failure Motorola product could create situation where personal injury death occur. Should Buyer purchase Motorola products such unintended unauthorized application, Buyer shall indemnify hold Motorola officers, employees, subsidiaries, affiliates, distributors harmless against claims, costs, damages, expenses, reasonable attorney fees arising directly indirectly, claim personal injury death associated with such unintended unauthorized use, even such claim alleges that Motorola negligent regarding design manufacture part. Motorola registered trademarks Motorola, Inc. Motorola, Inc. Equal Opportunity/Affirmative Action Employer. Mfax trademark Motorola, Inc. reach EUROPE Locations Listed: Motorola Literature Distribution; P.O. 5405, Denver, Colorado 80217. 303-675-2140 1-800-441-2447 MfaxTM: RMFAX0@email.sps.mot.com TOUCHTONE 602-244-6609 INTERNET: http://Design-NET.com JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 81-3-3521-8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Ping Industrial Park, Ting Road, N.T., Hong Kong. 852-26629298
MBRF2045CT/D Rectifier Device Data

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